CN201949452U - Automatic liquid medicine closing valve - Google Patents
Automatic liquid medicine closing valve Download PDFInfo
- Publication number
- CN201949452U CN201949452U CN2011200201479U CN201120020147U CN201949452U CN 201949452 U CN201949452 U CN 201949452U CN 2011200201479 U CN2011200201479 U CN 2011200201479U CN 201120020147 U CN201120020147 U CN 201120020147U CN 201949452 U CN201949452 U CN 201949452U
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- CN
- China
- Prior art keywords
- closing valve
- spool
- liquid medicine
- shell
- housing
- 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.)
- Expired - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an automatic liquid medicine closing valve, which belongs to an infusion instrument. The automatic liquid medicine closing valve comprises a shell, the lower end of the shell is provided with a liquid outlet, the upper end of the shell is connected with an upper cap, the top of the upper cap is provided with a liquid inlet, the upper end of the liquid outlet is higher than the bottom of the shell, a spool and a limit part are arranged in the shell, a float is arranged under the spool, a sealing diaphragm is arranged under the float, and a recess is arranged between the float and the sealing diaphragm. During infusion, the spool is floated up, so that the liquid outlet is opened; when liquid medicine runs out, the spool can automatically close the liquid medicine outlet, so that the liquid medicine outlet part of the shell is closed to prevent the air from entering a tube and the phenomenon of blood backflow, and thereby the safety of infusion is effectively guaranteed. Consequently, the automatic liquid medicine closing valve can prevent air bubbles from entering the vein of a patient, so that the phenomenon of blood backflow cannot happen, and meanwhile, the working pressure of medical personnel can be relieved.
Description
Technical field
This utility model relates in a kind of medical field the infusion set of using when carrying out venous transfusion to clinical patients, be specifically related to a kind of when venous transfusion automatically closing pipe line, prevent the intravital medicinal liquid self-closing valve of air admission patient.
Background technology
At present, disposable infusion set does not have automatic sealing process after medicinal liquid is totally lost, and this causes two kinds of adverse consequencess, when 1. changing infusion bottle, does not note slightly as if the nursing staff, will make in the air admission patient vessel; 2. if medical personnel are absent from the scene or in time do not close the actuator of (or being not closed completely) transfusion device, will cause the blood back phenomenon.And the equal entail dangers to patient's of above-mentioned factor life security.
The utility model content
The technical problems to be solved in the utility model is that transfusion device the blood back phenomenon can occur, jeopardize patient safety, and a kind of medicinal liquid self-closing valve that prevents the blood back phenomenon is provided.
The technical solution of the utility model realizes in the following manner: a kind of medicinal liquid self-closing valve, comprise housing, the housing lower end is provided with liquid outlet, the housing upper end links to each other with loam cake, and the loam cake top is provided with inlet, and the upper end of described liquid outlet is higher than the bottom surface of housing, be provided with spool and locating part in the housing, the spool below is provided with buoyancy aid, and the buoyancy aid below is provided with seal membrane, is provided with recess between buoyancy aid and the seal membrane.
Described liquid outlet upper end is higher than housing bottom 1 ~ 2mm.
The footpath of described buoyancy aid sidewall upwards is provided with several prisms.
Described prism is distributed on the buoyancy aid sidewall.
The sidewall of buoyancy aid described in the preferred version is provided with six or eight prisms.
Described seal membrane and buoyancy aid are integral structures.
Be provided with spool in this utility model, during transfusion, spool floats, liquid outlet is unimpeded, is totally lost no longer following the time when medicinal liquid, and spool can be closed medicine liquid outlet automatically, make the medicine liquid outlet portion sealing of housing, stop the air admission pipeline, be unlikely and cause the blood back phenomenon, thereby guarantee the safety of infusing effectively.Therefore, medicinal liquid self-closing valve of the present utility model need not patient and the nursing staff pay close attention to the end of transfusion, when treating that transfusion finishes, transfusion device can seal infusion pipeline automatically by means of spool, prevent that air bubble from entering patient's vein, be unlikely and cause the blood back phenomenon, alleviated medical worker's tense working simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of buoyancy aid among Fig. 1.
Fig. 3 is the elevational schematic view of Fig. 2.
Fig. 4 is the structural representation of seal membrane among Fig. 1.
The specific embodiment
As shown in drawings, this utility model comprises housing 5, housing 5 lower ends are provided with liquid outlet 6, housing 5 upper ends link to each other with loam cake 2, and loam cake 2 tops are provided with inlet 1, and the upper end of described liquid outlet 6 is higher than the bottom surface of housing 5, be provided with spool 4 and locating part 3 in the housing 5, spool 4 belows are provided with buoyancy aid 4-1, and buoyancy aid 4-1 below is provided with seal membrane 4-2, is provided with recess 7 between buoyancy aid 4-1 and the seal membrane 4-2.
Described liquid outlet 6 upper ends are higher than housing 5 bottoms 1 ~ 2mm.
Described buoyancy aid 4-1 sidewall is provided with six or eight or a plurality of prismatic 4-3.Described prismatic 4-3 is distributed on the buoyancy aid 4-1 sidewall.The existence of prismatic 4-3 can prevent that buoyancy aid 4-1 is adsorbed on housing 5 inwalls and causes spool 4 to tilt to block not descend.
When this utility model uses, inlet 1 on the loam cake 2 directly or by conduit links to each other with the dropping funnel lower end with transfusion device, the liquid outlet 6 of housing 5 links to each other with the conduit at the rear portion, dropping funnel lower end of transfusion device, when needs input medicinal liquid, medicinal liquid flows in medicinal liquid self-closing valve housing 5 inner chambers by inlet 1, spool 4 constantly flows into along with medicinal liquid and floats, medicinal liquid is imported human body by liquid outlet 6 through conduit like this, and be totally lost no longer following the time when medicinal liquid, spool 4 drops on the port of liquid outlet 6, and make seal membrane 4-2 seal up liquid outlet 6 by negative pressure in the gravity of spool 4 and the tube for transfusion, make air can't enter in the tube for transfusion, be absent from the scene also to be unlikely and the blood back phenomenon occurs even close medical personnel, thereby guarantee the safety of infusing.
In this utility model, spool 4 in housing 5 inner chambers floats along with medicinal liquid constantly flows into, be limited in certain position by spacing card 3, this moment, medicine liquid droplet can not overturned on spool 4, so the port of liquid outlet 6 to locating part distance from bottom must be less than the maximum outside diameter of spool 4.
This utility model also can be one-body molded with dropping funnel.
Claims (6)
1. medicinal liquid self-closing valve, comprise housing (5), housing (5) lower end is provided with liquid outlet (6), housing (5) upper end links to each other with loam cake (2), loam cake (2) top is provided with inlet (1), it is characterized in that: the upper end of described liquid outlet (6) is higher than the bottom surface of housing (5), be provided with spool (4) and locating part (3) in the housing (5), spool (4) below is provided with buoyancy aid (4-1), buoyancy aid (4-1) below is provided with seal membrane (4-2), is provided with recess (7) between buoyancy aid (4-1) and the seal membrane (4-2).
2. medicinal liquid self-closing valve according to claim 1 is characterized in that: described liquid outlet (6) upper end is higher than housing (5) bottom 1 ~ 2mm.
3. medicinal liquid self-closing valve according to claim 1 is characterized in that: the footpath of described buoyancy aid (4-1) sidewall upwards is provided with several prisms (4-3).
4. according to the described medicinal liquid self-closing valve of one of claim 1 ~ 3, it is characterized in that: described prism (4-3) is distributed on buoyancy aid (4-1) sidewall.
5. medicinal liquid self-closing valve according to claim 4 is characterized in that: described buoyancy aid (4-1) sidewall is provided with six or eight prisms (4-3).
6. medicinal liquid self-closing valve according to claim 1 is characterized in that, described seal membrane (4-2) is an integral structure with buoyancy aid (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200201479U CN201949452U (en) | 2011-01-21 | 2011-01-21 | Automatic liquid medicine closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200201479U CN201949452U (en) | 2011-01-21 | 2011-01-21 | Automatic liquid medicine closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201949452U true CN201949452U (en) | 2011-08-31 |
Family
ID=44493582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200201479U Expired - Lifetime CN201949452U (en) | 2011-01-21 | 2011-01-21 | Automatic liquid medicine closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201949452U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921059A (en) * | 2012-10-12 | 2013-02-13 | 上海宝舜医疗器械有限公司 | Liquid stopping buoy of automatic liquid stopping infusion device |
| CN103800972A (en) * | 2012-11-09 | 2014-05-21 | 郑州昊能科技有限公司 | Disposable vein infusion apparatus automatic cut-off drip chamber |
| CN104274886A (en) * | 2013-07-29 | 2015-01-14 | 江西丽华鑫朗药业科技有限公司 | Precise automatic liquid-stopping air-bubble-proof infusion device |
| CN104689419A (en) * | 2015-02-12 | 2015-06-10 | 武汉博硕聚才科技有限公司 | Method for preparing closed soft bag for floating body of infusion apparatus and anti-blood return infusion apparatus |
| CN104707222A (en) * | 2013-12-14 | 2015-06-17 | 广东龙心医疗器械有限公司 | Disposable infusion instrument with liquid stopping function |
| CN109647808A (en) * | 2018-12-24 | 2019-04-19 | 济民健康管理股份有限公司 | Pre-filled catheter flusher and pre-filled catheter flusher assemble output method |
| CN109772823A (en) * | 2019-01-12 | 2019-05-21 | 江山跟政科技有限公司 | If the washer and its filling fluid-discharge method of delivery nozzle plug |
-
2011
- 2011-01-21 CN CN2011200201479U patent/CN201949452U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921059A (en) * | 2012-10-12 | 2013-02-13 | 上海宝舜医疗器械有限公司 | Liquid stopping buoy of automatic liquid stopping infusion device |
| CN103800972A (en) * | 2012-11-09 | 2014-05-21 | 郑州昊能科技有限公司 | Disposable vein infusion apparatus automatic cut-off drip chamber |
| CN104274886A (en) * | 2013-07-29 | 2015-01-14 | 江西丽华鑫朗药业科技有限公司 | Precise automatic liquid-stopping air-bubble-proof infusion device |
| CN104707222A (en) * | 2013-12-14 | 2015-06-17 | 广东龙心医疗器械有限公司 | Disposable infusion instrument with liquid stopping function |
| CN104689419A (en) * | 2015-02-12 | 2015-06-10 | 武汉博硕聚才科技有限公司 | Method for preparing closed soft bag for floating body of infusion apparatus and anti-blood return infusion apparatus |
| CN109647808A (en) * | 2018-12-24 | 2019-04-19 | 济民健康管理股份有限公司 | Pre-filled catheter flusher and pre-filled catheter flusher assemble output method |
| CN109772823A (en) * | 2019-01-12 | 2019-05-21 | 江山跟政科技有限公司 | If the washer and its filling fluid-discharge method of delivery nozzle plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee after: Henan Shugang Jianshi Medical Devices Group Co., Ltd. Address before: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee before: Henan Shuguang Jianshi Medical Equipment Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |