Transcatheter valve prosthesis

A method for implanting a replacement valve in patient's heart, comprising:

• advancing an elongate outer member from a first delivery catheter to form a loop around native valve leaflets and/or chords with the elongate outer member;
• partially deploying from a second delivery catheter a radially self-expandable tubular body having an inflow end and an outflow end, a valve disposed within a lumen of the tubular body, and a preformed groove disposed at an outer surface of the tubular body between the inflow end and the outflow end, the preformed groove extending at least partially around the tubular body and having a circumferential opening facing radially outward of the tubular body, such that, when the tubular body is partially deployed, the outflow end but not the inflow end is deployed from the second delivery catheter and the circumferential opening of the preformed groove is relatively larger than when both the outflow end and the inflow end are fully deployed from the second delivery catheter;
• moving the loop and native valve leaflet tissue and/or chords into the preformed groove through the opening;
• moving a trapping member into the preformed groove while the tubular body is partially deployed, the trapping member having a cross-sectional shape smaller than the opening of the groove when the outflow end but not the inflow end is deployed from the second delivery catheter;
• and
• deploying a remainder of the tubular body from the second delivery catheter after moving the trapping member into the preformed groove, and allowing the opening of the groove to become smaller than the cross-sectional shape of the trapping member.

A method for implanting a replacement valve in patient's heart, comprising:

• advancing an elongate outer member from a first delivery catheter to form a loop around native valve leaflets and/or chords with the elongate outer member;
• deploying from a second delivery catheter a radially self-expandable tubular body having an inflow end and an outflow end, a valve disposed within a lumen of the tubular body, and a preformed groove disposed at an outer surface of the tubular body between the inflow end and the outflow end, the preformed groove extending at least partially around the tubular body and having a circumferential opening facing radially outward of the tubular body, such that, when the tubular body is partially deployed from the second delivery catheter, the outflow end but not the inflow end is deployed from the second delivery catheter and the circumferential opening of the preformed groove is relatively larger than when both the outflow end and the inflow end are fully deployed from the second delivery catheter;
• moving the loop and native valve leaflet tissue and/or chords into the preformed groove through the opening;
• and
• moving a trapping member into the preformed groove after the tubular body is fully deployed from the second delivery catheter, the trapping member having a cross-sectional shape smaller than the opening of the groove when the outflow end but not the inflow end is deployed from the second delivery catheter.