Valve suturing and implantation procedures
First Claim
1. Apparatus comprising a delivery catheter for implanting a valve prosthesis, the catheter comprising:
- proximal and distal delivery tubes, configured to hold respective proximal and distal portions of the valve prosthesis; and
a radially compressible tapered element having proximal and distal ends, the tapered element being slidingly coupled to the distal delivery tube and having an outer diameter touching an inner diameter of the distal delivery tube,wherein the distal delivery tube and the tapered element are configured such that advancement of the distal delivery tube in a distal direction releases the tapered element from a compressed state to an uncompressed state, releases the distal portion of the valve prosthesis from the distal delivery tube and positions the tapered element in a vicinity of a proximal end of the distal delivery tube.
0 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis for implantation at a native semilunar valve includes a prosthetic distal valve, which includes a pliant material configured to collapse inwardly towards a longitudinal axis of the prosthesis during diastole, and to open outwardly during systole, and a distal fixation member configured to be positioned in a downstream artery of the subject. The apparatus also includes a proximal fixation member coupled to the distal fixation member, and configured to be positioned at least partially on a ventricular side of the native semilunar valve. The proximal fixation member is shaped so as to define a lattice that is shaped so as to define an intermediary portion that is coupled to the pliant material of the valve and diverges outwardly from the longitudinal axis, and a distal portion that is distal to the intermediary portion and diverges outwardly from the intermediary portion of the lattice. Other embodiments are also described.
-
Citations
13 Claims
-
1. Apparatus comprising a delivery catheter for implanting a valve prosthesis, the catheter comprising:
-
proximal and distal delivery tubes, configured to hold respective proximal and distal portions of the valve prosthesis; and a radially compressible tapered element having proximal and distal ends, the tapered element being slidingly coupled to the distal delivery tube and having an outer diameter touching an inner diameter of the distal delivery tube, wherein the distal delivery tube and the tapered element are configured such that advancement of the distal delivery tube in a distal direction releases the tapered element from a compressed state to an uncompressed state, releases the distal portion of the valve prosthesis from the distal delivery tube and positions the tapered element in a vicinity of a proximal end of the distal delivery tube. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A valve prosthesis deployment delivery system, comprising:
-
a proximal delivery tube configured to enclose a proximal portion of a valve prosthesis; a distal delivery tube configured to enclose a distal portion of a valve prosthesis; and a radially compressible element configured to move within the distal delivery tube during deployment of a valve prosthesis, wherein; an outer diameter of the element touches an inner diameter of the distal delivery tube, the element is positioned at a distal end of the distal delivery tube prior to deployment of a valve prosthesis such that advancement of the distal delivery tube in a distal direction releases the tapered element from a compressed state to an uncompressed state, and the element is positioned at a proximal end of the distal delivery tube after deployment of a valve prosthesis. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification