Automatic control method for self-destructor of syringe, infusion set and hemostix

Abstract

The automatic controlled self -destructor of syringe, infusion set and hemostix consists of hydraulic transmission part, spring seat, spring, puncture set and part for setting clinical hydraulic value and constraining force parameter. During the use of the syringe, infusion set and hemostix, the self -destructor has action state depending on the set clinical hydraulic value and the difference between the set clinical hydraulic value and the practical hydraulic value and completes self destruction automatically. In the same time, the self -destructor makes the needle seat of the syringe, the infusion set or the hemostix disintegrated automatically, the needle tip withdrawn automatically and the medium passage cut automatically. Therefore, the syringe, the infusion set and the hemostix with the self- destructor are automatic, reliable, convenient and safe.

Description

technical field [0001] The invention relates to an automatic control method of a self-destruction device of a class of medical equipment, in particular to an automatic control method of the self-destruction device of a syringe infusion set and a blood collection device. Background technique [0002] Modern medical practice has proved that in order to avoid cross-infection when injecting or removing media for humans or animals, syringes, infusion sets, and blood collection sets should be non-reusable, that is, they can only be disposed of as garbage after use. In order to meet this requirement, some self-destructing syringes, infusion sets and blood collection sets have come out one after another. [0003] Judging from the ways in which the existing self-destructing syringes realize the self-destructing function, they can be generally divided into two categories: one is the "mandrel automatic non-return" syringe, and the mandrel changes its own structure during the advancemen...

AI Technical Summary

Problems solved by technology

The defect of the "mandrel automatic non-return type" syringe is that: after the self-destruction of the syringe, the scrapped needle remains outside, which is extremely intended to cause accidental needle stick injury and infection. It can eliminate the hazards of needle stick injury and cross-infection in the process of medical waste treatment. At present, needle destruction devices and manual needle destruction operations are used to passively solve this problem.

The disadvantage of "hand-wrecking" syringes is that if the operator intentionally terminates the injection at the end of the plunger advance process so that the plunger end assembly does not interact with the hub or housing assembly, the self-destruct function cannot be achieved, nor can the needle tip. Retraction, the operator can draw in the liquid medicine again with the syringe, and perform more than two injections, objectively leaving the opportunity for the intentional repeat users, especially the intravenous drug users, to reuse the syringe

[0004] Judging from the ways in which the existing self-destructing infusion sets realize the self-destruction function, there are mainly two common defects: one is that the self-destruction function must be realized by manual operation, that is, the infusion channel is blocked by manual operation, so that the infusion set cannot be used again. Use, this defect not only makes the medical staff have to pay extra operations to destroy the necessary structure of the infusion set, but also objectively leaves the opportunity for repeated use to the intentional repeated user, and cannot fundamentally prevent the phenomenon of repeated use of the infusion set; The improvement of these self-destructing infusion sets to common infusion sets is mainly concentrated on the bottle stopper piercer and its adjacent parts, and the key part of the cross-infection disease caused by repeated use is the needle of the infusion set

[0006] The reason why the above-mentioned self-destructing syringes, infusion sets and blood collection devices have the above-mentioned defects is that an important reason is that their self-destructing devices lack an automatic control method

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