Claims
- 1. A cannula for use in a biventricular cardiac support system or a cardiopulmonary bypass system comprising an elongated tube having a side wall and a proximate end and a distal end, a transverse, axially extending wall having a distal end, mounted within said tube for dividing the tube into a pair of side-by-side lumens, tile distal end of the transverse wall merging with the side wall of the tube substantially intermediate the ends thereof, to thereby terminate and close the distal end of one of said pair of lumens, a plurality of aspiration orifices in the side wall of tube communicating with said one of said pair of lumen, the other lumen of said pair of lumens extending the full length of said tube, a large end orifice at the distal end of said other lumen, a plurality of smaller orifices in the side wall of the tube communicating with said other lumen adjacent the distal end thereof, an inflatable balloon connected to the distal end of said other lumen, said balloon being positioned below and adjacent to said plurality of smaller orifices, and an axially extending inflation bore provided in the side wall of the tube communicating with the interior of the balloon.
- 2. A cannula according to claim 1, wherein a second axially extending bore is provided in the side wall of the tube for conveying an oxygenated cardioplegic solution to the exterior of the tube at a location below and exteriorly of the balloon.
Parent Case Info
This application is a division of application number 08/641,756 filed May 2, 1996, now U.S. Pat No. 5,688,245.
US Referenced Citations (11)
Divisions (1)
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Number |
Date |
Country |
Parent |
641756 |
May 1996 |
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