CN201969108U - Automatic blood backflow prevention infusion apparatus - Google Patents
Automatic blood backflow prevention infusion apparatus Download PDFInfo
- Publication number
- CN201969108U CN201969108U CN2011200228397U CN201120022839U CN201969108U CN 201969108 U CN201969108 U CN 201969108U CN 2011200228397 U CN2011200228397 U CN 2011200228397U CN 201120022839 U CN201120022839 U CN 201120022839U CN 201969108 U CN201969108 U CN 201969108U
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- filter
- liquid
- liquid medicine
- dropping funnel
- filter membrane
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an automatic blood backflow prevention infusion apparatus which is characterized in that an exhaust window is arranged in a dropping funnel; an exhaust hole is formed on a dropping funnel cover; a liquid medicine filter is arranged below the exhaust window; a filter membrane is made of a plurality of layers of hydrophilic fiber membranes; a reveal point is arranged at the periphery of the filter membrane, so that the filter membrane can be exposed outside the liquid medicine filter; and a drain groove communicated with the reveal point of the filter membrane is arranged on the peripheral wall of the base of the liquid medicine filter. The exhaust window plays a role of exhausting automatically; a multilayer filter achieves the effect of stopping liquid automatically; and the drain groove can lead residue liquid to the filter membrane to produce micro infusion, so that the effect of preventing blood backflow can be achieved.
Description
Technical field
This utility model relates to the category of medical apparatus and instruments, is a kind of automatic blood return preventing infusion device.
Technical background
Existing transfusion device aerofluxus difficulty, medicinal liquid flows air admission downcomer, blood backflow, and to enter downcomer etc. all be unsolved for a long time problem.
In order to address these problems, existing in recent years automatic vent, end the patent and the product of liquid transfusion device automatically.Chinese patent ends the liquid fine straining automatically and crosses filter infusion apparatus (number of patent application 200920351185.5) proposition at exhausting window of dropping funnel lid mounted device, liquid enters exhaustor after the aerofluxus for the first time of this structure, can not carry out the aerofluxus second time, automatically downcomer seals after ending liquid, human body De Static pulse pressure produces blood back and forms thrombosis greater than the pressure in the conduit.Therefore, existing patent and product are failed to accomplish continuous automatic vent, are ended the effect that liquid has blood return prevention again automatically.
Summary of the invention
The purpose of this utility model is to provide a kind of automatic blood return preventing infusion device, and it has continuous automatic vent, ends the function of liquid and blood return prevention automatically.
The purpose of this utility model is achieved in that exhausting window is arranged in the dropping funnel, the exhaust gas filter film is made with vegetables water material, the not saturating Shui of ventilation, and steam vent covers at dropping funnel, liquid can not enter in the exhaustor between exhausting window and the steam vent, so this exhausting window continuous exhaust pneumatic wallop repeatedly.A liquid medicine filter is arranged below exhausting window, and liquid medicine filtering membrane adopts multilamellar hydrophilic filter film, can ventilate when dry, can seep water owing to the surface tension effects of liquid after moist but stops gas to pass through.When flow of liquid is intact, just can end liquid automatically.The periphery of filter membrane has a dew point that filter membrane is exposed to outside the liquid medicine filter, and the periphery wall of liquid medicine filter base has a drainage trough to communicate with the filter membrane of dew point.The connecting tube of base communicates with downcomer, and liquid medicine filtering membrane is from the minimum 5mm of the outlet of dropping funnel.Remain with debris at the bottom of the dropping funnel when messenger drug liquid stream is intact.The action of gravity of liquid during operation, medicinal liquid flows into dropping funnel, and gas unnecessary in the dropping funnel is discharged from influencing meridian exhausting window, exhaustor and steam vent.When liquid level reached exhausting window, liquid can not see through the air filtration film of vegetables water and exhausting window is sealed, and liquid level can not continue to raise, and medicinal liquid flows in the liquid medicine filter, flows into downcomer and transfusion needle behind the medical filtration membrane filtration, can infuse.After the medicinal liquid above the liquid medicine filter had flowed, because liquid medicine filtering membrane is the hydrophilic fibrous membrane of multilamellar, the liquid porous was gone over, and moist back gas can not end liquid automatically by reaching, and prevents the air admission downcomer.At this moment, extremely slow because the surface tension effects drainage trough of liquid upwards drains into the filter membrane of dew point with the debris in the dropping funnel because of the speed of drain, form the trace transfusion, keep pressure in the transfusion device greater than the venous pressure of human body, reach the blood back effect that prevents.If will continue to infuse the time because liquid can not enter in the exhausting window, aerofluxus for the second time and for the first time exhaust phase with, unnecessary gas is discharged from the influencing meridian exhausting window in the dropping funnel.So automatic exhausting anti-blood backflow infusion apparatus energy continuous several times automatic vent ends liquid and blood return prevention automatically.
This utility model only needs exhausting window is arranged in the dropping funnel, liquid medicine filter is below exhausting window, liquid medicine filtering membrane is the rarest two-layer, the filter membrane periphery has a dew point to be exposed to outside the filter, the base periphery wall of filter has a drainage trough, this groove communicates with the filter membrane of dew point, and these structures and technology are all uncomplicated, implements easily.
Description of drawings
Concrete structure of the present utility model is drawn by following embodiment and accompanying drawing.
Fig. 1 is the profile according to the automatic blood return preventing infusion device that the utility model proposes.
The specific embodiment
Describe details and working condition in detail below in conjunction with Fig. 1 according to the concrete device that the utility model proposes.
Automatically blood return preventing infusion device comprises a main body dropping funnel (2), an exhausting window (1) is arranged in the main body, be a liquid medicine filter (5) below the exhausting window, the periphery of liquid medicine filtering membrane (6) has a dew point (7), and the periphery wall of base (8) has a drainage trough (9).
To scheme is example, and medicinal liquid enters dropping funnel (2) through needle for inserting bottle (12) during operation, and gas unnecessary in the dropping funnel is discharged through the steam vent (3) that exhausting window (1), exhaustor (4) and dropping funnel cover.The filter membrane (6) of medicinal liquid through liquid medicine filter (5) filters after the connecting tube (10) of the base of liquid medicine filter (8) flows into downcomer (11) and transfusion needle (13) behind liquid level sealing exhausting window.When medicinal liquid has flowed, the multiple filtration film can not see through gas, produces to end the liquid effect automatically.At this moment, the drainage trough of base periphery wall (9) debris that dropping funnel (2) is interior drains into the dew point (7) of filter membrane (6), because the speed of drain is very slow.Keep the trace transfusion, reaching the blood return prevention effect.If continue transfusion, medicinal liquid flows into dropping funnel automatic vent again through needle for inserting bottle, ends liquid and blood return prevention automatically.Therefore blood return preventing infusion device can reach automatic vent in use repeatedly automatically, ends liquid and blood return prevention effect automatically.
Claims (3)
1. automatic blood return preventing infusion device of forming by dropping funnel, liquid medicine filter, exhausting window and conduit, it is characterized in that exhausting window (1) is in dropping funnel (2), its steam vent (3) covers at dropping funnel, there is a liquid medicine filter (5) below of exhausting window, the periphery of liquid medicine filter film (6) has a dew (7), dew point communicates with the drainage trough (9) of liquid medicine filter base (8) periphery wall, and the connecting tube of base (10) communicates with downcomer (11).
2. automatic blood return preventing infusion device according to claim 1, the air filtration film (12) that it is characterized in that exhausting window (1) are the gas-pervious filter membranes of a kind of vegetables water.
3. it is minimum for two-layer that automatic blood return preventing infusion device according to claim 1, the filtration that it is characterized in that liquid medicine filter (5) are touched (6), and filter membrane is from the minimum 5mm of outlet of dropping funnel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200228397U CN201969108U (en) | 2011-01-16 | 2011-01-16 | Automatic blood backflow prevention infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200228397U CN201969108U (en) | 2011-01-16 | 2011-01-16 | Automatic blood backflow prevention infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201969108U true CN201969108U (en) | 2011-09-14 |
Family
ID=44574218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200228397U Expired - Fee Related CN201969108U (en) | 2011-01-16 | 2011-01-16 | Automatic blood backflow prevention infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201969108U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389603A (en) * | 2011-11-20 | 2012-03-28 | 戎静华 | Automatic air discharging system of infusion device capable of preventing blood return |
| CN102580175A (en) * | 2011-01-16 | 2012-07-18 | 谢世庚 | Automatic blood-return preventive infusion set |
| CN102688533A (en) * | 2012-06-26 | 2012-09-26 | 广东康尔美医疗器械有限公司 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| CN104888298A (en) * | 2015-03-24 | 2015-09-09 | 广州友安医疗科技有限公司 | Blood return prevention device and medical infusion apparatus |
| CN104958809A (en) * | 2015-06-01 | 2015-10-07 | 戎静华 | Anti-coagulation liquid checking infusion device |
-
2011
- 2011-01-16 CN CN2011200228397U patent/CN201969108U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580175A (en) * | 2011-01-16 | 2012-07-18 | 谢世庚 | Automatic blood-return preventive infusion set |
| CN102389603A (en) * | 2011-11-20 | 2012-03-28 | 戎静华 | Automatic air discharging system of infusion device capable of preventing blood return |
| CN102389603B (en) * | 2011-11-20 | 2013-07-17 | 戎静华 | Automatic air discharging system of infusion device capable of preventing blood return |
| CN102688533A (en) * | 2012-06-26 | 2012-09-26 | 广东康尔美医疗器械有限公司 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| WO2014000494A1 (en) * | 2012-06-26 | 2014-01-03 | 电白县康尔美生物科技有限公司 | Self-stopping type precision filter infusion apparatus capable of preventing blood return |
| CN102688533B (en) * | 2012-06-26 | 2015-04-29 | 电白县康尔美生物科技有限公司 | Self-stopping type accurate filtering transfusion apparatus capable of preventing blood return |
| CN104888298A (en) * | 2015-03-24 | 2015-09-09 | 广州友安医疗科技有限公司 | Blood return prevention device and medical infusion apparatus |
| WO2016150319A2 (en) * | 2015-03-24 | 2016-09-29 | 广州友安医疗科技有限公司 | Device preventing backflow of blood, and medical infusion device |
| WO2016150319A3 (en) * | 2015-03-24 | 2017-02-09 | 广州友安医疗科技有限公司 | Device preventing backflow of blood, and medical infusion device |
| CN104958809A (en) * | 2015-06-01 | 2015-10-07 | 戎静华 | Anti-coagulation liquid checking infusion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |