Retrograde venous cardioplegia catheters and methods of use and

Details Retrograde venous cardioplegia catheters and methods of use and Retrograde venous cardioplegia catheters and methods of use and

1988-04-28

1991-06-04

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604 96, 604102, A61M 2902

Patent

active

050210459

ABSTRACT:
This invention relates to a retrograde cardioplegia catheter and its method of use. The catheter contains two lumens, an infusion lumen through which the cardioplegic solution flows and a pressure sensing lumen for monitoring the fluid pressure at the point where the solution exits the catheter. A slightly tapered, self-filling balloon is secured to the distal end of the catheter. Also, located at the distal end of the catheter is a soft, rounded tip to prevent damage to the sensitive intimal tissues of the coronary sinus. A stylet having a predetermined curve at the distal end and a handle at the proximal end is removably located within the infusion lumen. The predetermined curve at one end of the stylet enables the cardioplegia catheter to be inserted quickly and accurately within the coronary sinus through a very small incision made in the right atrium. After the catheter is securerd in place, the stylet is withdrawn. The catheter remains in position for the duration of the operation in order to periodically readminister the cardioplegia solution.

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