Rubber plug locking type auto-destruct syringe

Abstract

The invention discloses a rubber plug locking type auto-destruct syringe. The syringe comprises an outer sleeve, a core rod and a rubber plug, and a conical head in threaded connection with a syringe needle is arranged at the front end of the barrel. The syringe is characterized in that an elastic snap ring is arranged on the inner wall of the middle part of a conical head chamber in the conical head; the center of the elastic snap ring is provided with a clamping hole; the front end of the rubber plug is assembled with a clamping seat; the rear end of the rubber plug is assembled with the core rod; a clamping seat front bulge loop of the clamping seat forwardly penetrates the clamping hole of the elastic snap ring; then the elastic snap ring can be clamped on a reverse step of the clamping seat, so that the clamping seat can be prevented from moving back to the outer sleeve. The elastic snap ring is composed of 3-12 arc-shaped cards which are mutually separated and have the same shape. The elastic snap ring has the effect of a one-way valve, so that the clamping seat can only move forward and cannot move backward. The auto-destruct syringe is advantageous in that the auto-destruct syringe can be automatically destructed after a medical worker uses the syringe, the medical worker does not need to break the core rod, the syringe can be prevented from being used by the second time, the working intensity of the medical worker can be reduced, and the personal safety of the medical work is guaranteed.

Description

Technical field [0001] The invention relates to a medical device for injection, in particular to a locking rubber plug type self-destructing syringe that prevents reuse. Background technique [0002] At present, the commonly used syringes in the medical field basically consist of a jacket, a rubber stopper and a core rod. The rubber plug is sleeved on the head of the core rod to form a push rod, and the push rod is inserted into the inner cavity of the jacket. Before use, the medical staff tighten the needle and the cone at the front end of the syringe cover. After the liquid is sucked and injected, in order to prevent the medical supplies from being used again, the medical staff will pull out the push rod and break the core rod. Although this can prevent the secondary use of the product, it also virtually increases the work intensity of medical staff, such as excessive force may cause harm to medical staff. Summary of the invention [0003] The purpose of the present invention ...

AI Technical Summary

Problems solved by technology

Although this can prevent the secondary use of the product, it also increases the work intensity of the medical staff virtually. If the force is too strong, it may cause injury to the medical staff.

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