Prosthetic heart valve cooling
AssigneeMedtronic Vascular, Inc.
InventorsWei Wang, Benjamin Wong, Laura McKinley, Joshua Dudney, Tracey Tien, Karl Olney
Life of this patent
Estimating the term…
Abstract
Devices for, and methods of, compressing a stented prosthetic heart valve are disclosed. The method including inserting a stented prosthetic heart valve having a self-expandable stent frame into a container, initiating a cooling element in the container, transferring heat through a thermal conductor to cool an interior of the container, reducing a temperature of the self-expandable stent frame while located within the container to a critical temperature of not greater than 8° C., and compressing an outer diameter of the stented prosthetic heart valve while the stented prosthetic heart valve is at the critical temperature.
Claims20
A device for compressing a stented prosthetic heart valve, the device comprising:
- an inner wall defining a dwell chamber sized and shaped for receiving an entirety of a stented prosthetic heart valve in an expanded state, the dwell chamber defining a leading side opposite a trailing side;
- an outer wall connected to and surrounding an exterior of the inner wall to define a cooling chamber between the inner and outer walls;
- a bottom wall extending across the trailing side of the inner wall, the bottom wall closing the dwell chamber at the trailing side;
- a cooling element maintained within the cooling chamber;
- and
- a cap extending from the leading side and defining a passageway open to the dwell chamber and closed to the cooling chamber, wherein a diameter of the passageway tapers in extension from the dwell chamber.
A combination stented prosthetic heart valve and compressing device, the combination comprising:
- a stented prosthetic heart valve;
- and
- a compressing device comprising:
- an inner wall defining a dwell chamber sized and shaped for receiving an entirety of the stented prosthetic heart valve in an expanded state, the dwell chamber defining a leading side opposite a trailing side,
- an outer wall connected to and surrounding an exterior of the inner wall to define a cooling chamber between the inner and outer walls,
- a bottom wall extending across the trailing side of the inner wall, the bottom wall closing the dwell chamber at the trailing side,
- a cooling element maintained within the cooling chamber,
- a cap extending from the leading side and defining a passageway open to the dwell chamber and closed to the cooling chamber, wherein a diameter of the passageway tapers in extension from the dwell chamber.
A device for compressing a stented prosthetic heart valve, the device comprising:
- an inner wall defining a dwell chamber sized and shaped for receiving an entirety of a stented prosthetic heart valve in an expanded state, the dwell chamber defining a leading side opposite a trailing side;
- an outer wall connected to and surrounding an exterior of the inner wall to define a cooling chamber between the inner and outer walls;
- a cooling element maintained within the cooling chamber;
- and
- a cap extending from the leading side and defining a passageway open to the dwell chamber and closed to the cooling chamber, wherein a diameter of the passageway tapers in extension from the dwell chamber, and wherein the cap is removably assembled to the inner wall.
Dependencies are inferred from the claim text.