Centrifugal burst resistance and taking-out integrated device for blood collection tube

Abstract

The invention relates to a centrifugal burst resistance and taking-out integrated device for a blood collection tube and belongs to the field of medical instruments. The centrifugal burst resistance and taking-out integrated device comprises a pressure release cavity, a pressure detection fine needle and a puncture short and thick needle, wherein the pressure detection fine needle can penetrate into the blood collection tube. The pressure release cavity is a closed cavity. The pressure detection fine needle and the puncture short and thick needle are each a hollow needle with the bottom end open. The puncture short and thick needle is connected with the pressure release cavity through a thick needle carrier arranged at the bottom of the pressure release cavity. The lower portion of the pressure detection fine needle is arranged in the puncture short and thick needle in a sleeved manner. The top end of the pressure detection fine needle penetrates the pressure release cavity and is connected with a retracting plug arranged above the pressure release cavity. The part, located inside the pressure release cavity, of the pressure detection fine needle is provided with multiple small holes, wherein gas can overflow conveniently through the small holes. According to the device, the pressure detection fine needle is sleeved with the puncture short and thick needle of a blood collectiontube rubber cover and connected with the pressure release cavity, and two problems, namely burst and inconvenient taking-out of a blood collection tube in a centrifugal machine, can be solved at thesame time.

Description

technical field [0001] The invention belongs to the field of medical appliances, and in particular relates to a device integrating centrifugal explosion-proof and taking out for blood collection tubes. Background technique [0002] Studies have shown that laboratory infections with known causes only account for 18% of all infections, while laboratory infections with unknown causes are as high as 82%. Research on unexplained laboratory infections has shown that many operations in medical laboratories can produce aerosols that can lead to laboratory environmental pollution, which is an important way of laboratory infection. Microbial aerosol refers to a relatively stable suspension system formed by liquid or solid particles uniformly dispersed in gas. Microbial aerosol is a colloidal system formed by a group of microscopic, simple unicellular or nearly unicellular organisms suspended in the air. The particle size is 0.01-100 μm, generally 0.1-30 μm. Because of its small aer...

AI Technical Summary

Problems solved by technology

The device sets the pressure detection fine needle and the blood collection tube rubber cover puncture short thick needle together, before centrifugation, the pressure detection fine needle can detect and release the pressure in the blood collection tube to prevent the blood collection tube from bursting during centrifugation; after centrifugation, the puncture is short and thick The needle is inserted into the rubber cover of the blood collection tube and taken out, which can simultaneously solve the two problems of bursting of the blood collection tube in the centrifuge and the inconvenience of taking it out

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