Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1980-04-09
1982-01-19
Serwin, Ronald
Measuring and testing
Sampler, sample handling, etc.
Capture device
23230R, 23230B, 7386424, 422 63, 422 65, 422100, 422103, G01N 114, G01N 3348, G01N 3506
Patent
active
043114849
ABSTRACT:
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 apparatus 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 connects 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 initiate transfer of the specimen sample from the conduit 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.
REFERENCES:
patent: 3607097 (1971-09-01), Auphan et al.
patent: 3676679 (1972-07-01), Waters
patent: 3935073 (1976-01-01), Waters
patent: 4120662 (1978-10-01), Fosslien
Bactec Flyer.
Cortex Research Corporation
Serwin Ronald
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