DEVICE FOR PLACING AND FASTENING A REINFORCEMENT IMPLANT ON A MITRAL VALVE OF A HEART WITH SHAPE-MEMORY SUTURES USING A TRANSFEMORAL APPROACH

摘要

Device (1) for placing and fastening a reinforcement implant (3) on a mitral valve (7) of a heart, the device (1) being intended to be inserted into an articulated introducer disposed in a vena cava or a femoral artery to enter a left atrium of the heart through a septal wall. According to the invention, the device (1) comprises: - a first portion (2) comprising: - a first flexible and hollow tube (21) supporting the reinforcement implant (3) in the form of a sheath positioned around and along a distal end of the first tube (21); - a second portion (4) comprising: - a second flexible and hollow tube (41) intended to be inserted into the first tube (21); - a shape-memory suture (5) positioned inside and at a distal end of the second tube (41); - a flexible push rod (42) intended to be inserted into the second tube (41) to push the suture (5) out of the distal end of the second tube (41) such that the suture (5) returns to an initial looped shape by penetrating through the reinforcement implant (3) and the mitral valve (7) to fasten the reinforcement implant (3) thereto. Figure for the abstract: Figure 9