CN107693113A - A kind of low-temperature plasma snare knife surgery systems and method - Google Patents
A kind of low-temperature plasma snare knife surgery systems and method Download PDFInfo
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- CN107693113A CN107693113A CN201711025070.2A CN201711025070A CN107693113A CN 107693113 A CN107693113 A CN 107693113A CN 201711025070 A CN201711025070 A CN 201711025070A CN 107693113 A CN107693113 A CN 107693113A
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Classifications
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00059—Material properties
- A61B2018/00071—Electrical conductivity
- A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
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- A—HUMAN NECESSITIES
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- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
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- A61B18/1206—Generators therefor
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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Abstract
The invention discloses a kind of low-temperature plasma snare knife surgery systems and method, the system includes：Input block, receive the control instruction of user's input and the control instruction is sent to control unit；Control unit, the control instruction is parsed and first mode instruction is generated when the control instruction indicates first mode, calculated according to present impedance and the control instruction for the power output under first mode, first mode instruction and the first voltage associated with power output instruction are sent to interface unit；Interface unit, first mode instruction and first voltage instruction are transmitted to plasma cell, and receive the present impedance of target contact jaw from plasma cell and the present impedance is sent to control unit；Plasma cell, in response to receiving first mode instruction and first voltage instruction from the interface unit, cut into first mode with being vaporized snare to objective body based on the RF energy of plasma.
Description
Technical field
The present invention relates to radio frequency arts, and more particularly, to a kind of low-temperature plasma snare knife surgery systems
And method.
Background technology
With the continuous development of digestive endoscopy technology, the Endoscopic Treatment of disease of digestive tract also increasingly popularizes electric circle set knife
Supported the use with endoscope, for removing polyp or other excess tissues use in alimentary canal inscribe using high frequency electric.Biography can be exempted
System operative treatment risk, have the characteristics that small wound, good effect, surgical technic require high.
High frequency snare cutting electric knife is a kind of electrosurgical unit for substituting mechanical operation knife to carry out tissue snare cutting.High frequency
The operation principle of snare cutting electric knife is to tissue when being contacted by high-frequency high-voltage current caused by active electrode tip with body
Heated, realize separation and solidification to body tissue, so as to play the purpose of snare cutting and hemostasis.High frequency snare is cut
The crest voltage of electric knife coagulation pattern is big compared with TURP pattern, when high frequency electric is by the tissue of high impedance, can heat in the tissue,
Cause tissue to gasify or solidify, produce good haemostatic effect, but will also result in more obvious fire damage simultaneously.High frequency snare
Cut stable up to more than 150 DEG C of electric knife moment, the heating effect of the high frequency snare cutting electric knife of energy snare cutting tissue, and
It is not as caused by heating electrode or cutter head.It is that the high frequency electric of high current density gathers together, directly destroy be in
The tissue that active electrode tip is in contact.When being in contact with active electrode or the temperature of adjoining tissue or cell rises to carefully
During protein denaturation in born of the same parents, the effect of snare cutting and solidification is just produced.
The operating temperature of common high frequency snare cutting electric knife is typically 100~150 DEG C, this operating temperature counterpart tissue
High temperature is still fallen within, after histocyte is influenceed by this temperature, histone is denatured caused by snare is cut.It is especially common high
After frequency snare cutting electric knife continuous firing certain time, fire damage can be caused to tissue.And histiocytic degeneration necrosis is one
The individual process gradually developed, common high frequency snare cutting electric knife occur that the swelling of art area, postoperative pain etc. react.
In actual environment, high frequency snare cutting electric knife applies such as polyp or protrusion inside hospital's progress road
Complication is easily produced in the decollement of the tumor locus come, because temperature has damage to tissue.High frequency snare cutting electricity
Knife has two electrodes, and for an electrode paste with patient, another electrode is placed on snare cutting snare knife position, and in hand
Electric pathway is set on handle.High-frequency emission temperature is up to 400-500 degree, and this temperature tissue good to periphery can accidentally injure, and then
So that probability caused by bleeding problems is high, is easily damaged pathological tissue.In this case, doctor can not carry out pathological analysis,
And cause trouble when effectively analysis is arranged to section.
Such as Application No. CN201180055284.9 patent of invention discloses a kind of bipolar snare, the bipolar snare
Device includes：Elongate tubular electric insulation sheath, a pair of elongated, flexible conductor wires being arranged in sheath, and online distal end is set
The electric insulation connector at place, the electric insulation connector mechanically connect the distal end of this pair of lines and formed from the remote of sheath
The lasso that distal process goes out.Line is provided with electrical insulator, the electrical insulator covering line in every line in addition to selected part
All parts.Bipolar snare device also includes guiding elements, and the guiding elements is positioned in sheath, and is formed for conduction
The compartment of every conductor wire in line, guiding elements can be in sheath internal rotations.Guiding elements is also moved rearwards from the distal end of sheath
Extremely the whole lasso including at least a portion of connector is enabled to be received within the degree in sheath.However, this pair
Pole snare can not also avoid accidentally injuring problem caused by temperature is too high.
The content of the invention
According to an aspect of the present invention, there is provided a kind of low-temperature plasma snare knife surgery systems, the system include：
Input block, receive the control instruction of user's input and the control instruction is sent to control unit；
Control unit, the control instruction is parsed and generates the when the control instruction indicates first mode
One mode instruction, calculated according to present impedance and the control instruction for the power output under first mode, by first mode
Instruction and the first voltage associated with the power output under first mode instruction are sent to interface unit；
Interface unit, first mode instruction and first voltage instruction are received from described control unit, and by described first
Mode instruction and first voltage instruction are transmitted to plasma cell, and the current resistance of target contact jaw is received from plasma cell
Resist and the present impedance is sent to described control unit；
Plasma cell, in response to receiving first mode instruction from the interface unit and first voltage indicates, into the
One pattern：Carried out by conducting medium between the emission electrode and loop electrode at the target contact jaw of the plasma cell
Circuit activation applies first voltage to form thin layer between emission electrode and loop electrode so that the conducting medium reaches
First temperature and plasmasphere is converted into, so as to excite conducting medium to produce plasma using electric energy, and based on etc.
The RF energy of gas ions is vaporized snare cutting to objective body；
Wherein described emission electrode, plasmasphere, loop electrode and target contact jaw form loop.
Also the control instruction is parsed including described control unit and when the control instruction indicates the second mould
Second mode instruction is generated during formula, is calculated according to present impedance and the control instruction for the power output under second mode,
Second mode instruction and the second voltage associated with the power output under second mode instruction are sent to interface list
Member.
The interface unit receives second mode instruction and second voltage instruction from described control unit, and by described the
Two modes instruct and second voltage instruction is transmitted to plasma cell.
Enter the in response to the second instruction and second voltage instruction, the plasma cell received from the interface unit
Two modes：Apply second voltage so that the target contact jaw of the plasma cell is remained into second temperature, so as to by objective body
Carry out ablation solidification.
Also include alarm unit, for when receiving alarm signal, passing through auditory tone cues, text prompt and/or instruction
Lamp, which is shown, is alarmed；
Alarm signal is sent to control unit wherein after the plasma cell detects operation troubles, the control is single
Alarm signal is sent to the alarm unit by member.
The input block is foot-operated input equipment, and wherein user to the foot-operated input equipment by operating
To generate the control instruction, wherein the control instruction is two tuples<Pattern, power>.
Also include dropping liquid input block, for the conducting medium input instruction based on described control unit to plasma cell
The conducting medium is inputted, wherein the plasma cell measures the current surplus of the conducting medium and described will worked as in real time
Preceding surplus is sent to control unit, and described control unit is based on the current surplus and determines whether to generate the conducting medium input
Instruct and it is determined that the conducting medium input instruction is sent into dropping liquid input after generating the conducting medium input instruction
Unit.
Also include display unit, the running status for low-temperature plasma snare knife surgery systems described in real-time display.
The scope of the first voltage is 100Vrms to 300Vrms, and the scope of the second voltage be 60Vrms extremely
80Vrms。
The scope of first temperature is 35 DEG C -40 DEG C, and the scope of the second temperature is 40 DEG C -70 DEG C, and
In the flrst mode, thermal break-through distance is less than or equal to 150 microns, and under the second mode, thermal break-through distance
Less than or equal to 200 microns.
According to another aspect of the present invention, there is provided a kind of low-temperature plasma snare knife operation method, methods described include：
Receive the control instruction of user's input；
The control instruction is parsed and generation first mode refers to when the control instruction indicates first mode
Order, calculated for the power output under first mode, and determined and described first according to present impedance and the control instruction
The first voltage instruction that power output under pattern is associated；
First mode instruction and first voltage instruction are transmitted to plasma apparatus, and from the plasma apparatus
Receive the present impedance of target contact jaw；
In response to receiving first mode instruction and first voltage instruction, the plasma apparatus is promoted to enter the first mould
Formula：Circuit is carried out by conducting medium between the emission electrode and loop electrode of the target contact jaw of the plasma cell to swash
Live to form thin layer, apply first voltage between emission electrode and loop electrode so that the conducting medium reaches the first temperature
Spend and be converted into plasmasphere, so as to excite conducting medium to produce plasma using electric energy, and be based on plasma
RF energy objective body is vaporized snare cutting；
Wherein described emission electrode, plasmasphere, loop electrode and target contact jaw form loop.
Also include parsing the control instruction and generate second when the control instruction indicates second mode
Mode instruction, calculated according to present impedance and the control instruction for the power output under second mode, and determination and institute
The associated second voltage of the power output under second mode is stated to indicate.
Second mode instruction and second voltage instruction are transmitted to plasma apparatus.
In response to from the second instruction and second voltage instruction is received, the plasma apparatus enters second mode：Apply
Second voltage is solidifying so as to which objective body is carried out into ablation so that the target contact jaw of the plasma apparatus is remained into second temperature
Gu.
It is additionally included in when receiving alarm signal, is shown and reported by auditory tone cues, text prompt and/or indicator lamp
It is alert；
Alarm signal is wherein generated after operation troubles is detected.
Wherein user generates the control instruction by being operable to foot-operated input equipment, wherein the control refers to
Make as two tuples<Pattern, power>.
Also include inputting the conducting medium to the plasma apparatus based on conducting medium input instruction, wherein described etc.
Ion device measures the current surplus of the conducting medium and determines whether to lead described in generation based on the current surplus in real time
Dielectric input instruction.
Also include the running status of plasma apparatus described in real-time display.
The scope of the first voltage is 100Vrms to 300Vrms, and the scope of the second voltage be 60Vrms extremely
80Vrms。
The scope of first temperature is 35 DEG C -40 DEG C, and the scope of the second temperature is 40 DEG C -70 DEG C, and
In the flrst mode, thermal break-through distance is less than or equal to 150 microns, and under the second mode, thermal break-through distance
Less than or equal to 200 microns.
40-70 degree is only had according to the temperature of the work of the low-temperature plasma snare knife surgery systems of the application and method, from
And solve the problems, such as accidental injury to periphery good organization, bleeding problems and reduce complication.In addition, low temperature of the application etc. from
Subloop covers uses bipolar fashion in knife surgery systems and method structure, and loop is directly formed on conduit.
Brief description of the drawings
By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by：
Fig. 1 is the major part schematic diagram according to the plasma therapeutic apparatus of the preferred embodiment for the present invention；
Fig. 2 is the structural representation according to the plasma therapeutic apparatus of the preferred embodiment for the present invention；
Fig. 3 is the structural representation according to the low-temperature plasma snare knife surgery systems of the preferred embodiment for the present invention；
Fig. 4 is the flow chart according to the low-temperature plasma snare knife operation method of the preferred embodiment for the present invention；
Fig. 5 is the structural representation according to the low-temperature plasma snare knife surgical apparatus of the preferred embodiment for the present invention；With
And
Fig. 6-8 is according to the partial enlargement of the low-temperature plasma snare knife surgical apparatus of the preferred embodiment for the present invention or cut
Face schematic diagram.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.
The illustrative embodiments of the present invention are introduced with reference now to accompanying drawing, however, the present invention can use many different shapes
Formula is implemented, and is not limited to embodiment described herein, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
Fig. 1 is the functional schematic according to the plasma therapeutic apparatus 100 of the preferred embodiment for the present invention.Plasma therapeutic apparatus
Snare cutting, ablation and the solidification and hemostasis of such as polyp or outstanding tumor locus inside 100 can be used in roads.
In addition, the snare that plasma therapeutic apparatus 100 can also be used to soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx is cut
Cut, melt, solidifying and hemostasis.The usage time of plasma therapeutic apparatus 100 of the application is within 24 hours, according to time of contact point
Class belongs to brought into temporary contact, belong to outside access apparatus (with tissue/bone/dentine) according to contact human body qualitative classification and according to
The classification of medicine equipment architectural feature belongs to active medical apparatus.Annex bipolar operation electrode (the snare of plasma therapeutic apparatus 100
Knife) head belongs to disposable sterilized product.
Plasma therapeutic apparatus 100 uses bipolar scheme, and its working frequency is 110kHz.Plasma therapeutic apparatus 100 is logical
Cross snare cutting, ablation, solidification and the hemostasis of soft tissue during plasma technology realization is performed the operation to ear nose larynx etc..During work, wait from
Sub- therapeutic equipment 100 is used as conduction liquid by physiological saline, and a thin layer is formed when activating between emission electrode and loop electrode.When
When plasma therapeutic apparatus 100 gives enough energy (voltage), physiological saline translates into one and is made up of charged particle of energizing
Gas blanket (plasmasphere).That is, plasma therapeutic apparatus 100 is produced using energy excitation conducting medium (for example, physiological saline)
Plasma, and interrupt tissue element key by the energy of plasma.The energy of plasma is big by the biology such as protein
Molecule Direct Pyrolysis is into O2, CO2, N2Deng gas, so as to complete the vaporization snare cutting to tissue.When article on plasma therapeutic equipment 100
Work cutter head when giving low-voltage, electric field is less than the thresholding requirement for producing plasmasphere and produces tissue resistance heat, so as to
Tissue is subjected to ablation solidification and hemostasis.
As shown in figure 1, the functional architecture of plasma therapeutic apparatus 100 includes：Primary control program, alarm unit, interface are single
Member, output control unit, bipolar operation electrode (snare knife) interface, bipolar operation electrode (snare knife), floor push, foot control connect
Mouth, dropping liquid control valve and dropping liquid control valve interface.Wherein, primary control program, alarm unit, boundary element, output control, bipolar
Procedures electrode interface, foot control interface and dropping liquid control valve interface belong to the software section of plasma therapeutic apparatus 100.Plasma is controlled
It is as shown in table 1 to treat the function introduction of the section components of instrument 100,
The function introduction of the section components of table 1
Preferably, floor push can control the mode of operation of plasma therapeutic apparatus 100.The work of plasma therapeutic apparatus 100
Operation mode is divided into snare cut mode and coagulation mode.The classification of waterproof of floor push is classification of waterproof standard IPX8, and pin
Switch is stepped on to switch for electric pedal.
Preferably, the yellow pedal of floor push corresponds to snare cut mode, and the gear level of snare cut mode
Wei not be 1 to 9 grade.That is, when trampling the yellow pedal of floor push, plasma therapeutic apparatus 100 enters rise to bait cut mode.Snare
The gear regulative mode of cut mode is：Adjust in the state of snare cut mode by dark buttons on floor push (or
Yellow button on regulation host panel manually) it is adjusted.Snare cutting gear can be selected from any one shelves in 1 to 9 grade.
Wherein, gear is higher, and output voltage is bigger.In snare cut mode, 1 to 9 grade of output voltage is as shown in table 2：
Output gear in the snare cut mode of table 2
Preferably, the blue pedal of floor push corresponds to coagulation mode, and the gear range of coagulation mode is 1 to 5
Shelves.That is, when trampling the blue pedal of floor push, plasma therapeutic apparatus 100 enters coagulation mode.The gear of coagulation mode is adjusted
Section mode is：(by the changeable snare cut mode of mode key and coagulation mode) by blueness in the state of adjusting to coagulation mode
Dark buttons (or blue buttons above and below regulation host panel manually) are adjusted on pedal.During foot-operated dark buttons, blood coagulation shelves
Position can select bigger from any one shelves in 1 to 5 grade, its middle gear more high output voltage.When needing to carry out in Clinical practice
During blood coagulation, depress blue pedal and carry out blood coagulation.In coagulation mode, 1 to 5 grade of output voltage is as shown in table 3：
Output gear in the coagulation mode of table 3
Preferably, foot control interface is used for the control instruction for receiving floor push, and the control instruction is transmitted into master
Control program.Wherein, control instruction is two tuples<Pattern, power>.Pattern includes：Snare cut mode and coagulation mode.Enclosing
Cover in cut mode, power includes 9 gears, and in coagulation mode, power includes 5 gears.
Preferably, primary control program is parsed to the control instruction and when the control instruction indicates first mode
First mode instruction is generated, is calculated according to present impedance and the control instruction for the power output under first mode, by the
One mode instruction and the first voltage associated with the power output under first mode instruction are sent to output control list
Member.Wherein, initial present impedance is zero, i.e., when the start of plasma therapeutic apparatus 100 is operated, the present impedance of acquiescence is
Zero.The primary control program is parsed to the control instruction and generates second when the control instruction indicates second mode
Mode instruction, calculated according to present impedance and the control instruction for the power output under second mode, second mode is referred to
Order and the second voltage associated with the power output under second mode instruction are sent to output control unit.Wherein institute
Stating present impedance includes high impedance, middle impedance and Low ESR (0 impedance is Low ESR).Preferably, according to present impedance and described
Control instruction calculates to be included for the power output under first mode：If present impedance is high impedance and the control instruction
The 2nd grade under first mode is indicated, then the power output under first mode is arranged to the 4th grade；If present impedance is middle resistance
The 2nd grade under anti-and described control instruction instruction first mode, then the power output under first mode is arranged to the 3rd grade；
And if present impedance is the 2nd grade under Low ESR and control instruction instruction first mode, then by under first mode
Power output be arranged to the 2nd grade.Preferably, calculated according to present impedance and the control instruction for defeated under second mode
Going out power includes：If present impedance is the 2nd grade under high impedance and control instruction instruction second mode, by second
Power output under pattern is arranged to the 4th grade；If present impedance is middle impedance and the control instruction indicates second mode
Under the 2nd grade, then the power output under second mode is arranged to the 3rd grade；And if present impedance is Low ESR and institute
The 2nd grade under control instruction instruction second mode is stated, then the power output under second mode is arranged to the 2nd grade.Preferably, when
It is defeated using highest gear as reality when the power output being calculated exceedes the highest gear in first mode or second mode
Go out power.
Preferably, output control unit is used to receive first mode instruction and first voltage instruction from the primary control program,
And first mode instruction and first voltage instruction are transmitted to bipolar operation electrode interface, and from bipolar operation electrode
The present impedance of interface target contact jaw and the present impedance is sent to the primary control program.And the output
Control unit from the primary control program receive second mode instruction and second voltage instruction, and by the second mode instruction and
Second voltage instruction is transmitted to bipolar operation electrode interface.
Preferably, bipolar operation electrode interface is used for the power instruction for receiving primary control program and indicates to send out by the power
Bipolar operation electrode is given, and the real-time impedance of bipolar operation electrode is measured and passed through the real-time impedance defeated
Go out control unit and pass to primary control program.
Preferably, bipolar operation electrode from the bipolar operation electrode interface first mode in response to instructing and first
Voltage indicates, into first mode：Pass through emission electrode of the conducting medium at the target contact jaw of the bipolar operation electrode
Circuit activation is carried out between loop electrode to form thin layer, applies first voltage between emission electrode and loop electrode, makes
Obtain the conducting medium to reach the first temperature and be converted into plasmasphere, so as to excite conducting medium generation etc. using electric energy
Gas ions, and snare cutting is vaporized to objective body based on the RF energy of plasma.In response to from the bipolar hand
The second instruction and second voltage instruction, the bipolar operation electrode that art electrode interface receives enter second mode：Apply second
Voltage by the target contact jaw of the bipolar operation electrode to remain second temperature, so as to which objective body is carried out into ablation solidification.
Preferably, alarm unit is used for when receiving alarm signal, passes through auditory tone cues, text prompt and/or instruction
Lamp, which is shown, is alarmed.Alarm signal is sent to primary control program wherein after the bipolar operation electrode detects operation troubles,
Alarm signal is sent to the alarm unit by the primary control program.
Preferably, boundary element, the running status for low-temperature plasma snare knife surgery systems described in real-time display.
Preferably, dropping liquid control valve is used for based on the conducting medium input instruction of the primary control program to bipolar operation electrode
The conducting medium is inputted, wherein the bipolar operation electrode measures the current surplus of the conducting medium and by described in real time
Current surplus is sent to primary control program, the primary control program be based on the current surplus determine whether to generate the conducting medium it is defeated
Enter instruction and it is determined that the conducting medium input instruction is sent into dropping liquid control after generating the conducting medium input instruction
Valve processed.Preferably, dropping liquid control valve interface is used to realize the two-way communication between dropping liquid control valve and primary control program.
Preferably, the emission electrode at bipolar operation electrode tip catheter, plasmasphere, loop electrode and target contact
End forms loop.In snare cut mode, the operating temperature of bipolar operation electrode is 35 to 40 DEG C, and conventional electrosurgical knife
Operating temperature is 350 to 700 DEG C.The thermal break-through distance of bipolar operation electrode than conventional electrosurgical knife thermal break-through apart from small, its
The thermal break-through distance that the thermal break-through distance being trapped in cut mode is less than or equal in 150 microns and coagulation mode be less than or
Equal to 200 microns, and the thermal break-through of conventional electrosurgical knife distance is more than 9000 microns.
The operation principle of plasma therapeutic apparatus 100 is effect of plasma radiofrequency ablation at low temperature.Energy is produced using bipolar cutter head, by life
Reason salt solution is converted into plasma thin layer, dissociates the molecular link that cell component is formed in target tissue, causes tissue coagulation downright bad,
Form the effect of ablation or snare cutting.Due to working at relatively low temperature, cut than the high frequency snare that tradition uses
Electric knife is minimized degree to the fire damage of perienchyma.It can reduce target volume in 35 DEG C or so operating temperatures, target group
Capilary closing in knitting, cuts off lesion.Its low temperature and tissue volume reduction Ablation characteristic, more common Single-pole electric knife is with more shortening
Post-operative recovery time, mitigate the advantages of postoperative pain and reduction expenses of surgical treatment.Wherein, plasma therapeutic apparatus and common high frequency
The temperature of snare cutting electric knife is more as shown in table 4：
Table 4
Cutter head environment temperature (refers to isolated experiment research tissue fire damage report to plasma therapeutic apparatus less than 70 DEG C at work
Accuse), operating temperature is lower compared with traditional common high frequency snare cutting electric knife (100~150 DEG C of high temperature), although low
The treatment temperature counterpart tissue of warm plasma blade still falls within high temperature, and after histocyte is influenceed by this temperature, electricity equally occurs
Cutter ring set cutting causes histone to be denatured, and especially after certain time, also can cause fire damage to tissue.And organize thin
The degeneration necrosis of born of the same parents is a process gradually developed, therefore some patientss row low-temperature plasma Post operation, its art area swelling, postoperative
The reaction such as pain cuts electric knife response light unlike high frequency snare.The damage of plasma therapeutic apparatus and common high frequency snare cutting electric knife
Fire damage depth ratio is more as shown in table 5 below：
Table 5
| Fire damage depth when snare is cut | Fire damage depth during blood coagulation | |
| Plasma therapeutic apparatus | 150 microns of average value | 200 microns of average value |
| High frequency snare cuts electric knife | 1.23±0.24mm | 1.37±0.26mm |
Because each operating time is had differences so plasma therapeutic apparatus is in isolated experiment research tissue fire damage report
In selected maximum operating time, by contrasting the plasma therapeutic apparatus of visible maximum operating time and the high frequency snare of normal use
Cut electric knife heat waste depth.Therefore the heat waste depth of the plasma therapeutic apparatus of normal use should be less than high frequency snare cutting electric knife heat waste
Depth.
Fig. 2 is the major part schematic diagram according to the plasma therapeutic apparatus 200 of the preferred embodiment for the present invention.Such as Fig. 2 institutes
Show, the major part of plasma therapeutic apparatus 200 includes：Bipolar operation electrode interface 201, dropping liquid control valve interface 202, trample out
Close interface 203, display screen 204, mainboard 205, loudspeaker 206, front panel 207, trouble lamp 208, lower mould 209, upper mould 210,
Power module 211, dropping liquid control valve 212 and fan 213.
Preferably, trample switch interface 203 and be used to receiving the instruction of floor push, floor push and can control etc. from
The mode of operation of sub- therapeutic equipment 200.The mode of operation of plasma therapeutic apparatus 200 is divided into snare cut mode and coagulation mode.Pin
The classification of waterproof for stepping on switch is classification of waterproof standard IPX8, and floor push switchs for electric pedal.
Preferably, the yellow pedal of floor push corresponds to snare cut mode, and the gear level of snare cut mode
Wei not be 1 to 9 grade.That is, when trampling the yellow pedal of floor push, plasma therapeutic apparatus 200 enters rise to bait cut mode.Snare
The gear regulative mode of cut mode is：Adjust in the state of snare cut mode by dark buttons on floor push (or
Yellow button on regulation host panel manually) it is adjusted.Snare cutting gear can be selected from any one shelves in 1 to 9 grade.
Wherein, gear is higher, and output voltage is bigger.
Preferably, the blue pedal of floor push corresponds to coagulation mode, and the gear range of coagulation mode is 1 to 5
Shelves.That is, when trampling the blue pedal of floor push, plasma therapeutic apparatus 200 enters coagulation mode.The gear of coagulation mode is adjusted
Section mode is：(by the changeable snare cut mode of mode key and coagulation mode) by blueness in the state of adjusting to coagulation mode
Dark buttons (or blue buttons above and below regulation host panel manually) are adjusted on pedal.During foot-operated dark buttons, blood coagulation shelves
Position can select bigger from any one shelves in 1 to 5 grade, its middle gear more high output voltage.When needing to carry out in Clinical practice
During blood coagulation, depress blue pedal and carry out blood coagulation.
Preferably, the control instruction that switch interface 203 is used to receive floor push is trampled, and the control instruction is turned
Issue primary control program.Wherein, control instruction is two tuples<Pattern, power>.Pattern includes：Snare cut mode and blood coagulation mould
Formula.In snare cut mode, power includes 9 gears, and in coagulation mode, power includes 5 gears.
Preferably, mainboard 205 is used to accommodate firmware, and primary control program is stored in the firmware.Wherein, primary control program is to described
Control instruction is parsed and first mode instruction is generated when the control instruction indicates first mode, according to present impedance
Calculated with the control instruction for the power output under first mode, by first mode instruct and with the first mode
The associated first voltage instruction of power output be sent to output control unit.Wherein, initial present impedance is zero, that is, is existed
When the start of plasma therapeutic apparatus 200 is operated, the present impedance of acquiescence is zero.The primary control program enters to the control instruction
Row parsing and the generation second mode instruction when the control instruction indicates second mode, according to present impedance and the control
Instruction calculate be used for second mode under power output, by second mode instruct and with the power output under the second mode
Associated second voltage instruction is sent to output control unit.Wherein described present impedance includes high impedance, middle impedance and low
Impedance (0 impedance is Low ESR).Preferably, calculated according to present impedance and the control instruction for the output under first mode
Power includes：If present impedance is the 2nd grade under high impedance and control instruction instruction first mode, by the first mould
Power output under formula is arranged to the 4th grade；If present impedance is middle impedance and the control instruction is indicated under first mode
The 2nd grade, then the power output under first mode is arranged to the 3rd grade；And if present impedance is Low ESR and described
The 2nd grade under control instruction instruction first mode, then the power output under first mode is arranged to the 2nd grade.Preferably, according to
Present impedance and the control instruction calculate to be included for the power output under second mode：If present impedance be high impedance simultaneously
And the 2nd grade under the control instruction instruction second mode, then the power output under second mode is arranged to the 4th grade；If
Present impedance is the 2nd grade under middle impedance and control instruction instruction second mode, then by the output work under second mode
Rate is arranged to the 3rd grade；And if present impedance is the 2nd grade under Low ESR and control instruction instruction second mode,
The power output under second mode is then arranged to the 2nd grade.Preferably, when the power output being calculated exceedes first mode
Or during highest gear in second mode, real output is used as using highest gear.
Preferably, output control unit (not shown in Fig. 2) be used for from the primary control program receive first mode instruction and
First voltage is indicated, and first mode instruction and first voltage instruction are transmitted into bipolar operation electrode interface 201, with
And receive the present impedance of target contact jaw from bipolar operation electrode interface 201 and the present impedance is sent to the master
Control program.And the output control unit receives second mode instruction and second voltage instruction from the primary control program, and
Second mode instruction and second voltage instruction are transmitted to bipolar operation electrode interface 201.
Preferably, bipolar operation electrode interface 201 is used for the power instruction for receiving primary control program and refers to the power
Show and be sent to bipolar operation electrode, and the real-time impedance of bipolar operation electrode is measured and leads to the real-time impedance
Cross output control unit and pass to primary control program.
Preferably, bipolar operation electrode (not shown) from the bipolar operation electrode interface 201 in response to receiving the
One mode instruction and first voltage instruction, into first mode：Connect by target of the conducting medium in the bipolar operation electrode
Circuit activation is carried out between emission electrode and loop electrode at contravention to form thin layer, between emission electrode and loop electrode
Apply first voltage so that the conducting medium reaches the first temperature and is converted into plasmasphere, so as to swash using electric energy
Send out conducting medium and produce plasma, and be vaporized snare cutting to objective body based on the RF energy of plasma.Ring
The second instruction and second voltage instruction, the bipolar operation electrode that bipolar operation electrode interface 201 described in Ying Yucong receives are entered
Enter second mode：Apply second voltage so that the target contact jaw of the bipolar operation electrode is remained into second temperature, so that will
Objective body carries out ablation solidification.
Preferably, trouble lamp 208 is used for when receiving alarm signal, is shown and is alarmed by indicator lamp.Its
In after the bipolar operation electrode detects operation troubles to primary control program send alarm signal, the primary control program will alarm
Signal is sent to the trouble lamp 208.Loudspeaker 206 are used for when receiving alarm signal, are alarmed by sound.Its
In after the bipolar operation electrode detects operation troubles to primary control program send alarm signal, the primary control program will alarm
Signal is sent to the loudspeaker 206.
Preferably, display screen 204 is used for the running status of low-temperature plasma snare knife surgery systems described in real-time display.
Preferably, dropping liquid control valve 212 is used for based on the conducting medium input instruction of the primary control program to bipolar surgery
Electrode inputs the conducting medium, wherein the bipolar operation electrode measures the current surplus of the conducting medium and will in real time
The current surplus is sent to primary control program, and the primary control program is based on the current surplus and determines whether to generate conductive Jie
Matter input instruction and it is determined that the conducting medium input instruction is sent into drop after generating the conducting medium input instruction
Hydraulic control valve 212.Preferably, dropping liquid control valve interface 202 is two-way between dropping liquid control valve 212 and primary control program for realizing
Communication.
Preferably, the application uses double mode liquid outlet：1st, titration mode, i.e., a drop as the mode of infusion
The supply of one drop；And 2, continuous supply model, i.e., the pattern of liquid flow without interruption.Bipolar operation electrode interface (snare knife
Interface) it is connected by patch with Fig. 5 as described below bipolar electrode socket connector (snare knife joint), dropping liquid control valve connects
Mouth passes through connecting tube and Fig. 5 fluid-through chamber and connected.Floor push mouth is connected by connecting line with external pedal, for controlling
The supply and disconnection of energy and dropping liquid.When pedal is stepped on, energy and dropping liquid supply；When pedal unclamps, energy and drop
Liquid disconnects.
Preferably, the emission electrode at bipolar operation electrode tip catheter, plasmasphere, loop electrode and target contact
End forms loop.In snare cut mode, the operating temperature of bipolar operation electrode is 35 to 40 DEG C, and conventional electrosurgical knife
Operating temperature is 350 to 700 DEG C.The thermal break-through distance of bipolar operation electrode than conventional electrosurgical knife thermal break-through apart from small, its
The thermal break-through distance that the thermal break-through distance being trapped in cut mode is less than or equal in 150 microns and coagulation mode be less than or
Equal to 200 microns, and the thermal break-through of conventional electrosurgical knife distance is more than 9000 microns.
Preferably, upper mould 210 and lower mould 209 protect mainboard by way of combination.Fan 213 is used to radiate, and
Power module 211 is used to provide electric power for plasma therapeutic apparatus 200.Front panel 207 is used to carrying out data showing and operational control.
Fig. 3 is the structural representation according to the low-temperature plasma snare knife surgery systems 300 of the preferred embodiment for the present invention.
The circle of such as polyp or outstanding tumor locus inside the can be used in road of low-temperature plasma snare knife surgery systems 300
Set cutting, ablation and solidification and hemostasis.In addition, low-temperature plasma snare knife surgery systems 300 can also be used to joint, backbone,
Snare cutting, ablation, solidification and the hemostasis of soft tissue in the surgical operations such as skin, ear nose larynx.The low-temperature plasma circle of the application
The usage time of set knife surgery systems 300 is to belong to brought into temporary contact within 24 hours, according to time of contact classification, according to contact human body
Qualitative classification, which belongs to outside access apparatus (with tissue/bone/dentine) and belonged to according to the classification of medicine equipment architectural feature, to be had
Source medicine equipment.
Low-temperature plasma snare knife surgery systems 300 use bipolar scheme, and its working frequency is 110kHz.Low temperature etc.
Ion snare knife surgery systems 300 by plasma technology realize to ear nose larynx etc. perform the operation in soft tissue snare cut, ablation,
Solidification and hemostasis.During work, low-temperature plasma snare knife surgery systems 300 are used as conduction liquid, activation transmitting by physiological saline
A thin layer is formed when between electrode and loop electrode.When low-temperature plasma snare knife surgery systems 300 give enough energy
When (voltage), physiological saline translates into a gas blanket being made up of charged particle of energizing (plasmasphere).That is, low temperature etc. from
Subloop set knife surgery systems 300 produce plasma using energy excitation conducting medium (for example, physiological saline), and rely on etc.
The energy of gas ions interrupts tissue element key.The energy of plasma is by protein and other Direct Pyrolysis into O2, CO2,
N2Deng gas, so as to complete the vaporization snare cutting to tissue.When the work cutter head of article on plasma therapeutic equipment 100 gives low-voltage
When, electric field less than produce plasmasphere thresholding requirement and produce tissue resistance heat, so as to by tissue carry out ablation solidification with
Hemostasis.
As shown in figure 3, low-temperature plasma snare knife surgery systems 300 include：Input block 301, control unit 302, connect
Mouth unit 303, plasma cell 304, alarm unit 305, dropping liquid input block 306 and display unit 307.Preferably, it is defeated
It is, for example, floor push to enter unit 301, and floor push can control the Working mould of low-temperature plasma snare knife surgery systems 300
Formula.The mode of operation of low-temperature plasma snare knife surgery systems 300 is divided into snare cut mode and coagulation mode.Floor push
Classification of waterproof is classification of waterproof standard IPX8, and floor push switchs for electric pedal.
Preferably, the yellow pedal of floor push corresponds to snare cut mode, and the gear level of snare cut mode
Wei not be 1 to 9 grade.That is, when trampling the yellow pedal of floor push, low-temperature plasma snare knife surgery systems 300 enter rise to bait
Cut mode.The gear regulative mode of snare cut mode is：By floor push in the state of adjusting to snare cut mode
Upper dark buttons (or yellow button on regulation host panel manually) are adjusted.Snare cutting gear can be selected from 1 to 9 grade
In any one shelves.Wherein, gear is higher, and output voltage is bigger.
Preferably, the blue pedal of floor push corresponds to coagulation mode, and the gear range of coagulation mode is 1 to 5
Shelves.That is, when trampling the blue pedal of floor push, low-temperature plasma snare knife surgery systems 300 enter coagulation mode.Blood coagulation
The gear regulative mode of pattern is：(by the changeable snare cut mode of mode key and coagulated in the state of adjusting to coagulation mode
Blood pattern) it is adjusted by dark buttons on blue pedal (or blue buttons above and below regulation host panel manually).Foot-operated black
During button, blood coagulation gear can select bigger from any one shelves in 1 to 5 grade, its middle gear more high output voltage.When clinic makes
When needing to carry out blood coagulation in, depress blue pedal and carry out blood coagulation.
Preferably, foot control interface is used for the control instruction for receiving floor push, and the control instruction is transmitted into master
Control program.Wherein, control instruction is two tuples<Pattern, power>.Pattern includes：Snare cut mode and coagulation mode.Enclosing
Cover in cut mode, power includes 9 gears, and in coagulation mode, power includes 5 gears.
Preferably, control unit 302 is parsed to the control instruction and when the control instruction indicates the first mould
First mode instruction is generated during formula, is calculated according to present impedance and the control instruction for the power output under first mode,
First mode instruction and the first voltage associated with the power output under first mode instruction are sent to interface list
Member 303.Wherein, initial present impedance is zero, i.e., when the start of low-temperature plasma snare knife surgery systems 300 is operated,
The present impedance of acquiescence is zero.Described control unit 302 is parsed to the control instruction and when the control instruction refers to
Second mode instruction is generated when showing second mode, is calculated according to present impedance and the control instruction for defeated under second mode
Go out power, second mode instruction and the second voltage associated with the power output under second mode instruction are sent to
Interface unit 303.Wherein described present impedance includes high impedance, middle impedance and Low ESR (0 impedance is Low ESR).Preferably,
Calculated according to present impedance and the control instruction includes for the power output under first mode：If present impedance is high resistant
The 2nd grade under anti-and described control instruction instruction first mode, then the power output under first mode is arranged to the 4th grade；
If present impedance is the 2nd grade under middle impedance and control instruction instruction first mode, will be defeated under first mode
Go out power setting for the 3rd grade；And if present impedance is the 2 under Low ESR and control instruction instruction first mode
Shelves, then be arranged to the 2nd grade by the power output under first mode.Preferably, calculated according to present impedance and the control instruction
Include for the power output under second mode：If present impedance is high impedance and the control instruction indicates second mode
Under the 2nd grade, then the power output under second mode is arranged to the 4th grade；If present impedance is middle impedance and the control
The 2nd grade under system instruction instruction second mode, then the power output under second mode is arranged to the 3rd grade；It is and if current
Impedance is the 2nd grade under Low ESR and control instruction instruction second mode, then sets the power output under second mode
It is set to the 2nd grade.Preferably, when the power output being calculated exceedes the highest gear in first mode or second mode,
Real output is used as using highest gear.
Preferably, interface unit 303 is used to receive first mode instruction from described control unit 302 and first voltage refers to
Show, and first mode instruction and first voltage instruction are transmitted to plasma cell 304, and from plasma cell
304 receive the present impedance of target contact jaws and the present impedance are sent into described control unit 302.And described connect
Mouth unit 303 receives second mode instruction and second voltage instruction from described control unit 302, and the second mode is referred to
Order and second voltage instruction are transmitted to plasma cell 304.
Preferably, interface unit 303 is used for the power instruction of reception control unit 302 and indicates to send by the power
Real-time impedance to plasma cell 304, and article on plasma unit 304 measures and by the real-time impedance by connecing
Mouth unit 303 passes to control unit 302.
Preferably, plasma cell 304 from the plasma cell 304 in response to receiving first mode instruction and the first electricity
Pressure instruction, into first mode：By emission electrode of the conducting medium at the target contact jaw of the plasma cell 304 and
Circuit activation is carried out between loop electrode to form thin layer, applies first voltage between emission electrode and loop electrode so that
The conducting medium reaches the first temperature and is converted into plasmasphere, so as to using electric energy excite conducting medium produce etc. from
Daughter, and snare cutting is vaporized to objective body based on the RF energy of plasma.In response to from the plasma list
The second instruction and second voltage instruction, the plasma cell 304 that member 304 receives enter second mode：Apply second voltage
So that the target contact jaw of the plasma cell 304 is remained into second temperature, so as to which objective body is carried out into ablation solidification.
Preferably, alarm unit 305 is used for when receiving alarm signal, by auditory tone cues, text prompt and/or refers to
Show that lamp is shown to be alarmed.Send and alarm to control unit 302 wherein after the plasma cell 304 detects operation troubles
Alarm signal is sent to the alarm unit 305 by signal, described control unit 302.
Preferably, dropping liquid input block 306 be used for based on the conducting medium input instruction of described control unit 302 to wait from
Subelement 304 inputs the conducting medium, wherein the plasma cell 304 measures the current surplus of the conducting medium in real time
And the current surplus is sent to control unit 302, described control unit 302 is based on the current surplus and determines whether to give birth to
Into the conducting medium input instruction and it is determined that the conducting medium is inputted after generating the conducting medium input instruction
Instruction is sent to dropping liquid input block 306.
Preferably, emission electrode, plasmasphere, loop electrode and the target at the tip catheter of plasma cell 304 connect
Contravention forms loop.In snare cut mode, the operating temperature of plasma cell 304 is 35 to 40 DEG C, and conventional electrosurgical
The operating temperature of knife is 350 to 700 DEG C.Thermal break-through distance of the thermal break-through distance of plasma cell 304 than conventional electrosurgical knife
Thermal break-through distance small, that its thermal break-through distance being trapped in cut mode is less than or equal in 150 microns and coagulation mode
Less than or equal to 200 microns, and the thermal break-through of conventional electrosurgical knife distance is more than 9000 microns.
Preferably, display unit 307, the operation shape for low-temperature plasma snare knife surgery systems described in real-time display
State.The operation principle of low-temperature plasma snare knife surgery systems 300 is effect of plasma radiofrequency ablation at low temperature.Energy is produced using bipolar cutter head
Amount, physiological saline is converted into plasma thin layer, dissociates the molecular link that cell component is formed in target tissue, cause tissue coagulation
Property necrosis, formed ablation or snare cutting effect.Due to working at relatively low temperature, than traditional high-frequency ring used
Set cutting electric knife is minimized degree to the fire damage of perienchyma.Target volume can be made to contract in 35 DEG C or so operating temperatures
It is small, the capilary closing in target tissue, cut off lesion.Its low temperature and tissue volume reduction Ablation characteristic, more common Single-pole electric knife is more
The advantages of with shortening post-operative recovery time, mitigating postoperative pain and reduce expenses of surgical treatment.Low-temperature plasma snare knife hand
Cutter head environment temperature is less than 70 DEG C (referring to the report of isolated experiment research tissue fire damage) to art system 300 at work, with tradition
Common high frequency snare cutting electric knife (100~150 DEG C of high temperature) in meaning is lower compared to operating temperature, although low temperature-controlled plasma radio-frequency ablation
Treatment temperature counterpart tissue still fall within high temperature, after histocyte is influenceed by this temperature, equally occur electric knife snare cut
Cause histone to be denatured, especially after certain time, can also cause fire damage to tissue.And it is histiocytic denaturation it is bad
Extremely it is a process gradually developed, therefore some patientss row low-temperature plasma Post operation, its swelling of art area, postoperative pain etc. react
Electric knife response light is cut unlike high frequency snare.Because each operating time is had differences so plasma therapeutic apparatus is in isolated experiment
Selected maximum operating time in research tissue fire damage report, by contrast visible maximum operating time plasma therapeutic apparatus and
The high frequency snare cutting electric knife heat waste depth of normal use.Therefore the heat waste depth of the plasma therapeutic apparatus of normal use should be less than height
Frequency snare cuts electric knife heat waste depth.
Fig. 4 is the flow chart according to the low-temperature plasma snare knife operation method 400 of the preferred embodiment for the present invention.Such as figure
Shown in 4, method 400 is since step 401 place.In step 401, the control instruction that user inputs is received.
In step 402, the control instruction is parsed and generated when the control instruction indicates first mode
First mode instructs, and is calculated according to present impedance and the control instruction for the power output under first mode.
In step 403, it is determined that the first voltage instruction associated with the power output under the first mode.
In step 404, first mode instruction and first voltage instruction are transmitted to plasma apparatus, and from described
Plasma apparatus receives the present impedance of target contact jaw.
In step 405, indicated in response to receiving first mode instruction and first voltage, promote the plasma apparatus to enter
Enter first mode：Entered by conducting medium between the emission electrode and loop electrode of the target contact jaw of the plasma cell
Row Circuit activation applies first voltage to form thin layer between emission electrode and loop electrode so that the conducting medium reaches
To the first temperature and plasmasphere is converted into, so as to excite conducting medium to produce plasma using electric energy, and is based on
The RF energy of plasma is vaporized snare cutting to objective body；
Wherein described emission electrode, plasmasphere, loop electrode and target contact jaw form loop.
Also include parsing the control instruction and generate second when the control instruction indicates second mode
Mode instruction, calculated according to present impedance and the control instruction for the power output under second mode, and determination and institute
The associated second voltage of the power output under second mode is stated to indicate.Second mode instruction and second voltage instruction are turned
Issue plasma apparatus.In response to from the second instruction and second voltage instruction is received, the plasma apparatus enters the second mould
Formula：Apply second voltage so that the target contact jaw of the plasma apparatus is remained into second temperature, so as to which objective body be carried out
Ablation solidification.
It is additionally included in when receiving alarm signal, is shown and reported by auditory tone cues, text prompt and/or indicator lamp
It is alert；Alarm signal is wherein generated after operation troubles is detected.
Wherein user generates the control instruction by being operable to foot-operated input equipment, wherein the control refers to
Make as two tuples<Pattern, power>.
Also include inputting the conducting medium to the plasma apparatus based on conducting medium input instruction, wherein described etc.
Ion device measures the current surplus of the conducting medium and determines whether to lead described in generation based on the current surplus in real time
Dielectric input instruction.The running status of plasma apparatus described in the real-time display of method 400.
Fig. 5 is the structural representation according to the low-temperature plasma snare knife surgical apparatus of the preferred embodiment for the present invention.Such as
Shown in Fig. 5, low-temperature plasma snare knife surgical apparatus includes：Emission electrode (snare cutter head) 501, loop electrode (circle set) 502,
Pipe sheath 503, injecting cavity interface 505, rod cap 506, cushion block 507, sliding block (band socket aperture) 508, socket Pin 509 and pull bar
510.Preferably, emission electrode (snare cutter head) 501 and loop electrode (circle set) 502 are imported by identical conduit and in mesh
Standard type forms galvanic circle.Emission electrode (snare cutter head) 501, receive the radio-frequency generator via socket Pin 509 and produced
The first raw input voltage, apply first voltage between emission electrode (snare cutter head) 501 and loop electrode (circle set) 502,
So that the conducting medium reaches the first temperature and promotes the conducting medium to be converted into plasmasphere, so as to utilize electric energy
Excite conducting medium to produce plasma, and be vaporized snare cutting to objective body based on the RF energy of plasma.
Pipe sheath 503, for providing external sheath function.Injecting cavity interface 505 is based on liquid input instruction and inputted to liquid input block
The liquid, wherein the liquid input block measures the current surplus of the liquid and sends the current surplus in real time
To control unit, described control unit be based on the current surplus determine whether to generate the liquid input instruction and it is determined that
Generate and the liquid input instruction is sent to dropping liquid input block after the liquid input instruction.Injecting cavity interface 505 is position
In the annular chamber of emission electrode wire described later (snare cutter head wire) outside.
Pull bar 510 is used to make operator by providing support force pull bar 510.Socket Pin 509 is connected by high frequency
Line is connected with radio-frequency generator, for receiving the first input voltage caused by the radio-frequency generator.Socket Pin 509 is received
Second input voltage caused by the radio-frequency generator and second input voltage is transferred to emission electrode, launched
Apply second voltage between electrode 501 and loop electrode 502, to cause objective body to remain second temperature, so as to promote target
Body carries out ablation solidification.Liquid input block (not shown in Fig. 5), in response to liquid input signal, to objective body at input liquid
Body is so as to the thin layer of the formation conducting medium between emission electrode and loop electrode.Liquid input block passes through in following pattern
One kind carries out liquid input：Titration mode and continuous liquid supply pattern.
Wherein, the material of emission electrode (snare cutter head) 501 is that stainless steel 304, the material of loop electrode (circle set) 502 are
Stainless steel 304, the material of pipe sheath 503 are that polytetrafluoroethylene PTFE, the material of injecting cavity interface 505 are acrylonitrile-butadiene-benzene
Ethylene copolymer ABS, the material of rod cap 506 are that ABS, the material of cushion block 507 are that ABS, the material of sliding block (with socket aperture) are
ABS, socket Pin material are that the material of stainless steel 304 and pull bar 510 is ABS.
As shown in figure 5, the snare cutter head that emission electrode 2 forms closing around objective body is ellipse, can also be six
Side shape or semilune, snare cutting is carried out to adapt to different target shapes.Further, the head of lasso can have
It is easy to the tip shunk, sophisticated both sides seal wire is bonded to each other, and can play guiding function when lasso shrinks into sheath, just
Contraction and opening in lasso.
The length of loop electrode 502 can be arbitrarily rational numerical value, such as 4 to 5 millimeters.Wherein, loop electrode 502
Distance close to the one end at the top of pipe sheath 503 and the top end face of pipe sheath 503 can be arbitrarily rational numerical value, such as 2 to 3 millis
Rice.Wherein, delivery port 511 (or being referred to as infusion port) sets the top end face of tube-placing sheath 503.
Emission electrode 501 is telescopically set by sliding block 508.In an initial condition, the retraction of emission electrode 501 causes pipe sheath
In 503, to facilitate the front end of pipe sheath 503 to enter human body.After specified location is reached, sliding block 508 moves forward, by emission electrode
501 release the top end face of pipe sheath 503.Sliding block 508 is at socket aperture, and socket Pin 509 is arranged in socket aperture.
Fig. 6-8 is according to the partial enlargement of the low-temperature plasma snare knife surgical apparatus of the preferred embodiment for the present invention or cut
Face schematic diagram.Fig. 6 shows the close-up schematic view of bipolar electrode socket connector (snare knife joint) 600, including：Hair
Radio polar conductor (snare cutter head wire) 601 and loop electrode wire 602.Low-temperature plasma snare knife surgical apparatus can be used in
Change snare cutting, ablation and the solidification and hemostasis of such as polyp or outstanding tumor locus inside road.In addition, low temperature etc.
The snare that ion snare knife surgical apparatus can also be used to soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx is cut
Cut, melt, solidifying and hemostasis.The low-temperature plasma snare knife surgical apparatus usage time of the application be 24 hours within, according to
Time of contact classification belongs to brought into temporary contact, belongs to outside access apparatus according to contact human body qualitative classification (with tissue/bone/tooth sheet
Matter) and according to medicine equipment architectural feature classification belong to active medical apparatus.Low-temperature plasma snare knife surgical apparatus it is attached
Part bipolar operation electrode belongs to disposable sterilized product.
Low-temperature plasma snare knife surgical apparatus uses bipolar scheme, and its working frequency is 110kHz.Plasma is controlled
Treat snare cutting, ablation, solidification and the hemostasis of soft tissue during instrument 100 is performed the operation by plasma technology realization to ear nose larynx etc..Work
When making, low-temperature plasma snare knife surgical apparatus is used as conduction liquid by physiological saline, activate emission electrode and loop electrode it
Between when formed a thin layer.When plasma therapeutic apparatus gives enough energy (voltage), physiological saline translate into one by
The gas blanket (plasmasphere) of charged particle of energizing composition.That is, low-temperature plasma snare knife surgical apparatus is led using energy excitation
Dielectric (for example, physiological saline) produces plasma, and interrupts tissue element key by the energy of plasma.Plasma
The energy of body is by protein and other Direct Pyrolysis into O2, CO2, N2Deng gas, so as to complete the vaporization snare to tissue
Cutting.When the work cutter head to low-temperature plasma snare knife surgical apparatus gives low-voltage, electric field is less than generation plasmasphere
Thresholding requirement and produce tissue resistance heat, so as to by tissue carry out ablation solidification and hemostasis.
Fig. 7 shows the schematic cross-section along B-B, including：Emission electrode wire (snare cutter head wire) 701, return
Path electrode wire 702, fluid-through chamber 704 and emission electrode chamber 705.In more detail, Fig. 7 shows emission electrode wire (snare
Cutter head wire) 701 profile 706, including insulating barrier 707 and wire 708.Emission electrode wire (lead by snare cutter head
Line) insulating barrier is needed, insulation and heat-insulated effect are acted as, loop electrode wire 702 can be not provided with insulating barrier.
In addition, those skilled in the art is as needed, can also be using loop electrode chamber 705 as fluid-through chamber, in loop
When electrode cavity 705 is as fluid-through chamber, loop electrode wire 702 need to set insulating barrier.
Fig. 8 shows the schematic cross-section along C-C, including emission electrode wire (snare cutter head wire) 801 and returns
Path electrode wire 802.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
What subsidiary Patent right requirement was limited, except the present invention other embodiments disclosed above equally fall the present invention's
In the range of.
Normally, all terms used in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly being defined in addition wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurately order, unless explicitly stated otherwise.
Claims (20)
1. a kind of low-temperature plasma snare knife surgery systems, it is characterised in that the system includes：
Input block, receive the control instruction of user's input and the control instruction is sent to control unit；
Control unit, the control instruction is parsed and generates the first mould when the control instruction indicates first mode
Formula instructs, and is calculated according to present impedance and the control instruction for the power output under first mode, first mode is instructed
And the first voltage instruction associated with the power output under the first mode is sent to interface unit；
Interface unit, first mode instruction and first voltage instruction are received from described control unit, and by the first mode
Instruction and first voltage instruction are transmitted to plasma cell, and receive the present impedance of target contact jaw simultaneously from plasma cell
And the present impedance is sent to described control unit；
Plasma cell, in response to receiving first mode instruction and first voltage instruction from the interface unit, into the first mould
Formula：Circuit is carried out between the emission electrode and loop electrode at the target contact jaw of the plasma cell by conducting medium
Activation applies first voltage so that the conducting medium reaches first to form thin layer between emission electrode and loop electrode
Temperature and plasmasphere is converted into, so as to excite conducting medium to produce plasma using electric energy, and is based on plasma
The RF energy of body is vaporized snare cutting to objective body；
Wherein described emission electrode, plasmasphere, loop electrode and target contact jaw form loop.
2. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that also single including the control
Member is parsed to the control instruction and second mode instruction is generated when the control instruction indicates second mode, according to
Present impedance and the control instruction are calculated for the power output under second mode, second mode are instructed and with described the
The second voltage instruction that power output under two modes is associated is sent to interface unit.
3. system according to claim 2, the interface unit receives second mode instruction and the from described control unit
Two voltages are indicated, and second mode instruction and second voltage instruction are transmitted into plasma cell.
4. low-temperature plasma snare knife surgery systems according to claim 3, it is characterised in that in response to from the interface
The second instruction and second voltage instruction, the plasma cell that unit receives enter second mode：Apply second voltage to incite somebody to action
The target contact jaw of the plasma cell remains second temperature, so as to which objective body is carried out into ablation solidification.
5. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that also including alarm unit,
For when receiving alarm signal, being shown and being alarmed by auditory tone cues, text prompt and/or indicator lamp；
Alarm signal is sent to control unit wherein after the plasma cell detects operation troubles, described control unit will
Alarm signal is sent to the alarm unit.
6. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that the input block is pin
Step on formula input equipment, wherein user by being operable to generate the control instruction to the foot-operated input equipment, wherein
The control instruction is two tuples<Pattern, power>.
7. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that also inputted including dropping liquid single
Member, the conducting medium, wherein institute are inputted to plasma cell for the conducting medium input instruction based on described control unit
State plasma cell to measure the current surplus of the conducting medium in real time and the current surplus is sent into control unit, institute
Control unit is stated to determine whether to generate the conducting medium input instruction and it is determined that described in generation based on the current surplus
The conducting medium input instruction is sent to dropping liquid input block after conducting medium input instruction.
8. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that also including display unit,
Running status for low-temperature plasma snare knife surgery systems described in real-time display.
9. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that the model of the first voltage
Enclose for 100Vrms to 300Vrms, and the scope of the second voltage is 60Vrms to 80Vrms.
10. low-temperature plasma snare knife surgery systems according to claim 1, it is characterised in that first temperature
Scope is 35 DEG C -40 DEG C, and the scope of the second temperature is 40 DEG C -70 DEG C, and
In the flrst mode, thermal break-through distance is less than or equal to 150 microns, and under the second mode, thermal break-through distance is less than
Or equal to 200 microns.
11. a kind of low-temperature plasma snare knife operation method, it is characterised in that methods described includes：
Receive the control instruction of user's input；
The control instruction is parsed and first mode instruction, root are generated when the control instruction indicates first mode
Calculated according to present impedance and the control instruction under the power output under first mode, and determination and the first mode
The associated first voltage instruction of power output；
First mode instruction and first voltage instruction are transmitted to plasma apparatus, and received from the plasma apparatus
The present impedance of target contact jaw；
In response to receiving first mode instruction and first voltage instruction, the plasma apparatus is promoted to enter first mode：It is logical
Cross conducting medium carried out between the emission electrode and loop electrode of the target contact jaw of the plasma cell Circuit activation with
Thin layer is formed, applies first voltage between emission electrode and loop electrode so that the conducting medium reaches the first temperature simultaneously
And plasmasphere is converted into, so as to excite conducting medium to produce plasma, and penetrating based on plasma using electric energy
Frequency energy is vaporized snare cutting to objective body；
Wherein described emission electrode, plasmasphere, loop electrode and target contact jaw form loop.
12. being parsed according to the method for claim 11, in addition to the control instruction and when the control refers to
Second mode instruction is generated during order instruction second mode, is calculated according to present impedance and the control instruction under second mode
Power output, and determine that the second voltage associated with the power output under the second mode indicates.
13. second mode instruction and second voltage instruction according to the method for claim 12, are transmitted to plasma
Equipment.
14. low-temperature plasma snare knife operation method according to claim 13, it is characterised in that in response to from receiving
Second instruction and second voltage instruction, the plasma apparatus enter second mode：Apply second voltage with by the plasma
The target contact jaw of equipment remains second temperature, so as to which objective body is carried out into ablation solidification.
15. according to the method for claim 11, being additionally included in when receiving alarm signal, carried by auditory tone cues, word
Show and/or indicator lamp shows and alarmed；
Alarm signal is wherein generated after operation troubles is detected.
16. low-temperature plasma snare knife operation method according to claim 11, it is characterised in that wherein user passes through right
Foot-operated input equipment is operable to generate the control instruction, wherein the control instruction is two tuples<Pattern, power>.
17. low-temperature plasma snare knife operation method according to claim 11, it is characterised in that also include based on conduction
Medium input instruction inputs the conducting medium to the plasma apparatus, wherein being led described in plasma apparatus measurement in real time
Dielectric current surplus and determine whether to generate the conducting medium input instruction based on the current surplus.
18. low-temperature plasma snare knife operation method according to claim 11, it is characterised in that also including real-time display
The running status of the plasma apparatus.
19. low-temperature plasma snare knife operation method according to claim 11, it is characterised in that the first voltage
Scope is 100Vrms to 300Vrms, and the scope of the second voltage is 60Vrms to 80Vrms.
20. low-temperature plasma snare knife operation method according to claim 11, it is characterised in that first temperature
Scope is 35 DEG C -40 DEG C, and the scope of the second temperature is 40 DEG C -70 DEG C, and
In the flrst mode, thermal break-through distance is less than or equal to 150 microns, and under the second mode, thermal break-through distance is less than
Or equal to 200 microns.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711025070.2A CN107693113A (en) | 2017-10-27 | 2017-10-27 | A kind of low-temperature plasma snare knife surgery systems and method |
| CN201811261155.5A CN109771024B (en) | 2017-10-27 | 2018-10-27 | Low-temperature plasma snare knife operation system |
| CN201821749653.XU CN210521086U (en) | 2017-10-27 | 2018-10-27 | Low-temperature plasma snare knife surgical system |
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| CN201711025070.2A CN107693113A (en) | 2017-10-27 | 2017-10-27 | A kind of low-temperature plasma snare knife surgery systems and method |
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| CN201811261155.5A Active CN109771024B (en) | 2017-10-27 | 2018-10-27 | Low-temperature plasma snare knife operation system |
| CN201821749653.XU Active CN210521086U (en) | 2017-10-27 | 2018-10-27 | Low-temperature plasma snare knife surgical system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080078A1 (en) * | 2017-10-27 | 2019-05-02 | 上海诺英医疗器械有限公司 | Low temperature plasma snare knife surgical device, system and method |
| WO2023236057A1 (en) * | 2022-06-07 | 2023-12-14 | 上海诺英医疗器械有限公司 | Electric snare |
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| CN107693113A (en) * | 2017-10-27 | 2018-02-16 | 上海诺英医疗器械有限公司 | A kind of low-temperature plasma snare knife surgery systems and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103040519B (en) * | 2012-12-21 | 2015-01-14 | 成都美创电子科技有限公司 | Low-temperature plasma generator applied to surgeries and knife system controlled by same |
| GB2514100B (en) * | 2013-05-08 | 2020-04-01 | Creo Medical Ltd | Apparatus for Controlling Power Delivered by Electrosurgical Probe |
| CN103654945A (en) * | 2013-11-21 | 2014-03-26 | 方润医疗器械科技（上海）有限公司 | Low-temperature plasma treating system |
| EP3130302A4 (en) * | 2014-04-11 | 2017-12-13 | Olympus Corporation | Plasma treatment system |
| CN107693113A (en) * | 2017-10-27 | 2018-02-16 | 上海诺英医疗器械有限公司 | A kind of low-temperature plasma snare knife surgery systems and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080078A1 (en) * | 2017-10-27 | 2019-05-02 | 上海诺英医疗器械有限公司 | Low temperature plasma snare knife surgical device, system and method |
| WO2023236057A1 (en) * | 2022-06-07 | 2023-12-14 | 上海诺英医疗器械有限公司 | Electric snare |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109771024B (en) | 2024-10-01 |
| CN210521086U (en) | 2020-05-15 |
| CN109771024A (en) | 2019-05-21 |
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Application publication date: 20180216 |