Systems, devices and methods for controlled vessel lesion dissection
AssigneeSurModics, Inc.
InventorsDavid Meerkin, Raphael BENARY, Yoav SHAKED
Life of this patent
Estimating the term…
Abstract
Systems, devices and methods for treating a stenosed vessel or heart valve are disclosed. In some embodiments, a cutting/scoring assembly/device for treating a stenosed vessel/heart valve is provided and includes a main, elongated scoring sleeve or element with multiple longitude wires arranged at a distal end. A distal end of the elongated element is proximal to the multiple longitude wires which, when used in conjunction with a balloon catheter, is used to for, according to some embodiments, localized controlled longitudinal vessel incision.
Claims30
1-20. (canceled)
A scoring catheter system comprising:
- a balloon catheter having a catheter shaft extending between proximal and distal portions, the balloon catheter includes a balloon proximate to the distal portion;
- and
- a scoring sleeve coupled with the balloon proximate to the distal portion, the scoring sleeve includes:
- a distal tip configured for coupling with the distal portion of the balloon catheter;
- a deformable cuff configured for grasping the catheter shaft;
- and
- one or more scoring elements extending between the deformable cuff and the distal tip, the one or more scoring elements extend along an exterior of the balloon, and the one or more scoring elements are configured for deflection away from the catheter shaft with inflation of the balloon.
A scoring catheter system comprising:
- a scoring sleeve configured for installation along a balloon catheter, the scoring sleeve includes:
- a distal tip configured for coupling with a distal portion of a balloon catheter;
- a deformable cuff configured for grasping the balloon catheter;
- one or more scoring elements extending between the deformable cuff and the distal tip, the one or more scoring elements are deflectable between contracted and deployed configurations;
- and
- a tether coupled with the deformable cuff;
- and
- wherein the scoring sleeve includes a decoupled configuration and an anchored configuration:
- in the decoupled configuration the deformable cuff is decoupled from the balloon catheter and the one or more scoring elements are in the contracted configuration;
- and
- in the anchored configuration the deformable cuff grasps the balloon catheter extending through the deformable cuff, the one or more scoring elements extend around the balloon of the balloon catheter, and the distal tip seats a distal portion of the balloon catheter.
A method for assembling a scoring catheter system comprising:
- receiving a balloon catheter within a scoring sleeve, the scoring sleeve configured for lesion dissection, receiving the balloon catheter includes:
- surrounding a balloon of the balloon catheter with one or more scoring elements of the scoring sleeve;
- and
- anchoring the scoring sleeve along the balloon catheter, anchoring the scoring sleeve includes:
- seating a distal portion of the balloon catheter within a distal tip of the scoring sleeve;
- and
- grasping the balloon catheter with a deformable cuff of the scoring sleeve, wherein the one or more scoring elements extend between the distal tip and the deformable cuff.
A scoring device configured to fit over a balloon catheter, the device comprising:
- a cylindrically-shaped main body having a plurality of cutting elements circumferentially spaced apart and configured to fit over a balloon of the balloon catheter and expand and retract radially with the inflation and deflation of the balloon;
- a tip portion configured to radially expand so as to accept a tip of the balloon catheter;
- and
- a proximal collar having an expandable section which is configured to radially expand and retract to fit a range of catheter shafts and corresponding diameters thereof.
Dependencies are inferred from the claim text.