Safety lancet having a fail-safe reuse preventing function

Abstract

The present invention relates to a safety lancet wherein, after the safety lancet has been used to collect blood, reuse of the safety lancet can essentially be prevented by providing a fail-safe reload preventing structure that does not allow the reloading of a moving block having a blood-collecting needle, and wherein pain during insertion of the blood-collecting needle into the skin can be minimized by guiding the moving block so as to move in a linear motion without vibration. The present invention comprises: an outer case on the inside of which is formed a space; an inner case which moves so as to slide along the space in the outer case, and on the front end of which is formed a through hole; and a sliding block which is coupled in such a way as to be able to move in a straight line along the inside of the inner case and at the same time is resiliently supported inside the outer case by means of a coil spring, and provided towards the front end of which there is a blood-collecting needle that has a protruding end, and provided on both sides at the rear end of which there is a pair of loading hooks that are loaded onto engagement projections of the inner case; ; and, when the sliding block disengages from part of the inner case as the inner case retreats, the sliding block advances under the resilient force of the coil spring such that the blood-collecting needle is made to momentarily protrude outside the inner case before retreating back into the inner case.

Description

technical field [0001] The invention relates to a safety blood collection needle, in particular to a safety blood collection needle with dual prevention of repeated use, that is, it can fundamentally prevent the repeated use of the blood collection needle during blood collection, thereby avoiding the spread of diseases. Background technique [0002] Generally, blood collection needles are mainly used in hospitals to collect blood from patients for various treatments. For example, a blood collection needle is inserted into subcutaneous tissue such as a patient's finger or toe, and a small amount of blood is collected from capillaries. The collected blood can be used to measure blood sugar, cholesterol or triglyceride (TG) of the patient by using a blood analysis device. [0003] But usually after blood collection is completed, the used blood collection needles may be put into use again after being washed with water or simply sterilized. Therefore, diseases such as acquired ...

AI Technical Summary

Problems solved by technology

[0008] Since the guide piece 4 is exposed on the outside of the blood collection needle as a trigger device, once the user accidentally presses the outer pressing plate 5, the moving plug 3 may be unlocked, which is very dangerous

Images