Patent ID: 7955299

Claim:
A basket catheter for conveying an anticoagulant or other fluid for irrigation, comprising: an outer tubing housing an inner fluid delivery tubing having at least one fluid delivery port; a plurality of splines each connected at a proximal end of the splines to the outer tubing and at a distal end of the splines to the inner fluid delivery tubing, the inner fluid delivery tubing operable to be moved in a first direction relative to the outer tubing to expand the splines to a deployed position, and the inner fluid delivery tubing operable to be moved in a second direction relative to the outer tubing to collapse the splines to an undeployed position; a membrane provided over at least a portion of the inner fluid delivery tubing having the at least one fluid delivery port; and a seal provided at a proximal end of the membrane between the outer tubing and the inner fluid delivery tubing, the seal configured for irrigating between the plurality of splines of the basket catheter while preventing fluid ingress back into the outer tubing of the basket catheter.