SCORING CATHETER AND METHOD FOR TREATING DISEASED HEART VALVES
First Claim
Patent Images
1. A scoring catheter comprising:
- an elongated catheter body comprising a distal end and a proximal end; and
at least one scoring element positioned at said distal end of the catheter body, wherein said scoring element is expandable from a contracted state when positioned near said catheter body to an expanded state with a larger diameter so that diseased heart valves can be scored and re-opened.
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Abstract
The present invention provides a valvuloplasty catheter which has a scoring element at its distal part to score stenotic, calcified heart valves in radial direction and to make the single valve flaps/leaflets work again. In addition to this, the device could comprise an attached balloon to post-dilate the valve after the scoring procedure. To reduce a future recalcification, the scoring element and/or the balloon have a pharmacologic coating on their outer surface.
54 Citations
60 Claims
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1. A scoring catheter comprising:
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an elongated catheter body comprising a distal end and a proximal end; and at least one scoring element positioned at said distal end of the catheter body, wherein said scoring element is expandable from a contracted state when positioned near said catheter body to an expanded state with a larger diameter so that diseased heart valves can be scored and re-opened. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method for treating diseased heart valves, the method comprising:
providing a scoring catheter comprising an elongated catheter body with a distal end and a proximal end and at least one scoring element positioned at said distal end of the catheter body, wherein said scoring element is expandable from a contracted state when positioned near said catheter body to an expanded state with a larger diameter;
placing said scoring element in its contracted state at the level of a heart valve to be treated;
expanding said scoring element to an expanded state with a larger diameter than in its contracted state; and
retracting said scoring element through an opening of said heart valve thereby scoring and re-opening said heart valve.- View Dependent Claims (55, 56, 57, 58, 59, 60)
Specification