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Accidental stabbing-prevention insulin pen needle

A technology of insulin and pen needles, which is applied in the field of medical devices, can solve problems such as false triggering, wrongly stabbing users, waste of insulin pen needles, etc., and achieve the effects of simplified accessories, ingenious ideas, and simple structure

Pending Publication Date: 2020-06-05
PROMISEMED HANGZHOU MEDITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The needle tip protection structure only protects the needle tip after triggering, but in the initial state, the needle tip is exposed, and there is a risk of accidentally stabbing the user before use;
[0005] (2) The trigger mechanism used to trigger the protective cover is usually exposed, so when it is subjected to external force, it is easy to cause false triggering. Once it is falsely triggered, it will inevitably cause waste of insulin pen needles

Method used

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  • Accidental stabbing-prevention insulin pen needle
  • Accidental stabbing-prevention insulin pen needle
  • Accidental stabbing-prevention insulin pen needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] like figure 1 , figure 2 As shown, an insulin pen needle for preventing false punctures in this embodiment includes a needle hub 10 , a hub 20 , a needle body 70 , a shield 30 , a trigger seat 40 , a housing 50 and an elastic member 60 . It should be noted that, in this embodiment, the end in contact with the patient is defined as the front end, and the end close to the insulin pen injector is defined as the rear end.

[0054] Wherein, the structure of needle seat 10 is as follows: figure 2 , image 3 As shown, it includes a front seat body 11 and a rear seat body 12, and a limiting step 15 facing the side of the front seat body is formed between the front seat body and the rear seat body. Wherein, the rear seat body is provided with a connecting cavity 16, and the connecting cavity is provided with an internal thread 17 for connecting with an insulin pen type syringe.

[0055] In this embodiment, the needle body 70 is disposed axially through the needle seat 10 , t...

Embodiment 2

[0078] The principle of this embodiment is the same as that of Embodiment 1, the difference is that, if Figure 21 As shown, the two sides of the guide protrusion 14 are provided with a pair of mutually symmetrical first guide surfaces 141, and correspondingly, the two sides of the guide arm 43 are provided with mutually symmetrical The second guide surface 44 . The advantage of this structure is that the rotation direction of the trigger seat is not unique, and can be rotated clockwise or counterclockwise relative to the needle seat.

[0079] like Figure 22 As shown, in order to realize the two-way rotation of the trigger seat, correspondingly, a pair of mutually symmetrical second limiting grooves 23 are provided on both sides of the first limiting groove 21 .

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Abstract

The invention relates to the technical field of medical treatment instruments, and specifically discloses an accidental stabbing-prevention insulin pen needle. The accidental stabbing-prevention insulin pen needle at least comprises a needle seat, a needle body, a seat sleeve, a protecting cover, a triggering seat and an elastic component, wherein the elastic component is located between the needle seat and the triggering seat. According to the accidental stabbing-prevention insulin pen needle, the protecting cover completely covers the front end of the needle body in an original state and a triggering state, so that the needle head is not exposed in the original state and the triggering state in use and has no possibility of accidentally injuring a user; furthermore, the triggering seat is located in the protecting cover, and a triggering structure is completely hidden in the triggering seat, so that the situation that a protecting structure of the insulin pen needle is triggered dueto accidental touching of a triggering structure can be effectively prevented; and the needle seat, the triggering seat, the protecting cover and the seat sleeve are combined to form an invisible triggering manner, so that the accidental stabbing-prevention insulin pen needle has the technical advantages that accessories are simplified, the structure is simple, the conception is skillful, and thestructural safety is good.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an insulin pen needle preventing false punctures. Background technique [0002] Insulin pen needle is a conventional insulin injection device used in conjunction with insulin pen injector to inject insulin in the treatment of diabetes. Its main function is to accurately infuse insulin into the body of diabetic patients through the injection device to achieve patient control blood sugar purpose. Based on safety needs, in order to prevent the needle from being exposed after injection and accidentally injuring users, the existing insulin pen needles are usually provided with a safety protection structure to prevent the needle from being exposed after injection. In the prior art, there are various types of safety protection structures, and the advantages and disadvantages of each type of safety protection structures are also different. [0003] Insulin pen needles in the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3234A61M5/3202A61M2005/3235
Inventor 胡超宇
Owner PROMISEMED HANGZHOU MEDITECH
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