CN203183396U - Pre-charging type catheter flusher - Google Patents
Pre-charging type catheter flusher Download PDFInfo
- Publication number
- CN203183396U CN203183396U CN 201320190770 CN201320190770U CN203183396U CN 203183396 U CN203183396 U CN 203183396U CN 201320190770 CN201320190770 CN 201320190770 CN 201320190770 U CN201320190770 U CN 201320190770U CN 203183396 U CN203183396 U CN 203183396U
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- China
- Prior art keywords
- outer sleeve
- overcoat
- piston
- catheter flusher
- core rod
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Abstract
The utility model relates to a pre-charging type catheter flusher which can effectively solve the problem of blood return caused by elastic rebound of a piston after an existing disposable pre-charging type catheter flusher completes injection. According to the technical scheme, an outer sleeve and a core rod are included, an outer sleeve roll rim is arranged at one end of the outer sleeve, an outer circular cone inner thread connector is arranged at the other end of the outer sleeve, a clamping groove step is arranged in the outer circular cone inner thread connector, the piston matched with the inner wall of the outer sleeve is arranged in the outer sleeve, a pressing hand is arranged at one end of the core rod, a double-cantilever elastic clamp corresponding to the clamping groove step is arranged at the other end of the core rod, the core rod is fixed in the outer sleeve through the piston, and the outer circular cone inner thread connector on the upper portion of the outer sleeve is connected with an outer thread inner circular cone protective cap. The pre-charging type catheter flusher is ingenious in structure, simple in manufacturing technology and convenient to use, injector correlation blood return caused by core rod retreating because of the elasticity of the piston can be effectively avoided, and the pre-charging type catheter flusher is an innovative product.
Description
Technical field
This utility model relates to a kind of disposable use medical apparatus and instruments, particularly a kind of pre-filled catheter flusher for the flushing inlying catheter.
Background technology
In recent years, development along with medical apparatus and instruments manufacturing and medical skill, remaining needle, dark venous duct, central venous catheter etc. are kept somewhere in the medical apparatus and instruments of blood vessel and have been used widely, by clinical use, many negative issues when bringing convenience, have also been caused, such as: insert blood vessel and cause blood back, finally cause thrombosis or phenomenon of blocking easily, become an outstanding nursing difficult problem and transfusion risk, nurse inlying catheter must wash and malleation tube sealing handle the common recognition of industry after forming transfusion gradually on the clinical experience basis for this reason.Beginning to prepare flushing liquors such as heparin sodium aqua or sodium chloride solution voluntarily with syringe washes conduit, to preventing that thrombosis or obstruction that blood back causes from obtaining certain improvement, clogging obviously reduces, but new problem has appearred again, at these new problems, the experiment of calendar year 2001 shows, using the ampoule bottle of single dose and disposable syringe and syringe needle to prepare flushing liquor has 8% flushing liquor contaminated, these contaminated flushing liquors can cause the bacteremic generation of Secondary cases, for this reason, U.S. company BD has been developed pre-the dashing of commodity " happinesses of Posiflush good fortune come " by name and has been filled the formula catheter flusher, the technical scheme of this product is to adopt the mode of the laggard capable terminal sterilization of preliminary filling liquid to eliminate manual side effect of preparing flushing liquor, take the design of lock piston stop ring to overcome the relevant blood back of syringe, avoid forming thrombosis behind the washing pipe.The concept of the relevant blood back of so-called syringe is at first proposed by United States Medicine circle, the piston that refers to for the syringe of catheters irrigation is the rubber material, inject the piston distortion that can be squeezed of when flushing, when injecting the pressure release of end back, the part that piston is squeezed will resilience and produce one and cause blood to get back to region of no pressure in the conduit, it occurs in behind the terminal phase of intravenous injection in the catheters irrigation tube sealing process, and syringe piston is shifted this stage of syringe head end onto.
Employed pre-filled catheter flusher on the current market (patent No. is 201120246920.3), though designed locking device in order to prevent that core bar from retreating at irrigator, but structurally also there is certain defective, such as being not easy the demoulding during fabrication, tube locking and lever lock only cooperate to cause easily when bad injects liquid residue.
Summary of the invention
At above-mentioned situation, for overcoming the defective of prior art, the purpose of this utility model just provides a kind of pre-filled catheter flusher, can effectively solve existing disposable pre-filled catheter flusher injection and finish the back because of the blood back that the elastic recoil of piston itself causes, overcome the difficulty that exists in patent 201120246920.3 manufacturing process simultaneously.
The technical scheme of its solution is; comprise overcoat and core bar; one end of overcoat has the overcoat crimping; the other end of overcoat has the outer cone female adapter, and the draw-in groove step is arranged in the outer cone female adapter, and the piston that cooperates with outer casing inner wall is housed in the overcoat; one end of core bar is pressed hands; the other end of core bar has the two cantilever elastic clips corresponding with the draw-in groove step, and core bar is in piston is fixed on overcoat, and the outer cone female adapter on overcoat top links together through screw thread and external screw thread female cone protective cap.
This utility model structure is ingenious, and manufacturing process is simple, and is easy to use, can effectively prevent the syringe dependency blood back that causes core bar to retreat causing because of piston self elasticity, is the innovation on the pre-filled catheter flusher.
Description of drawings
Fig. 1 uses preceding view for this utility model.
Fig. 2 is the section of structure in this utility model use.
Section of structure when Fig. 3 finishes injection for this utility model.
Fig. 4 is the structure chart (enlarged drawing) that the two cantilever elastic clips of this utility model are realized self-locking.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Provided by Fig. 1 to Fig. 4; this utility model comprises overcoat and core bar; one end of overcoat 1 has overcoat crimping 2; the other end of overcoat 1 has outer cone female adapter 3; draw-in groove step 4 is arranged in the outer cone female adapter 3; the piston 5 that cooperates with overcoat 1 inwall is housed in the overcoat 1; one end of core bar 6 is pressed hands 7; the other end of core bar 6 has the two cantilever elastic clips 8 corresponding with draw-in groove step 4; core bar 6 is in piston 5 is fixed on overcoat 1, and the outer cone female adapter 3 on overcoat 1 top links together through screw thread and external screw thread female cone protective cap 9.
For guaranteeing result of use, said external screw thread female cone protective cap 9 is external screw thread, and outer cone female adapter 3 is female thread, and the internal taper hole 10 that cooperates with outer cone female adapter 3 is arranged in the external screw thread female cone protective cap 9.
The tapering of said outer cone female adapter 3 is 6:100.
Said outer cone female adapter 3 can be one with overcoat 1, also can link together for split type.
When this utility model uses; core bar 6 is slowly pushed ahead; when catheter flusher is finished when injecting; slightly firmly core bar 6 is pushed into forward in the external screw thread female cone protective cap 9; make the draw-in groove step 4 in the external screw thread female cone protective cap 9 block two cantilever elastic clips 8; core bar 6 can't be retreated, reached the purpose that prevents from causing core bar 6 to retreat causing because of piston 5 self elasticity the relevant blood back of syringe.
This utility model structure is ingenious, and manufacturing process is simple, and is easy to use, can effectively prevent the syringe dependency blood back that causes core bar to retreat causing because of piston self elasticity, is the innovation on the pre-filled catheter flusher.
Claims (4)
1. pre-filled catheter flusher; comprise overcoat and core bar; it is characterized in that; one end of overcoat (1) has overcoat crimping (2); the other end of overcoat (1) has outer cone female adapter (3); draw-in groove step (4) is arranged in the outer cone female adapter (3); the piston (5) that cooperates with overcoat (1) inwall is housed in the overcoat (1); one end of core bar (6) is pressed hands (7); the other end of core bar (6) has the two cantilever elastic clips (8) corresponding with draw-in groove step (4); core bar (6) is in piston (5) is fixed on overcoat (1), and the outer cone female adapter (3) on overcoat (1) top links together through screw thread and external screw thread female cone protective cap (9).
2. pre-filled catheter flusher according to claim 1; it is characterized in that; said external screw thread female cone protective cap (9) is external screw thread; outer cone female adapter (3) is female thread, and the internal taper hole (10) that cooperates with outer cone female adapter (3) is arranged in the external screw thread female cone protective cap (9).
3. pre-filled catheter flusher according to claim 1 is characterized in that, the tapering of said outer cone female adapter (3) is 6:100.
4. pre-filled catheter flusher according to claim 1 is characterized in that, said outer cone female adapter (3) can be one with overcoat (1), also can link together for split type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190770 CN203183396U (en) | 2013-04-16 | 2013-04-16 | Pre-charging type catheter flusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190770 CN203183396U (en) | 2013-04-16 | 2013-04-16 | Pre-charging type catheter flusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203183396U true CN203183396U (en) | 2013-09-11 |
Family
ID=49100301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320190770 Expired - Lifetime CN203183396U (en) | 2013-04-16 | 2013-04-16 | Pre-charging type catheter flusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203183396U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268045A (en) * | 2014-05-26 | 2016-01-27 | 上海康德莱企业发展集团股份有限公司 | Pre-charging type catheter flusher |
| CN110354363A (en) * | 2019-06-21 | 2019-10-22 | 广东省人民医院(广东省医学科学院) | A kind of eddy current type positive pressure wash syringe of controllable pulse frequency and flow |
| CN112426582A (en) * | 2020-04-23 | 2021-03-02 | 北京万生人和科技有限公司 | Flushing syringe |
| CN114768081A (en) * | 2022-03-31 | 2022-07-22 | 申莉莉 | Novel pre-filling catheter flusher |
-
2013
- 2013-04-16 CN CN 201320190770 patent/CN203183396U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268045A (en) * | 2014-05-26 | 2016-01-27 | 上海康德莱企业发展集团股份有限公司 | Pre-charging type catheter flusher |
| CN110354363A (en) * | 2019-06-21 | 2019-10-22 | 广东省人民医院(广东省医学科学院) | A kind of eddy current type positive pressure wash syringe of controllable pulse frequency and flow |
| CN110354363B (en) * | 2019-06-21 | 2024-06-25 | 广东省人民医院(广东省医学科学院) | Vortex type positive pressure flushing syringe capable of controlling pulse frequency and flow |
| CN112426582A (en) * | 2020-04-23 | 2021-03-02 | 北京万生人和科技有限公司 | Flushing syringe |
| CN114768081A (en) * | 2022-03-31 | 2022-07-22 | 申莉莉 | Novel pre-filling catheter flusher |
| CN114768081B (en) * | 2022-03-31 | 2023-08-22 | 重庆大学附属肿瘤医院 | Novel pre-filled catheter flusher |
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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: 467036 weft five road, Xincheng District, Henan, Pingdingshan Patentee after: SHENGGUANG MEDICAL INSTRUMENT CO.,LTD. Address before: 467036 weft five road, Xincheng District, Henan, Pingdingshan Patentee before: SHENGGUANG MEDICAL INSTRUMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |