Rotary locking type safety insulin injection needle

An insulin injection and locking technology, which is applied in the direction of needles, hypodermic injection devices, and devices introduced into the body, can solve problems such as inability to guarantee stable and reliable work, low stability and reliability, and inability to perform back-end protection. To achieve the effect of reliable locking protection, reasonable design scheme and outstanding substantive features

Active Publication Date: 2018-12-14
SANDSTONE MEDICAL SUZHOU INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent relates to insulin injection needles. Although the structure is simple, it has the following disadvantages: 1. Because the structure is too simple, it cannot be guaranteed to work stably and reliably; The back-end protection cannot be linked with the front-end protection; 3. The locking of the front-end protection structure is directional, so the stability and reliability of the locking are not high

Method used

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  • Rotary locking type safety insulin injection needle
  • Rotary locking type safety insulin injection needle
  • Rotary locking type safety insulin injection needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0073] Example: a rotation-locking safety insulin injection needle (with front needle tip protection and rear needle tip protection)

[0074] Such as Figure 1-14 As shown, the insulin injection needle includes a needle body 6, a middle sleeve 3, a front sleeve 4, a front spring 7, a rotating tube 5, a rear spring 8, a threaded sleeve 2 and a tail cap 1 (see figure 2 ). As a complete product, the insulin injection needle is usually provided with a jacket (also known as a "big sheath"), which is a sleeve structure and is usually placed outside the middle sleeve 3 to protect the insulin injection needle as a whole. In this implementation, since the jacket has nothing to do with the innovation of the present invention, it will be omitted in the following text description and accompanying drawings.

[0075] The structure of each part of the insulin injection needle of this embodiment is described in turn below:

[0076] 1. needle body 6

[0077] The needle body 6 is a tube n...

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Abstract

A rotary locking type safety insulin injection needle comprises a needle body, a middle sleeve, a front sleeve tube, a tail cover and a rear spring. The rotary locking type safety insulin injection needle is characterized in that: a rotating tube is arranged in the middle sleeve, and a bevel track is arranged on the outer edge of the rotating tube; corresponding to the bevel track, a bevel actionpart is arranged on the inner edge of the front sleeve tube; an elastic foot is arranged on the tail cover, and a rear protection baffle block is arranged on the elastic foot; and corresponding to therear protection baffle block, first track grooves and second track grooves are formed in the inner edge of the rotating tube at intervals in the circumferential direction. The rotary locking type safety insulin injection needle utilizes the backward movement of the front sleeve tube when pushing a needle to drive the rotating tube to rotate, and changes the cooperation relationship between the tail cover and the rotating tube by means of the cooperation of the first and second track grooves in the rotating tube and the rear protection baffle block on the tail cover, thereby effectively solving the problem of reliable lockout protection of the tail cover after the rotary locking type safety insulin injection needle is used.

Description

technical field [0001] The invention relates to a medical insulin injection tool, in particular to a rotary locking safety insulin injection needle. The injection needle can be used in conjunction with an insulin pen for self-administration or administration by others, wherein the insulin pen is reusable, and the injection needle is a one-time-use needle. The feature of the injection needle of the present invention is that the puncture action is used to make the rotating part rotate and lock so as to implement safety protection for the needle point after use. Background technique [0002] Diabetes is a metabolic disease characterized by high blood sugar. There is currently no cure, but injecting insulin into patients can effectively control the disease. [0003] Insulin injection tools are various, and the insulin injection needle described in the present invention is an injection tool used in conjunction with an insulin pen, wherein the insulin pen carries a prescribed amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3202A61M5/3213A61M5/3245A61M5/3257A61M5/3276A61M5/3134
Inventor 施国平安东尼·斯科特·霍斯特曼
Owner SANDSTONE MEDICAL SUZHOU INC
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