CN209074862U - Endoscope-use electric bipolar snare - Google Patents
Endoscope-use electric bipolar snare Download PDFInfo
- Publication number
- CN209074862U CN209074862U CN201820762423.0U CN201820762423U CN209074862U CN 209074862 U CN209074862 U CN 209074862U CN 201820762423 U CN201820762423 U CN 201820762423U CN 209074862 U CN209074862 U CN 209074862U
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- China
- Prior art keywords
- handle
- endoscope
- sliding sleeve
- ring wire
- use electric
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- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000005404 monopole Effects 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 6
- 208000037062 Polyps Diseases 0.000 description 3
- 230000023555 blood coagulation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013500 performance material Substances 0.000 description 2
- 210000001835 viscera Anatomy 0.000 description 2
- 208000013935 Electric injury Diseases 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002674 endoscopic surgery Methods 0.000 description 1
- 230000007159 enucleation Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
A kind of endoscope-use electric bipolar snare includes handle, sliding sleeve, fixing seat, double lumen tube sheath, two pull rods, two ring wire electrodes and insulating ceramics head；Wherein, handle is handheld component, fixing seat is set on the handle, sliding sleeve is connected on handle and can slide on the handle, the sliding sleeve is equipped with interposer socket, double lumen tube sheath is fixedly connected on the front end of handle, inside is equipped with two lumens of electrically insulated from one another, two pull rod electrically insulated from one another, it is placed through in two lumens of the double lumen tube sheath respectively, one end of two pull rod passes through fixing seat and is separately connected the interposer socket of sliding sleeve, and it is moved forward and backward by sliding sleeve drive, the other end is electrically connected the rear end of two ring wire electrodes, the two ring wire electrode is the semicircular electrode of electrically insulated from one another, its front end carries out structure connection by insulating ceramics head.The utility model have many advantages, such as structure be simple and convenient to operate, securely and reliably, low cost, be suitable for all kinds of common electric knifes on.
Description
Technical field
The utility model relates to medical endoscope surgical apparatus, and in particular to a kind of endoscope-use electric bipolar snare,
Belong to the field of medical instrument technology.
Background technique
Electric monopole snare is very common attachment in endoscopic surgery, is mainly used for the excision of polyp.Host is height
Frequency electric knife, needs to paste neutral pole plate when use on patient body, and electric current passes through neutral pole plate and electric monopole snare and master
Machine forms complete high-frequency current circuit, implements cutting blood coagulation in snare front end.The access for passing through human body due to high-frequency current
It is too long, sometimes even will be by internal organs, not only current loss is big, and the power needed is larger, and there are some potential safety problemss.
Electric bipolar snare is a kind of medical instrument more safe and reliable compared with electric monopole snare, passes through contact tissue
After connect electric knife, high-frequency current is formed between two wire electrodes and generates heat, acts on contacted tissue and be allowed to
Gasification is decomposed, to reach cutting purpose.It can make the tissue near wire electrode simultaneously due to the heat generated in contact tissue
Solidification, thus the function of blood coagulation can also be played.Due to being produced within the scope of the high-frequency current only 0-1.5cm between bipolar electric polar filament
It is raw, therefore more controllable high-efficiency.
Utility model content
To overcome defect present in existing electric monopole snare, the utility model provides a kind of endoscope-use electric bipolar circle
Device is covered, neutral pole plate is replaced by the circuit between two electrodes, it is small and more to reach, power loss small by electric current
The purpose of safety.
The technical scheme in the invention for solving the technical problem is as follows:
A kind of endoscope-use electric bipolar snare comprising have handle, sliding sleeve, fixing seat, double lumen tube sheath, two pull rods, two
Ring wire electrode and insulating ceramics head；The handle is handheld component, and the fixing seat is set on the handle, the sliding sleeve
It is connected on the handle and can be slided on the handle, which is equipped with interposer socket, and the double lumen tube sheath is fixed to be connected
It is connected to the front end of the handle, inside is equipped with two lumens of electrically insulated from one another, and the two pull rods electrically insulated from one another is placed through respectively
In two lumens of the double lumen tube sheath, one end of two pull rod passes through the fixing seat and is separately connected the built-in of the sliding sleeve and inserts
Seat, and be moved forward and backward by sliding sleeve drive, the other end is electrically connected the rear end of the two ring wire electrode, and described two
Ring wire electrode is the semicircular electrode of electrically insulated from one another, and front end carries out structure connection by the insulating ceramics head.
Further, the fixing seat is made of flexible insulating material.
Further, the double lumen tube sheath is high pressure resistant material, and insulation pressure resistance is 1500V.
Further, the insulation pressure resistance of the insulating ceramics head is 2000V.
Further, the pull rod is wirerope.
Further, the ring wire electrode is the wirerope that diameter is less than the pull rod.
It further, is interference fit between the fixing seat and the pull rod.
Further, the pull rod and the ring wire electrode pass through welded connecting.
For monopole snare, the advantageous effects of the utility model are as follows:
1, eliminate the neutral pole plate pasted with patient, directly reduce operation cost, also completely avoid because
Person bum accidents caused by neutral pole plate improper use.
2, the electric current that electric bipolar snare acts on human body can be much smaller, and electric knife power also very little significantly reduced
Press through the operation risk of heat.
3, the high-frequency current of the utility model acts only on the local organization of two interpolars, and high-frequency current does not need to pass through human body
The bodily tissue of other parts, therefore effectively reduce the electric injury that may cause to internal organs and its hetero-organization, also overcome because
There are implantation material or pacemaker with it for patient and the limitation that monopole is performed the operation can not be done.
4, the relatively thin place of the wall ratios such as enteron aisle do polypectomy and coagulation operation, the utility model due to power is small,
Electric current is small, to effectively prevent the risk of perforation, reduces operating difficulty.
The utility model has very high promotional value to Grass-roots Hospital early stage cancerous tissue or polyp enucleation, doctor
The basic control mirror technology of raw to master can carry out such operation, and not have to worry that (double pole mode can be common to equipment
On common electric knife) and the problem of operating technology.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged drawing of the utility model first half.
Fig. 3 is the Section A-A figure of Fig. 1.
In figure, 1-handle, 2-sliding sleeves, 3-fixing seats, 4-double lumen tube sheaths, 5-pull rods, 6-ring wire electrodes, 7-
Insulating ceramics head.
Specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but should not be limited with this
The protection scope of the utility model.
Fig. 1 and Fig. 2 are please referred to, diagram electric bipolar snare includes handle 1, sliding sleeve 2, fixing seat 3, double lumen tube sheath 4, two
Pull rod 5, two ring wire electrodes 6 and insulating ceramics head 7.
The handle 1 is handheld component, and intermediate region is equipped with slot, the track as the sliding sleeve 2.
Two lumens are equipped with inside the double lumen tube sheath 4, referring to Fig. 3, having partition, electrically insulated from one another among two lumen；
The double lumen tube sheath 4 uses the high pressure resistant material of Teflon, and insulation can bear the crest voltage of 1500V.The double lumen tube sheath 4 is inserted
Enter into the connecting hole on the handle 1, so that it is fixedly connected on the front end of the handle 1, the outer wall of the double lumen tube sheath 4 and institute
It states to be interference fitted between connecting hole, and is fixed by glue, so that the pull rod 5 be made to guarantee the two-chamber when being moved forward and backward
Pipe sheath 4 is fixed.
The sliding sleeve 2 is connected on the handle 1 and can slide on the handle 1, and sliding scale is only in the handle 1
Between slotted region；The sliding sleeve 2 is equipped with the interposer socket connecting with positive and negative electrode.
The fixing seat 3 is set on the handle 1, and the fixing seat 3 is using the flexible insulating with preferable insulation performance
Material is made.
Two pull rods, 5 electrically insulated from one another, is placed through in two lumens of the double lumen tube sheath 4 respectively, sees Fig. 3；Two drawing
One end of bar 5 passes through the fixing seat 3, and is electrically connected respectively with the interposer socket on the sliding sleeve 2, other end difference
It is electrically connected with the rear end of the two ring wire electrode 6.The sliding sleeve 2 slides on the handle 1, while driving two pull rod
5 are moved forward and backward.It is interference fit between the fixing seat 3 and the pull rod 5.
The two ring wire electrode 6 is the semicircular electrode of electrically insulated from one another, which carries out arc shaping
Its front end is inserted respectively into the insulating ceramics head 7 afterwards, which matches with the ring wire electrode 6 for interference
It closes, so that two ring wire electrodes 6 are carried out effective structure connection, but keeps the dielectric relationship of the two to prevent short circuit.It is described
Insulating ceramics head 7 using have preferable insulation performance material, insulation pressure resistance be 2000V.7 size of insulating ceramics head
It is smaller, thus when contacting tissue, 6 front end of ring wire electrode will not be caused to tilt because itself is too big, so that group
It is unclean to knit excision.
The pull rod 5 is wirerope, and the ring wire electrode 6 is also wirerope, and relatively described 5 diameter of pull rod is thinner, tool
There is good telescoping collapse performance.The rear end of the two ring wire electrode 6 is welded to connect with two pull rods 5 respectively, is led to after connection
It crosses the fixing seat 3 and adjusts two pull rods 5, so that the same length in both sides, to guarantee the ring wire electrode 6 to greatest extent
Contacted with the tissue that cuts off is needed, overturn without distorting, while can prevent two pull rods 5 in the handle 1
Between be in contact and lead to short circuit.Two pull rod 5 pulls the ring wire electrode 6 to pass in and out the double lumen tube by being moved forward and backward
The lumen of sheath.
The requires of the utility model pays special attention to the synchronism and electrical insulating property of two ring wire electrodes 6, because once two
Ring wire electrode 6 is asynchronous, not only will increase the operation difficulty of doctor, but also the tissue of the needs such as polyp excision is likely to
It cuts off unclean.The electrical safety performance of the electric bipolar snare has to comply with wanting for IEC60601-1 and IEC60601-2-2
It asks.
The working principle of the utility model is by the way that the two ring wire electrode 6 and tissue, concrete operations are connected
Process are as follows: when off working state, due to the presence of the insulating ceramics head 7, circuit is constantly in off state, even if at this time accidentally
Starting, there will not be power output；Once the ring wire electrode 6 entangles the tissue for needing to cut off, by described in operation
Handle 1 and the sliding sleeve 2 control the exposed length and ring size of the ring wire electrode 6, are allowed to completely attach to lesion tissue,
It starts switch at this time, two ring wire electrodes 6 can form a circuit, have power output at this time, then by pulling the cunning
Set 2 continues to tighten two ring wire electrodes 6, tissue is slowly cut off, and the heat that tissue generates when excision coagulates neighbouring tissue
Gu to achieve the purpose that cutting and hemostasis.When utility model works, high-frequency current, which acts on, stretches out the double lumen tube sheath 4
Tissue between two outer ring wire electrodes 6, without recycling high-frequency current by neutral pole plate, can reach cutting and
The purpose of blood coagulation, thus it is safer, it is highly efficient.
It above are only the preferred embodiment of the utility model, it must further be noted that, those skilled in the art Fan Yiben
Various equivalent modifications, variation and amendment made by utility model application content should all become the model of the requires of the utility model protection
It encloses.
In conclusion electric bipolar snare described in the utility model has good operating experience, while using again
Preferable structure and material, compared with existing electric monopole snare, the utility model was not only economical and practical, but also operation can be effectively reduced
Perforation risk, more advantageous and practicability.
Claims (8)
1. a kind of endoscope-use electric bipolar snare, it is characterised in that: the electric bipolar snare includes handle, sliding sleeve, consolidates
Reservation, double lumen tube sheath, two pull rods, two ring wire electrodes and insulating ceramics head；The handle is handheld component, and the fixing seat is set
It is placed on the handle, the sliding sleeve is connected on the handle and can slide on the handle, which is equipped with built-in
Socket, the double lumen tube sheath are fixedly connected on the front end of the handle, and inside is equipped with two lumens of electrically insulated from one another, and described two draw
Bar electrically insulated from one another is placed through respectively in two lumens of the double lumen tube sheath, and one end of two pull rod passes through the fixing seat and divides
The interposer socket of the sliding sleeve is not connected, and is moved forward and backward by sliding sleeve drive, and the other end is electrically connected described two
The rear end of ring wire electrode, the two ring wire electrode are the semicircular electrode of electrically insulated from one another, and front end passes through the insulation
Ceramic head carries out structure connection.
2. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the fixing seat is by soft exhausted
Edge material is made.
3. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the double lumen tube sheath is resistance to height
Material is pressed, insulation pressure resistance is 1500V.
4. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the insulating ceramics head it is exhausted
Edge pressure resistance is 2000V.
5. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the pull rod is wirerope.
6. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the ring wire electrode is straight
Diameter is less than the wirerope of the pull rod.
7. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the fixing seat and the drawing
It is interference fit between bar.
8. endoscope-use electric bipolar snare according to claim 1, it is characterised in that: the pull rod and the ring
Wire electrode passes through welded connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820762423.0U CN209074862U (en) | 2018-05-22 | 2018-05-22 | Endoscope-use electric bipolar snare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820762423.0U CN209074862U (en) | 2018-05-22 | 2018-05-22 | Endoscope-use electric bipolar snare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209074862U true CN209074862U (en) | 2019-07-09 |
Family
ID=67112642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820762423.0U Active CN209074862U (en) | 2018-05-22 | 2018-05-22 | Endoscope-use electric bipolar snare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209074862U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811817A (en) * | 2019-11-23 | 2020-02-21 | 南京市儿童医院 | Disposable endoscope lower anti-perforation ring sleeve core and snare |
| CN111772778A (en) * | 2020-07-28 | 2020-10-16 | 上海市东方医院（同济大学附属东方医院） | Multifunctional nipple sphincterotomy |
| CN112168333A (en) * | 2020-09-21 | 2021-01-05 | 扬州发特利医疗器械科技有限公司 | Bipolar electric snare |
-
2018
- 2018-05-22 CN CN201820762423.0U patent/CN209074862U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811817A (en) * | 2019-11-23 | 2020-02-21 | 南京市儿童医院 | Disposable endoscope lower anti-perforation ring sleeve core and snare |
| CN111772778A (en) * | 2020-07-28 | 2020-10-16 | 上海市东方医院（同济大学附属东方医院） | Multifunctional nipple sphincterotomy |
| CN112168333A (en) * | 2020-09-21 | 2021-01-05 | 扬州发特利医疗器械科技有限公司 | Bipolar electric snare |
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| GR01 | Patent grant |