A Double Protection Vacuum Blood Collection Tube

Abstract

The invention discloses a dual-protection vacuum blood collection tube, which comprises a tube body, an inner liner tube and a seal ring, the inner liner tube is contained in the tube body, the orifice brim of the inner liner tube is wrapped by the seal ring, moreover, the inner liner tube is elastically fastened on the inner wall of the tube body by the seal ring, a PP (polypropylene) test tube is adopted as the inner liner tube, a plastic tube is adopted as the tube body, and furthermore, the upper end of the tube body is provided with a protective gas layer. The dual-protection vacuum blood collection tube is integrated with the non-fragility of the single PET (polyethylene terephthalate) plastic tube and the waterproofness of the PP test tube, and utilizes the protective gas layer to isolate a blood sample from contacting with the air, thus ensuring the accuracy of a blood test result, the entire structure is simple, and the practicability is high.

Description

technical field

[0001] The invention relates to the field of medical instruments, in particular to a double-protection vacuum blood collection tube. Background technique

[0002] At present, the use of vacuum blood collection tubes and bidirectional blood collection needles as tools for clinical blood testing has replaced the disposable syringes used in early clinical practice. The convenience and safety of vacuum blood collection tubes have been widely used in clinical testing. However, ordinary vacuum blood collection tubes often contain residual air during use, and the contact of these residual air with the blood in the vacuum blood collection tube may cause platelet activation.

[0003] Moreover, traditional vacuum blood collection tubes generally use PET plastic single tubes, which have absorptivity and permeability to the liquid in the test tube, thus affecting the accuracy of the test results. But if the vacuum blood collection tube adopts PP test tube, it is easy to...

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