Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves

Inventors

Chambers, Jeffrey W. • Brucker, Gregory G. • Higgins, Joseph P. • Kumar, Saravana B. • Diedering, Jason S. • Kabarowski, Karl A. • Thatcher, Robert J. • Flaherty, James E. • Stone, Jeffrey R.

Assignees

4C Medical Technologies Inc

Abstract

Embodiments of delivery systems, devices and methods for delivering a prosthetic heart valve device to a heart chamber for expanded implementation are disclosed. More specifically, methods, systems and devices are disclosed for delivering a self-expanding prosthetic mitral valve device to the left atrium, with no engagement of the left ventricle, the native mitral valve leaflets or the annular tissue downstream of the upper annular surface during delivery, and in some embodiments with no engagement of the ventricle, mitral valve leaflets and/or annular tissue located downstream of the upper annular surface by the delivered, positioned and expanded prosthetic mitral valve device.

Core Innovation

The invention relates to delivery systems and methods for implanting a self-expanding prosthetic valve device for expanded implantation in a heart chamber. A lasso structure is disposed through a frame of the prosthetic valve device and is operatively connected to a manipulation wire extending proximally from the lasso structure. The lasso structure comprises a closed wire loop.

During deployment in the heart chamber, the lasso structure is used to steer the prosthetic valve device out of a catheter. The lasso structure is expanded to a diameter that is larger than an inner diameter of the catheter, enabling steering while the device is deployed from the catheter.

The disclosure further includes connecting the lasso structure to the prosthetic valve device and using connector elements, manipulation of the manipulation wire, and configurations in which the lasso and catheter geometry define a closed wire loop relationship. It also encompasses disconnecting and retracting the lasso structure through the catheter in configurations where a connector element remains attached to the frame, and includes collapsing of the frame after expanding.

Claims Coverage

The independent claim identified is clm-00001. Its core coverage includes the lasso structure forming a closed wire loop, operable connection to a manipulation wire, steering during catheter deployment, and expanding the lasso loop to a diameter larger than the catheter inner diameter, with additional connector and retraction refinements provided by dependents.

Overall, the claim coverage centers on a self-expanding prosthetic valve delivery method that uses a lasso structure forming a closed wire loop, connected to a proximal manipulation wire, to steer the prosthetic valve out of a catheter while expanding the lasso to a diameter larger than the catheter inner diameter. Dependent claim refinements further specify connector-element connections, disconnection with connector retention on the device frame, and loop-closure relationships defined by the catheter distal end.

Stated Advantages

Documented Applications

No documented applications found