Disposable anti-pricking venous blood sampling needle

Abstract

The invention discloses a disposable anti-pricking venous blood sampling needle which comprises needle sheath, a venous needle tube, a needle handle, a fine hose, a needle seat, a puncture needle seat, a blood sampling needle tube, a rubber sheath and an anti-pricking sheath. The venous needle tube, the needle handle, the fine hose and the needle seat are sequentially connected via adhesive, the puncture needle seat and the blood sampling needle tube are adhered via adhesive, the needle sheath is sleeved on the needle handle, the puncture needle seat is connected in the needle seat in a screwed manner, and the rubber sheath protects the blood sampling needle tube therein and is sleeved at the other end of the puncture needle seat in a clamped manner. The disposable anti-pricking venous blood sampling needle is characterized in that the anti-pricking sheath is sleeved on the fine hose in a clamped manner and can slide on the fine hose back and forth, two sides of the anti-pricking sheath are folded in a pressed manner and then are fastened, after fastening, the rear of the anti-pricking sheath forms a closed ring, and a tortuous slot is axially formed on the side wall of the front of a fastener. After the needle is withdrawn, only the needle handle is required to be pulled back into the anti-pricking sheath, and the problem that the needle with blood accidentally pricks others to cause infection can be avoided, so that protection to medical staff is strengthened.

Description

technical field [0001] The invention relates to a disposable medical device, in particular to a disposable needle-proof venous blood collection needle. Background technique [0002] Most of the disposable venous blood collection needles used clinically in clinical units of domestic medical institutions are composed of needle sheath, venous needle tube, needle handle, thin hose, needle seat, puncture needle seat, blood collection needle tube and rubber sheath. After use, since the venous needle tube is exposed without a protective device, it is easy to cause secondary pollution to medical staff or personnel who handle medical waste by accident, especially the used needles of patients with AIDS, hepatitis B, hepatitis C, etc.; Anti-acupuncture intravenous infusion needles also appear on the Internet, but these products have certain defects, such as the "disposable butterfly needle safety needle cover" with the patent number 03102395.9: 1. Inconvenient operation, difficult to o...

AI Technical Summary

Problems solved by technology

[0002] Most of the disposable venous blood collection needles used clinically in clinical units of domestic medical institutions are composed of needle sheath, venous needle tube, needle handle, thin hose, needle seat, puncture needle seat, blood collection needle tube and rubber sheath. After use, since the venous needle tube is exposed without a protective device, it is easy to cause secondary pollution to medical staff or personnel who handle medical waste by accident, especially the used needles of patients with AIDS, hepatitis B, hepatitis C, etc.; Anti-acupuncture intravenous infusion needles also appear on the Internet, but these products have certain defects, such as the "disposable butterfly needle safety needle cover" with the patent number 03102395.9: 1. Inconvenient operation, difficult to observe blood return 2. The needle is not easy to fix after the puncture, and it often loosens to cause inconvenience to the nurse; the patent No. 02112068.4 "a kind of single-wing infusion needle with safety device" also has problems: the automatic assembly of the existing venous infusion needle is directly connected to the needle through the thin tube. The needle handle assembly and the needle seat are bonded and assembled, and the safety device is to penetrate the thin hose from the inner hole of the safety device, so it is difficult to connect with the existing technology, and the assembly cannot be suitable for the existing automatic assembly, and cannot be scaled. production; other patents are also facing such a few problems

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