High-speed transmission of blood stream gases

Details High-speed transmission of blood stream gases High-speed transmission of blood stream gases

1978-04-03

1980-02-12

Kamm, William E.

Surgery

Truss

Pad

23232R, 73 407, A61B 500

Patent

active

041878566

ABSTRACT:
The various gases in the blood stream are analyzed by a mass spectrometer coupled to the catheter having on its distal end a membrane that passes the gases but not the blood. A "carrier" gas, such as helium, introduced under a small pressure through a small tube within the catheter lumen and into the area behind the membrane will produce a viscous flow that greatly speeds the gases to the mass spectrometer. The carrier gas is extracted prior to its arrival at the mass spectrometer.

REFERENCES:
patent: 3572315 (1971-03-01), Cullen
patent: 3645127 (1972-02-01), Mongodin et al.
patent: 3926561 (1975-12-01), Lucero
patent: 4004882 (1977-01-01), Byrne et al.

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