Patent ID: 9227078
Filing Date: 2016-01-05
CPC Classification: A61B,A61N

Claim Text:
1. A medical device to narrow an opening portion of a heart valve body, comprising; a guide catheter possessing a leading end and having an opening in a vicinity of the leading end of the guide catheter; a procedure catheter configured to be positioned in the guide catheter; and an anchor member which projects from the opening at the leading end of the guide catheter and which comprises an inosculating means for narrowing the opening portion of the heart valve body, the inosculating means being configured to draw together opposing portions on each lateral side of the opening portion of the heart valve body so as to thereby narrow the opening portion of the heart valve body; wherein the anchor member comprises fastening means for making the anchor member smaller after the anchor member punctures the heart valve body; and wherein the fastening means includes a cylindrical body at a leading end portion of the procedure catheter, the cylindrical body possessing a tip end forming an open end at which is located a turned-in portion of the cylindrical body that is turned inwardly to narrow the open end of the cylindrical body, the anchor member including an arcuate protruding head portion to which is fixed a string member, the turned-in portion of the cylindrical body being sized relative to the arcuate protruding head portion of the anchor member so that an inner circumference of the turned-in portion of the cylindrical body grasps the arcuate protruding head portion of the anchor member to prevent the arcuate protruding head portion from moving forward beyond the turned-in portion of the cylindrical body.