CN102580175A - Automatic blood-return preventive infusion set - Google Patents
Automatic blood-return preventive infusion set Download PDFInfo
- Publication number
- CN102580175A CN102580175A CN2011100260077A CN201110026007A CN102580175A CN 102580175 A CN102580175 A CN 102580175A CN 2011100260077 A CN2011100260077 A CN 2011100260077A CN 201110026007 A CN201110026007 A CN 201110026007A CN 102580175 A CN102580175 A CN 102580175A
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- filter
- liquid medicine
- dropping funnel
- filter membrane
- liquid
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to an automatic blood-return preventive infusion set, which is characterized in that an exhaust window is arranged in a dropper, an exhaust hole of the exhaust window is arranged on a dropper cover, a liquid medicine filter is arranged below the exhaust window, a filter membrane consists of multiple hydrophilic fiber membrane layers, a drain hole is arranged on the periphery of the filter membrane so that the filter membrane is exposed outside the liquid medicine filter, and a drain groove communicated with the filter membrane having the drain hole is arranged on the outer peripheral wall of a base of the liquid medicine filter. The exhaust window has an automatic exhaust function, and the filter membrane consisting of the multiple hydrophilic fiber membrane layers has the effect of stopping liquid automatically. The drain groove is capable of guiding residual liquid to the filter membrane to realize micro-infusion, thereby preventing blood return.
Description
Technical field
The present invention 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 is difficult, medicinal liquid has flowed the air admission downcomer, blood backflow entering downcomer etc. all is unsolved for a long time problem.
In order to address these problems, the patent and the product of existing in recent years automatic vent, automatic solution stopping transfusion device.The automatic solution stopping fine straining of Chinese patent is crossed filter infusion apparatus (number of patent application 200920351185.5) and is proposed at exhausting window of dropping funnel lid mounted device; Liquid gets into exhaustor after the aerofluxus for the first time of this structure; Can not carry out the aerofluxus second time; Automatically downcomer sealing after the solution stopping, the venous pressure of human body produce blood back and form thrombosis greater than the pressure in the conduit.Therefore, existing patent and product fail to accomplish continuous automatic vent, solution stopping has the effect of blood return prevention again automatically.
Summary of the invention
The object of the present invention is to provide a kind of automatic blood return preventing infusion device, it has the function of continuous automatic vent, automatic solution stopping and blood return prevention.
The objective of the invention is to realize like this: exhausting window is arranged in the dropping funnel; The exhaust gas filter film is processed with vegetables water material, and it is waterproof to ventilate, and steam vent covers at dropping funnel; Liquid can not get 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 solution stopping 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 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, behind the medical filtration membrane filtration, flows into downcomer and transfusion needle, 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 prevent the air admission downcomer through reaching automatic solution stopping.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 get in the exhausting window, aerofluxus for the second time and exhaust phase for the first time with, gas unnecessary in the dropping funnel is discharged from the influencing meridian exhausting window.So automatic exhausting anti-blood backflow infusion apparatus can continuous several times automatic vent, solution stopping and blood return prevention automatically.
The present invention only needs exhausting window is arranged in the dropping funnel; Liquid medicine filter is below exhausting window, and liquid medicine filtering membrane is the rarest two-layer, and 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 invention is drawn by following embodiment and accompanying drawing.
Fig. 1 is the profile of the automatic blood return preventing infusion device of proposition according to the present invention.
The specific embodiment
Specify the details and the working condition of the concrete device that proposes according to the present invention below in conjunction with Fig. 1.
Automatically blood return preventing infusion device comprises a main body dropping funnel (2), and an exhausting window (1) is arranged in the main body, is a liquid medicine filter (5) below the exhausting window, and 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 gets into 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 automatic solution stopping effect.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, solution stopping and blood return prevention automatically through needle for inserting bottle.Therefore blood return preventing infusion device can reach automatic vent in use repeatedly automatically, automatically solution stopping and blood return prevention effect.
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, and there is a liquid medicine filter (5) below of exhausting window, and 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 |
|---|---|---|---|
| CN2011100260077A CN102580175A (en) | 2011-01-16 | 2011-01-16 | Automatic blood-return preventive infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100260077A CN102580175A (en) | 2011-01-16 | 2011-01-16 | Automatic blood-return preventive infusion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102580175A true CN102580175A (en) | 2012-07-18 |
Family
ID=46469761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100260077A Pending CN102580175A (en) | 2011-01-16 | 2011-01-16 | Automatic blood-return preventive infusion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102580175A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014023122A1 (en) * | 2012-08-07 | 2014-02-13 | 上海金塔医用器材有限公司 | Filter with controllable anti-backflow time in medical infusion device, and medical infusion device |
| CN103977473A (en) * | 2014-05-16 | 2014-08-13 | 戎静华 | Automatic stopping infusion device provided with exhausting fluid storing tube and micro-flow-rate infusion tube |
| CN105944178A (en) * | 2016-06-22 | 2016-09-21 | 南京鑫博维新材料技术有限公司 | Auto-disposal auto-exhaustion anti-reflux needleless infusion set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456721Y (en) * | 2000-05-29 | 2001-10-31 | 李增玉 | Transfusion system |
| CN101670134A (en) * | 2008-09-13 | 2010-03-17 | 谢世庚 | Automatic exhaust blood return prevention infusion apparatus |
| CN201481896U (en) * | 2009-06-17 | 2010-05-26 | 林小兵 | Infusion dropper and infusion device |
| CN201969108U (en) * | 2011-01-16 | 2011-09-14 | 谢世庚 | Automatic blood backflow prevention infusion apparatus |
-
2011
- 2011-01-16 CN CN2011100260077A patent/CN102580175A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456721Y (en) * | 2000-05-29 | 2001-10-31 | 李增玉 | Transfusion system |
| CN101670134A (en) * | 2008-09-13 | 2010-03-17 | 谢世庚 | Automatic exhaust blood return prevention infusion apparatus |
| CN201481896U (en) * | 2009-06-17 | 2010-05-26 | 林小兵 | Infusion dropper and infusion device |
| CN201969108U (en) * | 2011-01-16 | 2011-09-14 | 谢世庚 | Automatic blood backflow prevention infusion apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014023122A1 (en) * | 2012-08-07 | 2014-02-13 | 上海金塔医用器材有限公司 | Filter with controllable anti-backflow time in medical infusion device, and medical infusion device |
| CN103977473A (en) * | 2014-05-16 | 2014-08-13 | 戎静华 | Automatic stopping infusion device provided with exhausting fluid storing tube and micro-flow-rate infusion tube |
| CN105944178A (en) * | 2016-06-22 | 2016-09-21 | 南京鑫博维新材料技术有限公司 | Auto-disposal auto-exhaustion anti-reflux needleless infusion set |
| CN105944178B (en) * | 2016-06-22 | 2023-02-14 | 南京鑫博维新材料技术有限公司 | Self-destruction type automatic exhaust anti-reflux needleless infusion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |