CN219229888U - Blood taking needle cap - Google Patents
Blood taking needle cap Download PDFInfo
- Publication number
- CN219229888U CN219229888U CN202222946591.4U CN202222946591U CN219229888U CN 219229888 U CN219229888 U CN 219229888U CN 202222946591 U CN202222946591 U CN 202222946591U CN 219229888 U CN219229888 U CN 219229888U
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- Prior art keywords
- cap
- hole
- needle
- blood taking
- flat hole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a blood taking needle cap which is in fit connection with a blood taking needle shell, an excitation sleeve in the shell and a needle body, wherein the top of the blood taking needle body is provided with the needle cap, the needle cap is provided with a back-off, the outer end side of the cap is provided with an inner round hole, the bottom of the inner round hole is provided with an inner flat hole with the same outline as the front end of the needle cap, two sides of the inner flat hole are provided with through holes perpendicular to the inner flat hole, and the back-off is clamped in the through holes. The cap is integrally formed, so that the assembly links are reduced, the use is more convenient, the arrangement of the inner round hole, the inner flat hole and the through hole can facilitate the rapid and accurate connection of the needle body and the cap, and the cap is prevented from being excited by mistake and has higher safety.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a blood taking needle cap.
Background
The blood taking needle consists of a cap, a spring, a needle body, a shell and an excitation sleeve, wherein the cap and the needle body are one of important accessories of the blood taking needle, and when the blood taking needle is used, the needle body needs to be clamped on the cap. The existing blood taking needle cap consists of two parts, the two caps are required to be assembled together, and when the blood taking needle is used, the needle body is firstly placed on one side of the cap, and then the cap on the other side is assembled. Repeated accurate positioning is required in the assembly process, and the efficiency is low. And the cap injection molding process is complex.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the integrally formed blood taking needle cap, which omits the trouble of assembly, is accurately matched and connected with a needle body, can prevent false excitation and improves the safety.
Based on the above problems, the technical scheme provided by the utility model is that the blood taking needle cap is in matched connection with the blood taking needle shell, the excitation sleeve in the shell and the needle body, the needle cap is arranged at the top of the blood taking needle body, the back-off is arranged on the needle cap, the cap is integrally formed, the front end of the cap is provided with an inner round hole, the bottom of the inner round hole is provided with an inner flat hole with the same outline as the front end of the needle cap, two sides of the inner flat hole are provided with through holes perpendicular to the inner flat hole, and the back-off is clamped in the through holes.
Wherein, the front end side of the cap is provided with a guide surface which is convenient for assembling the cap and the excitation sleeve.
Wherein, one opposite inner wall of the inner flat hole is arranged in a cambered surface, and the other opposite inner wall is arranged in a plane.
Wherein, the diameter of the inner round hole is larger than the distance between any opposite surfaces of the inner flat hole, and a limit table is formed at the periphery of the connecting surface of the front end of the inner flat hole and the bottom end of the inner round hole.
Wherein, a certain clearance is left between the limit table and the front end of the excitation sleeve.
The utility model has the advantages and beneficial effects that:
the cap is integrally formed with the blood taking needle shell, the excitation sleeve in the shell and the needle body in a matched connection mode, two protective caps are not required to be assembled, and assembly links are reduced; the guide surface that the cap front end sets up the cover of being convenient for to arouse is connected with the cap, and the guide surface is connected the rotatory cylinder type internal round hole of being convenient for the cap, and interior round hole bottom sets up the interior flat hole the same with needle cap front end outline, does benefit to the needle cap and rotates along with the cap, and interior flat hole both sides set up the through-hole of being connected with needle cap back-off, can prevent the emergence of askew cap, mistake excitation secondarily.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of a longitudinal center section of the cap of the present utility model.
Wherein: 1. a cap; 2. a through hole; 3. an inner flat hole; 4. an inner circular hole; 5. a guide surface; 6. and a limiting table.
Detailed Description
The following detailed description of specific embodiments of the utility model refers to the accompanying drawings.
As shown in fig. 1-2, a blood taking needle cap is connected with a blood taking needle shell, an excitation sleeve in the shell and a needle body in a matched manner, the top of the blood taking needle body is provided with a needle cap, a back-off is arranged on the needle cap, the front end of the cap 1 is provided with an inner round hole 4, the bottom of the inner round hole 4 is provided with an inner flat hole 3 with the same outline as the front end of the needle cap, the needle cap is beneficial to rotating along with the cap 1, the cap is prevented from being askew, two sides of the inner flat hole 3 are provided with through holes 2 perpendicular to the inner flat hole 3, and the back-off is clamped in the through holes 2, so that the cap 1 is combined with the needle body.
The front end side of the cap 1 is provided with a guide surface 5 which is convenient for assembling the cap 1 and the excitation sleeve, and the guide surface 5 is connected with the inner round hole 4.
One opposite inner wall of the inner flat hole 3 is arranged in an arc surface, the other opposite inner wall is arranged in a plane, and the flat design is beneficial to the rotation of the needle cap along with the cap 1.
The inner round hole 4 is of a cylindrical structure, so that the cap 1 can be rotated conveniently, the diameter of the inner round hole 4 is larger than the distance between any opposite surfaces of the inner flat hole 3, and a limit table 6 is formed on the periphery of the connecting surface between the front end of the inner flat hole 3 and the bottom of the inner round hole 4.
A certain gap is reserved between the limiting table 6 and the front end of the excitation sleeve, so that false triggering of the blood taking needle is prevented.
When in use, the inner flat hole 3 of the cap 1 is arranged along the front end of the needle body until the needle body is reversely buckled and arranged in the through hole 2, so that the connection between the cap 1 and the needle body is realized.
The foregoing describes several embodiments of the present utility model in detail, but the description is merely a preferred embodiment of the utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (5)
1. The utility model provides a blood taking needle cap, is connected with the cooperation of blood taking needle shell, the inside excitation cover of shell and needle body, and blood taking needle body top sets up the needle cap, sets up the back-off on the needle cap, its characterized in that: the cap is integrated into one piece setting, and the front end of cap sets up interior round hole, and interior round hole bottom sets up the interior flat hole the same with needle cap front end outline, interior flat hole both sides set up the perpendicular to interior flat hole's through-hole, the back-off joint is in the through-hole.
2. The lancet cap of claim 1, wherein: the front end side of the cap is provided with a guide surface which facilitates the assembly of the cap with the excitation sleeve.
3. The lancet cap of claim 1, wherein: one opposite inner wall of the inner flat hole is arranged in a cambered surface manner, and the other opposite inner wall is arranged in a plane manner.
4. The lancet cap of claim 3, wherein: the diameter of the inner round hole is larger than the distance between any opposite surfaces of the inner flat hole, and a limit table is formed at the periphery of the connecting surface of the front end of the inner flat hole and the bottom end of the inner round hole.
5. The lancet cap of claim 4, wherein: a certain gap is reserved between the limiting table and the front end of the excitation sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222946591.4U CN219229888U (en) | 2022-11-07 | 2022-11-07 | Blood taking needle cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222946591.4U CN219229888U (en) | 2022-11-07 | 2022-11-07 | Blood taking needle cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219229888U true CN219229888U (en) | 2023-06-23 |
Family
ID=86844741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222946591.4U Active CN219229888U (en) | 2022-11-07 | 2022-11-07 | Blood taking needle cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219229888U (en) |
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2022
- 2022-11-07 CN CN202222946591.4U patent/CN219229888U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |