Cannula for a vein distention system

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

A - Human Necessities

61

M

128/127, 128/132

A61M 25/00 (2006.01)

Patent

CA 1157726

P.C. 6307A Canada CANNULA FOR A VEIN DISTENTION SYSTEM 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 irri- gation 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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