Valved perfusion cardiovascular catheters

Details Valved perfusion cardiovascular catheters Valved perfusion cardiovascular catheters

1990-10-04

1992-11-17

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604281, A61M 500

Patent

active

051639211

ABSTRACT:
A guide catheter for use in coronary angioplasty, atherectomy and other cardiovascular interventions is provided with a side port having a one-way valve arrangement which permits the flow of aortic blood into the catheter lumen and out of the distal orifice of the catheter yet which closes in response to pressure injection of a liquid through the lumen of the catheter, such as injection of radiopaque contrast liquid. The valve element may be in the form of a thin flexible film constructed to be substantially immediately responsive to light pressure differentials across the valve element.

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