Cannula for a vein distention system

Details Cannula for a vein distention system Cannula for a vein distention system

1980-05-08

1982-04-06

Bratlie, Steven A.

Surgery

Truss

Pad

128 1R, 128221, 128239, 128747, A61M 2500, A61B 1900

Patent

active

043230725

ABSTRACT:
A cannula used in the distention and irrigation of a saphenous vein which is being tested prior to use as a coronary or peripheral bypass graft includes a tapered and beveled tip which allows easy insertion into the vein, and a sloping shoulder just proximal to the tip which provides a convenient site for firmly securing the vein to the cannula with a ligature. The cannula can be utilized in a distention and irrigation apparatus which includes a pressure limiting device having a resilient membrane reservoir which limits static pressure delivered to the vein to a predetermined level. The device is connected between the cannula of the present invention and a syringe filled with irrigation fluid.

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