Insulin pen injection needle capable of preventing needle stick injury

Abstract

The utility model belongs to the technical field of medical injection instruments, and particularly relates to an insulin pen injection needle capable of preventing needle stick injury, which comprises an insulin pen main body, and the end part of the insulin pen main body is connected with a needle instrument; the insulin pen further comprises a supporting cylinder, the insulin pen body is fixedly installed in the supporting cylinder, a telescopic cylinder is arranged at the opening of the end of the supporting cylinder in a telescopic mode through an elastic piece, the telescopic cylinder is used for protecting the needling instrument, and when the insulin pen body is not used, the needling instrument retracts into the telescopic cylinder under the supporting effect of the elastic piece; the protection effect on the insulin pen main body is achieved; a contact ring is detachably installed at the end of the telescopic cylinder, and when insulin injection is conducted, through the arranged contact ring, friction contact force exists between the contact ring and the skin of a patient, and pre-positioning can be conducted during insulin injection.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical injection equipment, in particular to an insulin pen injection needle capable of preventing needle punctures. Background Art

[0002] With the high incidence of diabetes, the emergence of insulin injection pens has made it increasingly common for patients to self-inject insulin at home. However, since patients and their families have not received professional training like medical staff, especially the elderly, when replacing the needles used in conjunction with insulin injection pens, there are many safety hazards in the use of insulin needles.

[0003] Specifically, the existing insulin injection pen needle includes a needle, which is composed of a needle holder and a needle tube. The overall volume of the insulin injection pen needle is very small, and the needle tip is very sharp. Patients are easily directly pricked by the needle during operation, which poses a safety hazard. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide an insulin pen injection needle that prevents needle stick injuries, aiming to solve the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model provides the following technical solutions.

[0006] An insulin pen injection needle for preventing needle stick injuries comprises an insulin pen body, the end of the insulin pen body is connected with a needle, and a needle holder is fixedly installed at the end of the insulin pen body, and the needle holder is used to fix the insulin pen body;

[0007] It also includes a support cylinder, the insulin pen body is fixedly installed in the support cylinder, and a telescopic cylinder is telescopically arranged at the open end of the support cylinder through an elastic member, and the telescopic cylinder is used to protect the needle. When the insulin pen body is not in use, the needle is retracted into the telescopic cylinder under the support of the elastic member, thereby protecting the insulin pen body;

[0008] The end of the telescopic cylinder is detachably provided with a contact ring. When performing insulin injection, the contact ring is first pressed against the patient's skin through the contact ring, thereby increasing the contact area with the patient's skin. Since there is frictional contact force between the contact ring and the patient's skin, the insulin injection can be pre-positioned to avoid deviation, thereby having a certain positioning effect before the injection.

[0009] Furthermore, a support base ring is fixedly arranged on the inner side of the open end of the telescopic cylinder extending into the support cylinder body, and the elastic member includes a first connecting spring and a second connecting spring. The first connecting spring is located between the bottom of the needle seat and the support base ring, the top end of the first connecting spring is connected to the needle seat, and the bottom end of the first connecting spring is connected to the support base ring.

[0010] Furthermore, the second connecting spring is located above the top of the needle seat, one end of the second connecting spring is connected to the top of the needle seat, and the other end of the second connecting spring is connected to the telescopic tube.

[0011] Furthermore, a mounting ring is coaxially fixed on the contact ring, the inner ring of the mounting ring is integrally provided with a second limiting ring, the end of the telescopic cylinder has an annular seat matching with the mounting ring, the outer ring of the annular seat is integrally provided with a first limiting ring matching with the second limiting ring, when the mounting ring is put on the annular seat, the second limiting ring and the first limiting ring can be fixed in position, thus making it convenient to install the contact ring on the end of the telescopic cylinder.

[0012] Furthermore, the end of the telescopic cylinder has a circular groove, and a needle hole is opened on the circular groove. When insulin is injected, the needle extends out from the needle hole.

[0013] Compared with the prior art, the insulin pen injection needle of the utility model for preventing needlestick injuries has the following beneficial effects:

[0014] First, before the needle comes into contact with the patient's skin, the needle is retracted into the telescopic barrel, which can protect the needle and prevent the needle from stabbing the patient. When in use, the end of the telescopic barrel is first placed against the patient's skin, and as the needle continues to move forward, the needle can be extended from the end of the telescopic barrel to pierce the patient's skin to achieve insulin injection.

[0015] Secondly, by setting the contact ring, the contact ring first rests on the patient's skin, increasing the contact area with the patient's skin. Since there is friction contact force between the contact ring and the patient's skin, it has a certain positioning effect before the injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0017] Figure 1 This is a three-dimensional structural diagram of an insulin pen injection needle for preventing needle stick injuries according to the utility model;

[0018] Figure 2 A cross-sectional view of an insulin pen injection needle for preventing needle stick injuries according to the utility model;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 It is a partial cross-sectional view of the insulin pen injection needle for preventing needle stick injuries of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the contact ring in the insulin pen injection needle for preventing needle stick injuries of the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the structure of the elastic member in the injection needle of the insulin pen for preventing needle stick injuries.

[0023] The reference numerals are as follows:

[0024] 100. Insulin pen body; 101. Needle; 102. Needle holder;

[0025] 200, supporting cylinder;

[0026] 300, telescopic cylinder; 301, supporting base ring; 302, first connecting spring; 303, second connecting spring; 304, annular seat; 305, first limiting ring; 306, circular groove; 3061, pinhole;

[0027] 400, contact ring; 401, mounting ring; 402, second limiting ring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0030] like Figure 1 and Figure 2 As shown, in one embodiment provided by the utility model, an insulin pen injection needle for preventing needlestick injuries includes an insulin pen body 100, and a needle 101 is connected to the end of the insulin pen body 100. In addition, a needle seat 102 is fixedly installed at the end of the insulin pen body 100, and the needle seat 102 is used to fix the insulin pen body 100.

[0031] It is understandable that the needle 101 of conventional means is directly exposed when not in use, and it is easy to cause puncture injuries to the patient when the patient takes it, which is inconvenient to use.

[0032] Based on this, the insulin pen injection needle for preventing needlestick injuries provided by the utility model also includes a supporting cylinder 200. The insulin pen body 100 is fixedly installed in the supporting cylinder 200. A telescopic cylinder 300 is telescopically arranged at the open end of the supporting cylinder 200 through an elastic member. The telescopic cylinder 300 is used to protect the needle 101. When the insulin pen body 100 is not in use, the needle 101 is retracted into the telescopic cylinder 300 under the support of the elastic member, thereby protecting the insulin pen body 100.

[0033] Further, such as Figure 2 , Figure 4 and Figure 6 As shown, in the embodiment of the utility model, a support base ring 301 is fixedly arranged on the open inner side of the end of the telescopic cylinder 300 extending into the support cylinder body 200, and the elastic member includes a first connecting spring 302 and a second connecting spring 303, the first connecting spring 302 is located between the bottom of the needle seat 102 and the support base ring 301, the top end of the first connecting spring 302 is connected to the needle seat 102, and the bottom end of the first connecting spring 302 is connected to the support base ring 301; correspondingly, the second connecting spring 303 is located above the top of the needle seat 102, one end of the second connecting spring 303 is connected to the top of the needle seat 102, and the other end of the second connecting spring 303 is connected to the telescopic cylinder 300.

[0034] When the insulin pen injection needle of the present invention does not contact the patient's skin, the needle 101 is retracted into the telescopic cylinder 300, which can protect the needle 101 and prevent the needle 101 from stabbing the patient. When in use, the end of the telescopic cylinder 300 is first placed against the patient's skin. As the needle is pushed forward, the needle 101 can be extended from the end of the telescopic cylinder 300 to pierce the patient's skin to achieve insulin injection.

[0035] Please continue reading Figure 1-Figure 6 In the embodiment of the utility model, a contact ring 400 is detachably installed at the end of the telescopic cylinder 300. When performing insulin injection, the contact ring 400 is first pressed against the patient's skin through the contact ring 400, thereby increasing the contact area with the patient's skin. Since there is frictional contact force between the contact ring 400 and the patient's skin, the insulin injection can be pre-positioned to avoid deviation, thereby having a certain positioning effect before the injection.

[0036] Please continue reading Figure 3 and Figure 5In the embodiment of the utility model, a mounting ring 401 is coaxially fixedly provided on the contact ring 400, and the inner ring of the mounting ring 401 is integrally provided with a second limiting ring 402. The end of the telescopic cylinder 300 has an annular seat 304 that matches the mounting ring 401, and the outer ring of the annular seat 304 is integrally provided with a first limiting ring 305 that matches the second limiting ring 402. When the mounting ring 401 is sleeved on the annular seat 304, the second limiting ring 402 and the first limiting ring 305 can be fixed in position, so it is convenient to install the contact ring 400 on the end of the telescopic cylinder 300.

[0037] Furthermore, the end of the telescopic cylinder 300 has a circular groove 306 , and a needle hole 3061 is formed in the circular groove 306 . When performing insulin injection, the needle 101 extends out from the needle hole 3061 .

[0038] The above solutions are only an illustration of a preferred example, but are not limited thereto. When implementing the present utility model, appropriate replacement and / or modification can be performed according to user needs.

[0039] The number of devices and processing scales described here are used to simplify the description of the utility model. Applications, modifications and variations of the utility model are obvious to those skilled in the art.

[0040] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. An insulin pen injection needle for preventing needle stick injuries, characterized in that: include: An insulin pen body (100), wherein a needle (101) is connected to the end of the insulin pen body (100), and a needle seat (102) is also fixedly mounted on the end of the insulin pen body (100); A support cylinder (200), wherein the insulin pen body (100) is fixedly mounted in the support cylinder (200), and a telescopic cylinder (300) is telescopically arranged at the open end of the support cylinder (200) via an elastic member; A contact ring (400) is detachably mounted on the end of the telescopic cylinder (300).

2. The insulin pen injection needle for preventing needlestick injuries according to claim 1, characterized in that: A support base ring (301) is fixedly arranged on the inner side of the open end of the telescopic cylinder (300) extending into the support cylinder body (200); The elastic member comprises a first connecting spring (302) and a second connecting spring (303); The first connecting spring (302) is located between the bottom of the needle seat (102) and the supporting base ring (301), the top end of the first connecting spring (302) is connected to the needle seat (102), and the bottom end of the first connecting spring (302) is connected to the supporting base ring (301).

3. The insulin pen injection needle for preventing needlestick injuries according to claim 2, characterized in that: The second connecting spring (303) is located above the top of the needle seat (102), one end of the second connecting spring (303) is connected to the top of the needle seat (102), and the other end of the second connecting spring (303) is connected to the telescopic cylinder (300).

4. The insulin pen injection needle for preventing needlestick injuries according to claim 3, characterized in that: A mounting ring (401) is coaxially fixedly arranged on the contact ring (400); The inner ring of the mounting ring (401) is integrally formed with a second limiting ring (402), and the end of the telescopic cylinder (300) has an annular seat (304) that matches the mounting ring (401); The outer ring of the annular seat (304) is integrally formed with a first limiting ring (305) that matches the second limiting ring (402).

5. The insulin pen injection needle for preventing needle stick injuries according to claim 4, characterized in that: The end of the telescopic cylinder (300) is provided with a circular groove (306), and a pinhole (3061) is provided on the circular groove (306).

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