CN204636998U - A kind of venous detaining needle anticoagulant syringe - Google Patents
A kind of venous detaining needle anticoagulant syringe Download PDFInfo
- Publication number
- CN204636998U CN204636998U CN201520106112.5U CN201520106112U CN204636998U CN 204636998 U CN204636998 U CN 204636998U CN 201520106112 U CN201520106112 U CN 201520106112U CN 204636998 U CN204636998 U CN 204636998U
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- China
- Prior art keywords
- medicinal liquid
- anticoagulant
- injection tube
- liquid bag
- venous detaining
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Abstract
The utility model discloses a kind of venous detaining needle anticoagulant syringe, comprise injection tube, piston, push rod, form air cavity between described injection tube outlet and piston, be provided with the medicinal liquid bag being loaded with anticoagulant in air cavity, medicinal liquid bag is fixedly connected on the inwall of injection tube; The outlet of described injection tube is connected with the female Luer of female thread.This utility model drives piston movement by push rod, gas in air cavity is compressed rear and then extrudes medicinal liquid bag, the anticoagulant realized in medicinal liquid bag is all squeezed in venous detaining needle, there is not liquor residue situation, using dosage accurately, improve medication efficiency, and decrease the workload of medical personnel, avoid medicine waste.
Description
Technical field
This utility model relates to a kind of venous detaining needle anticoagulant syringe, belongs to technical field of medical instruments.
Background technology
At present, at medical field, venous detaining needle has been widely used in clinical, the catheter retaining of remaining needle, in the vein of patient, forms a closed infusion channel, indwelling many days after having one-time puncture, the advantage that can repeatedly infuse, simplify transfusion operation step, decrease the misery of patient; Be particularly suitable for gerontal patient, children's, need multiple injection to treat but the patient of acupuncture treatment difficulty without sense of independence patient etc., especially critical patient, can open blood vessel access medication at any time, improves salvage success rate.Venous detaining needle not only may be used for conventional venous transfusion, and may be used for repeatedly taking a blood sample discontinuously, has both avoided the misery that repeated localised puncture causes to patient, has protected again the vein of patient, can also improve the work efficiency of medical personnel simultaneously.
Venous detaining needle comprises puncture needle and sleeve pipe.After puncture needle penetrates patient's vein with sleeve pipe, extract puncture needle, sleeve pipe stays in the body, and outer end connects infusion set or blood-taking device again.Sleeve pipe due to venous detaining needle needs the long period to stay in human vein, after each transfusion completes, blood is easily back in the venous indwelling needle cannula do not pulled out, because sleeve pipe inner blood is stagnated relatively, easily solidify generation clot, in venous detaining needle infusion process thereafter, clot easily enters blood circulation and causes thrombosis and bring potential safety hazard to patient, and anticoagulant therefore must be used to carry out tube sealing to remaining needle.
Along with the development of pre-encapsulated injector, in recent years anticoagulant is potted in advance this way in syringe and is widely used.The liquid anticoagulant of fixed amount is directly loaded in syringe and preserves, be equivalent to typical medicine packing container when storage of pharmaceutical, and be equivalent to common syringe in use, during use, carry out formulation operations again without the need to medical personnel, simple and convenient.
At present, the structure of commercially available anticoagulant syringe mainly comprises injection tube, push rod, piston, is sleeved in injection tube, defines medicinal liquid cavity between piston and barrel wall after push rod is connected with piston, is loaded with anticoagulant medicinal liquid in medicinal liquid cavity.But, owing to having gap between injection tube exit and piston, still have a small amount of medicinal liquid in the syringe therefore after injection remaining.The common specification of anticoagulant syringe has 3ml, 5ml and 10ml, if the anticoagulant injection volume of actual needs is less than 1ml, even only has several, then commercially available pre-encapsulated injector cannot realize.
Utility model content
This utility model technical issues that need to address are to provide a kind of venous detaining needle anticoagulant of a kind of venous detaining needle anticoagulant syringe syringe, this syringe can realize the injection of micro-medicinal liquid, after using can not in syringe remaining medicinal liquid, using dosage is accurate.
For solving the problems of the technologies described above, the technical scheme that this utility model adopts is:
A kind of venous detaining needle anticoagulant syringe, comprises injection tube, piston, push rod, and form air cavity between described injection tube outlet and piston, be provided with the medicinal liquid bag being loaded with anticoagulant in air cavity, medicinal liquid bag is fixedly connected on the inwall of injection tube; The outlet of described injection tube is connected with the female Luer of female thread.
Further improvement of the utility model is: the exit of described medicinal liquid bag is provided with barrier film, barrier film is provided with the tear line extending to diaphragm edge from diaphragm center.
Further improvement of the utility model is: described tear line is three tear lines of even cloth on barrier film.
Further improvement of the utility model is: described female Luer is the female Luer of 6%.
Further improvement of the utility model is: described injection tube is rigid plastics injection tube or Glass syringe cylinder, and described medicinal liquid bag is soft rubber medicinal liquid bag.
Owing to have employed technique scheme, the technological progress that this utility model obtains is:
This utility model provides a kind of venous detaining needle anticoagulant syringe, using the medicinal liquid cavity of conventional syringe as air cavity, the medicinal liquid bag that built-in volume is less in air cavity, then piston movement is driven by push rod, gas in air cavity is compressed rear and then extrudes medicinal liquid bag, and the anticoagulant realized in medicinal liquid bag is all squeezed in venous detaining needle.Described medicinal liquid bag is soft rubber material, and deformation quantity is large; When being overlayed on syringe outlet inwall after being subject to gas extrusion, anticoagulant medicinal liquid is extruded completely, there is not liquor residue situation, using dosage accurately, improve medication efficiency, and decrease the workload of medical personnel, avoid medicine waste.
The exit of this utility model syringe connects 6% female Luer, by the female thread of female Luer can coordinate with the external screw thread of venous detaining needle anticoagulant porch fixing, realizes sealing, ensure that the micro-medicinal liquid of release can all enter venous detaining needle and can not scatter at gap place during use anticoagulant syringe.
This utility model barrier film is provided with many tear lines, membrane ruptures, medicinal liquid can be made to flow out without the need to too large external force, operating process is simple and convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1, injection tube, 2, piston, 3, push rod, 4, medicinal liquid bag, 5, barrier film, 6, female Luer, 7, air cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further details:
A kind of venous detaining needle anticoagulant syringe, as shown in Figure 1, comprises injection tube 1, piston 2, push rod 3.Push rod 3 one end connects piston 2, and push rod 3 and piston 2 are sleeved in injection tube 1, are slidably matched between piston 2 and injection tube 1 inwall.
The outlet of described injection tube 1 is fixedly connected with and arranges female 6% female Luer 6; Part between the outlet of injection tube 1 and piston 2 forms air cavity 7, is loaded with air in air cavity 7; Also be provided with the medicinal liquid bag 4 be fixedly connected on injection tube 1 inwall in air cavity 7 inside, be loaded with micro-anticoagulant in medicinal liquid bag 4, the exit of medicinal liquid bag 4 is provided with barrier film 5.Described barrier film 5 there are several tear lines extending to barrier film 5 edge from barrier film 5 center.In the present embodiment, described tear line has 3, is distributed in circular diaphragm.
Described injection tube 1, push rod 3 are glass material or rigid plastics material, and described medicinal liquid bag 4 is soft rubber material.
Using method of the present utility model is:
Be connected with the external screw thread of venous detaining needle anticoagulant porch by the female thread of anticoagulant syringe by female Luer, then promote push rod downwards, make piston to the motion of syringe outlet direction, the gas in air cavity is compressed rear and then extruding medicinal liquid bag; When barrier film is subject to certain pressure, tear line is torn, and the anticoagulant in medicinal liquid bag is all clamp-oned in venous detaining needle.
Claims (5)
1. a venous detaining needle anticoagulant syringe, comprise injection tube (1), piston (2), push rod (3), it is characterized in that: between described injection tube (1) outlet and piston (2), form air cavity (7), be provided with the medicinal liquid bag (4) being loaded with anticoagulant in air cavity (7), medicinal liquid bag (4) is fixedly connected on the inwall of injection tube (1); The outlet of described injection tube (1) is connected with the female Luer (6) of female thread.
2. a kind of venous detaining needle anticoagulant syringe according to claim 1, it is characterized in that: the exit of described medicinal liquid bag (4) is provided with barrier film (5), barrier film (5) is provided with the tear line extending to barrier film (5) edge from barrier film (5) center.
3. a kind of venous detaining needle anticoagulant syringe according to claim 2, is characterized in that: described tear line is three tear lines of even cloth on barrier film (5).
4. a kind of venous detaining needle anticoagulant syringe according to claim 3, is characterized in that: described female Luer (6) is the female Luer of 6%.
5. a kind of venous detaining needle anticoagulant syringe according to claim 1, is characterized in that: described injection tube (1) is rigid plastics injection tube or Glass syringe cylinder, and described medicinal liquid bag (4) is soft rubber medicinal liquid bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106112.5U CN204636998U (en) | 2015-02-13 | 2015-02-13 | A kind of venous detaining needle anticoagulant syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106112.5U CN204636998U (en) | 2015-02-13 | 2015-02-13 | A kind of venous detaining needle anticoagulant syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204636998U true CN204636998U (en) | 2015-09-16 |
Family
ID=54089781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520106112.5U Expired - Fee Related CN204636998U (en) | 2015-02-13 | 2015-02-13 | A kind of venous detaining needle anticoagulant syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204636998U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105616160A (en) * | 2016-03-15 | 2016-06-01 | 王彦军 | Injector assistance control device |
| CN108525714A (en) * | 2018-04-23 | 2018-09-14 | 苏州仁端生物医药科技有限公司 | A kind of liquid storage and automatic sampling apparatus and its application |
| CN109731183A (en) * | 2019-03-22 | 2019-05-10 | 上海市东方医院（同济大学附属东方医院） | Thrombolytic drug injector |
-
2015
- 2015-02-13 CN CN201520106112.5U patent/CN204636998U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105616160A (en) * | 2016-03-15 | 2016-06-01 | 王彦军 | Injector assistance control device |
| CN108525714A (en) * | 2018-04-23 | 2018-09-14 | 苏州仁端生物医药科技有限公司 | A kind of liquid storage and automatic sampling apparatus and its application |
| CN108525714B (en) * | 2018-04-23 | 2023-08-29 | 苏州仁端生物医药科技有限公司 | Liquid storage and automatic sample injection device and application thereof |
| CN109731183A (en) * | 2019-03-22 | 2019-05-10 | 上海市东方医院（同济大学附属东方医院） | Thrombolytic drug injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20170213 |