CN107441582B - Automatic liquid stopping filtering dropping funnel, system and working method thereof - Google Patents
Automatic liquid stopping filtering dropping funnel, system and working method thereof Download PDFInfo
- Publication number
- CN107441582B CN107441582B CN201710677162.2A CN201710677162A CN107441582B CN 107441582 B CN107441582 B CN 107441582B CN 201710677162 A CN201710677162 A CN 201710677162A CN 107441582 B CN107441582 B CN 107441582B
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- liquid
- stopping
- automatic liquid
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- air
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- 239000007788 liquid Substances 0.000 title claims abstract description 169
- 238000001914 filtration Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000009423 ventilation Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 239000003814 drug Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001802 infusion Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010001526 Air embolism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method 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
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
- A61M5/38—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 with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7527—General characteristics of the apparatus with filters liquophilic, hydrophilic
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)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- External Artificial Organs (AREA)
Abstract
The invention relates to the technical field of dropping hoppers, and discloses an automatic liquid stopping and filtering dropping hopper, which comprises: the dropping funnel body comprises a cavity, a puncture outfit, an air inlet channel and a liquid inlet channel, wherein the air inlet channel and the liquid inlet channel are communicated with the cavity, the lower end of the cavity is provided with an air outlet and an automatic liquid stopping filter device, the automatic liquid stopping filter device is arranged inside the cavity, the upper end and the lower end of the automatic liquid stopping filter device are respectively provided with an air outlet and a liquid outlet, the upper end of the air outlet is covered with a liquid stopping ventilation film, the air outlet is connected with the air outlet, and the liquid outlet penetrates out of the cavity. The invention also discloses an automatic liquid stopping filter system and a working method thereof, wherein the automatic liquid stopping filter dropping funnel comprises the automatic liquid stopping filter dropping funnel, and the automatic liquid stopping function is realized due to the action of a liquid seal when the liquid in the body is completely circulated by utilizing the characteristic that the liquid is not ventilated by the air blocking filter membrane; meanwhile, the gas-barrier filter membrane has a filter function; the drip chamber body and the automatic liquid stopping and filtering device adopt modularized designs, and have simple structure.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to an automatic liquid stopping filtering drip chamber, a system and a working method thereof.
Background
At present, a disposable infusion set is generally adopted in clinical intravenous infusion in the medical field, and the infusion set has the following problems in the use process: after transfusion is finished, because of no automatic liquid stopping function, medical staff is required to replace a transfusion bottle or pull out a transfusion needle in time, otherwise air can enter a patient to cause air embolism or other unsafe factors such as blood return, and the air can directly increase the working strength and heavy mental burden of the medical staff, and meanwhile, serious consequences can be caused when the medical staff faces emergency transfusion and rescuing patients with critical diseases.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide an automatic liquid stopping filter dropping funnel, an automatic liquid stopping filter dropping funnel system and a working method thereof, and solves the defects that a disposable infusion set in the prior art does not have the functions of automatic liquid stopping, automatic air exhausting, automatic liquid level height control and blood return prevention.
(II) technical scheme
In order to solve the technical problem, the invention provides an automatic liquid stopping filter dropping funnel, which is characterized by comprising the following components: the dropping funnel body comprises a cavity, a puncture outfit, an air inlet channel and an air inlet channel, wherein a liquid outlet hole and the air inlet channel at the lower end of the air inlet channel are communicated with the cavity, an air outlet and an automatic liquid stopping filter device are arranged at the lower end of the cavity, the automatic liquid stopping filter device is arranged inside the cavity, an air blocking filter membrane is further arranged on the automatic liquid stopping filter device, an air exhaust hole and a liquid outlet are respectively arranged at the upper end and the lower end of the automatic liquid stopping filter device, an air exhaust hole upper end covers the liquid stopping ventilation membrane, the air exhaust hole is connected with the air outlet, and the liquid outlet penetrates out of the cavity and is used for discharging liquid.
The automatic liquid stopping filter device is in the shape of one or more of a cylinder, a cone, a cuboid and the like.
The automatic liquid stopping device is characterized in that the middle part of the automatic liquid stopping device is hollowed, and the air blocking filter membrane is wrapped on the hollowed part.
Wherein, the air inlet channel is also provided with a protective cap and an empty membrane.
The invention also discloses an automatic liquid stopping and filtering system which comprises a liquid medicine bottle, a regulator and the automatic liquid stopping and filtering drip chamber, wherein a puncture outfit of the automatic liquid stopping and filtering drip chamber is inserted into the liquid medicine bottle, and the regulator is arranged on a guide pipe communicated with a liquid outlet of the automatic liquid stopping and filtering drip chamber.
The invention also discloses a working method of the automatic liquid stopping filtering system, which comprises the following steps: when the flow rate of the liquid outlet hole is larger than that of the liquid outlet hole, liquid enters the dropping funnel from the liquid outlet hole; air in the dropping funnel is discharged through the liquid stopping ventilation film, the exhaust hole and the exhaust port, and the liquid level in the dropping funnel rises; meanwhile, air in the automatic liquid-stopping filter device is discharged from the liquid outlet, and liquid can be discharged from the liquid outlet after the air in the automatic liquid-stopping filter device is discharged completely, so that the air in the automatic liquid-stopping filter device can be completely discharged;
when the liquid level is higher than the liquid stop ventilation film, the gas in the dropping funnel cannot be discharged from the exhaust hole, and the gas pressure in the dropping funnel is higher than the external atmospheric pressure, so that the liquid in the liquid outlet hole cannot flow out, and the liquid level in the dropping funnel is kept unchanged;
when the liquid level is lower than the liquid stop ventilation film, the pressure of the gas in the dropping funnel is lower than the external atmospheric pressure, so that the liquid is discharged from the liquid outlet;
when the liquid in the dropping funnel body is emptied, the gas in the dropping funnel body cannot enter the automatic liquid stopping filter device due to the gas blocking effect of the gas blocking filter membrane, so that the liquid of the dropping funnel body is kept in the automatic liquid stopping filter device.
(III) beneficial effects
According to the automatic liquid stopping filter dropping funnel provided by the invention, by utilizing the characteristics of liquid stopping and filtering devices and gas blocking and filtering membrane liquid passing and non-ventilation, when liquid flows out, air in a cavity cannot enter a liquid passing area in the automatic liquid stopping and filtering device to pass through due to the action of a liquid seal, so that the function of automatic liquid stopping and filtering is realized; the drip chamber body and the automatic liquid stopping and filtering device adopt modularized designs, and have simple structure.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of an automatic liquid-stopping filter drip chamber according to the present invention;
FIG. 2 is a left side view of the automatic liquid stop filter device of the present invention;
FIG. 3 is a front view of the automatic liquid stop filter device of the present invention;
FIG. 4 is a single function drip chamber of the application of the present invention;
FIG. 5 is a single function filter of the application of the present invention;
FIG. 6 is a schematic illustration of the invention in use in an infusion set;
in the figure, a cavity (1); an intake passage (2); a liquid inlet channel (3); a hollow membrane (4); a liquid outlet hole (5); a protective cap (6); an air inlet (7); a liquid-stopping ventilation membrane (8); an exhaust hole (9); an automatic liquid stopping device (10); a gas-barrier filtration membrane (11); an exhaust port (12); a liquid outlet (13); a liquid medicine bottle (A); an automatic liquid stopping bucket (B); a regulator (C).
Detailed Description
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, 2 and 3, the present invention discloses an automatic liquid stopping filter drip chamber, comprising: the dropping funnel comprises a cavity 1, a puncture outfit, an air inlet 7, an air inlet channel 2 and a liquid inlet channel 3, a liquid outlet hole 5 and the liquid inlet channel 3 at the lower end of the air inlet channel 2 are communicated with the cavity 1, an air outlet 12 and an automatic liquid stopping filter 10 are arranged at the lower end of the cavity 1, the automatic liquid stopping filter 10 is arranged inside the cavity 1, a gas blocking filter membrane 11 is further arranged at the automatic liquid stopping filter 10, an air outlet 9 and an air outlet 13 are respectively arranged at the upper end and the lower end of the automatic liquid stopping filter 10, a liquid stopping ventilation membrane 8 is covered at the upper end of the air outlet 9, the air outlet 9 is connected with the air outlet 12, and the liquid outlet 13 penetrates out of the cavity 1 for discharging liquid. Specifically, a puncture outfit (not shown) is used to penetrate the liquid medicine bottle.
Wherein, the shape of the automatic liquid stopping filter device 10 is one or more combinations of a cylinder, a cone, a cuboid and the like. As shown in fig. 2 and 3, the automatic liquid stop filter device 10 is preferably cylindrical.
Wherein, the automatic liquid-stopping filter device 10 is a hollow part, and the air-blocking filter membrane 11 is wrapped on the hollow part. The liquid medicine passes through the gas-blocking filter membrane 11 from the middle hollowed part, and the gas passes through the liquid-blocking ventilation membrane 8 at the upper end of the automatic liquid-blocking filter device 10, so that the self-exhausting function is realized.
The air inlet channel 2 is further provided with a protective cap 6 and an empty membrane 4, and is used for communicating the dropping funnel with the outside air and controlling the air pressure in the dropping funnel to be the same as the outside air.
As shown in fig. 4 and 5, is a single function drip chamber and a single function filter.
As shown in fig. 6, the invention also discloses an automatic liquid stopping and filtering system, which comprises an automatic liquid stopping and filtering dropping funnel, a liquid medicine bottle a, an automatic liquid stopping and filtering dropping funnel B and a regulator C.
The invention also discloses a working method of the automatic liquid stopping and filtering system, which comprises the following steps: the puncture outfit is inserted into the liquid medicine bottle, the protective cap is opened, and the external air enters the cavity through the air inlet channel; the liquid medicine enters the dropping funnel through the liquid inlet channel and the liquid outlet hole under the action of the atmospheric pressure; air in the dropping funnel is discharged through the liquid stopping ventilation film, the exhaust hole and the exhaust port, and the liquid level in the dropping funnel rises;
when the liquid level is higher than the liquid stop ventilation film, the gas in the dropping funnel cannot be discharged, and the gas pressure is the same as the external atmospheric pressure, so that the liquid level in the dropping funnel is kept unchanged, and the function of controlling the liquid level is realized;
opening the liquid in the regulator drip chamber to be discharged from the liquid outlet through the air-blocking filter membrane and the hollow part of the automatic liquid-stopping filter device under the action of gravity, wherein the air in the liquid can not be discharged together with the liquid due to the air-blocking function of the air-blocking filter membrane to form air-liquid separation, the air is discharged through the liquid-stopping ventilation membrane, the liquid is discharged through the air-blocking filter membrane, no bubbles are generated in the liquid, medical staff does not need to squeeze the drip chamber first, and then the air bubbles are discharged in a time-consuming and laborious manner, so that the safety of patients is ensured, and the working intensity of the medical staff is lightened to realize the self-exhausting function;
after the liquid in the dropping funnel body is emptied, the gas in the gas-blocking filtering membrane body cannot enter the automatic liquid-stopping filtering device, so that the liquid of the automatic liquid-stopping filtering device is reserved in the automatic liquid-stopping device, and the liquid-stopping effect is achieved. The venous pressure of the human body is 600-900 mm water column, and when the height of the dropping funnel body is higher than 600-900 mm water column, the blood can not flow back to play a role of blood return prevention when the venous pressure of the human body is equal to the venous pressure of the human body.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (4)
1. An automatic liquid-stopping filtering drip chamber, comprising: the drip chamber comprises a drip chamber body and an automatic liquid stopping filter device, wherein the drip chamber body comprises a cavity (1), a puncture outfit, an air inlet (7), an air inlet channel (2) and a liquid inlet channel (3), a liquid outlet hole (5) and the liquid inlet channel (3) at the lower end of the air inlet channel (2) are communicated with the cavity (1), an air outlet (12) and the automatic liquid stopping filter device (10) are arranged at the lower end of the cavity (1), the automatic liquid stopping filter device (10) is arranged in the cavity (1), the automatic liquid stopping filter device (10) is further provided with an air blocking filter membrane (11), an air outlet (12) and a liquid outlet (13) are respectively arranged at the upper end and the lower end of the automatic liquid stopping filter device (10), the upper end of the air outlet (9) is covered with a liquid stopping ventilation membrane (8), the air outlet (9) is connected with the air outlet (12), and the liquid outlet (13) penetrates out of the cavity (1) for discharging liquid;
the automatic liquid stopping filter device (10) is characterized in that the middle part of the automatic liquid stopping filter device is hollowed, and the air blocking filter membrane (11) is wrapped on the hollowed part;
when the flow of the liquid outlet hole (5) is larger than that of the liquid outlet hole (13), liquid enters the dropping funnel body from the liquid outlet hole (5); the air in the dropping funnel body is discharged through the liquid stopping ventilation membrane (8), the exhaust hole (9) and the exhaust port (12), and the liquid level in the dropping funnel body rises; meanwhile, air in the automatic liquid-stopping filter device (10) is discharged from the liquid outlet (13), and after the air in the automatic liquid-stopping filter device (10) is discharged, liquid can be discharged from the liquid outlet (13), so that the air in the automatic liquid-stopping filter device (10) can be thoroughly discharged;
when the liquid level is higher than the liquid stop ventilation membrane (8), the gas in the dropping funnel body cannot be discharged from the exhaust hole (9), and at the moment, the gas pressure in the dropping funnel body is higher than the external atmospheric pressure, so that the liquid in the liquid outlet hole (5) cannot flow out, and the liquid level in the dropping funnel body is kept unchanged;
when the liquid is discharged from the liquid outlet (13), and when the liquid level is lower than the liquid stop ventilation film (8), the gas pressure in the dropping funnel body is lower than the external atmospheric pressure, so that the liquid is discharged from the liquid outlet (13);
after the liquid in the dropping funnel body is emptied, the gas in the dropping funnel body cannot enter the automatic liquid stopping filter device (10) due to the gas blocking effect of the gas blocking filter membrane (11), so that the liquid of the dropping funnel body is reserved in the automatic liquid stopping filter device (10).
2. The automatic liquid-stopping filter drip chamber of claim 1, characterized in that the automatic liquid-stopping filter device (10) is shaped as a combination of one or more geometric forms of a cylinder, a cone and a cuboid.
3. An automatic liquid-stopping filter drip chamber according to claim 1, characterized in that the air inlet channel (2) is further provided with a protective cap (6) and a hollow membrane (4).
4. An automatic liquid stopping and filtering system is characterized by comprising a liquid medicine bottle (A), a regulator (C) and the automatic liquid stopping and filtering drip chamber (B) according to any one of claims 1-3, wherein a puncture outfit of the automatic liquid stopping and filtering drip chamber (B) is inserted into the liquid medicine bottle (A), and the regulator (C) is arranged on a conduit communicated with a liquid outlet (13) of the automatic liquid stopping and filtering drip chamber (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677162.2A CN107441582B (en) | 2017-08-09 | 2017-08-09 | Automatic liquid stopping filtering dropping funnel, system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677162.2A CN107441582B (en) | 2017-08-09 | 2017-08-09 | Automatic liquid stopping filtering dropping funnel, system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107441582A CN107441582A (en) | 2017-12-08 |
| CN107441582B true CN107441582B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710677162.2A Active CN107441582B (en) | 2017-08-09 | 2017-08-09 | Automatic liquid stopping filtering dropping funnel, system and working method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107441582B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000066200A1 (en) * | 1999-05-03 | 2000-11-09 | Becton Dickinson Medizintechnik Gmbh & Co. Kg | Infusion apparatus |
| CN203169747U (en) * | 2012-12-21 | 2013-09-04 | 江西三鑫医疗科技股份有限公司 | Automatic air exhausting and liquid stopping infusion set |
| CN103301524A (en) * | 2013-06-14 | 2013-09-18 | 山东新华安得医疗用品有限公司 | Disposable infusion apparatus capable of stopping liquid and exhausting air automatically |
| CN103495224A (en) * | 2013-09-26 | 2014-01-08 | 淮安市恒春医疗器材有限公司 | Liquid-stopping tank-type automatic exhaust liquid-stopping infusion apparatus |
| CN104474603A (en) * | 2014-12-26 | 2015-04-01 | 北京伏尔特技术有限公司 | Self-exhausting, liquid-stopping and liquid-purifying infusion apparatus and safe infusion method thereof |
| CN206045083U (en) * | 2016-07-19 | 2017-03-29 | 北京凯利尔医疗科技有限公司 | A kind of transfusion device |
| CN208552692U (en) * | 2017-08-09 | 2019-03-01 | 北京凯利尔医疗科技有限公司 | A kind of automatic liquid-stopping filtering dropping funnel and its system |
-
2017
- 2017-08-09 CN CN201710677162.2A patent/CN107441582B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000066200A1 (en) * | 1999-05-03 | 2000-11-09 | Becton Dickinson Medizintechnik Gmbh & Co. Kg | Infusion apparatus |
| CN203169747U (en) * | 2012-12-21 | 2013-09-04 | 江西三鑫医疗科技股份有限公司 | Automatic air exhausting and liquid stopping infusion set |
| CN103301524A (en) * | 2013-06-14 | 2013-09-18 | 山东新华安得医疗用品有限公司 | Disposable infusion apparatus capable of stopping liquid and exhausting air automatically |
| CN103495224A (en) * | 2013-09-26 | 2014-01-08 | 淮安市恒春医疗器材有限公司 | Liquid-stopping tank-type automatic exhaust liquid-stopping infusion apparatus |
| CN104474603A (en) * | 2014-12-26 | 2015-04-01 | 北京伏尔特技术有限公司 | Self-exhausting, liquid-stopping and liquid-purifying infusion apparatus and safe infusion method thereof |
| CN206045083U (en) * | 2016-07-19 | 2017-03-29 | 北京凯利尔医疗科技有限公司 | A kind of transfusion device |
| CN208552692U (en) * | 2017-08-09 | 2019-03-01 | 北京凯利尔医疗科技有限公司 | A kind of automatic liquid-stopping filtering dropping funnel and its system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107441582A (en) | 2017-12-08 |
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