Sealed dismounting type blood collection device

Abstract

The invention discloses a sealed dismounting type blood collection device which comprises an air bag, a connecting tube, a floating driving mechanism, a blood collection assembly and a regulating assembly, wherein the upper end and the periphery of the connecting tube are sealed; the lower end of the connecting tube is provided with an opening; and the blood collection assembly comprises an upperblood collection tube, a connecting ring, a sealing ring, a conical elastic ring film, a lower blood collection tube, a sealing internal threaded ring, a sealing abutting and pressing ring, a sealingring and a clamp connection sealing ring. The sealing internal threaded ring arranged on the periphery of the lower side of the bottom of the conical elastic ring film is screwed onto an external threaded ring arranged at the upper end of the lower blood collection tube through screw threads; the sealing abutting and pressing ring arranged on the periphery of the inner side of the bottom of the conical elastic ring film is tightly abutted against the upper end surface of the sealing ring arranged in a sealing ring groove; and the conical elastic ring film is embedded into a clamp connection sealing groove clamped and connected in the periphery of the lower end of the connecting ring in a sealed way through the clamp connection sealing ring arranged on the periphery of the upper end of theconical elastic ring film, so that the sealing performance is ensured when the movable connection of the conical elastic ring film and the lower blood collection tube is realized, and the replacementof the conical elastic ring film is more convenient.

Description

technical field [0001] The invention relates to a sealed and detachable blood sampling device. Background technique [0002] Blood collection tube is a medical device commonly used in hospitals to collect blood for patients. Blood collection tube is generally composed of a tube body and a cap. Existing blood collection tubes are made of plastic or glass. The tube body of a blood collection tube is generally an integral tubular structure. When it is necessary to collect different volumes of liquid, it is necessary to replace the tube body with different specifications and lengths, which brings inconvenience to the use. If a volume-adjustable blood collection tube can be developed, the flexibility and range of use of the blood collection tube will be greatly improved. , In addition, it is necessary to improve the convenience of disassembly and installation. Contents of the invention [0003] Aiming at the shortcomings of the above-mentioned prior art, the problem to be solv...

AI Technical Summary

Problems solved by technology

[0002] Blood collection tube is a medical device commonly used in hospitals to collect blood for patients. Blood collection tube is generally composed of a tube body and a cap. Existing blood collection tubes are made of plastic or glass. The tube body of a blood collection tube is generally an integral tubular structure. When it is necessary to collect different volumes of liquid, it is necessary to replace the tube body with different specifications and lengths, which brings inconvenience to the use. If a volume-adjustable blood collection tube can be developed, the flexibility and range of use of the blood collection tube will be greatly improved. In addition, it is necessary to improve the convenience of disassembly and installation

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