Delivery catheter with distal moving capsule for transapical prosthetic heart valve delivery
First Claim
1. A prosthesis delivery system comprising:
- a handle assembly including a rotatable control knob;
an intermediate shaft extending from the handle assembly and having an interior lumen, the intermediate shaft having a prosthesis retaining element connected to a distal end thereof;
an introducer shaft having an interior lumen and a tapered introducer tip attached at a distal end thereof, wherein a proximal end of the introducer shaft is connected to a hub secured to the intermediate shaft and configured to slide in a proximal and distal direction along the intermediate shaft;
an inner shaft extending from the handle assembly and configured to be moved in a proximal direction by rotating the control knob in a first direction and to be advanced in a distal direction by rotating the control knob in a second direction that is opposite of the first direction; and
a capsule including a proximal end, a distal end and a capsule tip, wherein the distal end of the capsule is connected to a distal end of the inner shaft, the proximal end of the capsule is configured to have an interference fit with the prosthesis retaining element of the intermediate shaft in a deployment stage and to receive the tapered introducer tip in each of a delivery stage and a retraction stage, and the capsule is configured to contain a prosthesis device, andwherein when the control knob is rotated in the second direction the inner shaft and the capsule advance together in the distal direction relative to the prosthesis device until the proximal end of the capsule contacts the prosthesis retaining element and thereafter further distal advancement is prevented.
2 Assignments
0 Petitions
Accused Products
Abstract
Heart valve delivery systems and methods of delivering and implanting heart valves using delivery catheters are disclosed. The delivery systems can include a handle assembly with a rotatable control knob and a catheter including an introducer shaft, an intermediate shaft extending from the handle assembly, an inner shaft extending from the handle assembly, and a capsule for containing a prosthesis. The distal end of the capsule can be connected to a distal end of the inner shaft, which can be moved in a distal direction by the rotatable control knob to deploy the prosthesis. By advancing the introducer through the deployed prosthesis and retracting the capsule to mate with the introducer, a smooth profile can be created for retraction of the system through the deployed prosthesis, minimizing hang-ups and snagging.
13 Citations
20 Claims
-
1. A prosthesis delivery system comprising:
-
a handle assembly including a rotatable control knob; an intermediate shaft extending from the handle assembly and having an interior lumen, the intermediate shaft having a prosthesis retaining element connected to a distal end thereof; an introducer shaft having an interior lumen and a tapered introducer tip attached at a distal end thereof, wherein a proximal end of the introducer shaft is connected to a hub secured to the intermediate shaft and configured to slide in a proximal and distal direction along the intermediate shaft; an inner shaft extending from the handle assembly and configured to be moved in a proximal direction by rotating the control knob in a first direction and to be advanced in a distal direction by rotating the control knob in a second direction that is opposite of the first direction; and a capsule including a proximal end, a distal end and a capsule tip, wherein the distal end of the capsule is connected to a distal end of the inner shaft, the proximal end of the capsule is configured to have an interference fit with the prosthesis retaining element of the intermediate shaft in a deployment stage and to receive the tapered introducer tip in each of a delivery stage and a retraction stage, and the capsule is configured to contain a prosthesis device, and wherein when the control knob is rotated in the second direction the inner shaft and the capsule advance together in the distal direction relative to the prosthesis device until the proximal end of the capsule contacts the prosthesis retaining element and thereafter further distal advancement is prevented. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of implanting a prosthesis in a body lumen using a catheter, the catheter comprising:
-
a handle assembly including a rotatable control knob; an intermediate shaft extending from the handle assembly and having an interior lumen; an introducer shaft having an interior lumen and an introducer tip, wherein the introducer shaft is connected to a hub secured to the intermediate shaft and configured to slide in a proximal and distal direction along the intermediate shaft; an inner shaft extending from the handle assembly and configured to be moved in a proximal direction by rotating the control knob in a first direction and to be advanced in a distal direction by rotating the control knob in a second direction that is opposite of the first direction; and a capsule including a proximal end, a distal end and a capsule tip, wherein the distal end of the capsule is connected to a distal end of the inner shaft, and wherein the capsule is configured to contain a prosthesis device; the method comprising; inserting the catheter into a body lumen; advancing the catheter to a deployment location; advancing the capsule distally to deploy the prosthesis device, wherein rotating the control knob on the handle assembly in the second direction advances the inner shaft and capsule distally; advancing the introducer shaft through the deployed prosthesis device until the introducer tip engages the proximal end of the capsule; retracting the catheter proximally through the deployed prosthesis device; and removing the catheter from the body lumen. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification