CN208741096U - Exempt to damage syringe needle - Google Patents
Exempt to damage syringe needle Download PDFInfo
- Publication number
- CN208741096U CN208741096U CN201820323852.8U CN201820323852U CN208741096U CN 208741096 U CN208741096 U CN 208741096U CN 201820323852 U CN201820323852 U CN 201820323852U CN 208741096 U CN208741096 U CN 208741096U
- Authority
- CN
- China
- Prior art keywords
- needle
- interior
- backshank
- point
- syringe
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Exempt to damage syringe needle, including interior needle and outer needle the utility model discloses one kind, outer needle guard is on interior needle；Interior needle includes interior needle point and interior backshank, and interior needle point round blunt, for interior backshank for connecting syringe, the surface of interior backshank is provided with a circle retainer ring；Outer needle includes outer needle point and outer backshank, and outer needle point is sharp, and the internal diameter of outer needle point is not less than the outer diameter of interior needle point；The internal diameter of outer backshank is not less than the outer diameter of retainer ring, and the inner wall of outer backshank is provided with multiple flexible stuck points；The syringe needle of the utility model is combined type syringe needle, and before acupuncture treatment, interior needle ensconces the inside of outer needle, and medical staff penetrates tissue using sharp outer needle；After syringe needle enters tissue, the outer needle of post-tensioning makes the stuck point of elasticity cross retainer ring, exposes the interior needle of round blunt, for medical staff in subsequent adjustment needle position, the interior needle of round blunt no longer injures tissue, while avoiding syringe needle by tissue blockage.
Description
Technical field
The utility model relates to medical instruments field more particularly to it is a kind of with exempt from damage feature for puncturing or infuse
The combined type syringe needle penetrated.
Background technique
The syringe needle of the prior art is sharp, after syringe needle enters tissue, if the position of adjustment syringe needle easily causes additional damage
Wound；Such as: it is easy to damage articular cartilage when joint puncture, when abdominocentesis is easy to damage abdominal viscera.On the other hand, syringe needle
Into after tissue, sharp syringe needle may be caused to inject or sample difficult by tissue blockage.
Utility model content
The technical problem to be solved by the present invention is to provide it is a kind of it is novel exempt to damage syringe needle, avoid syringe needle to human body group
Weave into secondary injury.
In order to solve the above technical problems, the technical solution adopted by the utility model is: one kind is exempted to damage syringe needle, including interior needle
With outer needle, outer needle guard is on interior needle；
Interior needle includes interior needle point and interior backshank, and interior needle point round blunt, for connecting syringe, the surface of interior backshank is set interior backshank
It is equipped with a circle retainer ring；
Outer needle includes outer needle point and outer backshank, and outer needle point is sharp, and the internal diameter of outer needle point is not less than the outer diameter of interior needle point；Outer needle
The internal diameter of tail is not less than the outer diameter of retainer ring, and the inner wall of outer backshank is provided with multiple flexible stuck points；
The syringe needle of the utility model is combined type syringe needle, and before acupuncture treatment, interior needle ensconces the inside of outer needle, medical staff
Tissue is penetrated using sharp outer needle；After syringe needle enters tissue, the outer needle of post-tensioning crosses the stuck point of elasticity
Retainer ring exposes the interior needle of round blunt, and for medical staff in subsequent adjustment needle position, the interior needle of round blunt no longer injures human body group
It knits, while avoiding syringe needle by tissue blockage.
Specifically, the quantity of the stuck point is four, all stuck points are symmetrical around the central axes of outer needle.
The utility model has the advantages that the syringe needle of the utility model can hide sharp outer needle after being pierced into tissue, circle is utilized
Blunt interior needle carries out injection or sampling operation, avoids causing tissue secondary damage and syringe needle to block.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 syringe needle of embodiment (before acupuncture treatment).
Fig. 2 is the structural schematic diagram of 1 syringe needle of embodiment (after acupuncture treatment).
Fig. 3 is the part drawing of interior needle.
Fig. 4 is the part drawing of outer needle.
Fig. 5 is the A-A cross-sectional view of Fig. 4.
Wherein: 1, interior needle；11, interior needle point；12, interior backshank；13, retainer ring；2, outer needle；21, outer needle point；22, outer backshank；
23, stuck point.
Specific embodiment
The utility model is described in further detail With reference to embodiment.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment exempts to damage syringe needle, including interior needle 1 and outer needle 2,2 sets of outer needle in interior needle 1
On；
As shown in figure 3, including interior needle point 11 and interior backshank 12, interior 11 round blunt of needle point, interior backshank 12 is used for the structure of interior needle 1
Syringe is connected, the surface of interior backshank 12 is provided with a circle retainer ring 13；
As shown in figure 4, include outer needle point 21 and outer backshank 22, outer needle point 21 is sharp for the structure of outer needle 2, outer needle point 21 it is interior
Diameter is not less than the outer diameter of interior needle point 11；The internal diameter of outer backshank 22 is not less than the outer diameter of retainer ring 13；As shown in figure 5, outer backshank 22
There are four flexible stuck point 23, four stuck points 23 to be evenly arranged around the central axes of outer needle 2 for inner wall setting.
Before acupuncture treatment, interior needle 1 ensconces the inside of outer needle 2, specific as shown in Figure 1, medical staff is using sharp outer
Needle 2 penetrates tissue；After syringe needle enters tissue, the outer needle 2 of post-tensioning can make the stuck point 23 of elasticity cross retainer ring
13, the interior needle 1 of round blunt is exposed, it is specific as shown in Figure 2；At this point, if medical staff adjusts the position of entire syringe needle, round blunt
Interior needle 1 will not cause secondary injury to tissue, be highly suitable for the medical treatments such as joint puncture, abdominocentesis.
Although the embodiments of the present invention is illustrated in specification, these embodiments are intended only as mentioning
Show, should not limit the protection scope of the utility model.Various omissions are carried out in the range of not departing from the utility model aims, are set
It changes and change should be included in the protection scope of the utility model.
Claims (2)
1. one kind is exempted to damage syringe needle, it is characterised in that: including interior needle and outer needle, outer needle guard is on interior needle；
Interior needle includes interior needle point and interior backshank, and interior needle point round blunt, for connecting syringe, the surface of interior backshank is provided with interior backshank
One circle retainer ring；
Outer needle includes outer needle point and outer backshank, and outer needle point is sharp, and the internal diameter of outer needle point is not less than the outer diameter of interior needle point；
The internal diameter of outer backshank is not less than the outer diameter of retainer ring, and the inner wall of outer backshank is provided with multiple flexible stuck points.
2. according to claim 1 exempt to damage syringe needle, it is characterised in that: the quantity of the stuck point is four, all stuck points
Central axes around outer needle are symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323852.8U CN208741096U (en) | 2018-03-09 | 2018-03-09 | Exempt to damage syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323852.8U CN208741096U (en) | 2018-03-09 | 2018-03-09 | Exempt to damage syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208741096U true CN208741096U (en) | 2019-04-16 |
Family
ID=66051540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820323852.8U Expired - Fee Related CN208741096U (en) | 2018-03-09 | 2018-03-09 | Exempt to damage syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208741096U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315530A (en) * | 2020-12-23 | 2021-02-05 | 庞业光 | Novel operation suture needle |
| CN113975483A (en) * | 2021-11-03 | 2022-01-28 | 四川大学 | Syringe for joint cavity |
-
2018
- 2018-03-09 CN CN201820323852.8U patent/CN208741096U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315530A (en) * | 2020-12-23 | 2021-02-05 | 庞业光 | Novel operation suture needle |
| CN112315530B (en) * | 2020-12-23 | 2022-07-29 | 庞业光 | Surgical suture needle |
| CN113975483A (en) * | 2021-11-03 | 2022-01-28 | 四川大学 | Syringe for joint cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |