Excision catheter system for an aortic valve

An excision catheter system, comprising:

• an extraction catheter having a distal end, a proximal end, and a channel that extends from the distal end toward the proximal end;
• an extraction member disposed in the channel of the extraction catheter, the extraction member having a retracted configuration, where the extraction member is located inside the channel of the extraction catheter, and an expanded configuration, where the extraction member is expanded and positioned outside the extraction catheter;
• and
• a cutting catheter with a leading end, a trailing end spaced from the leading end in a distal direction, an inner channel that extends from the leading end toward the trailing end, and at least one cutting element, wherein when the extraction member is in the expanded configuration the leading end is configured to pass through the extraction member outside of the extraction catheter.

An excision catheter system, comprising:

• an extraction catheter having a distal end, a proximal end, and a channel that extends from the distal end toward the proximal end;
• an extraction member disposed in the channel and configured to exit the channel and expand;
• and
• a cutting catheter with at least one cutting element, the at least one cutting element being moveable relative to the extraction member and is responsive to electric energy.

An excision catheter system, comprising:

• a) an excision catheter assembly having:
• an extraction catheter having a distal end, a proximal end, and a channel that extends from the distal end toward the proximal end;
• an extraction member disposed in the channel, the extraction member having a retracted configuration, where the extraction member is located inside the channel of the extraction catheter, and an expanded configuration, where the extraction member is expanded and positioned outside the extraction catheter;
• and
• an introducer configured to slide within the channel of the extraction catheter, the introducer having a lumen sized and configured to receive a guidewire;
• and
• b) a cutting catheter assembly having:
• a cutting catheter with a leading end, a trailing end spaced from the leading end in a distal direction along a central axis, and an inner channel that extends from the leading end toward the trailing end;
• and
• at least one cutting element having a terminal end, the at least one cutting element having an insertion configuration, where the at least one cutting element is located inside the inner channel, a deployed configuration, where the terminal end of the at least one cutting element is located distal to the leading end in the distal direction, and a cutting configuration where the terminal end of the at least one cutting element is angularly offset with respect to the central axis.