CN213129480U - Lower-triggering slight-pain safety blood taking needle - Google Patents
Lower-triggering slight-pain safety blood taking needle Download PDFInfo
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- CN213129480U CN213129480U CN202021199561.6U CN202021199561U CN213129480U CN 213129480 U CN213129480 U CN 213129480U CN 202021199561 U CN202021199561 U CN 202021199561U CN 213129480 U CN213129480 U CN 213129480U
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Abstract
The utility model discloses a lower trigger slight pain safety blood taking needle, include: needle body, arouse cover, shell, spring, inner wall, screens, buckle, platform, arch and guide platform set up in the shell and arouse the cover, and the afterbody of needle body inserts from arousing the top end opening part of cover, and equal sliding connection between shell, arouse cover and the needle body arouses to be provided with the inner wall on the cover, and the bottom inboard of inner wall is provided with the screens, the bottom outside is provided with the buckle, arouses the buckle of cover respectively with the platform of needle body and the protruding joint of shell, the spring setting is in between the bottom of needle body and the shell, the bottom of shell is provided with the guide platform, and the top butt screens inboard of guide platform is when pressing when arousing the cover, will through the top of guide platform the inner wall opens to both sides, makes the needle body do axial motion under the effort of spring and pass through the screens department of inner wall. The utility model discloses simple structure and control the depth of needle insertion reduce the painful sense when taking a blood sample.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a trigger slight pain safety blood taking needle down.
Background
In the prior art, lancets have been designed to rotate the needle body to the firing position by pressing on the firing sleeve, which in this case is simply moved axially within the lancet housing. However, because one end of the spring is connected with the needle body and the other end of the spring is not connected with the bottom cover of the blood taking needle in a relative displacement manner, the needle body rotates to drive the spring to twist, and the spring is twisted and flicked at the same time, so that the potential energy of the spring is damaged, and the flicking force is influenced. The lancet also needs to be prevented from being misfired, and in order to prevent the misfiring, a cap device is arranged on the lancet to cover an inner sleeve triggering the blood sampling operation, so that the number of components is large, the structure is complex, the manufacturing cost is increased, and the resource waste is caused.
In addition, the needle inserting depth of the blood taking needle is controlled by the free extension of the spring, so that a little error exists, and the pain is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lower trigger slight pain safety blood taking needle.
To achieve the above object, the present invention adopts the following:
lower trigger slight pain safety blood taking needle includes: a needle body, an excitation sleeve, a shell, a spring, an inner wall, a clamping position, a buckle, a platform, a bulge and a guide platform, an excitation sleeve is arranged in the shell, the tail part of the needle body is inserted from the opening at the top end of the excitation sleeve, the shell, the excitation sleeve and the needle body are all connected in a sliding way, the excitation sleeve is provided with an inner wall, the inner side of the bottom of the inner wall is provided with a clamping position, the outer side of the bottom is provided with a buckle, the buckle of the excitation sleeve is respectively clamped with the platform of the needle body and the bulge of the shell, used for fixing the positions among the needle body, the excitation sleeve and the shell, the spring is arranged between the bottom of the needle body and the shell, the bottom of the shell is provided with a guide table, the top of the guide table is abutted against the inner side of the clamping position, when pressing when arousing the cover, will through the top of guide table the inner wall opens to both sides, makes the needle body is axial motion under the effort of spring and passes through the screens department of inner wall.
Preferably, the upper end face of the shell is arc-shaped, the top of the needle body is provided with a protective cap, and two sides of the protective cap are provided with anti-excitation arms.
Preferably, guide grooves are formed in two sides of the needle body, and guide rails matched with the guide grooves are arranged on the inner side of the inner wall.
Preferably, a groove is formed in the shell, and a slide channel matched with the groove is formed in the outer side of the inner wall.
Preferably, two sides of the needle body are provided with limit tables, and a plane matched with the limit tables is arranged in the excitation sleeve and used for limiting the limit tables to continue to move axially through the plane, so that the needle insertion depth of the needle body is controlled.
Preferably, the bottom of shell sets up spacing post, spacing post runs through the spring for the flexible direction of guide spring locks the spring simultaneously and controls the activity volume.
The utility model has the advantages of it is following:
1. the protective cap is convenient to rotate, a protective cap shell is not required to be additionally configured, the number of components is small, the structure is simple, unnecessary resource waste is reduced, and false excitation cannot occur;
2. the tail part of the needle body is inserted from the opening at the top end of the excitation sleeve, so that the installation is convenient;
3. the needle inserting depth of the blood taking needle is realized by the plane matching of the limiting table of the needle body and the excitation sleeve, and the accurate positioning of the needle inserting depth is ensured, so that the pain in blood taking is reduced.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 2 is a schematic view of the whole structure of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 3 is a schematic view of the whole structure of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 4 is a cross-sectional view taken along line BB of FIG. 3;
FIG. 5 is a schematic view of the whole structure of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 6 is a cross-sectional view taken along line CC of FIG. 5;
FIG. 7 is a schematic structural view of the needle body of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 8 is a schematic structural view of the needle body of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 9 is a schematic structural view of the needle body of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 10 is a schematic structural view of an excitation sleeve in the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 11 is a schematic structural view of an excitation sleeve in the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 12 is a schematic structural view of an excitation sleeve in the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 13 is a schematic structural view of an excitation sleeve in the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 14 is a schematic structural view of the outer casing of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 15 is a cross-sectional view taken along line AA of FIG. 14;
FIG. 16 is a schematic structural view of the outer casing of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 17 is a schematic structural view of the outer casing of the lower triggering micro-pain safety blood taking needle of the present invention;
FIG. 18 is a schematic structural view of the outer casing of the lower triggering micro-pain safety blood taking needle of the present invention;
in the figures, the various reference numbers are:
1. a needle body; 2. an excitation sleeve; 3. a housing; 4. a spring; 5. a needle core; 11. a protective cap; 12. an anti-excitation arm; 13. a limiting table; 14. the tail part of the needle body; 15. a guide groove; 16. a platform; 21. buckling; 22. clamping; 23. a guide rail; 24. a limiting groove; 25. a circular truncated cone; 26. an opening; 27. a chute; 28. a plane; 29. an inner wall; 30. an excitation sleeve front end; 31. a protrusion; 32. a terminating surface; 33. a groove; 34. a guide table; 35. clamping a platform; 36. a viewing port; 37. a semi-circular concave surface; 38. a limiting column.
Detailed Description
In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 to 6, the safety lancet of a lower trigger type of the present invention comprises a needle body 1, an exciting sleeve 2, a housing 3, a spring 4; the needle body 1, the excitation sleeve 2 and the spring 4 are arranged in the shell 3; one end of the spring 4 is arranged at the tail part 14 of the needle body, and the other end is arranged at the bottom of the shell 3; the needle body 1 is inserted into the excitation sleeve 2 from the tail part.
As shown in fig. 7 to 9, the front end of the needle body 1 is provided with a protective cap 11, and the protective cap 11 is provided with an anti-excitation arm 12; two sides of the needle body 1 are provided with limit tables 13; the other two sides of the needle body 1 are provided with guide grooves 15, the center is provided with a through hole, and one end of the through hole is provided with a platform 16; the rear end has a needle tail 14.
As shown in fig. 11 to 13, the front end of the excitation sleeve 2 has an opening 26, two outer sides of the front end have a limit groove 24, the outer side of the bottom of the limit groove 24 has a buckle 21, two sides of the limit groove 24 have a slide groove 27, the outer side of the front end opening 26 is a circular truncated cone 25, the circular truncated cone 25 has a plane 28, the front part of the circular truncated cone 25 is the front end 30 of the excitation sleeve, the inner side has an inner wall 29, the inner wall 29 has a guide rail 23, and the inner side of the bottom of the guide rail 23 has a clip.
As shown in fig. 14 to 18, the front end of the housing 3 is open, two sides of the front end have semicircular concave surfaces 37, two sides of the housing 3 have grooves 33, the grooves 33 have protrusions 31, two sides of the inner wall of the front end have terminating surfaces 32, two sides of the bottom of the housing 3 have guide platforms 34, the bottom of the housing 3 has a limiting column 38 and a clamping platform 35, and the bottom has an observation port 36.
The assembling method comprises the following steps: the tail part of the needle body 1 is put into the front end opening 26 of the excitation sleeve 2, so that the needle body guide groove 15 is inserted along the guide rail 23 of the excitation sleeve and is used for limiting the rotation of the needle body 1 in the excitation sleeve 2; until the needle body platform 16 is jointed with the clamping position 22 of the excitation sleeve 2, the needle body 1 and the excitation sleeve 2 are connected together and used for applying pressure to the spring 4; at the moment, the protective cap 11 of the needle body 1 is arranged above the circular platform 25 of the excitation sleeve, and the excitation-proof arm 12 of the needle body 1 is arranged outside the circular platform 25 of the excitation sleeve 2; then one end of the spring 4 is arranged on the tail part 14 of the needle body; then the needle body 1, the excitation sleeve 2 and the spring 4 are assembled in the shell 3, the buckle 21 on the excitation sleeve 2 is inserted along the groove 33 of the shell 3 until the other end of the spring 4 is assembled in the clamping table 35 at the bottom of the shell 3, and the bottom of the shell 3 is also provided with a limit column 38 for guiding the spring 4 to advance towards the clamping table 35 at the bottom of the shell 3 and locking the left and right movement of the spring 4. A hollow observation port 36 is arranged at the bottom of the shell 3, and whether the spring is installed in place can be observed through the observation port; meanwhile, the excitation sleeve buckle 21 is arranged on the bulge 31 of the shell and used for connecting the shell 3 with the excitation sleeve 2, the outer wall of the shell groove 33 is arranged in the excitation sleeve slide channel groove 27 and the limiting groove 24 and used for limiting the rotation and the displacement of the excitation sleeve 2 in the shell 3, and in the downward pressing installation process, the 32 termination surface of the shell is in contact with the 28 plane of the excitation sleeve in the axial direction to terminate the downward movement of the excitation sleeve 2 along the inner side of the shell and lock the pressing depth of the excitation sleeve 2; at this time, the needle excitation prevention arm 12 is attached to the semicircular concave surface 37 at the front end of the housing to prevent false excitation, and the assembly is completed.
The use method comprises the following steps: firstly, the protective cap 11 is rotated along the semicircular concave surface 37 of the shell, because the semicircular concave surface 37 is low in the middle and high at two ends, the protective cap 11 can be automatically separated from the needle body 1 when the protective cap 11 is rotated, at the moment, the circular platform 25 of the excitation sleeve is pressed to excite the front end 30 of the sleeve, the spring 4 enters a pre-pressing state until the inner wall 29 of the excitation sleeve is completely positioned on the guide platform 34 of the shell, the clamping position 22 of the excitation sleeve 2 is gradually expanded by the inclined surface at the top of the guide platform 34 of the shell 3, at the moment, the platform 16 on the needle body 1 can pass through the clamping position 22 of the excitation sleeve, and because the spring 4 is in a compression state, the needle body 1 moves axially along the excitation sleeve 2 under the elastic action of the spring 4, the spring 4 enters a stretching state under the action of inertia until the limiting platform 13 on the needle body 1 is contacted with the plane 28 of the excitation sleeve, and the, the stretching of the spring 4 is finished, the needle inserting depth of the needle core 5 is controlled, the needle core 5 arranged in the needle body 1 is exposed out of the front end opening 26 of the excitation sleeve, the performance of the spring 4 obtained by compression disappears, the spring 4 enters a retraction state generated by stretching, the needle body 1 is completely retracted into the excitation sleeve 2 after the spring 4 returns to the free length, and the needle core 5 arranged in the needle body 3 is also completely positioned in the excitation sleeve opening 26. The whole blood sampling process is completed.
Obviously, the embodiment of the present invention for triggering a low-pain safety blood taking needle is only an example for clearly illustrating the present invention, and is not a limitation to the embodiments of the present invention, and for those skilled in the art, other variations or changes can be made on the basis of the above description, and all embodiments cannot be exhausted here, and all obvious variations or changes led by the technical solution of the present invention are still within the protection scope of the present invention.
Claims (6)
1. Under trigger slight pain safety blood taking needle, its characterized in that includes: a needle body, an excitation sleeve, a shell, a spring, an inner wall, a clamping position, a buckle, a platform, a bulge and a guide platform, an excitation sleeve is arranged in the shell, the tail part of the needle body is inserted from the opening at the top end of the excitation sleeve, the shell, the excitation sleeve and the needle body are all connected in a sliding way, the excitation sleeve is provided with an inner wall, the inner side of the bottom of the inner wall is provided with a clamping position, the outer side of the bottom is provided with a buckle, the buckle of the excitation sleeve is respectively clamped with the platform of the needle body and the bulge of the shell, used for fixing the positions among the needle body, the excitation sleeve and the shell, the spring is arranged between the bottom of the needle body and the shell, the bottom of the shell is provided with a guide table, the top of the guide table is abutted against the inner side of the clamping position, when pressing when arousing the cover, will through the top of guide table the inner wall opens to both sides, makes the needle body is axial motion under the effort of spring and passes through the screens department of inner wall.
2. The lower-trigger slight-pain safety blood collection needle according to claim 1, wherein the upper end surface of the housing is arc-shaped, the top of the needle body is provided with a protective cap, and the two sides of the protective cap are provided with an anti-excitation arm.
3. The lower triggering low pain safety lancet of claim 1, wherein guide grooves are provided on both sides of the needle body, and guide rails adapted to the guide grooves are provided on the inner side of the inner wall.
4. The lower trigger slight pain safety lancet according to claim 1, wherein a groove is provided in the housing, and a slide groove adapted to the groove is provided on the outer side of the inner wall.
5. The under-trigger slight-pain safety blood taking needle according to claim 1, wherein two sides of the needle body are provided with limit platforms, and a plane matched with the limit platforms is arranged in the excitation sleeve and used for limiting the limit platforms to continue to move axially through the plane, so that the needle inserting depth of the needle body is controlled.
6. The lower trigger slight pain safety lancet according to any one of claims 1 to 5, wherein a limiting post is provided at the bottom of the housing, and the limiting post penetrates through the spring for guiding the extension direction of the spring and locking the left and right movement of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021199561.6U CN213129480U (en) | 2020-06-24 | 2020-06-24 | Lower-triggering slight-pain safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021199561.6U CN213129480U (en) | 2020-06-24 | 2020-06-24 | Lower-triggering slight-pain safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213129480U true CN213129480U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021199561.6U Active CN213129480U (en) | 2020-06-24 | 2020-06-24 | Lower-triggering slight-pain safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213129480U (en) |
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2020
- 2020-06-24 CN CN202021199561.6U patent/CN213129480U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210830 Address after: 300450 first floor of plant 10, No. 80, Haiyun street, economic and Technological Development Zone, Binhai New Area, Tianjin and first floor of East service core Patentee after: Tianjin Huashang Medical Equipment Co.,Ltd. Address before: 050000 No.14 Fuyu northwest street, Ma Cun dangpu Zhuang Cun, Yuanshi County, Shijiazhuang City, Hebei Province Patentee before: He Jiachao |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Lower trigger painless safety blood sampling needle Effective date of registration: 20221103 Granted publication date: 20210507 Pledgee: China Construction Bank Corporation Tianjin Development Branch Pledgor: Tianjin Huashang Medical Equipment Co.,Ltd. Registration number: Y2022980020795 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |