CN204219516U - high pressure remaining needle - Google Patents
high pressure remaining needle Download PDFInfo
- Publication number
- CN204219516U CN204219516U CN201420585294.4U CN201420585294U CN204219516U CN 204219516 U CN204219516 U CN 204219516U CN 201420585294 U CN201420585294 U CN 201420585294U CN 204219516 U CN204219516 U CN 204219516U
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- CN
- China
- Prior art keywords
- conduit
- high pressure
- contact pin
- pin end
- described conduit
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Abstract
This utility model discloses a kind of high pressure remaining needle, comprise and can be retained in endovascular conduit, puncture needle, infusion connector and connecting line, the side of described conduit is communicated with described infusion connector by described connecting line, described conduit has the contact pin end inserted for puncture needle, and prick to penetrating end in patient body in order to wear, the inner chamber of described conduit is provided with the plug arranged near described contact pin end, described puncture needle is in order to pass described plug when puncturing from the contact pin end of described conduit, and stretch in described conduit and together puncture with described conduit, the inner chamber of described conduit is also installed with the high pressure loop between described plug and described contact pin end, described high pressure loop is in order to stop that described plug ejects from the inner chamber of described conduit from described contact pin end, thus, when infusing, even if the pressure ratio of the medicinal liquid that described transfusion device exports is larger, described plug also not easily ejects from described conduit from described acupuncture treatment end.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of high pressure remaining needle.
Background technology
Venous detaining needle is also known as venous catheter needle, the building block of core comprises the conduit that can be retained in endovascular softness, stainless puncture needle, infusion connector and connecting line, the side of described conduit is communicated with described infusion connector by described connecting line, described conduit has the contact pin end that inserts for puncture needle and wears to be pricked to penetrating end in patient body, the inner chamber of described conduit is provided with plug near described contact pin end, when puncturing, described puncture needle is inserted through described plug from described contact pin end, and stretch in described conduit, Ink vessel transfusing is punctured into together with described conduit, when after the whole intravasation of described conduit, withdraw out described puncture needle, described plug restores to the original state and described insertion end is blocked under natural resiliency masterpiece is exerted oneself, described infusion connector can connect transfusion device, medicinal liquid from described transfusion device transports to the Ink vessel transfusing of patient from the end that penetrates of described conduit.
In Clinical practice, be not difficult to find, when the pressure ratio of the medicinal liquid inputted from described transfusion device is larger, described plug may eject from the inner chamber of described conduit from described contact pin end, and described remaining needle can not be used.
Utility model content
Main purpose of the present utility model is to solve when the pressure ratio of infusing is larger, the problem that plug may eject from the contact pin end of conduit.
For arriving above-mentioned technical purpose, this utility model provides a kind of high pressure remaining needle, comprise and can be retained in endovascular conduit, puncture needle, infusion connector and connecting line, the side of described conduit is communicated with described infusion connector by described connecting line, described conduit has the contact pin end inserted for puncture needle, and prick to penetrating end in patient body in order to wear, the inner chamber of described conduit is provided with the plug arranged near described contact pin end, described puncture needle is in order to pass described plug when puncturing from the contact pin end of described conduit, and stretch in described conduit and together puncture with described conduit, the inner chamber of described conduit is also installed with the high pressure loop between described plug and described contact pin end, described high pressure loop is in order to stop that described plug ejects from the inner chamber of described conduit from described contact pin end.
Preferably, achieved a fixed connection by interference engagement between the inner chamber of described high pressure loop and described conduit.
Preferably, the position of the corresponding described high pressure loop of tube wall of described conduit offers perforation, and described perforation is with bonding with the inwall of described conduit by described high pressure loop by glue for glue enters.
The high pressure remaining needle that this utility model provides, comprise and can be retained in endovascular conduit, puncture needle, infusion connector and connecting line, the side of described conduit is communicated with described infusion connector by described connecting line, described conduit has the contact pin end inserted for puncture needle, and prick to penetrating end in patient body in order to wear, the inner chamber of described conduit is provided with the plug arranged near described contact pin end, described puncture needle is in order to pass described plug when puncturing from the contact pin end of described conduit, and stretch in described conduit and together puncture with described conduit, the inner chamber of described conduit is also installed with the high pressure loop between described plug and described contact pin end, described high pressure loop is in order to stop that described plug ejects from the inner chamber of described conduit from described contact pin end, thus, when infusing, even if the pressure ratio of the medicinal liquid that described transfusion device exports is larger, described plug also not easily ejects from described conduit from described acupuncture treatment end.
Accompanying drawing explanation
The structural representation of one embodiment of the high pressure remaining needle that Fig. 1 provides for this utility model;
Fig. 2 is the broken section structural representation of the conduit of the high pressure remaining needle shown in Fig. 1.
The realization of this utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
The technical solution of the utility model is further illustrated below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
Refer to Fig. 1 to Fig. 2, in one embodiment of the high pressure remaining needle provided in this utility model, described high pressure remaining needle 100 comprises can be retained in endovascular conduit 1, puncture needle 2, infusion connector 3 and connecting line 4, the side of described conduit 1 is communicated with described infusion connector 3 by described connecting line 4, described conduit 1 has the contact pin end 11 inserted for puncture needle 2, and prick to penetrating end 12 in patient body in order to wear, the inner chamber of described conduit 1 is provided with the plug 13 arranged near described contact pin end 11, described puncture needle 2 passes described plug 13 in order to the contact pin end 11 when puncturing from described conduit 1, and stretch in described conduit 1 and together puncture with described conduit 1, the inner chamber of described conduit 1 is also installed with the high pressure loop 14 between described plug 13 and described contact pin end 11, described high pressure loop 14 is in order to stop that described plug 13 ejects from the inner chamber of described conduit 1 from described contact pin end 11.Thus, when infusing, even if the pressure ratio of the medicinal liquid of described transfusion device output is comparatively large, described plug 13 also not easily ejects from described conduit 1 from described acupuncture treatment end.
In the present embodiment, achieved a fixed connection by interference engagement between described high pressure loop 14 and the inner chamber of described conduit 1.For strengthening connection reliability between described high pressure loop 14 and the inner chamber of described conduit 1, the position of the corresponding described high pressure loop 14 of tube wall of described conduit 1 offers perforation 15, and described perforation 15 is with bonding with the inwall of described conduit 1 by described high pressure loop 14 by glue for glue enters.
These are only preferred embodiment of the present utility model; not thereby its scope of the claims is limited; every utilize this utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a high pressure remaining needle, comprise and can be retained in endovascular conduit, puncture needle, infusion connector and connecting line, the side of described conduit is communicated with described infusion connector by described connecting line, described conduit has the contact pin end inserted for puncture needle, and prick to penetrating end in patient body in order to wear, the inner chamber of described conduit is provided with the plug arranged near described contact pin end, described puncture needle is in order to pass described plug when puncturing from the contact pin end of described conduit, and stretch in described conduit and together puncture with described conduit, it is characterized in that, the inner chamber of described conduit is also installed with the high pressure loop between described plug and described contact pin end, described high pressure loop is in order to stop that described plug ejects from the inner chamber of described conduit from described contact pin end.
2. high pressure remaining needle as claimed in claim 1, be is characterized in that, achieved a fixed connection between the inner chamber of described high pressure loop and described conduit by interference engagement.
3. high pressure remaining needle as claimed in claim 2, is characterized in that, the position of the corresponding described high pressure loop of tube wall of described conduit offers perforation, and described perforation is with bonding with the inwall of described conduit by described high pressure loop by glue for glue enters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585294.4U CN204219516U (en) | 2014-10-11 | 2014-10-11 | high pressure remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585294.4U CN204219516U (en) | 2014-10-11 | 2014-10-11 | high pressure remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204219516U true CN204219516U (en) | 2015-03-25 |
Family
ID=52917668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585294.4U Active CN204219516U (en) | 2014-10-11 | 2014-10-11 | high pressure remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204219516U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854120A (en) * | 2015-05-16 | 2016-08-17 | 广东龙心医疗器械有限公司 | Remaining needle rubber plug locking mechanism |
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
-
2014
- 2014-10-11 CN CN201420585294.4U patent/CN204219516U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854120A (en) * | 2015-05-16 | 2016-08-17 | 广东龙心医疗器械有限公司 | Remaining needle rubber plug locking mechanism |
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 Jinhui Road, Pingshan New District, Shenzhen, Guangdong Province, No. 18 Patentee after: Shenzhen ante medical Limited by Share Ltd Address before: 518052 Jinhui Road, Pingshan New District, Shenzhen, Guangdong Province, No. 18 Patentee before: Shenzhen Ante Gaoke Industrial Co., Ltd. |
|
| CP03 | Change of name, title or address |