CN216593903U

CN216593903U - Needle point puncture force tester for injection needle

Info

Publication number: CN216593903U
Application number: CN202122695960.2U
Authority: CN
Inventors: 房鑫
Original assignee: Shandong Antong Medical Equipment Co ltd
Current assignee: Shandong Antong Medical Equipment Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-24
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses a needle point puncture force tester for an injection needle, which comprises a tester main body, wherein a control adjusting door is arranged on the surface position of the tester main body, a limiting slide rail is fixedly connected to the upper position of the inner wall of one side of the tester main body, which is far away from the control adjusting door, a puncture mold fixing device is arranged on the position of the limiting slide rail, the puncture mold fixing device comprises a puncture model fixing frame, the puncture model fixing frame is in sliding connection with the limiting slide rail at the corresponding position, a mold groove is formed in the surface position of the puncture model fixing frame, two symmetrically-arranged through needle holes are formed in the position of the model groove of the puncture model fixing frame, a fixing plug pin is in sliding connection with the puncture model fixing frame at the position of the through needle holes, and the puncture model can be effectively fixed through the fixing plug pin. The utility model can effectively detect the puncture capability of the needle point of the injection needle, effectively avoid the increase of pain of patients or the deformation of the injection needle caused by the insufficient puncture capability of the needle point of the injection needle, and ensure that the injection needle is more practical and safer.

Description

Needle point puncture force tester for injection needle

Technical Field

The utility model relates to the technical field of medical equipment detection, in particular to a tester for the puncture force of a needle tip of an injection needle.

Background

Most of medical syringes in the prior art are used for injecting liquid medicine into a human body to realize treatment of diseases, but the manufacturing process of the needle point of the injection needle in the prior art is simple, so most medical companies can produce the injection needle, but the needle points of the injection needles produced by different manufacturers have different puncture capacities, and when the puncture capacity does not reach the standard, the pain of patients is increased, even the needle is deformed, and the safe injection is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the puncture capability of the needle point of the injection needle in the prior art cannot be effectively detected, so that the puncture capability does not reach the standard, and the safe injection is not facilitated.

In order to solve the technical problems, the utility model adopts a technical scheme that: the tester comprises a tester main body, wherein a control adjusting door is arranged on the surface of the tester main body, a limiting slide rail is fixedly connected to the upper part of the inner wall of one side of the tester main body, which is far away from the control adjusting door, and a puncture mould fixing device is arranged at the position of the limiting slide rail;

puncture mould fixing device is including the fixed frame of puncture model, the fixed frame of puncture model and the spacing slide rail sliding connection who corresponds the position, the fixed frame surface position of puncture model has seted up the mould groove, the fixed frame of puncture model is located the model trench position and has seted up the pinhole that runs through that two symmetries set up, the fixed frame of puncture model is located to run through pinhole position and runs through sliding connection and has the fixed nail of inserting, can effectual fixed puncture model through the fixed nail of inserting.

Preferably, the tester main part lateral wall position runs through and has seted up the syringe needle through hole, the fixed frame of puncture model is kept away from syringe needle through hole one side top position fixedly connected with first compression spring, fixed frame one end of puncture model and tester main part inner wall fixed connection are kept away from to first compression spring.

Preferably, the outer wall of the tester main body on one side close to the needle through hole is fixedly connected with a fixed support plate arranged in an L shape above the needle through hole, the inner side of the fixed support plate is connected with an adjusting lead screw in a penetrating and rotating mode, and the adjusting lead screw is connected with the outer wall of the tester main body in a rotating mode.

Preferably, the adjusting screw rod is fixedly connected with a rotating adjusting block at one end of the tester body, a pressing and abutting plate is arranged below the fixed supporting plate and is connected with the adjusting screw rod corresponding to the pressing and abutting plate in a penetrating and meshing mode, the adjusting screw rod is rotated and adjusted fast through rotation, and the position of the pressing and abutting plate is adjusted conveniently.

Preferably, the control regulating gate is made of toughened glass materials, the toughened glass materials are good in perspective, and the puncture condition can be observed conveniently.

Preferably, the central position of the upper surface of the tester main body is connected with a stirring adjusting block in a penetrating and sliding manner, and the stirring adjusting block is positioned in the tester main body and is fixedly connected with a blocking connecting rod arranged in a T shape at one end.

Preferably, block that connecting rod upper surface position leads to heart fixedly connected with second compression spring, second compression spring keeps away from and blocks connecting rod one end and tester main part lower surface position fixed connection, and the convenient regulating block that makes to stir resets.

The utility model has the following beneficial effects:

according to the utility model, the needle head of the injection needle is inserted into the needle head through hole, the puncture model fixing frame drives the puncture model to impact the needle point under the pressure of the first compression spring, the control adjusting door is opened to measure the depth of the needle head inserted into the measurement model, so that the puncture capability of the needle head can be judged, the injection needle heads of various batches of manufacturers can be effectively screened, the puncture capability of the needle head is effectively ensured, the injection pain is reduced, and the deformation of the needle head is avoided.

Drawings

FIG. 1 is a front view of a needle point penetration force tester of an injection needle according to the present invention;

FIG. 2 is a front sectional view of a needle point penetration force tester of an injection needle according to the present invention;

fig. 3 is a schematic structural view of a puncture model fixing frame of the injection needle point puncture force tester of the utility model.

In the figure: 1. a tester main body; 2. stirring the adjusting block; 3. a needle head through hole; 4. pressing the abutting plate; 5. rotating the adjusting block; 6. fixing the support plate; 7. a first compression spring; 8. a second compression spring; 9. a blocking connecting rod; 10. a limiting slide rail; 11. adjusting the lead screw; 12. fixing the inserted nails; 13. puncturing a model fixing frame; 14. penetrating through the pinhole; 15. a mould groove; 16. controlling the regulating gate.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to fig. 1, 2 and 3, a needle point puncture force tester for injection needles comprises a tester body 1, a needle through hole 3 is formed in the side wall of the tester body 1 in a penetrating manner, a first compression spring 7 is fixedly connected to the upper side of one side of a puncture model fixing frame 13 far away from the needle through hole 3, one end of the first compression spring 7 far away from the puncture model fixing frame 13 is fixedly connected with the inner wall of the tester body 1, and a control adjusting door 16 is arranged on the surface of the tester body 1.

The control regulating door 16 is made of toughened glass materials, a limiting slide rail 10 is fixedly connected to the upper portion of the inner wall of the tester body 1 far away from the control regulating door 16, a puncture mold fixing device is arranged at the position of the limiting slide rail 10, and a fixing support plate 6 which is arranged in an L shape is fixedly connected to the upper portion of the needle through hole 3 on the outer wall of the tester body 1 close to one side of the needle through hole 3.

6 inboard positions of fixed bolster run through to rotate and be connected with adjusts lead screw 11, adjusts lead screw 11 and keeps away from 1 one end position fixedly connected with rotation regulating block 5 of tester main part, and 6 below positions of fixed bolster are provided with presses and support tight board 4, press to support tight board 4 and correspond the regulation lead screw 11 through meshing connection of position, adjust lead screw 11 and tester main part 1 outer wall and rotate and be connected.

The central position of the upper surface of the tester main body 1 is provided with a stirring adjusting block 2 in a penetrating and sliding connection mode, the stirring adjusting block 2 is positioned in the tester main body 1, one end of the stirring adjusting block is fixedly connected with a blocking connecting rod 9 in a T shape, the upper surface of the blocking connecting rod 9 is fixedly connected with a second compression spring 8 in a through mode, and the second compression spring 8 is far away from the lower surface of the blocking connecting rod 9 and is fixedly connected with the tester main body 1.

The puncture mould fixing device comprises a puncture model fixing frame 13, the puncture model fixing frame 13 is in sliding connection with a limiting slide rail 10 corresponding to the puncture model fixing frame 13, a mould groove 15 is formed in the surface position of the puncture model fixing frame 13, the puncture model fixing frame 13 is located at the mould groove 15 and provided with two symmetrical through needle holes 14, and the puncture model fixing frame 13 is located at the through needle holes 14 and is in sliding connection with fixed inserting nails 12.

When the device is used, a needle head of an injection needle to be detected is inserted into the needle head through hole 3, the rotating adjusting block 5 is rotated, the pressing and abutting plate 4 abuts against the needle head tailstock, the needle head is fixed, a puncture mold, namely pigskin, is placed in the puncture model fixing frame 13 and is fixed through the fixed contact pin 12, the shifting adjusting block 2 is pulled, the puncture model fixing frame 13 drives the pigskin to impact the needle head of the injection needle under the action of the first compression spring 7, the control adjusting door 16 is opened to measure the puncture depth of the needle head, the puncture capability of the needle head can be judged, the pigskin is slid, the needle head of the refraction needle is taken out, whether the needle head is bent or not is checked, and the puncture capability detection is completed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a syringe needle point puncture force tester, includes tester main part (1), its characterized in that: a control adjusting door (16) is arranged on the surface of the tester main body (1), a limiting slide rail (10) is fixedly connected to the upper position of the inner wall of one side, away from the control adjusting door (16), of the tester main body (1), and a puncture mold fixing device is arranged on the position of the limiting slide rail (10);

puncture mould fixing device is including the fixed frame of puncture model (13), the fixed frame of puncture model (13) and the spacing slide rail (10) sliding connection who corresponds the position, mould groove (15) have been seted up to the fixed frame of puncture model (13) surface position, the fixed frame of puncture model (13) are located mould groove (15) position and set up run through pinhole (14) that two symmetries set up, the fixed frame of puncture model (13) are located to run through pinhole (14) position and run through sliding connection and fix and insert nail (12).

2. The needle point penetration force tester of an injection needle according to claim 1, characterized in that: the tester main part (1) lateral wall position runs through and has seted up syringe needle through hole (3), the fixed frame of puncture model (13) is kept away from the first compression spring (7) of syringe needle through hole (3) one side top position fixedly connected with, the fixed frame of puncture model (13) one end and tester main part (1) inner wall fixed connection are kept away from to first compression spring (7).

3. The needle point penetration force tester of an injection needle according to claim 1, characterized in that: tester main part (1) is close to fixed support board (6) that syringe needle through hole (3) one side outer wall is located syringe needle through hole (3) top position fixedly connected with "L" shape setting, the inboard position of fixed support board (6) runs through to rotate and is connected with regulation lead screw (11), it is connected with tester main part (1) outer wall rotation to adjust lead screw (11).

4. A needle point penetration force tester according to claim 3, wherein: the adjusting screw rod (11) is far away from one end of the tester body (1) and is fixedly connected with a rotating adjusting block (5), a pressing abutting plate (4) is arranged below the fixed supporting plate (6), and the pressing abutting plate (4) is connected with the adjusting screw rod (11) corresponding to the position in a penetrating and meshing mode.

5. The needle point penetration force tester of an injection needle according to claim 1, characterized in that: the control adjusting door (16) is made of toughened glass materials.

6. The needle point penetration force tester of an injection needle according to claim 1, characterized in that: the tester is characterized in that the central position of the upper surface of the tester main body (1) is provided with a stirring adjusting block (2) in a penetrating and sliding connection mode, and the stirring adjusting block (2) is located in the tester main body (1) and is fixedly connected with a blocking connecting rod (9) arranged in a T shape at one end.

7. The needle point penetration force tester of the injection needle according to claim 6, wherein: stop connecting rod (9) upper surface position and lead to heart fixedly connected with second compression spring (8), second compression spring (8) are kept away from and are stopped connecting rod (9) one end and tester main part (1) lower surface position fixed connection.