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Self-destructive mechanism of axial filling adhesive type disposable blood sampling syringe needle

A technology of bonding and needles, which is applied in the field of disposable vacuum blood collection, can solve the problems of removal, achieve precise alignment, prevent reuse, and eliminate biological safety hazards

Active Publication Date: 2014-04-30
成都和合医学检验所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The corresponding self-destruct mechanism is usually a plastic slot with a one-way lock plate, the needle enters from the side, is fixed by the one-way lock plate, and can no longer be removed from the side of the mechanism

Method used

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  • Self-destructive mechanism of axial filling adhesive type disposable blood sampling syringe needle
  • Self-destructive mechanism of axial filling adhesive type disposable blood sampling syringe needle
  • Self-destructive mechanism of axial filling adhesive type disposable blood sampling syringe needle

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Experimental program
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Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Axially filled and bonded disposable blood collection needle self-destruct mechanism consists of guide cylinder 1, upper guide surface 2, positioning hole 3, lower guide surface 4, locking tube 5, cannula 6, piston 7, annular protrusion 8, liquid The capsule 9, 502 glue 10, the sealing sheet 11, the glue outlet 12 and the annular depression 13 constitute.

[0027] Wherein, the guide cylinder 1 is a cylindrical body with open upper and lower ends, and there is an annular protrusion 8 on the inner wall of the upper port of the guide cylinder 1, and the annular protrusion 8 is connected with the needle head at the upper end of the needle seat that enters the guide cylinder 1. The snap ring 14 becomes an interference fit relationship.

[0028] The space in the guide cylinder 1 includes three parts: the upper guide curved surface 2, the positioning h...

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Abstract

The invention refers to the technical field of disposable vacuum blood sampling, in particular to a self-destructive mechanism of an axial filling adhesive type disposable blood sampling syringe needle. The self-destructive mechanism is composed of a guide cylinder, an upper guide curved face, a positioning hole, a lower guide curved face, a locking pipe, an intubation tube, a piston, an annular bulge, a sac, 502 glue water, a sealing fin, a glue outlet and an annular hollow. The space in the guide cylinder comprises the upper guide curved face, the positioning hole and the lower guide curved face; conical spaces corresponding to the upper guide curved face and the lower guide curved face are in communication with the positioning hole. The bottom part of the locking pipe is bonded with the sac made of polyethylene plastic film. According to the self-destructive mechanism provided by the invention, the inner part of the syringe needle can be blocked, so that the syringe needle is irreversibly destructed; and therefore, the reutilization of the disposable syringe needle by criminals is radically eliminated.

Description

technical field [0001] The invention relates to the technical field of disposable vacuum blood collection, in particular to an axial filling and bonding type disposable blood collection needle self-destruction mechanism. Background technique [0002] Existing blood collection needles used for vacuum blood collection tubes usually consist of a needle seat in the middle and needles communicating with both ends of the needle seat. The corresponding self-destruct mechanism is usually a plastic slot with a one-way locking piece. After the needle enters from the side, it is fixed by the one-way locking piece and cannot be removed from the side of the mechanism. The disadvantages of this structure are: [0003] 1. It does not cause any irreversible damage to the needle itself. Just use a simple tool such as a blade to cut off the locking piece in the groove, and the needle can be easily taken out and used again. [0004] 2. Self-destruct mechanism Since the plastic tank is connec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/50
Inventor 梁德富
Owner 成都和合医学检验所有限公司
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