Light-resistant blood collection tube

Abstract

The invention relates to a light-resistant blood collection tube which comprises a test tube, a rubber plug and a light-resistant sleeve. The rubber plug is hermetically mounted on an orifice of the test tube, the light-resistant sleeve is sleeved on the outside of the test tube, an annular connecting disc and a fixing boss are arranged on the test tube, two arc-shaped beveled grooves are symmetrically formed in the bottom surface of the annular connecting disc, a fixing groove which is matched with the fixing boss is peripherally formed in the inner side of the light-resistant sleeve, two protruded limiting push blocks are arranged on the wall of an orifice of the light-resistant sleeve, and when the light-resistant sleeve rotates, the limiting push blocks on the light-resistant sleeve move along the arc-shaped beveled grooves, so that the light-resistant sleeve can be fixedly assembled with the test tube or can be separated from the test tube. The light-resistant blood collection tube has the advantages that the light-resistant blood collection tube is good in light-resistant performance, and distortion of measured data after sample serum is irradiated by light during clinical test is prevented; a liquid absorption and transmission preventive effect is realized, so that deficiency of reagents within the period of validity is prevented, and the light-resistant blood collection tube is completely applicable to existing automatic detecting instruments; the light-resistant blood collection tube is simple and reasonable in structure, and brings convenience for blood collection operation.

Description

technical field [0001] The invention relates to a disposable vacuum collection tube, in particular to a light-proof collection tube. Background technique [0002] Neonatal jaundice is one of the common diseases in the neonatal period, with a high incidence rate. Recent data show that hyperbilirubinemia accounts for about 40%-50% of the total number of neonatal hospitalizations. Neonatal jaundice can be a temporary phenomenon during the newborn's development, or it can be a symptom of certain diseases, which can cause brain damage. Therefore, early detection of neonatal jaundice and timely treatment are the key to its prevention and treatment. Determination of bilirubin is a reliable indicator for judging the degree of jaundice. The vast majority of dibilirubin is unconjugated bilirubin. When the specimen is exposed to light, a considerable part of unconjugated bilirubin in bilirubin will form configuration isomers, and then further form structural isomers. Since the struc...

AI Technical Summary

Problems solved by technology

Although it is made of a material with a good barrier to gas, its absorption and permeability to liquids are very high, which also causes the lack of reagents within the validity period and affects the test results.

And the existing microtube can't be put into the automatic detection equipment and use because structure, size are unreasonable, if use the 1.8ml or the 2.7ml standard vacuum blood collection tube that is matched with corresponding instrument, the top of blood collection tube has a large amount of not added by blood The full space is called "dead space". A large number of studies have shown that vacuum blood collection tubes with "dead space" will cause serious errors in the determination of bilirubin

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