Transcatheter prosthetic heart valve delivery system with controlled expansion of prosthetic heart valve

• Main Authors: TABOR, Charles, MURRAY, Robert J, SHIPLEY, Adam, CRISMAN, Andrew
• Format: Patent
• Language: English; French; German
• Published: 21.08.2019
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

A delivery system (100) for use with a prosthetic heart valve (114) having a stent frame to which a valve structure is attached includes a shaft assembly (110) including a distal end, an intermediate portion, and a first coupling structure (126) disposed near the distal end and configured to be coupled to a distal end of the prosthetic heart valve (114) via a first tether (122). A sheath assembly (106) defines a lumen sized to slidably receive the shaft assembly (110). The delivery system (100) is configured to transition from a loaded state in which the sheath assembly (106) encompasses the prosthetic heart valve (114) to a deployed state in which the sheath assembly (106) is withdrawn from the prosthetic heart valve (114). The first coupling structure (126) is configured to be manipulated in a first direction to provide a controlled expansion or contraction of the distal end of the prosthetic heart valve (114).