Device for the extraction of blood

Details Device for the extraction of blood Device for the extraction of blood

A - Human Necessities

61

B

128/83

A61B 5/155 (2006.01) A61M 5/00 (2006.01) F04B 9/12 (2006.01) F04B 9/14 (2006.01) F04B 27/00 (2006.01) F04B 33/00 (2006.01)

Patent

CA 1132872

ABSTRACT OF THE DISCLOSURE A device for the extraction of blood, comprising a cylindrical receiving container, a piston air-tightly guided and shiftable therein and a connecting socket for a cannula at one end of the container, wherein the cylindrical container has an opening in the wall at the end remote from the connecting socket for drawing the air out of this portion of the container, and a suction de- vice for a slow and uniform drawing-off of air connected by a connecting hose with the said opening in the wall of the con- tainer. The piston is moved away from the connecting socket and in the direction of the opening when and as long as the suction device is drawing-off the air from the container.

297089

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