CN202724377U - Entry needle guard - Google Patents
Entry needle guard Download PDFInfo
- Publication number
- CN202724377U CN202724377U CN 201220295937 CN201220295937U CN202724377U CN 202724377 U CN202724377 U CN 202724377U CN 201220295937 CN201220295937 CN 201220295937 CN 201220295937 U CN201220295937 U CN 201220295937U CN 202724377 U CN202724377 U CN 202724377U
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- CN
- China
- Prior art keywords
- needle
- needle guard
- cannelure
- slide block
- distance
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- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An entry needle guard comprises a needle body, a needle guard matched and connected with the needle body in a sleeved mode, and the needle guard is a hollow tube body, wherein an outlet of a needle head outlet is arranged at one end of the needle guard. A sliding groove is arranged in the tube body in the axial direction. The sliding groove comprises a longitudinal groove and a horizontal groove, wherein the longitudinal groove is mutually communicated with the horizontal groove. A backstop part is arranged inside the horizontal groove lengthways. The backstop part divides the horizontal groove into a communicating area communicated with the longitudinal groove and a sealed locking area. The length of the longitudinal groove is larger than or equal to the distance between the sliding block and a needle sharp, and the distance between the sliding block and the needle sharp is larger than the distance between one end of the longitudinal groove and the outlet of the needle head, wherein the end of the longitudinal groove is close to the outlet of the needle head. A limiting protrusion is arranged on the broadside of one end of the longitudinal groove, wherein the end of the longitudinal groove is close to the communicating area. The technical problems that in the process of transporting or before using an existing entry needle guard device, the existing entry needle guard device can be removed from the entry needle guard easily and the needle body is polluted are solved. Therefore an improved entry needle guard is provided on the basis of the existing entry needle guard device.
Description
Technical field
This utility model relates to a kind of injection needle assembly, specifically a kind of injection needle guard for entry needle.
Background technology
At present, the entry needle that medical industry is used all is conventional structure, namely is comprised of syringe, the push rod that is arranged on syringe inside and syringe needle; For disposable entry needle, after injection, need to use professional spryinge destroying device that needle section is divided into marketing and ruin, to prevent the generation of secondary pollution.But even if use spryinge destroying device, medical personnel are also very easily scratched by syringe needle after injection, cause viral infection, can't medical personnel's safety effectively be ensured.
In order to solve the problems of the technologies described above, safety needle sleeve device of the prior art is when implementing injection, and the self-align recess of the protuberance of base unit shifts out, through transverse part, turning point and change in the chute and move towards the syringe needle direction is until when moving to the front end stopper point, syringe needle exposes fully, injects.Inject complete after, the tube unit contrary operation, protuberance moves towards the direction away from syringe needle along chute, thereby finally moves to locking square groove, locked needle.The initial condition of the entry needle that dispatches from the factory is that syringe needle is hidden in the safe needle sleeve, this moment, protuberance was positioned at described groove to the square location indentations of section, but because this location indentations and described chute are directly to being the groove that is communicated with between the section, so before use, be easy to owing to casual touch cause protuberance break away from described square location indentations slide to along described groove to section described chute directly to section, thereby entry needle is opened, like this so that syringe needle exposes the direct contact external world, syringe needle just is easy to contaminated so, when in unwitting situation, having used this contaminated syringe needle, may bring unnecessary infection to the patient.
The utility model content
For this reason, technical problem to be solved in the utility model be existing entry needle be enclosed within transportation or use before easily because external force is touched so that the protuberance of entry needle from groove to section slippage, so that thereby the entry needle syringe needle exposes contaminated pinhead, and then provide a kind of improved injection needle guard for entry needle.
For solving the problems of the technologies described above, a kind of injection needle guard of the present utility model comprises needle body, and described needle body comprises the fixture of syringe needle and fixing described syringe needle, and described fixture has the socket part that is socketed with injection tube away from syringe needle one end; With
With the needle guard that described needle body socket cooperates, described needle guard is the hollow tube that an end is provided with the syringe needle outlet, axially offers chute on described body, and this chute comprises cannelure and the transverse groove that is interconnected; Be vertically arranged with the stopper section in described transverse groove, described stopper section is divided into the connection district that is communicated with described cannelure and the lock room of sealing with described transverse groove; The length of described cannelure is more than or equal to the distance of described slide block to needle point, and described slide block exports the distance of the extremely described syringe needle outlet of an end near syringe needle greater than described cannelure to the distance of needle point; Described needle body is provided with slide block near described injection tube one end, and described slide block is suitable for sliding along described chute;
Side at the close described connection district of described cannelure one end is provided with restriction protrusion.
Described restriction protrusion is semicircle along the cross section of described needle guard axis.
The width of described restriction protrusion is half of cannelure width.
Described fixture exports the distance of the extremely described syringe needle outlet of an end near syringe needle less than described cannelure to the distance of described slide block near an end of described needle point.
The width of described chute equals the width of described slide block.
Technique scheme of the present utility model has the following advantages compared to existing technology,
A kind of injection needle guard described in the utility model comprises needle body, and described needle body comprises the fixture of syringe needle and fixing described syringe needle, and described fixture has the socket part that is socketed with injection tube away from syringe needle one end; With the needle guard that cooperates with described needle body socket, described needle guard is the hollow tube that an end is provided with the syringe needle outlet, axially offers chute on described body, and this chute comprises cannelure and the transverse groove that is interconnected; Be vertically arranged with the stopper section in described transverse groove, described stopper section is divided into the connection district that is communicated with described cannelure and the lock room of sealing with described transverse groove; The length of described cannelure is more than or equal to the distance of described slide block to needle point, and described slide block exports the distance of the extremely described syringe needle outlet of an end near syringe needle greater than described cannelure to the distance of needle point; Side at the close described connection district of described cannelure one end is provided with restriction protrusion, therefore the limited projection of described needle body is stuck in the connection district of transverse groove, there is not certain strength to go to break through described restriction protrusion, needle body be impossible own from the connection district of transverse groove out, thereby guarantee that the needle body of injecting needle guard can ownly before transportation or use not skid off along long chute, guarantees to inject needle guard not contaminated.
Description of drawings
For content of the present utility model is more likely to be clearly understood, the below is described in further detail this utility model, wherein according to specific embodiment of the utility model also by reference to the accompanying drawings
Fig. 1 is injection needle guard schematic diagram described in the utility model;
Fig. 2 is that injection needle guard described in the utility model cooperates schematic diagram with entry needle.
Reference numeral is expressed as among the figure: the 1-needle body, and the 11-slide block, the 12-needle point, an end of the close needle point of 13-fixture, the 3-needle guard, the 311-cannelure, the 312-transverse groove, 312a-is communicated with the district, 312b-lock room, 312c-stopper section, 312d-restriction protrusion, the outlet of 32-syringe needle.
The specific embodiment
Figure 1 shows that the described injection needle guard 3 of the present embodiment, comprise needle body 1, described needle body 1 comprises the fixture of syringe needle and fixing described syringe needle, and described fixture has the socket part that is socketed with injection tube away from syringe needle one end; With the needle guard 3 that cooperates with described needle body 1 socket, described needle guard 3 is the hollow tube that an end is provided with syringe needle outlet 32, axially offers chute on described body, and this chute comprises cannelure 311 and the transverse groove 312 that is interconnected; Be vertically arranged with stopper section 312c in described transverse groove 312, described stopper section 312c is divided into the connection district 312a that is communicated with described cannelure 311 and the lock room 312b of sealing with described transverse groove 312; The length of described cannelure 311 is more than or equal to the distance of described slide block 11 to needle point 12, and described slide block 11 exports the distance of the extremely described syringe needle outlet 32 of 32 1 ends near syringe needle greater than described cannelure 311 to the distance of needle point 12; Described needle body 1 is provided with slide block 11 near described injection tube one end, and described slide block 11 is suitable for sliding along described chute; Side at described cannelure 311 close described connection district 312a one ends is provided with restriction protrusion 312d.Arrange in the present embodiment described restriction protrusion 312d along the cross section of described needle guard 3 axis for semicircle.The width of described chute equals the width of described slide block 11.
Further, can before injection, carry out the spacing syringe needle that do not allow to described slide block 11 in order to ensure described slide block 11 and skid off described needle guard 3, slide block 11 is injected by described cannelure 311 in use, the present embodiment is on the basis of above-described embodiment, and the width that described restriction protrusion 312d is set is half of cannelure 311 width.Described fixture exports the distance of the extremely described syringe needle outlet 32 of 32 1 ends near syringe needle less than described cannelure 311 to the distance of described slide block 11 near an end 13 of described needle point.
Before the use, described slide block 11 is limited in the described transverse groove 312 relative with described lock room 312b by described restriction protrusion 312d; When needing to use, firmly twist described injection tube 2, the described slide block 11 that described injection tube 2 drives on the described needle body 1 is broken through the restriction of described restriction protrusion 312d, thereby can release needle body 1 in described cannelure 311 interior slips, is used for injection; To be injected complete after, pulling injection tube 2 drives described needle body 1 and slides to transverse part, props up the backward described stopper section 312c of transverse part firmly, break through described stopper section 312c after described slide block 11 snap in the described lock room 312b, thereby realize described entry needle is blocked, can not be used again.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of this utility model creation.
Claims (5)
1. inject needle guard for one kind, comprising: needle body (1), described needle body (1) comprise the fixture of syringe needle and fixing described syringe needle, and described fixture has the socket part that is socketed with injection tube away from syringe needle one end; With
The needle guard (3) that cooperates with described needle body (1) socket, described needle guard (3) is the hollow tube that an end is provided with syringe needle outlet (32), axially offer chute on described body, this chute comprises cannelure (311) and the transverse groove (312) that is interconnected; Be vertically arranged with stopper section (312c) in described transverse groove (312), described stopper section (312c) is divided into the connection district (312a) that is communicated with described cannelure (311) and the lock room (312b) of sealing with described transverse groove (312); The length of described cannelure (311) is more than or equal to the distance of described slide block (11) to needle point (12), and described slide block (11) exports the distance of (32) to described syringe needle near syringe needle outlet (32) one ends greater than described cannelure (311) to the distance of needle point (12); Described needle body (1) is provided with slide block (11) near described injection tube one end, and described slide block (11) is suitable for sliding along described chute;
It is characterized in that, be provided with restriction protrusion (312d) at described cannelure (311) near the side of described connection district (312a) end.
2. described injection needle guard according to claim 1 is characterized in that, described restriction protrusion (312d) is semicircle along the cross section of described needle guard axis.
3. described injection needle guard according to claim 2 is characterized in that, the width of described restriction protrusion (312d) is half of cannelure (311) width.
4. described injection needle guard according to claim 3, it is characterized in that, described fixture exports the distance of the extremely described syringe needle outlet of an end (32) of (32) near syringe needle less than described cannelure (311) to the distance of described slide block (11) near an end (13) of described needle point.
5. arbitrary described injection needle guard is characterized in that according to claim 1-4, and the width of described chute equals the width of described slide block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220295937 CN202724377U (en) | 2012-06-21 | 2012-06-21 | Entry needle guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220295937 CN202724377U (en) | 2012-06-21 | 2012-06-21 | Entry needle guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202724377U true CN202724377U (en) | 2013-02-13 |
Family
ID=47650134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220295937 Expired - Lifetime CN202724377U (en) | 2012-06-21 | 2012-06-21 | Entry needle guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202724377U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061420A1 (en) * | 2017-09-30 | 2019-04-04 | 群康生技股份有限公司 | Safety needle and safety needle device |
| CN113474024A (en) * | 2018-10-25 | 2021-10-01 | 夏普斯技术有限公司 | Ultra-low waste syringe and injector system that automatically and passively keep a syringe safe during an injection |
-
2012
- 2012-06-21 CN CN 201220295937 patent/CN202724377U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061420A1 (en) * | 2017-09-30 | 2019-04-04 | 群康生技股份有限公司 | Safety needle and safety needle device |
| CN111132714A (en) * | 2017-09-30 | 2020-05-08 | 群康生技股份有限公司 | Safety needle and safety needle device |
| US11554223B2 (en) | 2017-09-30 | 2023-01-17 | Cc Biotechnology Corporation | Safety needle and safety needle device |
| CN113474024A (en) * | 2018-10-25 | 2021-10-01 | 夏普斯技术有限公司 | Ultra-low waste syringe and injector system that automatically and passively keep a syringe safe during an injection |
| CN113474024B (en) * | 2018-10-25 | 2023-10-20 | 夏普斯技术有限公司 | Ultra low waste syringe and injector system for automatically and passively maintaining syringe safety during injection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210205 Address after: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee after: Henan Shuguang Jianshi Industrial Development Co.,Ltd. Address before: Luohe City, Henan province 462331 Yuanhui District Riverside Metro Xiangjiang Road Patentee before: HENAN SHUGUANG JIANSHI MEDICAL EQUIPMENT GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |