Gas sampling catheter assembly and method

Details Gas sampling catheter assembly and method Gas sampling catheter assembly and method

1975-03-03

1976-09-21

Howell, Kyle L.

Surgery

Truss

Perineal

128 2E, 128 2L, 128214R, 128348, A61B 500

Patent

active

039812979

ABSTRACT:
A catheter assembly for sampling gases in biological tissue in vivo, including a catheter constructed of a hollow tube sheathed in a gas-permeable membrane, and an impermeable barrier between the tube and membrane to define the boundary of a sampling tip. A catheter hub slideably surmounts the catheter and detachably receives a calibration chamber normally surrounding the sampling tip. The method includes purging the calibration chamber with a calibration gas and thereafter removing the calibration chamber and inserting the catheter into the tissue to be sampled.

REFERENCES:
patent: 3224433 (1965-12-01), Von Dalebor
patent: 3572315 (1971-03-01), Cullen
patent: 3658053 (1972-04-01), Fergusson et al.
patent: 3824157 (1974-07-01), Macur
patent: 3878830 (1975-04-01), Bicher
patent: 3893448 (1975-07-01), Brantigan

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