Balloon catheter for creating a longitudinal channel in a lesion and method
First Claim
1. A balloon catheter for performing an angioplasty procedure on a lesion in a vessel [,] comprising a flexible elongate catheter shaft having proximal and distal extremities, a balloon secured to the distal extremity of the catheter shaft and having proximal and distal extremities and having an interior and movable between deflated and inflated conditions, the catheter shaft having a balloon inflation lumen extending from the proximal extremity to the distal extremity of the catheter shaft and opening into the interior of the balloon, a fitting for supplying an inflation medium to the inflation lumen for causing movement of the balloon from the deflated condition to the inflated condition, said balloon having an outer surface extending from the proximal extremity to the distal extremity of the balloon which moves outwardly radially upon inflation of the balloon and at least one flexible elongate element extending over the outer surface of the balloon from the proximal extremity to the distal extremity of the balloon, said flexible elongate element being secured about the catheter shaft in positions spaced longitudinally away from the outer surface of the balloon to permit expansion of the balloon and to cause movement of the flexible elongate element into engagement with the lesion to form a longitudinal channel in the lesion.
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Accused Products
Abstract
A balloon catheter for performing an angioplasty procedure on a lesion in a vessel comprising a flexible elongate catheter shaft having proximal and distal extremities. A balloon is secured to the distal extremity of the catheter shaft and has an outer surface extending between proximal and distal extremities of the balloon. A flexible elongate element is provided which extends over the outer surface of the balloon. The flexible elongate element has proximal and distal extremities which are secured about the catheter shaft in positions spaced longitudinally away from the outer surface of the balloon to permit expansion of the balloon and to cause movement of the flexible elongate element into engagement with the lesion to form a longitudinal channel in the lesion.
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Citations
19 Claims
- 1. A balloon catheter for performing an angioplasty procedure on a lesion in a vessel [,] comprising a flexible elongate catheter shaft having proximal and distal extremities, a balloon secured to the distal extremity of the catheter shaft and having proximal and distal extremities and having an interior and movable between deflated and inflated conditions, the catheter shaft having a balloon inflation lumen extending from the proximal extremity to the distal extremity of the catheter shaft and opening into the interior of the balloon, a fitting for supplying an inflation medium to the inflation lumen for causing movement of the balloon from the deflated condition to the inflated condition, said balloon having an outer surface extending from the proximal extremity to the distal extremity of the balloon which moves outwardly radially upon inflation of the balloon and at least one flexible elongate element extending over the outer surface of the balloon from the proximal extremity to the distal extremity of the balloon, said flexible elongate element being secured about the catheter shaft in positions spaced longitudinally away from the outer surface of the balloon to permit expansion of the balloon and to cause movement of the flexible elongate element into engagement with the lesion to form a longitudinal channel in the lesion.
- 16. A method for manufacturing a balloon catheter for performing an angioplasty procedure on a lesion in a vessel, fabricating a balloon catheter with a flexible elongate catheter shaft with proximal and distal extremities and having a balloon disposed on the distal extremity, providing at least one flexible elongate element extending longitudinally of the balloon and having proximal and distal extremities and securing the proximal and distal extremities of the flexible elongate element about the catheter shaft so that they are disposed away from opposite ends of the balloon.
Specification