Method of improving cardiac function

Inventors

Neustadter, David

Assignees

Cardiac Success Ltd

Abstract

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.

Core Innovation

The invention provides transcatheter/transcutaneous cardiac remodeling by improving cardiac function through delivering a band to a ventricle of a heart. A catheter is transcutaneously inserted into the heart, the band is delivered via the catheter, and the band is guided through a plurality of spaces among the trabeculae in the ventricle. The band is then tightened in a single loop and locked in the loop, followed by removing the catheter.

The disclosed technique further includes guiding or directing the band using spaces among trabeculae to achieve mechanical effects associated with tightening the loop. Tightening a band in a single loop is described as pulling multiple papillary muscles toward each other and/or pulling ventricular walls inward. The guidance and deployment are implemented by looping a guidewire through the plurality of spaces among the trabeculae and directing the band through those spaces while tightening into the loop.

Locking and tightening are implemented with a pull-string and a locking arrangement, including passing a pull-string through the band, pulling an end of the pull-string through at least one catheter to tighten the band, and locking the pull-string into the loop. The document also describes self-locking pull-string concepts, including locking into the loop. In addition, the tightness of the single loop can be constrained such that tightening continues until the loop reaches a predefined circumference, and the band can include structural configurations such as a hollow tube portion.

Claims Coverage

The provided independent claims are clm-00001 and clm-00011, each describing a transcatheter/transcutaneous method for improving cardiac function. Across both independents, the core inventive coverage is driven by looping a band (via catheter/guidewire routing) through spaces among ventricular trabeculae, tightening into a single loop, and locking/withdrawing the catheter or guidewire; dependent claims further add specific locking, material, and loop-size constraint features.

Overall claim coverage centers on creating a single-loop band deployed via catheter and/or guidewire routing through spaces among ventricular trabeculae, with tightening into the single loop and subsequent removal of the catheter/guidewire; disclosed dependent refinements include locking using a pull-string routed through a catheter, optional predefined circumference constraint, and specified band and band-structure/material options.

Stated Advantages

Documented Applications

No documented applications found