Blood collection device with reduced serum dispensing volume...

Details Blood collection device with reduced serum dispensing volume... Blood collection device with reduced serum dispensing volume...

A - Human Necessities

61

M

A61M 1/36 (2006.01) A61B 5/15 (2006.01) B01L 3/00 (2006.01) G01N 33/49 (2006.01)

Patent

CA 2041551

BLOOD COLLECTION DEVICE WITH REDUCED SERUM DISPENSING VOLUME AND INTEGRAL NEEDLE ABSTRACT An integrated blood collection, separation and dispensing device is disclosed that allows a method of blood collection, serum separation and serum dispensing to occur using a single device (other than a centrifuge). The device preferably includes a transfer chamber for receiving separated serum, that has a three-dimensional shape that is reduced in volume and is configured to avoid air entrapment. A dispensing aperture in the transfer chamber fluidly connects the chamber with the atmosphere. Preferably, means are provided adjacent the dispensing aperture for generating a liquid pressure change indication of the presence of liquid advancing towards the dispensing aperture. A needle and a protective housing optionally are provided as an integral part of the device.

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