CN201361314Y - Retaining needle capable of discharging gas automatically - Google Patents
Retaining needle capable of discharging gas automatically Download PDFInfo
- Publication number
- CN201361314Y CN201361314Y CNU2009200515873U CN200920051587U CN201361314Y CN 201361314 Y CN201361314 Y CN 201361314Y CN U2009200515873 U CNU2009200515873 U CN U2009200515873U CN 200920051587 U CN200920051587 U CN 200920051587U CN 201361314 Y CN201361314 Y CN 201361314Y
- Authority
- CN
- China
- Prior art keywords
- air
- retaining needle
- infusion connector
- exhaust cap
- infusion
- 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 - Lifetime
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Abstract
The utility model relates to a retaining needle capable of discharging air automatically. The retaining needle comprises an infusion connector; an air discharge cap is arranged on the infusion connector; and one end of the air discharge cap is provided with an air discharge pipe passing through the sealant of the infusion connector, and the other end is provided with a hydrophobic membrane. Before puncture with the retaining needle, the air needs not to be discharged, the air can exhaust automatically by utilizing the backflow of blood in the puncture, and then infusion can be performed after the air discharge cap is extracted. In the utility model, the air can exhaust automatically and completely in the puncture of the retaining needle.
Description
Technical field:
This utility model refers in particular to a kind of remaining needle.
Background technology:
Remaining needle is a kind of armarium that is used for repeatedly carrying out within a certain period of time infusion treatment.At first with medicinal liquid the air in the remaining needle is drained during use, will puncture then needle tubing and plastics remaining needle puncture together and enter vein, needle tubing is taken out, and the plastics remaining needle is stayed, and repeatedly infuse being used for.Before the retained needle puncture, must be earlier and transfusion system couple together, utilize the medicinal liquid deaeration.This process is not only operated inconvenience, and is difficult to air is drained fully, the gas in the infusion connector especially, and these gases just are brought in the human vas in infusion process probably.
Summary of the invention:
The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, provide a kind of simple in structure, safe and easy to use can self-bleeding remaining needle.
For achieving the above object, the technical scheme that this utility model provides is: a kind of can self-bleeding remaining needle, include infusion connector, on infusion connector, be connected with exhaust cap, this exhaust cap is provided with exhaustor, and the cutting tip of exhaustor just passes the fluid sealant of infusion connector.
In order further to improve this programme, done following improvement.
Be provided with hydrophobic membrane in described exhaust cap outer end.
After adopting technique scheme, when medical personnel utilize remaining needle to puncture, blood enters the remaining needle infusion channel, gas in the passage is in infusion connector is forced the intake and exhaust medicated cap, and through the hydrophobic membrane discharge, the characteristic of the hydrophobic membrane of this programme only allows the air process and does not allow the liquid process, so this process blood can be stopped by hydrophobic membrane, prevent to flow out, at this moment pull out exhaust cap, all do not had air in the passage of whole remaining needle, lunged transfusion needle again and infuse, so just effectively avoided leaving in the remaining needle air.
Description of drawings:
Fig. 1 is the structural representation of this utility model remaining needle;
Fig. 2 is the sketch map after the exhaust cap of this utility model remaining needle pulls out.
The specific embodiment:
Now in conjunction with the accompanying drawings 1 and accompanying drawing 2 elaborate this utility model:
The remaining needle of present embodiment is connected with exhaust cap 2 on infusion connector 1, this exhaust cap 2 is provided with exhaustor 3, the cutting tip of exhaustor 3 just passes the fluid sealant 4 of infusion connector 2, be provided with hydrophobic membrane 5 in the outer end of exhaust cap 2, the physical characteristic of this hydrophobic membrane 5 only allows air to pass through and does not allow liquid to pass through.
Exhaust cap 2 is pre-installed on the infusion connector 1, and pierces through the fluid sealant 4 of infusion connector 1 just, and because the hydrophobic membrane 5 of exhaust cap 2 is can be gas-pervious, makes whole remaining needle infusion channel keep aeration status.When medical personnel used retained needle puncture, blood refluxed by the remaining needle infusion channel, and the air in the infusion channel is discharged automatically simultaneously.Flow to the inner chamber of exhaust cap 2 by exhaustor 3 when blood.At last, because blood can't see through hydrophobic membrane 5, blood all occupies the inner chamber of exhaust cap 2, stop to flow, and air is all discharged.
After finishing puncture, directly pull out exhaust cap 2.Fluid sealant 4 on the infusion connector 1 automatically replies original state, stop blood to flow out, and inner air all drains.Directly connecting transfusion system can infuse.For exhaust cap 2, because exhaustor 3 is ensconced inside, the accidental injury incident can not take place after extracting yet, simultaneously, exhaust cap 2 inner open ended blood are few, do not have blood and flow out.
This utility model makes medical personnel need not aerofluxus before using remaining needle, but directly puncture, the air in the infusion channel drains automatically simultaneously, directly pulls out exhaust cap 2 then and gets final product, and is easy to operate, quick, and avoided producing the possibility of air embolism.
The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to this utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.
Claims (2)
- One kind can self-bleeding remaining needle, include infusion connector (1), it is characterized in that: be connected with exhaust cap (2) on infusion connector (1), this exhaust cap (2) is provided with exhaustor (3), and the cutting tip of exhaustor (3) just passes the fluid sealant (4) of infusion connector (1).
- 2. according to claim 1 a kind of can self-bleeding remaining needle, it is characterized in that: be provided with hydrophobic membrane (5) in described exhaust cap (2) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200515873U CN201361314Y (en) | 2009-02-24 | 2009-02-24 | Retaining needle capable of discharging gas automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200515873U CN201361314Y (en) | 2009-02-24 | 2009-02-24 | Retaining needle capable of discharging gas automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361314Y true CN201361314Y (en) | 2009-12-16 |
Family
ID=41471970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200515873U Expired - Lifetime CN201361314Y (en) | 2009-02-24 | 2009-02-24 | Retaining needle capable of discharging gas automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361314Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007385A (en) * | 2013-01-05 | 2013-04-03 | 广州阳普医疗科技股份有限公司 | Secure type indwelling and shielding cap |
| CN103933636A (en) * | 2014-04-17 | 2014-07-23 | 高宏 | Venous indwelling needle |
| CN103990226A (en) * | 2014-06-10 | 2014-08-20 | 倪新华 | Exhaust bacterium blocking cap |
| CN105435331A (en) * | 2015-12-12 | 2016-03-30 | 上海宝舜医疗器械有限公司 | Safety indwelling needle |
| WO2018120873A1 (en) * | 2016-12-27 | 2018-07-05 | 上海交通大学 | Device for preventing contamination of positive-pressure connector of indwelling needle and method based on same |
| CN109908431A (en) * | 2019-04-08 | 2019-06-21 | 深圳安特医疗股份有限公司 | Remaining needle and infusion device |
| CN110812692A (en) * | 2018-08-07 | 2020-02-21 | 贝克顿·迪金森公司 | Catheter system |
| CN114870166A (en) * | 2016-08-31 | 2022-08-09 | 广东龙心医疗器械有限公司 | Exhaust joint |
-
2009
- 2009-02-24 CN CNU2009200515873U patent/CN201361314Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007385A (en) * | 2013-01-05 | 2013-04-03 | 广州阳普医疗科技股份有限公司 | Secure type indwelling and shielding cap |
| CN103007385B (en) * | 2013-01-05 | 2014-07-16 | 广州阳普医疗科技股份有限公司 | Secure type indwelling and shielding cap |
| CN103933636A (en) * | 2014-04-17 | 2014-07-23 | 高宏 | Venous indwelling needle |
| CN103990226A (en) * | 2014-06-10 | 2014-08-20 | 倪新华 | Exhaust bacterium blocking cap |
| CN105435331A (en) * | 2015-12-12 | 2016-03-30 | 上海宝舜医疗器械有限公司 | Safety indwelling needle |
| CN114870166A (en) * | 2016-08-31 | 2022-08-09 | 广东龙心医疗器械有限公司 | Exhaust joint |
| CN114870166B (en) * | 2016-08-31 | 2023-06-20 | 广东龙心医疗器械有限公司 | Exhaust joint |
| WO2018120873A1 (en) * | 2016-12-27 | 2018-07-05 | 上海交通大学 | Device for preventing contamination of positive-pressure connector of indwelling needle and method based on same |
| CN110812692A (en) * | 2018-08-07 | 2020-02-21 | 贝克顿·迪金森公司 | Catheter system |
| CN110812692B (en) * | 2018-08-07 | 2022-10-04 | 贝克顿·迪金森公司 | Catheter system |
| CN109908431A (en) * | 2019-04-08 | 2019-06-21 | 深圳安特医疗股份有限公司 | Remaining needle and infusion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG BAIHE MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FOSHAN AIDI MEDICAL DEVICES CO., LTD. Effective date: 20130814 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528222 FOSHAN, GUANGDONG PROVINCE TO: 528225 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130814 Address after: 528225 No. 89 Taoyuan East Road, Nanhai District, Guangdong, Shishan, Foshan Patentee after: Guangzhou Baihe Medical Technology Co., Ltd. Address before: 528222, Guangdong, Foshan Province Nanhai District lion town Taoyuan West Road Software Technology Park Lily company Patentee before: Foshan Aidi Medical Devices Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 528225, Guangdong, Shishan Province, Taoyuan East Road, Foshan, No. 2, 89 (3, 4) floor, 3, 4 (3-6) building Patentee after: GUANGDONG BAIHE MEDICAL TECHNOLOGY CO., LTD. Address before: 528225 No. 89 Taoyuan East Road, Nanhai District, Guangdong, Shishan, Foshan Patentee before: Guangzhou Baihe Medical Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |