Sutureless valve prosthesis delivery device and methods of use thereof
First Claim
Patent Images
1. A delivery device for delivering a heart valve prosthesis, the delivery device comprising:
- a first sheath configured to encase at least a portion of an expandable support frame of the heart valve prosthesis;
a second sheath configured to encase a valve clasper of the heart valve prosthesis, the valve clasper being coupled to the expandable support frame; and
a control unit operably coupled to the first and second sheaths,wherein along a longitudinal axis, the first sheath is distal to the second sheath, and the second sheath is distal to the control unit, andwherein the second sheath comprises a bent configuration in which (i) the second sheath has an angle of between about 5 degrees to 60 degrees and (ii) the second sheath maintains the bent configuration, at the same angle ±
5 degrees in the absence of a force applied thereto, during delivery of the heart valve prosthesis and removal of the delivery device.
3 Assignments
0 Petitions
Accused Products
Abstract
Devices and methods for delivering a sutureless valve (5) to repair a defective native valve are described herein. The devices and methods are particularly useful in minimally invasive procedures.
-
Citations
26 Claims
-
1. A delivery device for delivering a heart valve prosthesis, the delivery device comprising:
-
a first sheath configured to encase at least a portion of an expandable support frame of the heart valve prosthesis; a second sheath configured to encase a valve clasper of the heart valve prosthesis, the valve clasper being coupled to the expandable support frame; and a control unit operably coupled to the first and second sheaths, wherein along a longitudinal axis, the first sheath is distal to the second sheath, and the second sheath is distal to the control unit, and wherein the second sheath comprises a bent configuration in which (i) the second sheath has an angle of between about 5 degrees to 60 degrees and (ii) the second sheath maintains the bent configuration, at the same angle ±
5 degrees in the absence of a force applied thereto, during delivery of the heart valve prosthesis and removal of the delivery device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for delivering a prosthetic heart valve to an implantation site of a patient, the method comprising:
-
introducing a valve delivery device into the implantation site, wherein the valve delivery device comprises; a first sheath encasing at least a portion of an expandable support frame of the prosthetic heart valve; a second sheath encasing a valve clasper of the prosthetic heart valve, the valve clasper being coupled to the expandable support frame and comprising three u-shaped members and three leg members; a control unit operably coupled to the first and second sheaths; and three track wires providing an operable connection between the three leg members and the control unit, each of the three track wires being reversibly attached to each of the three leg members; wherein along a longitudinal axis, the first sheath is distal to the second sheath, and the second sheath is distal to the control unit, and wherein the second sheath comprises a bent configuration in which the second sheath has an angle of between about 5 degrees to 60 degrees; advancing a distal end of the valve delivery device to a defective cardiac valve until the three u-shaped members are located adjacent to an annulus of the defective cardiac valve; proximally retracting the second sheath relative to the valve clasper to uncover the three u-shaped members; moving the delivery device relative to the annulus to seat the three u-shaped members against the annulus; moving the first sheath relative to the support frame to uncover the expandable support frame; detaching each of the three track wires from the three leg members; removing the valve delivery device from the patient; and maintaining the bent configuration of the second sheath, at the same angle ±
5 degrees in the absence of a force applied to the second sheath, during delivery of the prosthetic heart valve and removal of the valve delivery device. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A delivery device for delivering a heart valve prosthesis, the delivery device comprising:
-
a first sheath configured to encase at least a valve clasper; a second sheath configured to encase at least a portion of an expandable support frame, the valve clasper being coupled to the expandable support frame; and a control unit operably coupled to the first and second sheaths, wherein along a longitudinal axis, the first sheath is distal to the second sheath, and the second sheath is distal to the control unit, and wherein the second sheath comprises a bent configuration in which (i) the second sheath has an angle of between about 5 degrees to 60 degrees and (ii) the second sheath maintains the bent configuration, at the same angle ±
5 degrees in the absence of a force applied thereto, during delivery of the heart valve prosthesis and removal of the delivery device. - View Dependent Claims (17, 18, 19, 20, 21)
-
-
22. A method for deploying a prosthetic valve to an implantation site of a patient, the method comprising:
-
introducing a valve delivery device into a vessel of a patient, wherein the valve delivery device comprises; a first sheath encasing at least a portion of a valve clasper; a second sheath encasing at least a portion of an expandable support frame, the valve clasper being coupled to the expandable support frame; and a control unit operably coupled to the first and second sheaths, wherein along a longitudinal axis, the first sheath is distal to the second sheath, and the second sheath is distal to the control unit, and wherein the second sheath comprises a bent configuration in which the second sheath has an angle of about 5 degrees to 60 degrees; advancing the valve delivery device through the vessel toward a defective native valve until the first sheath is adjacent to an annulus of the defective native valve; moving the first sheath relative to the valve clasper along the longitudinal axis to permit the valve clasper to expand radially; moving the second sheath relative to the valve clasper along the longitudinal axis until the expandable support frame is aligned with the valve clasper; moving the delivery device in a distal direction until the valve clasper is in contact with a sinus of the defective native valve; proximally retracting the second sheath relative to the expandable support frame and valve clasper along the longitudinal axis until the expandable support frame expands; and maintaining the bent configuration of the second sheath, at the same angle ±
5 degrees in the absence of a force applied to the second sheath, during delivery of the prosthetic valve and removal of the valve delivery device. - View Dependent Claims (23, 24, 25, 26)
-
Specification