Catheter system

Details Catheter system Catheter system

1988-01-25

1989-02-14

Hindenburg, Max

Surgery

Truss

Pad

604169, 604256, 604264, A61B 500

Patent

active

048039993

ABSTRACT:
Improved catheter system particularly adapted for multiple blood sample comprises a cannula defining a lumen having a side opening intermediate its ends, and an obturator slidably insertable in the lumen, the obturator being movable in the lumen between a first position wherein its proximal end extends proximally of the side opening and a second position wherein its proximal end terminates distally of the side opening. The side opening includes a tulip-shaped extension to permit the complete and efficient cleansing of the opening between multiple samplings of blood. Means for adapting the catheter system for continuous intravenous therapy are also disclosed.

REFERENCES:
patent: 1103967 (1914-07-01), Hughes
patent: 2893395 (1959-07-01), Buck
patent: 3572333 (1971-03-01), Hubert
patent: 3707972 (1973-01-01), Villari et al.
patent: 3799172 (1974-03-01), Szpur
patent: 3811440 (1974-05-01), Moorehead et al.
patent: 3977400 (1976-08-01), Moorehead
patent: 4149535 (1979-04-01), Volder

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