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Rotary locking type safety insulin injection needle

An insulin injection and locking technology, applied in the directions of needles, hypodermic injection devices, and devices introduced into the body, etc., can solve the problems of inability to carry out back-end protection, low stability and reliability, and inability to ensure stable and reliable work. Achieve the effect of highlighting substantive features, reasonable design plans, and significant technological progress

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 1

[0063] Example 1: A rotation-locking safety insulin injection needle (with front needle tip protection and rear needle tip protection)

[0064] 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.

[0065] The structure of each part of the insulin injection needle of this embodiment is described in turn below:

[0066] 1. needle body 6

[0067] The needle body 6 is a tube...

Embodiment 2

[0099] Example 2: A rotation-locking safety insulin injection needle (with front needle tip protection but without rear needle tip protection)

[0100] 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 and a threaded sleeve 2 .

[0101] The difference between embodiment 2 and embodiment 1 is that: the tail cap 1 and the rear spring 8 are eliminated, and only the front needle point protection structure is provided, and the rear needle point protection structure is not provided. Others are basically the same as in Embodiment 1, and will not be described again here.

[0102] Relevant content and change description in the above embodiment are as follows:

[0103] 1. In the above two embodiments, the slope track 51 is formed by a guide surface on the outer edge of the rotating tube 5, and the slope action part 45 corresponding to the guide surface is a convex part, and the convex part slides and con...

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Abstract

A rotary locking type safety insulin injection needle comprises a needle body, a middle sleeve, a front sleeve tube and a front 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 action part is arranged on the inner edge of the front sleeve tube; an elastic arm is arranged at the front part of the rotating tube, and a front protection baffle block is arranged on the elastic arm; and correspondingto the front protection baffle block, guiding grooves and limiting grooves are formed in the inner edge of the front sleeve tube at intervals in the circumferential direction. The rotary locking typesafety 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 front sleeve tube and the rotating tube by means of the cooperation of the guiding grooves and the limiting grooves in the front sleeve tube and the front protection baffle block on the rotating tube, thereby effectively solving the problem of reliable lockout protection of the front sleeve tube 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
CPCA61M5/3202A61M5/3213A61M5/3245A61M5/3257A61M5/3276A61M2005/3247A61M2005/3254A61M2005/3267A61M5/326A61M5/3271A61M5/50A61M2205/273
Inventor 施国平安东尼·斯科特·霍斯特曼
Owner SANDSTONE MEDICAL SUZHOU INC
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