MEDICAL CUTTING DEVICES AND METHODS OF USE
First Claim
Patent Images
1. A percutaneously-deployable cutting device comprising:
- a delivery catheter having a lumen extending therethrough;
an elongate shaft disposed within the lumen of the delivery catheter;
a cutting unit disposed about a distal end of the elongate shaft, the cutting unit including a first mounting ring, a second mounting ring, and a plurality of cutting wires extending from the first mounting ring to the second mounting ring;
wherein each of the plurality of cutting wires includes a cutting blade disposed on at least a portion thereof; and
a plurality of longitudinally-oriented centralizing wires disposed proximal of the plurality of cutting wires, the plurality of centralizing wires configured to center the cutting unit within a treatment site.
1 Assignment
0 Petitions
Accused Products
Abstract
A cutting device for repairing a heart valve may include a delivery catheter, a cutting unit including an elongate shaft and a plurality of cutting wires, and a plurality of centralizing wires configured to center the cutting unit within a treatment site. A method of repairing a heart valve may include withdrawing a cutting unit through a treatment site while maintaining a plurality centralizing wires in an expanded centering configuration.
-
Citations
20 Claims
-
1. A percutaneously-deployable cutting device comprising:
-
a delivery catheter having a lumen extending therethrough; an elongate shaft disposed within the lumen of the delivery catheter; a cutting unit disposed about a distal end of the elongate shaft, the cutting unit including a first mounting ring, a second mounting ring, and a plurality of cutting wires extending from the first mounting ring to the second mounting ring; wherein each of the plurality of cutting wires includes a cutting blade disposed on at least a portion thereof; and a plurality of longitudinally-oriented centralizing wires disposed proximal of the plurality of cutting wires, the plurality of centralizing wires configured to center the cutting unit within a treatment site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method of repairing a heart valve, comprising:
-
obtaining a cutting device comprising; a delivery catheter having a lumen extending therethrough; an elongate shaft disposed within the lumen of the delivery catheter; a cutting unit disposed about a distal end of the elongate shaft, the cutting unit including a first mounting ring, a second mounting ring, and a plurality of cutting wires extending from the first mounting ring to the second mounting ring; wherein each of the plurality of cutting wires includes a cutting blade disposed on at least a portion thereof; and a plurality of longitudinally-oriented centralizing wires disposed proximal of the plurality of cutting wires, the plurality of centralizing wires configured to center the cutting unit within a treatment site; advancing the cutting device percutaneously to a treatment site; extending the cutting unit distally from the delivery catheter through the treatment site in a collapsed delivery configuration; actuating the plurality of cutting wires into an expanded cutting configuration; actuating the plurality of centralizing wires into an expanded centering configuration; and withdrawing the cutting unit through the treatment site in the expanded cutting configuration while maintaining the plurality of centralizing wires in the expanded centering configuration. - View Dependent Claims (18, 19, 20)
-
Specification