CN2373107Y - Transfusion system without blood return - Google Patents
Transfusion system without blood return Download PDFInfo
- Publication number
- CN2373107Y CN2373107Y CN 99203580 CN99203580U CN2373107Y CN 2373107 Y CN2373107 Y CN 2373107Y CN 99203580 CN99203580 CN 99203580 CN 99203580 U CN99203580 U CN 99203580U CN 2373107 Y CN2373107 Y CN 2373107Y
- Authority
- CN
- China
- Prior art keywords
- bubble
- transfusion
- backflow preventing
- mouth plug
- preventing mouth
- 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
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a transfusion device without blood return, and belongs to the technical field of a medical appliance. The utility model is mainly composed of a dropping bulb, an upper transfusion tube, a lower transfusion tube a non-return plug. The utility model has the advantages of reasonable design, simple structure and high safety, alleviates a patient's pain and economic burden, and is an ideal transfusion device.
Description
This utility model relates to a kind of disposable Transfusion system without blood return, and it belongs to technical field of medical instruments.Employed clinically at present transfusion device exists the drawback of " after medicinal liquid is totally lost, owing to timely withdrawal of needle is introduced blood back in the tube for transfusion "; Many group transfusions, if blood solidifies just in syringe needle and tube for transfusion and need change transfusion device, acupuncture treatment brings very big misery and financial burden to patient once more.
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of disposable Transfusion system without blood return that can prevent that blood from refluxing is provided.
This utility model is realized by the following technical solutions, now is illustrated with reference to the accompanying drawings.
Description of drawings:
Fig. 1 is this utility model critical piece structural representation.
Fig. 2 is that medicinal liquid drips the bubble state diagram when being totally lost.
Fig. 3 is the backflow preventing mouth plug structural representation.
As shown in Figure 1: upper tubing (1) inserts in the bubble (2) and is fixed.The infusion bottle herb liquid enters by upper tubing (1) and drips in the bubble (2), through tube for transfusion (4) and syringe needle are imported human body slowly down.Drip in the bubble (2) and be provided with backflow preventing mouth plug (3), the shape of backflow preventing mouth plug is shown in figure (3), and its top is big cone, and maximum outside diameter is slightly less than and drips bubble (2) internal diameter suitable for reading; Backflow preventing mouth plug (3) middle part is little cone, and its maximum outside diameter is slightly larger than and drips bubble (2) end opening internal diameter; The backflow preventing mouth plug lower end is provided with guide pin.Earlier backflow preventing mouth plug (3) is dripped bubble from dripping suitable for reading the putting into of bubble (2) during assembling, major part is last, microcephaly's infra.Backflow preventing mouth plug selects for use medical latex to make, and its proportion is slightly less than water.
During use, the upper cone top of backflow preventing mouth plug (3) floats on drips bubble (2) inner liquid medicine liquid level, lower cone is suspended from and drips bubble (2) end opening top, guide pin has entered the bottom stenosis of dripping bubble (2), play the guiding role, backflow preventing mouth plug (3) oblique cutting can not play the non-return effect in the downside wall that drips bubble (2) when finishing in case infuse.
When the bottle herb liquid is totally lost, the liquid level that drips in the bubble (2) begins to descend, backflow preventing mouth plug (3) also descends thereupon, because the guide effect of guide pin, the lower cone of backflow preventing mouth plug (3) is slowly near place, thin footpath, the bottom of dripping bubble (2), because fluid mechanics principle, stop up the end opening of living to drip bubble (2) at last fully, make to drip in bubble (2) and the following tube for transfusion (4) and retain big medicine amount liquid and unlikely loss, thereby keep certain hydraulic pressure, therefore this hydraulic pressure make the unlikely refluence of transfusion person's blood greater than human blood-pressure, prevented the generation of blood back.
This product design is reasonable, and is simple in structure, safe and reliable, alleviated misery and financial burden that disease is gone into greatly, is a kind of ideal medical apparatus and instruments of people.
Claims (3)
1. a Transfusion system without blood return is mainly formed by dripping bubble, upper tubing and following tube for transfusion, it is characterized in that: be provided with backflow preventing mouth plug (3) in the bubble (2).
2. transfusion device according to claim 1 is characterized in that: the top of backflow preventing mouth plug (3) is maximum gauge less than a big cone that drips bubble (2) upper port internal diameter, and the bottom is that maximum gauge is greater than a little cone that drips bubble (2) lower port internal diameter.
3. transfusion device according to claim 1 is characterized in that: backflow preventing mouth plug (3) lower end is provided with guide pin, and its length requirement is when normal operating conditions, guide pin has entered and has dripped in bubble (2) lower port, play the guiding role, its diameter is tiny as far as possible, must not hinder medicinal liquid and normally flow downward.Guide pin is thin staight needle body, must not be crooked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203580 CN2373107Y (en) | 1999-02-28 | 1999-02-28 | Transfusion system without blood return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99203580 CN2373107Y (en) | 1999-02-28 | 1999-02-28 | Transfusion system without blood return |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373107Y true CN2373107Y (en) | 2000-04-12 |
Family
ID=33998647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99203580 Expired - Fee Related CN2373107Y (en) | 1999-02-28 | 1999-02-28 | Transfusion system without blood return |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373107Y (en) |
-
1999
- 1999-02-28 CN CN 99203580 patent/CN2373107Y/en not_active Expired - Fee Related
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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 |