Patent ID: 11957581
Assignee: MEDTRONIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A system for replacing a heart valve of a patient, the system comprising:
a delivery device including:
a first tube assembly comprising a nose piece attached to a distal end of a distal end portion of an inner tube;
a primary capsule configured to be disposed over the distal end portion of the inner tube in a loaded state of the delivery device;
a secondary capsule is configured to be disposed within the primary capsule and over the distal end portion of the inner tube in the loaded state; and

a prosthetic heart valve comprising a stent frame and a valve structure attached to the stent frame, wherein the prosthetic heart valve is configured to circumscribe the distal end portion of the inner tube while being compressively retained within the secondary capsule and the primary capsule in the loaded state,
wherein the primary capsule is configured to be proximally retracted relative to the secondary capsule and the first tube assembly to a partially deployed state of the delivery device where at least a portion of the secondary capsule is radially expanded outside a distal end of the primary capsule and at least a portion of prosthetic heart valve is configured to partially radially expand within the secondary capsule outside of the primary capsule when moving the delivery device from the loaded state to the partially deployed state, wherein the secondary capsule restrains the prosthetic heart valve from fully expanding in the partially deployed state, and
wherein the secondary capsule is configured to be proximally retracted relative to the first tube assembly from the partially deployed state to a fully deployed state of the delivery device, and the secondary capsule is configured to be proximally retracted relative to the prosthetic heart valve from the partially deployed state to the fully deployed state by proximally retracting the primary capsule relative to the prosthetic heart valve, wherein the prosthetic heart valve is positioned distally outside of a distal end of the secondary capsule to fully radially expand the prosthetic heart valve in the fully deployed state.