G - Physics – 01 – N
Patent
G - Physics
01
N
73/103
G01N 1/14 (2006.01) G01N 35/00 (2006.01) G01N 35/10 (2006.01)
Patent
CA 1140776
Abstract of the Disclosure Method of and apparatus for obtaining a sample from a specimen of blood or the like in a closed container at a first pressure and for delivering the sample to an analyzer for analysis. The appa- ratus comprises a hollow needle for penetrating the closed container movable from a retracted position to an extended position in which it penetrates the container for drawing a specimen sample therefrom, and back to its retracted position. A conduit con- nects the needle and the analyzer for delivery of a specimen sample to the latter. An aspirator reduces the pressure in this conduit to a pressure less than the aforesaid first pressure when the needle is in its extended position, a specimen sample thereby being aspirated from the container into the conduit for delivery to the analyzer. The apparatus is responsive to this aspiration to ini- tiate transfer of the specimen sample from the con- duit into the analyzer. The pressure in the conduit is at least equal to the first pressure following aspiration, thereby enabling the specimen sample readily to be drawn into the analyzer.
374356
Cortex Research Corporation
Smart & Biggar
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