CN2584199Y - Disposable transfusion ssytem with stop ball - Google Patents
Disposable transfusion ssytem with stop ball Download PDFInfo
- Publication number
- CN2584199Y CN2584199Y CN 02288978 CN02288978U CN2584199Y CN 2584199 Y CN2584199 Y CN 2584199Y CN 02288978 CN02288978 CN 02288978 CN 02288978 U CN02288978 U CN 02288978U CN 2584199 Y CN2584199 Y CN 2584199Y
- Authority
- CN
- China
- Prior art keywords
- liquid chamber
- infusion
- transfusion
- middle liquid
- ball
- 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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Abstract
The utility model relates to a disposable infusion device with a stop ball. A liquid-taking needle head, an upper infusion pipe, a cover of a middle liquid chamber, the middle liquid chamber, a lower infusion pipe, a regulating valve, a rotary connecting head, a lower infusion needle pipe and an infusion needle head are orderly connected into a gravity infusion channel. The lower part of the middle liquid chamber is made into a cone, and a stop ball is arranged in the middle liquid chamber. The stop ball falls into the cone on the lower part of the middle liquid chamber during the course that liquid level in the middle liquid chamber continuously lowers after no liquid is dropped into the middle liquid chamber from an infusion bottle in the final infusion stage, and a sealing ring is formed by the stop ball and the cone to play sealing and partitioning functions. The infusion process can automatically stop to reserve time to a patient and a nurse to process.
Description
This utility model relates to a kind of disposable infusion device that can end liquid flow when the transfusion final stage.
Affiliated technical field:
At present, known medical disposable transfusion device is by getting liquid syringe needle, upper tubing, center liquid chamber, descending tube for transfusion, control valve, adaptor, time Transfusion needle pipe, infusion needle to connect and constitute, and all have intake channel in the bottom of infusion bottle and the top of center liquid chamber, to keep atmospheric pressure, and the infusion bottle that hangs and get liquid syringe needle, upper tubing and center liquid chamber and all be higher than by the position of transfusion patient, the pressure that liquid-column height produces in the transfusion device just can be transfused in patient's the body under action of gravity by transfusion easily greater than being pressed by the body of transfusion patient.
Background technology:
But because existing disposable transfusion device does not have the automatic cut-off device, when the final stage of one bottle of transfusion, if patient or nurse personnel can not in time notify the nurse to change infusion bottle or end transfusion, the liquid that infusion bottle just may take place flows to end, can not continue to inject center liquid chamber, begun to descend by the liquid level of transfusion from center liquid chamber, finally the pressure that is produced by the fluid column of transfusion has been lower than patient's body pressure, thereby cause patients'blood to flow out external " blood back " phenomenon, cause influencing patient's physical and mental health along tube for transfusion.
Summary of the invention:
The technical problem that solves: can not be in the deficiency of transfusion final stage automatic cut-off in order to overcome existing disposable transfusion device, this utility model provides the disposable transfusion device of a kind of band by ball, this transfusion device can not only be finished the gravity transfusion, and can be when one bottle of liquid flows to end the automatic cut-off transfusion device, thereby leave patient and nurse's processing time for.
The technical scheme that its technical problem that solves this utility model adopts is: cone is made in the bottom of center liquid chamber, and place one by spheroid in center liquid chamber.After after getting liquid syringe needle, upper tubing, intermediate liquid chamber cap, being injected center liquid chamber from infusion bottle owing to action of gravity by transfusion, the liquid level of center liquid chamber raises, liquid level near or when surpassing by the ball top, buoyancy of liquid is greater than behind the gravity of ball, buoyancy makes by ball and breaks away from floatingly with contacting of center liquid chamber lower cone body to come up, can be flowed into tube for transfusion down through the center liquid chamber cone by transfusion, enter in the patient body by control valve, adaptor, following Transfusion needle pipe, infusion needle again.When the liquid in the infusion bottle can not flow out, just there is not liquid to splash into center liquid chamber, thereby cause the liquid level of center liquid chamber constantly to descend, also descend under the effect of gravity by ball thereupon, simultaneously because the effect of letting out under the liquid and the guide effect of cone, drop to center liquid chamber lower cone body and end the tangent place of spheroid by club, form the contact sealing effectiveness of a border, and completely cut off outside atmospheric pressure, make liquid-column height under atmospheric pressure and action of gravity, not continue to descend, after the transfusion path was intercepted, infusion process stopped automatically.When having liquid to splash into center liquid chamber again, buoyancy makes by ball and breaks away from floatingly with contacting of center liquid chamber lower cone body to come up, and has opened sealing, and infusion process can be proceeded.
The beneficial effects of the utility model are: can be in the original functions that keeps disposable transfusion device, and the final stage of automatic cut-off transfusion prevents the generation of blood back phenomenon easily, and is simple in structure.
Description of drawings:
Below in conjunction with accompanying drawing this utility model is further specified.Fig. 1 is schematic diagram of the present utility model and structural map.1. get the liquid syringe needle among the figure, 2. upper tubing, and 3. intermediate liquid chamber cap, 4. center liquid chamber 5. by ball, 6. descends tube for transfusion, 7. control valve, 8. adaptor 9. descends Transfusion needle pipe, 10. infusion needle.
The specific embodiment: among Fig. 1, get liquid syringe needle (1), upper tubing (2), intermediate liquid chamber cap (3), center liquid chamber (4), following tube for transfusion (6), control valve (7), adaptor (8), following Transfusion needle pipe (9), infusion needle (10) is linked in sequence into a fluid path, opens intermediate liquid chamber cap (3) and will close after ball (5) are put into again.In order to strengthen sealing effectiveness by ball (5), proportion by ball (5) should be slightly little than the proportion of common infusion fluid body, the lower cone body of center liquid chamber (4) should be the cone of comparison point, comes off out from sealing by ball (5) when transfusion device is swung so that strengthen guide effect and prevent.
Claims (1)
1. disposable transfusion device, by getting liquid syringe needle, upper tubing, intermediate liquid chamber cap, center liquid chamber, being linked in sequence into a path by ball, following tube for transfusion, control valve, adaptor, following Transfusion needle pipe, infusion needle, it is characterized in that: can cut with the lower cone bulk phase of center liquid chamber by ball and form the effect of sealing partition, thereby end infusion process automatically in the final stage of transfusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288978 CN2584199Y (en) | 2002-11-29 | 2002-11-29 | Disposable transfusion ssytem with stop ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288978 CN2584199Y (en) | 2002-11-29 | 2002-11-29 | Disposable transfusion ssytem with stop ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584199Y true CN2584199Y (en) | 2003-11-05 |
Family
ID=33748680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288978 Expired - Fee Related CN2584199Y (en) | 2002-11-29 | 2002-11-29 | Disposable transfusion ssytem with stop ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584199Y (en) |
-
2002
- 2002-11-29 CN CN 02288978 patent/CN2584199Y/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 |