CN215938611U

CN215938611U - Special protection device of insulin pen syringe needle

Info

Publication number: CN215938611U
Application number: CN202121999794.9U
Authority: CN
Inventors: 张宇敏; 陈快; 叶美婷; 丘玉萍; 郑楚君
Original assignee: Guangzhou Panyu District Sixth People's Hospital
Current assignee: Guangzhou Panyu District Sixth People's Hospital
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-04
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a special protection device for an insulin pen needle, which comprises an insulin pen body and a needle body, wherein the needle body is inserted into one end of the insulin pen body, the side wall of the needle body is fixedly connected with a sealing ring, the sealing ring is in contact sealing with the side wall of the insulin pen body, the side wall of the sealing ring is fixedly connected with a limiting sleeve, the inner wall of the limiting sleeve is in contact with the side wall of the insulin pen body, the side wall of the insulin pen body is fixedly connected with a plurality of mounting grooves, the upper end of the limiting sleeve extends into the mounting grooves, the side walls of the limiting sleeve, which are respectively positioned in different mounting grooves, are fixedly connected with a plurality of wedge blocks, and a driving device is arranged in the mounting grooves. The utility model can quickly separate the syringe needle body from the insulin pen body under the action of the rebound force of the reset spring, has simple operation and quick action, can not cause injury to medical staff, avoids potential safety hazard and has stronger practicability.

Description

Special protection device of insulin pen syringe needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a special protection device for an insulin pen needle.

Background

The insulin pen is a pen which is internally provided with insulin medicament and is also provided with a needle, can directly inject insulin into a human body, is clinically used for injecting diabetes patients, is a disposable product and is very inconvenient because the needle needs to be detached every time when being used.

In the prior art, when a medical worker uses an insulin pen, the needle head needs to be unscrewed from the insulin pen, the operation is very complex, the time is delayed, the needle part of the needle head is easy to accidentally injure the medical worker, and great potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the operation of removing a needle is very troublesome and medical staff is easily injured by mistake in the prior art, and provides a special protective device for an insulin pen needle.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a special protection device for an insulin pen needle comprises an insulin pen body and a needle body, wherein the needle body is inserted into one end of the insulin pen body, a sealing ring is fixedly connected to the side wall of the needle body and is in contact sealing with the side wall of the insulin pen body, a limiting sleeve is fixedly connected to the side wall of the sealing ring, the inner wall of the limiting sleeve is in contact with the side wall of the insulin pen body, a plurality of mounting grooves are fixedly connected to the side wall of the insulin pen body, the upper end of the limiting sleeve extends into the mounting grooves, a plurality of first wedge blocks are fixedly connected to the side wall of the limiting sleeve respectively positioned in different mounting grooves, a driving device is installed in each mounting groove and is connected with a second wedge block, the first wedge blocks are connected with the second wedge blocks in a clamping manner, and the inner wall of the upper end of each mounting groove is fixedly connected with a supporting block through a reset spring, the side wall of the abutting block abuts against the side wall of the limiting sleeve.

Preferably, the mounting groove is integrally arc-shaped, an opening is formed in the lower end of the mounting groove, and the opening is used for inserting the limiting sleeve.

Preferably, drive arrangement includes the spout, the diapire of spout passes through buffer spring fixedly connected with slide bar, the lower lateral wall of slide bar and the inner wall sliding connection of spout, the slide bar extend to the spout outside and with two fixed connection of wedge, the upper end lateral wall fixedly connected with stay cord of slide bar, install thrust unit in the mounting groove, thrust unit is connected with the stay cord.

Preferably, the pushing device comprises a push rod, the push rod is connected with the inner wall of the mounting groove in a sliding mode, the push rod penetrates through the inner wall of the mounting groove and extends to the outside, the push rod is located in the mounting groove, the side wall of the lower end of the slide rod is fixedly connected with the pull rope, the inner wall of the sliding groove is rotatably connected with a first fixed pulley, the first fixed pulley is used for changing the direction of the pull rope, and the pull rope penetrates through the inner wall of the sliding groove.

Preferably, the inner wall fixedly connected with fixed block of mounting groove, the lateral wall of fixed block passes through the lateral wall fixed connection of spacing spring and push rod.

Preferably, the inner wall of the mounting groove is provided with a second fixed pulley, the second fixed pulley and the first fixed pulley are positioned on the same vertical axis, and the side wall of the second fixed pulley is contacted with the side wall of the pull rope.

Compared with the prior art, the utility model has the beneficial effects that:

1. the wedge block I and the wedge block II can be separated through the driving device and the pushing device, so that the needle head body and the insulin pen body can be quickly separated under the rebound force action of the reset spring, the operation is simple, the action is quick, the medical staff cannot be injured, the potential safety hazard is avoided, and the practicability is high;

2. the push rod drives the pull rope to move, the pull rope pulls the slide rod to move, the moving distance range is large, the slide rod is driven to move stably, the operation is labor-saving, and the connection between the first wedge block and the second wedge block can be guaranteed to be tight under the action of the rebound force of the buffer spring.

Drawings

FIG. 1 is a schematic structural view of a protective device specially used for an insulin pen needle according to the present invention;

FIG. 2 is a schematic view of a connection structure of a stop collar and a mounting groove;

fig. 3 is a schematic sectional structure view of the chute.

In the figure: the insulin pen comprises a pen body 1, a needle body 2, a sealing ring 3, a limiting sleeve 4, a mounting groove 5, a wedge block I6, a wedge block II 7, a reset spring 8, a butting block 9, a sliding groove 10, a buffer spring 11, a sliding rod 12, a pull rope 13, a push rod 14, a fixed pulley I15, a fixed block 16, a limiting spring 17 and a fixed pulley II 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a special protection device for insulin pen needle comprises an insulin pen body 1 and a needle body 2, wherein the needle body 2 is inserted into one end of the insulin pen body 1, the side wall of the needle body 2 is fixedly connected with a sealing ring 3, the sealing ring 3 is in contact sealing with the side wall of the insulin pen body 1, the side wall of the sealing ring 3 is fixedly connected with a position-limiting sleeve 4, the inner wall of the position-limiting sleeve 4 is in contact with the side wall of the insulin pen body 1, the side wall of the insulin pen body 1 is fixedly connected with a plurality of mounting grooves 5, the upper end of the position-limiting sleeve 4 extends into the mounting grooves 5, the side wall of the position-limiting sleeve 4 respectively positioned in different mounting grooves 5 is fixedly connected with a plurality of wedge blocks one 6, a driving device is installed in the mounting grooves 5, the driving device is connected with a wedge block two 7, the wedge block one 6 is connected with the wedge block two 7 in a clamping manner, the inner wall of the upper end of the mounting grooves 5 is fixedly connected with a resisting block 9 through a reset spring 8, the side wall of the abutting block 9 abuts against the side wall of the limiting sleeve 4.

The whole arc that is of mounting groove 5, and the lower extreme of mounting groove 5 has seted up the opening, and the opening is used for inserting stop collar 4, and the outward appearance is more pleasing to the eye like this, and stop collar 4 also is lighter in inserting mounting groove 5 simultaneously.

The driving device comprises a sliding groove 10, a bottom wall of the sliding groove 10 is fixedly connected with a sliding rod 12 through a buffer spring 11, a lower side wall of the sliding rod 12 is connected with an inner wall of the sliding groove 10 in a sliding mode, the sliding rod 12 extends to the outside of the sliding groove 10 and is fixedly connected with a second wedge block 7, an upper end side wall of the sliding rod 12 is fixedly connected with a pull rope 13, a pushing device is installed in the installation groove 5, and the pushing device is connected with the pull rope 13.

The pushing device comprises a push rod 14, the push rod 14 is connected with the inner wall of the mounting groove 5 in a sliding mode, the push rod 14 penetrates through the inner wall of the mounting groove 5 and extends to the outside, the lower end side wall of a sliding rod 12 located in the mounting groove 5 is fixedly connected with a pull rope 13, the inner wall of the sliding groove 10 is connected with a fixed pulley 15 in a rotating mode, the fixed pulley 15 is used for changing the direction of the pull rope 13, and the pull rope 13 penetrates through the inner wall of the sliding groove 10.

The inner wall fixedly connected with fixed block 16 of mounting groove 5, the lateral wall of fixed block 16 passes through the lateral wall fixed connection of spacing spring 17 and push rod 14, can make spacing spring 17 take place deformation through fixed block 16, and then can utilize spacing spring 17's bounce can restrict the position between wedge 6 and the wedge 7 more stably.

The second fixed pulley 18 is installed on the inner wall of the installation groove 5, the second fixed pulley 18 and the first fixed pulley 15 are located on the same vertical axis, the side wall of the second fixed pulley 18 is in contact with the side wall of the pull rope 13, the movement of the pull rope 13 can be limited through the matching of the first fixed pulley 15 and the second fixed pulley 18, the friction of the pull rope 13 can be reduced, and the service life of the pull rope is prolonged.

When the insulin pen body 1 and the needle head body 2 need to be separated, only two push rods 14 are pinched towards the middle by a forefinger and a thumb, when the push rods 14 move, the pull rope 13 is driven to move, the slide rod 12 is pulled to slide, the slide rod 12 drives the wedge block II 7 to move until the wedge block II 7 is separated from the wedge block I6, so that under the rebound force action of the reset spring 8, the abutting block 9 can abut against the limiting sleeve 4 to move, the limiting sleeve 4 can drive the needle head body 2 to move, and further the needle head body 2 is separated from the insulin pen body 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a special protection device of insulin pen syringe needle, includes insulin pen body (1) and syringe needle body (2), its characterized in that, the one end at insulin pen body (1) is inserted in syringe needle body (2), the lateral wall fixedly connected with sealing ring (3) of syringe needle body (2), sealing ring (3) are sealed with the lateral wall contact of insulin pen body (1), the lateral wall fixedly connected with stop collar (4) of sealing ring (3), the inner wall of stop collar (4) and the lateral wall contact of insulin pen body (1), the lateral wall fixedly connected with of insulin pen body (1) is a plurality of mounting grooves (5), the upper end of stop collar (4) extends to in mounting groove (5), is arranged in different mounting grooves (5) respectively the lateral wall fixedly connected with of stop collar (4) is a plurality of wedge (6), install drive arrangement in mounting groove (5), drive arrangement is connected with wedge two (7), wedge (6) and two (7) joints of wedge, the upper end inner wall of mounting groove (5) supports piece (9) through reset spring (8) fixedly connected with, the lateral wall that supports piece (9) offsets with the lateral wall of stop collar (4).

2. The special protection device for insulin pen needle according to claim 1, wherein the mounting groove (5) is arc-shaped as a whole, and the lower end of the mounting groove (5) is provided with an opening for inserting the stop collar (4).

3. The special protection device for insulin pen needle according to claim 1, wherein the driving device comprises a sliding chute (10), a sliding rod (12) is fixedly connected to the bottom wall of the sliding chute (10) through a buffer spring (11), the lower side wall of the sliding rod (12) is slidably connected to the inner wall of the sliding chute (10), the sliding rod (12) extends out of the sliding chute (10) and is fixedly connected to a second wedge block (7), a pull rope (13) is fixedly connected to the upper side wall of the sliding rod (12), and a pushing device is installed in the installation groove (5) and is connected to the pull rope (13).

4. The special insulin pen needle protection device according to claim 3, wherein the pushing device comprises a push rod (14), the push rod (14) is slidably connected with the inner wall of the installation groove (5), the push rod (14) extends to the outside through the inner wall of the installation groove (5), the lower end side wall of the slide rod (12) in the installation groove (5) is fixedly connected with a pull rope (13), the inner wall of the sliding groove (10) is rotatably connected with a first fixed pulley (15), the first fixed pulley (15) is used for changing the direction of the pull rope (13), and the pull rope (13) penetrates through the inner wall of the sliding groove (10).

5. The special insulin pen needle protection device as claimed in claim 4, wherein a fixing block (16) is fixedly connected to the inner wall of the mounting groove (5), and the side wall of the fixing block (16) is fixedly connected to the side wall of the push rod (14) through a limiting spring (17).

6. The special insulin pen needle protection device as claimed in claim 4 or 5, wherein a second fixed pulley (18) is installed on the inner wall of the installation groove (5), the second fixed pulley (18) and the first fixed pulley (15) are located on the same vertical axis, and the side wall of the second fixed pulley (18) is in contact with the side wall of the pull rope (13).