2results about How to "Avoid hemolysis" patented technology

The utility model provides a kind of blood specimen transmission cylinder, including main body cylinder, first buffer sleeve and cylinder cover;Wherein main body cylinder has accommodating cavity;First buffer sleeve is installed in accommodating cavity, blood collection tube can be inserted into first buffer sleeve;Cylinder cover can be connected with main body cylinder cover, after cover connection, the inner top wall of cylinder cover and the tube cap of blood collection tube abut.In transmission blood specimen, blood collection tube with blood specimen is placed in first buffer sleeve, then cylinder cover is connected with main body cylinder cover and fixed blood collection tube.The blood specimen transmission cylinder of the utility model can effectively avoid specimen spilling and hemolysis problem in transmission process, specifically, blood collection tube is placed in first buffer sleeve, the impact of transport vibration on blood collection tube is reduced using the buffer effect of sleeve, and the stability of tube body is enhanced, so as to prevent hemolysis;In addition, cylinder cover and main body cylinder are reliably fixed by clamping structure, and the pre-tightening pressure exerted on blood collection tube cap by cylinder cover inner wall can prevent tube cap from loosening and avoid spilling.

The application relates to a microfluidic device, a support and a plasma separation method for whole blood filtration, comprising a body, a filtration mechanism arranged in the body and a collection tank in communication with the filtration mechanism, the filtration mechanism is used for filtering red blood cells, and the collection tank is used for collecting plasma; the application further comprises a driving mechanism used for driving a sample in the body to move from a side where the filtration mechanism is located to a side where the collection tank is located. The driving mechanism can improve the flow speed of the sample, thereby improving the whole blood filtration speed, shortening the whole blood separation time and reducing the possibility of hemolysis. The microfluidic device provided by the embodiment can obtain plasma without a centrifuge, has a small device volume and is easy to operate.