Patent ID: 9554816
Date: 2017-01-31
CPC Classifications: A61B

Claim:
1. A device for fracturing calcifications in heart valves comprising: an expandable stabilizer and expandable impactor arms assembled on and deployed by a delivery system, wherein said delivery system is operable to move said impactor arms, while in an expanded position, with respect to said stabilizer with sufficient energy so as to fracture a calcification located in tissue which is sandwiched between said stabilizer and said impactor arms, wherein said delivery system comprises a catheter, in which are disposed said expandable stabilizer, an internal shaft and an impactor shaft on which are mounted said impactor arms, and wherein said internal shaft is movable to cause said impactor arms to expand outwards and be locked in an expanded shape, distal portions of said impactor arms being distanced from said impactor shaft, and wherein an impacting element is movable to cause said impactor arms, while in the expanded shape, to move linearly with respect to said stabilizer with sufficient energy so as to fracture a calcification located in tissue which is sandwiched between said stabilizer and said impactor arms.