Improved rotary safe insulin injection needle

A technology of insulin injection and rotation, which is applied in the direction of needles and instruments introduced into the body, and can solve problems such as inability to guarantee stable and reliable work, low stability and reliability, and inability to carry out rear-end protection, achieving outstanding substantive Features, reasonable design scheme, and the effect of significant technological progress

Active Publication Date: 2019-02-12
STERILANCE MEDICAL SUZHOU
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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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  • Improved rotary safe insulin injection needle
  • Improved rotary safe insulin injection needle
  • Improved rotary safe insulin injection needle

Examples

Experimental program
Comparison scheme
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Embodiment

[0071] Example: An Improved Rotary Safety Insulin Injection Needle (With Front-end Needle Tip Protection, Without Back-end Needle Tip Protection)

[0072] Such as Figure 1-16 As shown, the insulin injection needle includes a needle body 1, a middle sleeve 3, a threaded sleeve 2, a front sleeve 4, a spring 6 and a rotating tube 5 (see image 3 ). 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.

[0073] The structure of each part of the insulin injection needle of this embodiment is described in turn below:

[0074] 1. Needle 1

[0075] The needle body 1 is a tube needle for injecting insulin, a...

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Abstract

The invention relates to an improved rotary safe insulin injection needle which comprises a needle body, a middle sleeve, a front sleeve and a spring. The improved rotary safe insulin injection needleis characterized in that a rotary tube is arranged in the middle sleeve, and an inclined plane track is arranged on an outer edge of the rotary tube; an inclined surface acting part is arranged on aninner edge of the front sleeve corresponding to the inclined surface track; a first pair of front end limiting structures is arranged between the rotary pipe and the front sleeve, and a second pair of front end limiting structures and a locking anti-retreat structure are arranged between the front sleeve and the middle sleeve. By the adoption of the improved rotary safe insulin injection needle,when the needle is pushed, the front sleeve moves backwards to drive the rotary pipe to rotate, so that the first pair of the front end limiting structures generates dislocation and failure in a circumferential direction; and then the front sleeve is locked by the second pair of the front end limiting structures and the locking anti-retreat structure, thereby effectively solving the problem of locking the protection of the front sleeve after use.

Description

technical field [0001] The invention relates to a medical insulin injection tool, in particular to an improved rotary 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 rotating part inside the injection needle is rotated by the puncture action, so that it enters the front-end needle tip protection mode 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3202A61M5/3205A61M5/3287A61M2005/3289
Inventor 施国平安东尼·斯科特·霍斯特曼杨新常
Owner STERILANCE MEDICAL SUZHOU
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