US 12,419,745 B2
Devices, systems, and methods for adjustably tensioning artificial chordae tendineae in a heart
Troy A. Giese, Blaine, MN (US); Christopher J. Koudela, New London, MN (US); James P. Rohl, Prescott, WI (US); Daniel Shuey, Pine City, MN (US); Larry M. Killeen, Elk River, MN (US); Joel T. Eggert, Plymouth, MN (US); and Aaron Abbott, Columbia Heights, MN (US)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Sep. 23, 2021, as Appl. No. 17/483,206.
Claims priority of provisional application 63/085,390, filed on Sep. 30, 2020.
Prior Publication US 2022/0096235 A1, Mar. 31, 2022
Int. Cl. A61F 2/24 (2006.01)
CPC A61F 2/2457 (2013.01) [A61F 2220/0016 (2013.01); A61F 2220/0075 (2013.01); A61F 2250/0007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for adjusting tension in an artificial chordae tendineae extending between a leaflet of a heart valve and papillary muscle or a heart wall, the system comprising:
a leaflet clip configured to be engaged with a leaflet of a heart valve and with the artificial chordae tendineae;
an anchor configured to be engaged with a papillary muscle or heart wall;
an artificial chordae tendineae extending between the leaflet clip and the anchor; and
a locking assembly associated with the anchor and having a housing with a longitudinal axis and a locking element shaped with respect to the housing to be axially movable but not rotatable within the housing;
wherein:
the artificial chordae tendineae extends through a pathway defined within the locking element of the locking assembly; and
the locking element is configured to be selectively axially shiftable between a tension-adjusting configuration allowing the artificial chordae tendineae to move relative to the locking assembly to increase and decrease tension on the leaflet, and a tension-setting configuration inhibiting movement of the artificial chordae tendineae relative to the locking assembly to set tension on the leaflet.