CN215275095U

CN215275095U - Insulin pen

Info

Publication number: CN215275095U
Application number: CN202120988906.4U
Authority: CN
Inventors: 王利; 刘静
Original assignee: Chengdu Shangjin Nanfu Hospital
Current assignee: Chengdu Shangjin Nanfu Hospital
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-12-24
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses an insulin pen, one end of a disinfection cap is closed, the inner side surface of the end head at the other end is provided with a first internal thread, and the outer peripheral surface of the end head at one end of a pen container connected with a needle head is provided with a first external thread; the tail end of the needle head is fixedly connected with a cap, a second internal thread in threaded fit with the first external thread is arranged on the inner side surface of the cap, and a second external thread in threaded fit with the first internal thread is arranged on the outer peripheral surface of the cap; the rotating directions of the first external thread and the second external thread are opposite, and the rotating directions of the first internal thread and the second internal thread are opposite; the inner side surface of the disinfection cap is also fixed with a layer of disinfection cotton in a surrounding way. The utility model utilizes the connecting cap to install the needle head, and the disinfection cap can be used for facilitating the patient to disinfect the end of the pen container; the utility model discloses a disinfection cap is installed and the cap is connected to threaded connection's mode, revolves to the screw thread on disinfection cap and the connection cap simultaneously and injects, and no matter the installation still when dismantling the patient all need not contact with the syringe needle to the risk of being pricked by the syringe needle has been stopped.

Description

Insulin pen

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an insulin pen.

Background

An insulin pen is a tool for injecting insulin for diabetics, and has the advantages of convenience in carrying and injection and accurate injection dosage.

At present, common insulin pens in the market are basically composed of pen holders, pen cores and needles, when a patient injects insulin, the pen cores filled with the insulin are shaken uniformly and then inserted into the pen holders, then the needles are installed on the pen holders, the tail parts of the needles are inserted into the pen cores, and finally the patient can inject the insulin in the pen cores into the body by utilizing a push rod type structure on the pen holders. The insulin pen can be repeatedly used, the refill and the needle head are disposable articles, and the refill and the needle head are discarded after one-time injection. Because the pen container needs to be used repeatedly, in order to avoid infection, at present, a patient needs to disinfect the end of the pen container by using a disinfection cotton swab dipped with disinfection alcohol before injection every time, and if the patient injects in the open air, the patient needs to carry the disinfection cotton swab and the disinfection alcohol with him or her, which is very inconvenient. In addition, the patient is dangerous when installing and dismantling the syringe needle, very easily stabs the finger, especially is more dangerous to the old patient of poor eyesight.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provides an insulin pen which is convenient to use and safe to disassemble and assemble.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the insulin pen comprises a pen container, a pen core and a needle head, wherein the needle head is detachably arranged at the end of the pen container, the pen core is placed in the pen container, the insulin pen also comprises a disinfection cap, one end of the disinfection cap is closed, a first internal thread is arranged on the inner side surface of the end at the other end of the disinfection cap, and a first external thread is arranged on the outer peripheral surface of the end at one end of the pen container, which is connected with the needle head; the tail end of the needle head is fixedly connected with a cap, a second internal thread in threaded fit with the first external thread is arranged on the inner side surface of the cap, and a second external thread in threaded fit with the first internal thread is arranged on the outer peripheral surface of the cap; the rotating directions of the first external thread and the second external thread are opposite, and the rotating directions of the first internal thread and the second internal thread are opposite; the inner side surface of the disinfection cap is also fixed with a layer of disinfection cotton in a surrounding way.

Further, the method comprises the following steps: the pen container is characterized in that an opening is formed in the end, connected with the needle, of the pen container, a sealing film is arranged at one end, close to the opening, of the pen core, and the tail portion of the needle penetrates through the top surface of the connecting cap and then extends into the connecting cap.

Further, the method comprises the following steps: the disinfection cap is a convex disinfection cap formed by communicating and connecting a connecting part at the lower part and a protecting part at the upper part, a first internal thread is arranged on the inner side surface of the connecting part, and the disinfection cotton is arranged below the first internal thread; the height of the connecting part of the disinfection cap is greater than the whole height of the connecting cap, and the height of the protection part is greater than the length of the needle head; the inner diameter of the protective part is larger than the outer diameter of the needle.

Further, the method comprises the following steps: the top of the inner side of the protection part is provided with a flexible needle head protection pad.

Further, the method comprises the following steps: the pen container comprises a pen container body and is characterized by further comprising an abdicating step arranged at the end of the pen container body, the abdicating step is arranged below the first external thread, and the outer diameter of the abdicating step is smaller than or equal to the inner diameter of the connecting part on the disinfection cap.

Further, the method comprises the following steps: the side of the pen container is provided with an observation port, and the observation port is covered with a transparent material.

The utility model has the advantages that: the utility model improves the structure of the insulin pen, adds a disinfection cap and a connecting cap, utilizes the connecting cap to install the needle head, and can facilitate the disinfection of the end of the pen container by the patient; the utility model installs the disinfection cap and the connection cap in a threaded connection mode, limits the screw thread turning directions on the disinfection cap and the connection cap, and can screw the connection cap and the pen container while rotating the disinfection cap to disinfect the pen container, thereby fixing the needle head without exposing the needle head in advance; the connecting cap can be detached from the pen container by sleeving the disinfection cap on the connecting cap and then reversely rotating when the needle is detached, and meanwhile, the connecting cap can be screwed into the disinfection cap, so that a patient does not need to contact with the needle when the needle is installed or detached, and the risk of being pricked by the needle is avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

labeled as: 100-pen container, 110-first external thread, 120-abdicating step, 130-observation port, 200-pen core, 300-needle, 400-disinfection cap, 410-first internal thread, 420-disinfection cotton, 430-connecting part, 440-protecting part, 441-needle protecting pad, 500-connecting cap, 510-second internal thread and 520-second external thread.

Detailed Description

In order to facilitate understanding of the present invention, the following description is further provided with reference to the accompanying drawings.

As shown in fig. 1, the insulin pen of the present invention comprises a pen container 100, a pen core 200 and a needle 300, wherein insulin is filled in the pen core 200, the pen core 200 can be filled in the pen container 100, one end of the pen container 100 is open, one end of the pen core 200 close to the opening of the pen container 100 is provided with a sealing film, after the patient injects insulin, the pen core 200 is filled in the pen container 100, the needle 300 is installed at the opening of the pen container 100, the needle 300 punctures the sealing film and then extends into the pen core 200, and then the patient utilizes the push rod of the insulin pen to inject insulin in the pen core 200 into the body. The peripheral surface of the pen container 100 may be provided with an observation port 130, the observation port 130 is covered with transparent materials such as glass and transparent plastics, and the patient can observe the injected insulin dosage in real time through the observation port 130 during injection.

Because the patient pricks the finger very easily when dismouting syringe needle 300, the utility model discloses an end the risk that the patient was pricked by syringe needle 300, adopted disinfection cap 400 and connection cap 500 to help the patient to carry out the dismouting of syringe needle 300. As shown in fig. 1, one end of the disinfection cap 400 is closed, the other end is provided with an opening, the inner side surface of the end of the disinfection cap 400 provided with the opening is provided with a first internal thread 410, and the outer peripheral surface of the end of the pen container 100 at which the needle 300 is mounted is provided with a first external thread 110; the connecting cap 500 is fixedly connected with the needle 300, a second internal thread 520 which is in threaded fit with the first external thread 110 on the pen container 100 is arranged on the inner side surface of the connecting cap 500, a second external thread 510 which is in threaded fit with the first internal thread 410 on the disinfection cap 400 is arranged on the outer peripheral surface of the connecting cap 500, the rotating directions of the first external thread 110 and the second external thread 520 are opposite, and the rotating directions of the first internal thread 410 and the second internal thread 510 are opposite. The disinfection cap 400 and the connection cap 500 provided with the needle 300 are disposable articles, a manufacturer directly screws the connection cap 500 provided with the needle 300 into the disinfection cap 400 during production, when the disinfection cap 400 and the connection cap 500 are in threaded connection, then the disinfection cap 400 is sleeved on the end of the pen container 100 provided with the first external thread 110, the disinfection cap 400 is rotated according to the screwing direction of the threaded matching of the first external thread 110 and the second internal thread 510, because the screwing direction of the first external thread 110 and the second external thread 520 is opposite, the screwing direction of the outer side of the connection cap 500 is the screwing and unscrewing direction of the inner side of the connection cap 500, the connection cap 500 is unscrewed with the pen container 100 while being screwed with the pen container 500, finally the connection cap 500 is fixed at the end of the pen container 100, and the connection cap 500 is separated from the disinfection cap 400, so that the patient can take down the connection cap 500 and then carry out injection. On the contrary, after the injection of the patient is finished, the disinfection cap 400 is sleeved on the connection cap 500, and the disinfection cap 400 is rotated reversely, so that the connection cap 500 can be screwed into the disinfection cap 400 and the disinfection cap 400 can be separated from the pen container 100; no matter the patient is in the installation or all directly operates disinfection cap 400 when dismantling, need not contact with syringe needle 300, disinfection cap 400 keeps apart patient's hand and syringe needle 300 to stopped syringe needle 300 and stabbed the risk that the patient pointed, effectively improved the security that the patient used insulin pen in-process.

Because the patient all needs to utilize disinfection alcohol to disinfect to the end of pen container 100 before injecting the insulin at every turn, the patient must hand-prepare disinfection cotton swab and disinfection alcohol, for the convenience of patient's disinfection, the utility model discloses set up one deck aseptic cotton 420 at the medial surface of disinfection cap 400, aseptic cotton 420 encircles and fixes on the medial surface of disinfection cap 400. When a patient installs the needle 300 before injection, the disinfection cap 400 is sleeved on the end of the pen container 100, the disinfection cotton 420 can disinfect the end of the pen container 100 when the connecting cap 500 is installed in a rotating mode, and consumers do not need to disinfect the pen container 100 independently and carry disinfection supplies with the consumers.

As shown in fig. 1, the disinfection cap 400 of the present invention is composed of a lower connecting portion 430 and an upper protection portion 440, the longitudinal section of the disinfection cap 400 is "convex", the first internal thread 410 is disposed on the inner side surface of the connecting portion 430, and the disinfection cotton 420 is disposed under the first internal thread 410. The connecting portion 430 is used for realizing the threaded connection between the disinfection cap 400 and the connecting cap 500, the protecting portion 440 is used for protecting the needle 300, the inner diameter of the protecting portion 440 is larger than the outer diameter of the needle 300 so as to avoid friction between the needle 300 and the protecting portion 440, a flexible needle protecting pad 441 can be mounted at the top of the inner side of the protecting portion 440 to protect the needle 300, and the needle protecting pad 441 can be made of sponge or cloth. In addition, the height of the connecting part 430 of the disinfection cap 400 should be greater than the overall height of the connecting cap 500, and the overall height of the first internal thread 410 is equal to the overall height of the second external thread 520, so that the connecting part 430 can wrap the connecting cap 500 integrally, and meanwhile, the disinfection cotton 420 at the lower part of the connecting part 430 is exposed out of the connecting cap 500.

In order to connect cap 500 and pen container 100 threaded connection stable, the first external screw thread 110 of pen container 100 can cooperate completely with the second internal thread 510 of connecting cap 500, the utility model discloses in still set up the step 120 of stepping down at the end of pen container 100, step 120 of stepping down is for fixing the circular boss in first external screw thread 110 below, the external diameter less than or equal to of step 120 goes up the internal diameter of connecting portion 430 on the disinfection cap 400, then when rotatory disinfection cap 400 installs the connection cap 500 that has syringe needle 300, disinfection cotton 420 in disinfection cap 400 lower part connecting portion 430 can rotate to the step 120 periphery of stepping down, makes in the complete screw in second internal thread 510 of first external screw thread 110.

Claims

1. Insulin pen, including pen container (100), refill (200) and syringe needle (300), syringe needle (300) demountable installation is in the end of pen container (100), and refill (200) are placed in pen container (100), its characterized in that: the pen container is characterized by further comprising a disinfection cap (400), one end of the disinfection cap (400) is closed, a first internal thread (410) is arranged on the inner side face of the end head of the other end of the disinfection cap, and a first external thread (110) is arranged on the outer peripheral face of the end head of one end, connected with the needle head (300), of the pen container (100); a connecting cap (500) is fixedly connected to the tail end of the needle (300), a second internal thread (510) in threaded fit with the first external thread (110) is arranged on the inner side surface of the connecting cap (500), and a second external thread (520) in threaded fit with the first internal thread (410) is arranged on the outer peripheral surface of the connecting cap (500); the rotation directions of the first external thread (110) and the second external thread (520) are opposite, and the rotation directions of the first internal thread (410) and the second internal thread (510) are opposite; a layer of sterilized cotton (420) is fixed on the inner side surface of the sterilizing cap (400) in a surrounding way.

2. The insulin pen of claim 1, wherein: the pen container is characterized in that an opening is formed in the end, connected with one end of the needle (300), of the pen container (100), a sealing film is arranged at one end, close to the opening, of the pen core (200), and the tail of the needle (300) penetrates through the top surface of the connecting cap (500) and then extends into the connecting cap (500).

3. The insulin pen of claim 1, wherein: the disinfection cap (400) is a convex disinfection cap formed by communicating and connecting a connecting part (430) at the lower part and a protecting part (440) at the upper part, a first internal thread (410) is arranged on the inner side surface of the connecting part (430), and disinfection cotton (420) is arranged below the first internal thread (410); the height of the connecting part (430) of the disinfection cap (400) is greater than the whole height of the connecting cap (500), and the height of the protection part (440) is greater than the length of the needle (300); the inner diameter of the guard (440) is larger than the outer diameter of the needle (300).

4. The insulin pen of claim 3, wherein: the top of the inner side of the protection part (440) is provided with a flexible needle protection pad (441).

5. The insulin pen of claim 3, wherein: the pen container comprises a pen container body (100), and is characterized by further comprising an abdicating step (120) arranged at the end of the pen container body (100), wherein the abdicating step (120) is arranged below the first external thread (110), and the outer diameter of the abdicating step (120) is smaller than or equal to the inner diameter of the connecting part (430) on the disinfection cap (400).

6. The insulin pen of claim 1, wherein: the side of the pen container (100) is provided with an observation port (130), and the observation port (130) is covered with a transparent material.