safety phlebotomy needle

Abstract

The invention discloses a safe type vein blood taking needle which comprises a vein blood taking needle component and a vacuum blood taking tube connected with the vein blood taking needle component in a matched mode. The vein blood taking needle component comprises a vein blood taking needle body, a vein blood taking needle base and a catheter communicated with the vein blood taking needle base. The vein blood taking needle further comprises an anti-puncturing component which is arranged outside the vein blood taking needle component in a sleeved mode. The anti-puncturing component comprises an outer shell which is arranged on the vein blood taking needle base in a sleeved mode. The vein blood taking needle base slides in the outer shell, so that the vein blood taking needle is completely stored in the outer shell. Anti-puncturing protection is carried out through the vein blood taking needle base and the arranged outer shell, and the using safety of the blood taking needle is improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a disposable safe venous blood collection needle. Background technique [0002] In the medical field, medical personnel collect and obtain human physiological and pathological information through various means for correct diagnosis of diseases. Among them, there are usually three ways to collect blood samples: (1) subcutaneous blood collection, which is mostly used for the analysis of blood components (2) Venous blood collection, which can conduct detailed detection of hematology, blood pathogens and other related subject indicators, and is widely used in clinical practice , Pen-type or split-type venous blood collection needles are mostly used; (3) Arterial blood collection is mostly used to detect arterial blood gas indicators in critical emergencies, and the application is seldom, and special syringes for arterial blood collection are mostly used for collection. The purpose of collecting a...

AI Technical Summary

Problems solved by technology

[0004] However, after the blood collection is over, the medical staff need to pull out the puncture needle and the blood collection needle and dispose of them. Stab wounds, causing cross-infection, are more dangerous

[0005] Chinese patent 2012100938412 proposes a disposable anti-acupuncture venous blood collection needle, by setting an anti-acupuncture sheath with a circuitous channel so that the puncture needle can block the puncture needle after being pulled out so that the medical staff can avoid being stabbed. It uses a circuitous channel. In actual operation, the puncture needle cannot be well received in the sheath.

[0006] For example, Chinese application 201210133995X discloses a disposable safe blood collection needle, which locks the puncture needle in the protective sheath through the combination of the lock provided on the needle tube and the wing sheath, but this structure needs to be provided with locks on multiple parts buckle, and need to use the needle holder with lock separately, the operation process is complicated, which is not conducive to the actual operation

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