CN215426632U

CN215426632U - Improved insulin pen

Info

Publication number: CN215426632U
Application number: CN202121486097.3U
Authority: CN
Inventors: 顾玉炎; 陆黎珍
Original assignee: Zhejiang Cancer Hospital
Current assignee: Zhejiang Cancer Hospital
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-01-07
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses an improved insulin pen, which comprises a pen container and a needle head, wherein the bottom of the pen container is communicated with a liquid outlet pipe, the upper end of the needle head is sleeved at the lower end of the liquid outlet pipe, the bottom of the pen container is fixedly connected with a sleeve, the liquid outlet pipe is positioned inside the sleeve, the outer wall of the needle head is fixedly connected with an elastic chuck, the inner wall of the sleeve is provided with a clamping hole, the elastic chuck is clamped inside the clamping hole, a piston rod is arranged inside the pen container, the lower end of the piston rod is fixedly connected with a piston head, and the top of the piston rod is fixedly connected with a pressing plate; according to the utility model, the pressure sensor, the timing switch and the indicator lamp are matched with the singlechip, after the insulin injection is finished, the indicator lamp is turned on for 10 seconds, so that a user can judge the time for pulling the needle according to the time for turning on the indicator lamp, thereby ensuring the diffusion time of the medicine, and meanwhile, after the needle is pulled, the function of withdrawing the needle can be automatically realized by pressing the arc-shaped elastic sheet, so that the phenomenon that the user is stabbed when the needle head is detached is avoided.

Description

Improved insulin pen

Technical Field

The utility model relates to the technical field of insulin pens, in particular to an improved insulin pen.

Background

When a diabetic patient injects insulin, the insulin needs to stay for 10 seconds from the time when the insulin is injected to the time when the needle is pulled out of the skin, so that the purpose is to ensure that the injected medicine has enough time to be dispersed in tissues or diffused in the tissues, but most people cannot accurately know the specific stay time, so that the insulin cannot be effectively diffused in the body of the patient, and the efficacy of the insulin is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide an improved insulin pen to solve the above problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: an improved insulin pen comprises a pen container and a needle head, wherein a liquid outlet pipe is communicated with the bottom of the pen container, the upper end of the needle head is sleeved at the lower end of the liquid outlet pipe, a sleeve is fixedly connected with the bottom of the pen container, the liquid outlet pipe is positioned inside the sleeve, an elastic chuck is fixedly connected with the outer wall of the needle head, a clamping hole is formed in the inner wall of the sleeve, the elastic chuck is clamped inside the clamping hole, a piston rod is arranged inside the pen container, a piston head is fixedly connected with the lower end of the piston rod, a pressing plate is fixedly connected with the top of the piston rod, a slot is formed in the outer wall of the pen container, a movable rod is movably inserted inside the slot, the top of the movable rod is fixedly connected with the bottom of the pressing plate, a pressure sensor is fixedly connected with the bottom of the slot, and a timing switch is fixedly connected with the upper end of the outer wall of the pen container, the outer wall fixedly connected with pilot lamp of time switch, the inside fixed mounting of time switch has the singlechip, pressure sensor with the signal input part electric connection of singlechip, time switch with singlechip electric connection, the signal output part of singlechip with pilot lamp electric connection.

Through adopting above-mentioned technical scheme, when insulin pen injection ended, the time that the red light was bright for pressure sensor gives time switch with signal transmission, then time switch control pilot lamp lights, lasts the second, and the user can be according to the length of time that the pilot lamp lights, decides the opportunity of pulling out the needle to it is long to have guaranteed that the medicine spreads.

Preferably, the outer wall of the sleeve is fixedly connected with an arc-shaped elastic sheet, the bottom of the arc-shaped elastic sheet is fixedly connected with a bump, the bottom of the pen container is fixedly connected with a plurality of springs at equal angles, the bottoms of the springs are fixedly connected with an annular plate, and the annular plate is located between the outer wall of the liquid outlet pipe and the inner wall of the sleeve.

By adopting the technical scheme, the convex block is pressed into the clamping hole by pressing the arc-shaped elastic sheet, the elastic clamping head is pressed out of the clamping hole, and then the needle head is separated from the pen container by matching the spring with the annular plate.

Preferably, the inner wall of the sleeve is provided with a guide groove, and the upper end of the guide groove is communicated with the clamping hole.

Through adopting above-mentioned technical scheme, the elasticity dop card of being convenient for is gone into the inside in card hole.

Preferably, a button battery for supplying power is arranged inside the timing switch.

By adopting the technical scheme, the use of a user is facilitated.

Preferably, the bottom of the slot and the bottom of the interior of the pen container are at the same horizontal height, and the bottom of the movable rod and the bottom of the piston head are on the same horizontal plane.

By adopting the technical scheme, after the insulin liquid in the pen container is injected, the movable rod can be just pressed on the pressure sensor.

Preferably, the outer wall of the upper end of the pen container is fixedly connected with a supporting plate.

Through adopting above-mentioned technical scheme, the user of being convenient for promotes the clamp plate.

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

through pressure sensor, time switch, pilot lamp cooperation singlechip, after the insulin injection finishes, the pilot lamp lights, lasts 10 seconds for the user can be according to the length of time that the pilot lamp lights, judges the opportunity of pulling out the needle, thereby when having guaranteed the diffusion of medicine, simultaneously, pull out the needle after, can realize the function of moving back the needle automatically through pressing down arc shell fragment, avoid the user when dismantling the syringe needle, the phenomenon of being stabbed takes place.

Drawings

FIG. 1 is a schematic structural diagram of an improved insulin pen of the present invention;

FIG. 2 is a schematic diagram of an exploded structure of the modified insulin pen of the present invention;

FIG. 3 is a schematic diagram of the piston head of the modified insulin pen of the present invention;

FIG. 4 is a schematic view of a slot structure of the improved insulin pen of the present invention;

FIG. 5 is a schematic diagram of a partial exploded structure of the modified insulin pen of the present invention;

FIG. 6 is an enlarged view of the portion A of FIG. 4;

FIG. 7 is an enlarged view of the portion B of FIG. 5;

FIG. 8 is an enlarged view of the portion C of FIG. 5;

FIG. 9 is an enlarged view of the portion D of FIG. 1;

fig. 10 is a schematic block diagram of the circuitry of the improved insulin pen of the present invention.

In the figure: 1. a pen container; 101. a support plate; 2. a needle head; 3. a sleeve; 301. a single chip microcomputer; 4. a movable rod; 5. a piston rod; 6. pressing a plate; 7. a liquid outlet pipe; 8. a piston head; 9. a slot; 10. a pressure sensor; 11. a spring; 12. an annular plate; 13. a timing switch; 14. an indicator light; 15. an elastic chuck; 16. a clamping hole; 17. an arc-shaped elastic sheet; 18. a bump; 19. a guide groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution:

an improved insulin pen comprises a pen container 1, a needle 2, a timing switch 13, a pressure sensor 10 and an indicator light 14;

wherein, the bottom of the pen container 1 is communicated with a liquid outlet pipe 7, the bottom of the pen container 1 outside the liquid outlet pipe 7 is fixedly connected with a sleeve 3, the liquid outlet pipe 7 is positioned inside the sleeve 3, the upper end of the needle head 2 is sleeved at the lower end of the liquid outlet pipe 7, a clamping hole 16 and an elastic clamping head 15 are arranged for fixing the needle head 2 on the liquid outlet pipe 7, the clamping hole 16 is arranged on the inner wall of the sleeve 3, the elastic clamping head 15 is fixedly connected on the outer wall of the needle head 2, meanwhile, for clamping the elastic clamping head 15 into the clamping hole 16, a guide groove 19 communicated with the clamping hole 16 is arranged on the inner wall of the sleeve 3,

in order to realize the function of withdrawing the needle, an arc-shaped elastic sheet 17, a plurality of springs 11 and an annular plate 12 are arranged, the arc-shaped elastic sheet 17 is fixedly connected to the outer wall of the sleeve 3, the bottom of the arc-shaped elastic sheet 17 is fixedly connected with a bump 18, the plurality of springs 11 are connected to the bottom of the pen container 1 at equal angles, the bottoms of the springs 11 are fixedly connected with the upper surface of the annular plate 12, the annular plate 12 is located between the liquid outlet pipe 7 and the sleeve 3, the bottom of the annular plate 12 abuts against the top of the needle head 2, when the arc-shaped elastic sheet 17 is pressed, the bump 18 presses the elastic clamping head 15 out of the clamping hole 16, then the annular plate 12 is pressed downwards under the action of the elastic force of the springs 11, the annular plate 12 drives the needle head 2 to move downwards, and the needle head 2 is separated from the pen container 1;

the pen container 1 is internally provided with a piston rod 5, the lower end of the piston rod 5 is fixedly connected with a piston head 8, in order to facilitate a user to push the piston rod 5, the outer wall of the upper end of the pen container 1 is fixedly connected with a supporting plate 101, the top of the piston rod 5 is fixedly connected with a pressing plate 6, the outer wall of the pen container 1 is provided with a slot 9, the bottom of the slot 9 and the inner bottom of the pen container 1 are at the same horizontal height, a movable rod 4 is movably inserted in the slot 9, the top of the movable rod 4 is fixedly connected with the bottom of the pressing plate 6, the bottom of the movable rod 4 and the bottom of the piston head 8 are at the same horizontal plane, a pressure sensor 10 is fixedly arranged at the bottom of the slot 9, a timing switch 13 is fixedly arranged at the upper end of the outer wall of the pen container 1, in order to facilitate the user to see an indicator lamp 14, the indicator lamp 14 is arranged on the outer wall of the timing switch 13, and a single chip microcomputer 301 is fixedly arranged in the timing switch 13, the pressure sensor 10 is electrically connected with a signal input end of the single chip microcomputer 301, the timing switch 13 is electrically connected with the single chip microcomputer 301, a signal output end of the single chip microcomputer 301 is electrically connected with the indicating lamp 14, and a button battery for supplying power is arranged inside the timing switch 13.

The working principle is as follows: when the device is used, the elastic clamping head 15 on the needle head 2 is inserted into the clamping hole 16 along the guide groove 19, the needle head 2 is sleeved on the outer wall of the liquid outlet pipe 7, a user presses the pressing plate 6 to inject insulin in the pen container 1 into a patient body, when the injection is finished, the bottom of the movable rod 4 is pressed on the pressure sensor 10, the pressure sensor 10 sends a signal to the single chip microcomputer 301, the single chip microcomputer 301 controls the timing switch 13 to start timing, the indicator lamp 14 is controlled to be on, after the timing is finished, the timing switch 13 sends a signal of finishing the timing to the single chip microcomputer 301, the single chip microcomputer 301 controls the indicator lamp 14 to be off, the user can pull the needle head 2 out of the patient body, the user presses the arc-shaped elastic sheet 17, the lug 18 clamps the elastic clamping head 15 out of the inner part of the clamping hole 16, then the annular sheet 12 is pressed downwards under the elastic force of the spring 11, and the annular sheet 12 drives the needle head 2 to move downwards, the needle 2 is separated from the barrel 1.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An improvement formula insulin pen which characterized in that: the pen container comprises a pen container (1) and a needle (2), wherein a liquid outlet pipe (7) is communicated with the bottom of the pen container (1), the upper end of the needle (2) is sleeved at the lower end of the liquid outlet pipe (7), a sleeve (3) is fixedly connected to the bottom of the pen container (1), the liquid outlet pipe (7) is positioned inside the sleeve (3), an elastic clamping head (15) is fixedly connected to the outer wall of the needle (2), a clamping hole (16) is formed in the inner wall of the sleeve (3), the elastic clamping head (15) is clamped inside the clamping hole (16), a piston rod (5) is arranged inside the pen container (1), a piston head (8) is fixedly connected to the lower end of the piston rod (5), a pressing plate (6) is fixedly connected to the top of the piston rod (5), a slot (9) is formed in the outer wall of the pen container (1), and a movable rod (4) is movably inserted in the slot (9), the top fixed connection of movable rod (4) is in the bottom of clamp plate (6), the bottom fixedly connected with pressure sensor (10) of slot (9), outer wall upper end fixedly connected with time switch (13) of pen container (1), the outer wall fixedly connected with pilot lamp (14) of time switch (13), the inside fixed mounting of time switch (13) has singlechip (301), pressure sensor (10) with the signal input part electric connection of singlechip (301), time switch (13) with singlechip (301) electric connection, the signal output part of singlechip (301) with pilot lamp (14) electric connection.

2. The improved insulin pen as claimed in claim 1, wherein: the outer wall fixedly connected with arc shell fragment (17) of sleeve pipe (3), the bottom fixedly connected with lug (18) of arc shell fragment (17), the equal angle fixedly connected with a plurality of springs (11) of bottom of pen container (1), the bottom fixedly connected with annular plate (12) of spring (11), annular plate (12) are located the outer wall of drain pipe (7) with between the inner wall of sleeve pipe (3).

3. The improved insulin pen as claimed in claim 1, wherein: the inner wall of the sleeve (3) is provided with a guide groove (19), and the upper end of the guide groove (19) is communicated with the clamping hole (16).

4. The improved insulin pen as claimed in claim 1, wherein: the timing switch (13) is internally provided with a button battery for supplying power.

5. The improved insulin pen as claimed in claim 1, wherein: the bottom of the slot (9) and the bottom of the interior of the pen container (1) are at the same horizontal height, and the bottom of the movable rod (4) and the bottom of the piston head (8) are at the same horizontal plane.

6. The improved insulin pen as claimed in claim 1, wherein: the outer wall of the upper end of the pen container (1) is fixedly connected with a supporting plate (101).