CN2452510Y - Syrinnge with function of preventing plood back-flow - Google Patents
Syrinnge with function of preventing plood back-flow Download PDFInfo
- Publication number
- CN2452510Y CN2452510Y CN 00266951 CN00266951U CN2452510Y CN 2452510 Y CN2452510 Y CN 2452510Y CN 00266951 CN00266951 CN 00266951 CN 00266951 U CN00266951 U CN 00266951U CN 2452510 Y CN2452510 Y CN 2452510Y
- Authority
- CN
- China
- Prior art keywords
- floating valve
- observing tube
- transfusion device
- shape
- short
- 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 - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a syringe with function of preventing blood back-flow. A floating valve is arranged in an observation tube of the syringe, and the lower end of the floating valve is accommodated to the shape of a physic liquor outlet on the lower end of the observation tube. When the physic liquor is completely transfused, the floating valve falls to plug up the physic liquor outlet of the observation tube to prevent blood from flowing backwards. The structure of the floating valve can be a small segment hollow short column, the lower end of the short column is in the shape of short cone, and the structure of the floating valve can also be a hollow sphere.
Description
This utility model belongs to medical apparatus and instruments.
Transfusion is a kind of common methods of treatment disease, transfusion needs to use transfusion device, general transfusion device in use medical personnel to want the frequent transfusion situation is observed, especially medicinal liquid to be about to defeated most the time, medical personnel can not leave, medicinal liquid is defeated should be extracted infusion needle only immediately, otherwise patient's blood can reflux to transfusion device, in the infusion process, and healthcare givers's inconvenient operation, once the carelessness meeting works the mischief to the patient, use dangerous.
The purpose of this utility model provides a kind of transfusion device that prevents that blood from refluxing, and can prevent that the defeated back to the greatest extent of medicinal liquid blood from refluxing, and makes in the infusion process medical care personnel operation more convenient, can not work the mischief to the patient because of blood refluxes, and uses safer.
The purpose of this utility model be this realize.It has a floating valve in the observing tube of the observation transfusion speed of existing transfusion device, the medicine liquid outlet shape of the lower end of floating valve and observing tube lower end adapts.When in the infusion process medicinal liquid being arranged, floating valve swims in does not influence flowing of medicinal liquid in the medicinal liquid of observing tube, and medicinal liquid is defeated to the greatest extent the time, floating valve falls, the medicine liquid outlet of observing tube lower end is blocked in the lower end of floating valve, makes medicinal liquid stop to flow, thereby has stoped the generation of blood of human body backflow phenomenon.
The utility model has the advantages that, in observing tube, increase a floating valve, when medicinal liquid is failed to the greatest extent, floating valve falls and the medicine liquid outlet of observing tube lower end is blocked, transfusion device is closed, stop blood to reflux, can not cause damage to the patient because of blood refluxes, it is safer to infuse, and also reduces medical personnel's inconvenient operation.In general transfusion device, only increase a floating valve, simple in structure, practical.
The concrete structure of utility model is provided by following examples and accompanying drawing thereof.
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail:
Fig. 1 is the longitudinal sectional drawing of first kind of embodiment of this utility model.
Fig. 2 is first kind of embodiment A of this utility model-A place transverse cross-sectional view.
Fig. 3 is the profile of second kind of embodiment of this utility model.
In Fig. 1, observing tube 1 is thicker transparent pipe, the upper end of observing tube 1 connects on the transfusion device manages 2, the lower end connects transfusion device pipe 3 down, floating valve 4 is arranged in the observing tube 1, floating valve 4 among Fig. 1 is a bit of short cylindrical shapes of intermediate hollow, the short cylindrical diameter is slightly littler than observing tube endoporus, there are many grooves by medicinal liquid on the short cylindrical surface, the short cylindrical lower end is short cone shape, short cone shape and observing tube 1 exit shape adapt, and the floating valve 4 of the short cylindrical shape more smaller than observing tube 1 endoporus can only move up and down in observing tube 1, and Short Cylinder Surface aligns the short cone shape of floating valve 4 lower ends and observing tube 4 lower end medicine liquid outlets.The infusion process herb liquid flows into observing tube 1 by pipe on the transfusion device 2, floating valve 4 was floating in the observing tube medicinal liquid when medicinal liquid was arranged, medicinal liquid is through transfusion device down pipe 3 outflows of the groove on floating valve 4 external cylindrical surfaces by observing tube 1 lower end, when medicinal liquid is failed to the greatest extent, floating valve 4 falls, and the short cone shape of floating valve 4 lower ends is blocked the medicine liquid outlet of observing tube 1 lower end.
Floating valve 4 has four grooves by medicinal liquid in Fig. 2, and the circular cross-section of hollow as can be seen.
Floating valve 4 in Fig. 3 in the observing tube 1 is hollow balls, and the shape of the profile of georama and observing tube 1 lower end medicine liquid outlet adapts, the outlet that georama was blocked observing tube 1 lower end when georama fell.
Claims (3)
1. one kind comprises pipe (2) on observing tube (1), the transfusion device, the transfusion device transfusion device that prevents the blood backflow of pipe (3) down, it is characterized in that: in the observing tube (1) of transfusion device a floating valve (4) is arranged, the medicine liquid outlet shape of the lower end of floating valve (4) and observing tube (1) lower end adapts.
2. the said transfusion device that prevents that blood from refluxing of claim 1 is characterized in that: the structure of floating valve (4) is a bit of short cylindrical of intermediate hollow, the short cylindrical diameter is slightly littler than observing tube (1) endoporus, there is the groove of multiple tracks by medicinal liquid on the short cylindrical surface, the short cylindrical lower end adapts for short cone shape, short cone shape and observing tube exit shape.
3. the said transfusion device that prevents that blood from refluxing of claim 1 is characterized in that: the floating valve (4) in the observing tube (1) is a hollow ball, and the shape of the profile of georama and observing tube (1) lower end medicine liquid outlet adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266951 CN2452510Y (en) | 2000-12-21 | 2000-12-21 | Syrinnge with function of preventing plood back-flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266951 CN2452510Y (en) | 2000-12-21 | 2000-12-21 | Syrinnge with function of preventing plood back-flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2452510Y true CN2452510Y (en) | 2001-10-10 |
Family
ID=33620903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266951 Expired - Fee Related CN2452510Y (en) | 2000-12-21 | 2000-12-21 | Syrinnge with function of preventing plood back-flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2452510Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579549B (en) * | 2009-02-08 | 2011-06-15 | 戎静华 | Infusion apparatus capable of preventing blood returning |
| CN107551351A (en) * | 2017-09-28 | 2018-01-09 | 程小宁 | Paediatrics light proofing infusion apparatus |
-
2000
- 2000-12-21 CN CN 00266951 patent/CN2452510Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579549B (en) * | 2009-02-08 | 2011-06-15 | 戎静华 | Infusion apparatus capable of preventing blood returning |
| CN107551351A (en) * | 2017-09-28 | 2018-01-09 | 程小宁 | Paediatrics light proofing infusion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |