CN110327509A - It is a kind of to prevent gravity flow valve based on transfusion system - Google Patents
It is a kind of to prevent gravity flow valve based on transfusion system Download PDFInfo
- Publication number
- CN110327509A CN110327509A CN201910705190.XA CN201910705190A CN110327509A CN 110327509 A CN110327509 A CN 110327509A CN 201910705190 A CN201910705190 A CN 201910705190A CN 110327509 A CN110327509 A CN 110327509A
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- China
- Prior art keywords
- valve
- gravity flow
- spool
- perfusion tube
- flow valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005484 gravity Effects 0.000 title claims abstract description 22
- 230000010412 perfusion Effects 0.000 claims abstract description 48
- 238000001802 infusion Methods 0.000 claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000747 cardiac effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000008280 blood Substances 0.000 abstract description 2
- 210000004369 blood Anatomy 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003814 drug Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000003288 anthiarrhythmic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses it is a kind of to prevent gravity flow valve based on transfusion system, be related to the field of medical instrument technology.System includes infusion pump and perfusion tube；It further include anti-gravity flow valve, it is arranged in perfusion tube any position, the anti-gravity flow valve provides an initial pressure, so that anti-gravity flow valve is in the normally off for blocking perfusion tube infusion, only when infusion pump works normally, initial pressure is overcome by the pressure that the infusion pump provides, so that anti-gravity flow valve is in the opening state for making perfusion tube be infused；Wherein, anti-gravity flow valve includes valve body and spool, and valve body includes body cavity, is set between perfusion tube, is connected to perfusion tube, and the spool is set to body cavity, and the valve body is supplied to spool initial pressure, so that perfusion tube is in normally off.The present invention can remove in use manual operation factor with automatic liquid-stopping, the problem of eliminating the possibility of operation error, effectively prevent infusion pump from flowing automatically, and one-way conduction, it effectively prevent blood back flow.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to it is a kind of to prevent gravity flow valve based on transfusion system.
Background technique
Infusion pump is usually control device mechanically or electrically, it reaches control transfusion speed by acting on transfusion catheter
Purpose.It is usually used in the case where needing strict control amount of infusion and dose, such as in application boosting drug, antiarrhymic medicine
When object, venous transfusion of infantile or Intravenous Anesthesia.
The output end of infusion pump is provided with only liquid device, effect is to prevent infusion pump fluid flow inside, is prevented defeated
May occur in liquid pipe from flow problem, guarantee infusion safety.Technology general at present is that liquid stopping clamp is arranged in output end, by curing
Shield personnel manual operation, clamps perfusion tube, prevents from flowing automatically.Its is troublesome in poeration, and automatic degree is low, once medical worker occurs accidentally to grasp
Make, will cause unpredictable consequence.
The Chinese invention " the automatic liquid-stopping method of infusion pump and infusion pump " of Publication No. CN108671320A provides one
The automatic liquid-stopping method of kind infusion pump and infusion pump.Infusion pump includes host and the pump door for being articulated with the host, is set on host
Be equipped with peristaltic pump, conduit positions detection device, loine pressure detection device, electronic liquid stopping clamp device, liquid stopping clamp detection device and
Control device, conduit positions detection device includes two position detectors being located at the both ends of perfusion tube, for examining
Whether install into host at the both ends for surveying perfusion tube；Peristaltic pump, loine pressure detection device, electronic liquid stopping clamp device and liquid stopping clamp
Detection device is located between two position detectors；Loine pressure detection device be located at peristaltic pump and electronic liquid stopping clamp it
Between.It controls electronic liquid stopping clamp device by control device and carries out only liquid automatically, avoids due to manual operation bring not in time
Gravity flow risk.It can be realized automatic liquid-stopping, easy to operate and safe, but device is complicated, higher cost.
The Chinese invention " transfusion system " of Publication No. CN101766851B provides a kind of transfusion system, the transfusion system
Including infusion pump and perfusion tube, the transfusion system further include: only liquid device should only liquid device be provided positioned at the downstream of infusion pump
One precompression, so that only liquid device is in the normally off for blocking perfusion tube infusion, it is defeated by this only when infusion pump works normally
The pressure that liquid pump provides overcomes precompression, so that only liquid device is in the opening state for making perfusion tube be infused.The only liquid dress
Setting includes: spool and valve seat, and the perfusion tube is between the spool and valve seat；One elastic element, the elastic element
The spool is acted on the precompression, so that the spool and valve seat, which are in, blocks the normal of the perfusion tube infusion
Closed state.Its precompression by stopping liquid device so that only liquid device be in block perfusion tube infusion normally off, only when
When infusion pump works normally, the pressure that the pump housing provides can just overcome precompression, and only liquid device is opened at this time, so that perfusion tube is defeated
Liquid, that is to say, that when infusion pump non-normal working, the pressure that the pump housing provides cannot overcome precompression, thus only liquid fills
It sets still in the normally off for blocking perfusion tube infusion.Therefore, medical fluid in the prior art can be overcome by stopping liquid device by this
Flow velocity problem out of control.But for its perfusion tube between spool and valve seat, occupied space is larger.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple structures, and occupied space is smaller, automatic liquid-stopping, prevent defeated
Liquid pump gravity flow it is a kind of to prevent gravity flow valve based on transfusion system.
To solve the above problems, the technical solution of the present invention is as follows: it is a kind of to prevent gravity flow valve based on transfusion system, including
Infusion pump and perfusion tube further include anti-gravity flow valve, and the anti-gravity flow valve provides an initial pressure, so that anti-gravity flow valve is in resistance
The normally off of disconnected perfusion tube infusion overcomes initial pressure by the pressure that the infusion pump provides only when infusion pump is worked normally,
So that anti-gravity flow valve is in the opening state for making perfusion tube be infused；
Wherein, the anti-gravity flow valve includes: valve body and spool, and the valve body includes body cavity, and the valve body fixation is set
It is placed between perfusion tube, the valve body upper surface is connected to perfusion tube, and the valve body lower end face is connected to perfusion tube, and liquid is in valve
Circulation, the spool are set to body cavity in vivo, and the valve body is supplied to spool initial pressure, so that perfusion tube is in normally closed
State.
Further, the valve body is cylindrical, and the body cavity is cylinder, and the spool is set as disk
Shape, the diameter of the spool are less than the diameter of the body cavity.
Further, the valve body is cylindrical, and the body cavity is cylinder, and the spool is set as disk
Shape, the diameter of the spool are equal to the diameter of the body cavity, and the body cavity side setting is fluted, and the groove is used
In when valve core axis are overlapped setting with valve axis, liquid is allowed to pass through.
Further, the groove cross section is trapezoidal, is circumferentially evenly arranged with along body cavity side multiple.
Further, the valve core axis are overlapped with the valve axis, body cavity liquid feeding end end face inlet
Surrounding first radially extends a boss along valve core axis direction again, formation and valve body between the boss and the spool
The intake chamber of inner cavity isolation, the boss and valve body are integrally formed, and the spool is made of silica gel material.
Further, the boss cross section is annular.
Further, body cavity outlet end end face liquid outlet and surrounding extend middle cardiac prominence along valve core axis direction
It rises and surrounding protrusion, the surrounding protrusion is set as multiple, is uniformly arranged along same circumference, the central protuberance bottom is set
Be equipped with cavity, body cavity is connected to through the cavity with perfusion tube, and the protrusion is supplied to spool initial pressure, by spool with it is convex
Platform forces together.
Further, the surrounding protrusion is cuboid.
Further, the one of longitudinal section of the central protuberance is triangle.
Further, it is respectively arranged with the connector being connected to body cavity at the center of the valve body upper and lower end face, it is described
Connector is cast.
Compared with prior art, the invention has the following beneficial effects:
1. the present invention can be removed in use manual operation factor, be eliminated the possibility of operation error with automatic liquid-stopping,
The problem of effectively preventing infusion pump from flowing automatically.
2. simple structure of the present invention, occupied space is smaller, at low cost, easily fabricated.
3. one-way conduction of the present invention, effectively prevent backflow of blood.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is anti-gravity flow valve and perfusion tube schematic diagram；
Fig. 2 is anti-gravity flow valve arrangement schematic diagram；
Fig. 3 is partial schematic diagram on valve body；
Fig. 4 is that valve body lower portion divides schematic diagram；
Fig. 5 is the schematic diagram of internal structure that anti-gravity flow valve is cut away a part.
Wherein, 1 is valve body；2 be spool；3 be perfusion tube；4 be connector；5 be groove；6 be boss；7 be intake chamber；8
Centered on protrusion；9 be surrounding protrusion.
Specific embodiment
In order to be easy to understand to technical means, creative features, achievable purpose and effectiveness of the invention, below with reference to tool
Body diagram, the present invention is further explained.
Embodiment 1:
It is as shown in Figs. 1-5 a kind of transfusion system to prevent based on gravity flow valve, including infusion pump and perfusion tube 3 also wrap
Anti- gravity flow valve is included, anti-gravity flow valve can be set in any position of perfusion tube.Anti- gravity flow valve provides an initial pressure, so that anti-
The valve that flows automatically is in the normally off for blocking perfusion tube infusion, only when infusion pump works normally, the pressure that is provided by the infusion pump
Initial pressure is overcome, so that anti-gravity flow valve is in the opening state for making perfusion tube be infused.Wherein, anti-gravity flow valve includes 1 He of valve body
Spool 2.Valve body 1 includes body cavity, and valve body 1 is set between perfusion tube 3, and the upper and lower end face of valve body 1 connects with perfusion tube 3 respectively
Logical, liquid can circulate in valve body 1.Spool 2 is set to 1 inner cavity of valve body, and valve body 1 is supplied to 2 one initial pressures of spool, makes
It obtains perfusion tube 3 and is in normally off.In use, the initial pressure of the offer of anti-gravity flow valve prevents liquid medicine self flowing, start infusion pump,
The pressure that infusion pump provides overcomes the pressure of anti-gravity flow valve, and medical fluid circulates in perfusion tube 3.
Embodiment 2:
As shown in Figure 2-5, valve body 1 is cylindrical, and body cavity is cylinder, and spool 2 is discoid.Spool 2 it is straight
Diameter is less than the diameter of body cavity.The axis of spool 2 is overlapped setting with the axis of valve body 1.Body cavity liquid feeding end end face into
First radially extend a boss 6 along 2 axis direction of spool again around liquid mouth, formation and valve body between boss 6 and spool 2
The intake chamber 7 of inner cavity isolation, boss 6 and valve body 1 are integrally formed, and spool 2 is made of silica gel material, have certain elasticity.
Further, 6 cross section of boss is annular, forms tubular intake chamber 7 with spool 2.Boss 6 is set as bent close to 2 end face of spool
Face, such boss 6 are contacted with the way of contact of spool 2 for line, are more advantageous to the conducting of liquid.In body cavity outlet end end face
Liquid outlet and surrounding extend central protuberance 8 and surrounding protrusion 9 along 2 axis direction of spool.Surrounding protrusion 9 is set as multiple, edge
Same circumference is uniformly arranged, and 9 bottom of central protuberance is provided with cavity, and body cavity is connected to through cavity with perfusion tube 3.Protrusion
It is supplied to 2 initial pressure of spool, spool 2 and boss 6 are forced together.Further, surrounding protrusion 9 is set as cuboid.
Further, the one of longitudinal section of central protuberance 8 is triangle.It is respectively arranged at 1 upper and lower end face center of valve body and valve
The cast connector 4 of intracoelomic cavity connection, gravity flow valve anti-so are just more easier to fix with perfusion tube 3.In use, infusion pump provides
Pressure compression spool 2 deform, spool 2 due to protrusion pressure, only contact with boss 6 place deformation, formation gap, medicine
Liquid reaches body cavity through perfusion tube 3, intake chamber 7, gap.When medical fluid is flow backwards, 2 oppression boss 6 of spool prevents medical fluid from falling
Stream.
Embodiment 3:
As shown in figure 3, the present embodiment place different from embodiment 2 is that the diameter of the spool 2 in the present embodiment is equal to
The diameter of body cavity, such medical fluid are just obstructed by spool 2, can not be connected.So needing that groove is arranged in body cavity side
5, allow medical fluid to flow to body cavity through groove 5.Further, 5 cross section of groove is set as trapezoidal, along body cavity side circumferential direction
It is evenly arranged with multiple.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, essence of the invention is not being departed from
Under the premise of mind and range, various changes and improvements may be made to the invention, these changes and improvements both fall within claimed
In invention scope.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (10)
1. a kind of transfusion system to prevent based on gravity flow valve, including infusion pump and perfusion tube, it is characterised in that: further include it is anti-from
Valve is flowed, the anti-gravity flow valve provides an initial pressure, so that anti-gravity flow valve is in the normally off for blocking perfusion tube infusion, only
When infusion pump works normally, initial pressure is overcome by the pressure that the infusion pump provides, so that anti-gravity flow valve, which is in, makes perfusion tube
The opening state of infusion；
Wherein, the anti-gravity flow valve includes: valve body and spool, and the valve body includes body cavity, and the valve body is fixedly installed on
Between perfusion tube, the valve body upper surface is connected to perfusion tube, and the valve body lower end face is connected to perfusion tube, and liquid is in valve body
Circulation, the spool are set to body cavity, and the valve body is supplied to spool initial pressure, so that perfusion tube is in normally closed shape
State.
2. a kind of transfusion system to prevent based on gravity flow valve according to claim 1, it is characterised in that: the valve body is
Cylindrical, the body cavity be it is cylindrical, the spool be it is discoid, the diameter of the spool is less than in the valve body
The diameter of chamber.
3. a kind of transfusion system to prevent based on gravity flow valve according to claim 1, it is characterised in that: the valve body is
Cylindrical, the body cavity are cylinder, the spool be it is discoid, the diameter of the spool is equal to the body cavity
Diameter, the body cavity side along body cavity axis direction be arranged it is fluted, the groove be used for valve core axis with
When valve axis is overlapped setting, liquid is allowed to pass through.
4. a kind of transfusion system to prevent based on gravity flow valve according to claim 3, it is characterised in that: the groove is horizontal
Section be it is trapezoidal, be circumferentially evenly arranged with along body cavity side multiple.
5. it is according to claim 2 or 3 it is a kind of to prevent gravity flow valve based on transfusion system, it is characterised in that: the valve
Wire mandrel is overlapped with the valve axis, first radially again along spool around the inlet of body cavity liquid feeding end end face
Axis direction extends a boss, and the intake chamber with body cavity isolation is formed between the boss and the spool, described
Boss and valve body are integrally formed, and the spool is made of silica gel material.
6. a kind of transfusion system to prevent based on gravity flow valve according to claim 5, it is characterised in that: the boss is horizontal
Section is annular.
7. it is according to claim 5 it is a kind of to prevent gravity flow valve based on transfusion system, it is characterised in that: in the valve body
Chamber outlet end end face liquid outlet and surrounding extend central protuberance and surrounding protrusion along valve core axis direction, and the surrounding protrusion is set
It is set to multiple, is uniformly arranged along same circumference, the central protuberance bottom is provided with cavity, and body cavity is through the cavity
It is connected to perfusion tube, the protrusion is supplied to spool initial pressure, and spool and boss are forced together.
8. it is according to claim 7 it is a kind of to prevent gravity flow valve based on transfusion system, it is characterised in that: it is described around it is convex
Rising is cuboid.
9. it is according to claim 7 it is a kind of to prevent gravity flow valve based on transfusion system, it is characterised in that: the middle cardiac prominence
Playing one of longitudinal section is triangle.
10. it is according to claim 7 it is a kind of to prevent gravity flow valve based on transfusion system, it is characterised in that: the valve body
The connector being connected to body cavity is respectively arranged at the center of upper and lower end face, the connector is cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705190.XA CN110327509A (en) | 2019-08-01 | 2019-08-01 | It is a kind of to prevent gravity flow valve based on transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705190.XA CN110327509A (en) | 2019-08-01 | 2019-08-01 | It is a kind of to prevent gravity flow valve based on transfusion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110327509A true CN110327509A (en) | 2019-10-15 |
Family
ID=68148371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705190.XA Pending CN110327509A (en) | 2019-08-01 | 2019-08-01 | It is a kind of to prevent gravity flow valve based on transfusion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110327509A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675382A (en) * | 2020-12-11 | 2021-04-20 | 江苏爱朋医疗科技股份有限公司 | Infusion device |
| WO2021128688A1 (en) * | 2019-12-27 | 2021-07-01 | 南微医学科技股份有限公司 | Pressure pump and control system therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3152149B2 (en) * | 1996-05-23 | 2001-04-03 | 株式会社ニッショー | Flow control device with priming mechanism |
| CN101766851A (en) * | 2009-12-31 | 2010-07-07 | 北京鑫禾丰医疗技术有限公司 | Infusion system |
| CN103536983A (en) * | 2013-09-26 | 2014-01-29 | 王行环 | H-matic pressure control infusion pump |
| CN106880887A (en) * | 2017-03-29 | 2017-06-23 | 江苏人先医疗科技有限公司 | Preventing gravity fluid infusion structure and its application method |
| CN208641441U (en) * | 2017-11-20 | 2019-03-26 | 北京来普惠康医学技术有限公司 | A kind of syringe pump survey pressure and anti-self-flow device |
-
2019
- 2019-08-01 CN CN201910705190.XA patent/CN110327509A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3152149B2 (en) * | 1996-05-23 | 2001-04-03 | 株式会社ニッショー | Flow control device with priming mechanism |
| CN101766851A (en) * | 2009-12-31 | 2010-07-07 | 北京鑫禾丰医疗技术有限公司 | Infusion system |
| CN103536983A (en) * | 2013-09-26 | 2014-01-29 | 王行环 | H-matic pressure control infusion pump |
| CN106880887A (en) * | 2017-03-29 | 2017-06-23 | 江苏人先医疗科技有限公司 | Preventing gravity fluid infusion structure and its application method |
| CN208641441U (en) * | 2017-11-20 | 2019-03-26 | 北京来普惠康医学技术有限公司 | A kind of syringe pump survey pressure and anti-self-flow device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128688A1 (en) * | 2019-12-27 | 2021-07-01 | 南微医学科技股份有限公司 | Pressure pump and control system therefor |
| CN112675382A (en) * | 2020-12-11 | 2021-04-20 | 江苏爱朋医疗科技股份有限公司 | Infusion device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20191015 |