Device for excision of heart valve

A device (100) for the excision of a heart valve via a percutaneous route having a proximal (20) and distal (30) end, comprising:

• a radially expandable cutting instrument, ECI, (50, 50′) capable of radial expansion from a closed (50′) to an open (50) configuration,
• wherein the open configuration provides a receptacle with a void (64) having an aperture (65) at one end,
• the distal edge of the aperture (65) forming a cutting edge (66) for excision of the heart valve,
• which receptacle is configured to receive and contain the excised heart valve,
• wherein the ECI (50′) in the closed configuration, is configured for passage through the lumen (42) of a delivery catheter (40),
• wherein the ECI (50) is at least partly conical in the open configuration, and
• wherein the receptacle is configured to compact and store the excised heart valve by contraction of the ECI from the open (50) to the closed configuration (50′);
• an expandable cutting block, ECB, capable of expansion from a closed (70′) to an open (70) configuration, disposed adjacent to the cutting edge (66),
• wherein the ECB in the open configuration (70) provides a support surface (77) to support the heart valve under excision by the ECI (50),
• wherein the ECB in the closed configuration (70′), is configured for passage through the lumen (42) of the delivery catheter (40);
• and
• a displacement mechanism (5, 6) for adjusting the distance between the cutting edge (66) and the ECB (70).