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US 12,370,043 B2Granted
Device for securing heart valve leaflets
AssigneeCedars-Sinai Medical Center
InventorsRobert James Siegel, Lawrence Eric Ong, Werner Hafelfinger, Niclas Henning Zieger
Life of this patent
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Abstract
A fixation device for securing together leaflets of a heart valve is provided. The fixation device may comprise two plates that are disposed on either side of the tricuspid valve. The plates may be secured to one another by a locking clip, thereby securing the valve leaflets between the plates.
Claims14
A method of performing a procedure in a heart, comprising:
- providing a delivery catheter to a heart;
- passing a distal plate through the delivery catheter and into a right ventricle of the heart;
- drawing the distal plate against a leaflet of a tricuspid valve, wherein drawing the distal plate against the leaflet comprises applying tension to a guidewire that passes through a proximal plate;
- passing the proximal plate through the delivery catheter and into a right atrium of the heart;
- positioning the distal and proximal plates such that the leaflet of the tricuspid valve is between the distal and proximal plates;
- and
- securing the distal plate to the proximal plate by passing a proximal portion of a cylindrical member through a channel disposed along a longitudinal axis of the proximal plate, wherein a wall of the channel is positioned entirely proximal of a radially extending portion of the proximal plate.
4 more elements
A method of performing a procedure in a heart, comprising:
- passing a first member through a delivery catheter and into a ventricle of the heart, the first member being fixed in at least one degree of freedom to a cylindrical member disposed proximally thereof;
- passing a second member through the delivery catheter and into an atrium of the heart to allow expansion of an expandable structure of the second member, the expandable structure being coupled with and extending peripherally from a central tubular body of the second member, a portion of the central tubular body of the second member extending proximally from the expandable structure;
- positioning the first and second members such that a leaflet of a heart valve is disposed therebetween;
- moving a portion of the cylindrical member beyond a distal end of the expandable structure of the second member;
- after moving the portion of the cylindrical member beyond the distal end of the expandable structure of the second member, moving the cylindrical member of the first member into the central tubular body of the second member;
- and
- locking the first member to the second member by positioning the cylindrical member within the central tubular body of the second member while the cylindrical member is aligned with the central tubular body of the second member.
4 more elements
A method of performing a procedure in a heart, comprising:
- passing a distal plate through a delivery catheter into a ventricle of the heart;
- drawing the distal plate against a leaflet of a valve separating the ventricle from an adjacent atrium;
- passing a proximal plate through the delivery catheter and into the adjacent atrium of the heart, wherein a channel disposed along a longitudinal axis of the proximal plate receives a portion of a guidewire when the proximal plate is in a low profile configuration within the delivery catheter;
- positioning the distal and proximal plates such that the leaflet of the valve is between the distal and proximal plates;
- advancing a proximal portion of a cylindrical member proximally of a proximal most portion of a radially extending portion of the proximal plate;
- after advancing the proximal portion of the cylindrical member proximally of a proximal most portion of the radially extending portion of the proximal plate, passing the proximal portion of the cylindrical member through the channel disposed along the longitudinal axis of the proximal plate to a position within the channel proximal of the proximal most portion of the radially extending portion of the proximal plate;
- and
- securing the distal plate to the proximal plate.
5 more elements
Dependencies are inferred from the claim text.