Multi-lumen cannula

Details Multi-lumen cannula Multi-lumen cannula

1997-08-14

1999-01-12

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604282, 604 49, A61M 500

Patent

active

058580093

ABSTRACT:
The multi-lumen cannula according to the invention is preferably formed from two separate sub-cannulas, a portion of which are adhered to one another. Preferably, the adhered portions of the sub-cannulas are deformed such that the assembled multi-lumen cannula is substantially circular in cross section throughout the adhered portions of the sub-cannulas. In addition, the septum separating the multiple lumens of the cannula is preferably reinforced so that the multi-lumen cannula can accommodate dramatically different fluid pressure within the cannula without deformation of the septum. This cannula is ideally suited for use in a variety of left-heart and right-heart assist cardiac surgical procedures, especially minimally invasive procedures.

REFERENCES:
patent: 3734083 (1973-05-01), Kolin
patent: 4451252 (1984-05-01), Martin
patent: 4543087 (1985-09-01), Sommercorn et al.
patent: 4675004 (1987-06-01), Hadford et al.
patent: 5160325 (1992-11-01), Nichols et al.
patent: 5348536 (1994-09-01), Young et al.
patent: 5374245 (1994-12-01), Mahurkar
patent: 5451206 (1995-09-01), Young
patent: 5554136 (1996-09-01), Luther
patent: 5569182 (1996-10-01), Twardowski et al.

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