US Patent 11318018 Method of improving cardiac function

The present disclosure provides methods of improving cardiac function, including transcutaneously inserting at least one catheter into a heart, delivering a band to a ventricle of the heart via the at least one catheter, guiding the band through a plurality of spaces among a trabeculae in the ventricle, tightening the band in a single loop, locking the band in a loop, and removing the at least one catheter from the heart.