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Vacuum blood collection tube and method thereof capable of directly separating blood plasma

A technology for vacuum blood collection tubes and plasma separation, which is applied in the preparation of test samples, medical science, sensors, etc., can solve the problem that blood collection containers cannot directly separate plasma, etc., and achieves low cost, good effect, and easy to obtain effects.

Inactive Publication Date: 2012-11-07
SHANGHAI KEHUADIAGNOSITIC MEDICAL PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiency and defect that the blood collection container cannot directly separate the plasma in the prior art, and provide a novel, safe and reliable vacuum blood collection tube and its method that can directly separate the plasma

Method used

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  • Vacuum blood collection tube and method thereof capable of directly separating blood plasma
  • Vacuum blood collection tube and method thereof capable of directly separating blood plasma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The tube body of the blood collection tube is made of borate glass, the plug of the blood collection tube is made of chlorobutyl rubber, the inner tube of the blood collection tube is made of high-density polyethylene, and the inner tube is filled with asymmetric polysulfone filter membrane and polyethylene terephthalate in sequence Fiber filter element and filter paper buffer sheet sprayed with dipotassium ethylenediaminetetraacetic acid anticoagulant, the inner tube wall is sprayed with dipotassium ethylenediaminetetraacetic acid anticoagulant, and the inner tube prepared above is put into the blood collection tube body, Place the rubber stopper above the tube body of the blood collection tube, put it into the vacuum machine to preset vacuum and press the stopper.

Embodiment 2

[0035] The tube body of the blood collection tube is made of polyethylene terephthalate, the plug of the blood collection tube is made of chlorinated butyl rubber, the inner tube of the blood collection tube is made of high-density polyethylene, and the inner tube is filled with asymmetric polysulfone filter membrane, polyethylene p-phenylene Diformate fiber filter element and filter paper buffer sheet sprayed with sodium heparin, the inner tube wall is sprayed with sodium heparin anticoagulant, the inner tube prepared above is put into the blood collection tube body, and the rubber plug is placed in the blood collection tube body Above, put it into the vacuum machine to preset the vacuum and press the plug.

Embodiment 3

[0037] The blood collection tube body is made of polyethylene glycol modified polyethylene terephthalate, the blood collection tube plug is made of chlorinated butyl rubber, and the inner tube of the blood collection tube is made of high-density polyethylene, and the inner tube is sequentially filled with asymmetric polysulfone filter Membrane, polyethylene terephthalate fiber filter element and filter paper buffer sheet sprayed with lithium heparin, the inner tube wall is sprayed with lithium heparin anticoagulant, the inner tube prepared above is put into the blood collection tube body, and the rubber stopper Place it above the tube body of the blood collection tube, put it into the vacuum machine to preset the vacuum and press the stopper.

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Abstract

The invention relates to the technical field of clinical medical instruments, in particular to a vacuum blood collection tube and a method thereof capable of directly separating blood plasma. The vacuum blood collection tube comprises a blood collection tube body, an inner tube, a rubber plug and a filter element. The vacuum blood collection tube is characterized in that the blood collection tube inner tube is arranged in the blood collection tube body, the rubber plug is disposed at the top of the blood collection tube body, the structure of the rubber plug is close to a plug shape, a semicircle groove is disposed at the center of the upper portion of the rubber plug structure, left and right ends of the lower portion of the rubber plug are embedded into the blood collection tube body to be connected with the blood collection tube inner tube, a blood plasma outlet is disposed in the middle of the bottom of the blood collection tube inner tube, a blood plasma collecting chamber is mounted below the blood plasma outlet, a filtering membrane is arranged on the upper portion of the blood plasma outlet of the blood collection tube inner tube, the filter element is arranged on the upper portion of the filtering membrane, a buffer plate is mounted on the filter element, consequently a blood collection chamber is formed in the blood collection tube inner tube, and a layer of anticoagulant is disposed on the inner wall of the blood collection tube inner tube. The vacuum blood collection tube and the method thereof capable of directly separating the blood plasma have the advantages that physical form differences of blood visible components and plasma components are utilized, the blood plasma can be rapidly separated, and the vacuum blood collection tube and the method thereof are simple, convenient, safe and rapid.

Description

[technical field] [0001] The invention relates to the technical field of clinical medical devices, in particular to a vacuum blood collection tube capable of directly separating plasma and a method thereof. [Background technique] [0002] The detection of blood samples is a routine technical means of clinical testing in medical institutions. The blood samples used for in vitro diagnosis are mainly divided into arterial blood and venous blood. Quite extensive, such as detection of biochemical indicators, hemagglutination indicators, blood rheology indicators, blood routine analysis, trace element and ion component analysis, nutritional component testing, drug concentration testing, genetic testing, infectious disease etiology testing, microbial detection and so on. Due to the differences in the detection instruments used for different detection indicators, venous blood samples are divided into three categories: plasma, serum and whole blood according to their purposes. Plas...

Claims

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Application Information

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IPC IPC(8): A61B5/154G01N1/28
Inventor 朱德新
Owner SHANGHAI KEHUADIAGNOSITIC MEDICAL PRODS
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