Device for transcatheterly delivering a band around papillary muscles
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Publication Number
US-11344417-B2
Publication Date
2022-05-31
Expiration Date
Abstract
Embodiments of the present disclosure include a method of transcatheterly delivering a band to encircle multiple papillary muscles in a heart. The method may comprise transcutaneously inserting a catheter into a heart and delivering a first end of a first guidewire to a ventricle in the heart via the catheter. The method may further comprise looping a first end of a first guidewire around a first papillary muscle and a second end of a second guidewire around a second papillary muscle. The first end of the first guidewire and the second end of the second guidewire may be brought out of the body while the first and second guidewires remain looped around the first and second papillary muscles, respectively. The first and second guidewires may be interconnected, and at least one end of the first and second guidewires may be pulled to establish a single loop around the papillary muscles.
Core Innovation
The invention provides a device for transcatheterly delivering a band to encircle a plurality of papillary muscles in a heart. A catheter with a proximal end and a distal end is used, and at least one guidewire is configured to pass through the distal end to loop around the plurality of papillary muscles. The band is configured to pass through the distal end and to encircle the plurality of papillary muscles such that it contacts outer peripheral boundary portions of the papillary muscles.
In the described arrangement, the band is pulled by the at least one guidewire to encircle the plurality of papillary muscles. By enabling the band to contact the outer peripheral boundary portions, the band pulls the plurality of papillary muscles toward each other, thereby bringing the papillary muscles together through the tightened band encirclement.
The described examples further include mechanisms and structures for tightening and locking the band, including pulling/guidewire interconnection arrangements that bring guidewire ends out of the body to form a single loop. The description also includes embodiments in which the band includes a hollow tube or a tube/ring or stent-like frame with expansion or balloon frame structure, optionally using pull-strings and transcatheter suture locks or self-locking beaded cable-tie style locking.
Claims Coverage
The identified independent claims are clm-00001 and clm-00013. Both independent claims share a common core inventive concept of transcatheter delivery of a band around multiple papillary muscles via a catheter-delivered guidewire that pulls the band to bring the papillary muscles toward each other, with each claim adding specific scope-defining structural variations.
Transcatheter band encirclement of papillary muscles with guidewire-pulled tightening
A device for transcatheterly delivering a band to encircle a plurality of papillary muscles in a heart, comprising a catheter with a proximal end and a distal end, at least one guidewire configured to pass through the distal end to loop around the plurality of papillary muscles, and a band configured to pass through the distal end and to contact outer peripheral boundary portions of the plurality of papillary muscles so the band pulls the plurality of papillary muscles toward each other, wherein the band is configured to be pulled by the at least one guidewire to encircle the plurality of papillary muscles.
Guidewire forms and hollow-tube band portion for guidewire-pulled encirclement
A device for transcatheterly delivering a band to encircle a plurality of papillary muscles in a heart, comprising a catheter with a proximal end and a distal end, at least one guidewire configured to pass through the distal end to loop around a plurality of papillary muscles, and a band configured to be pulled by the at least one guidewire to encircle the plurality of papillary muscles to contact outer peripheral boundary portions and pull the plurality of papillary muscles toward each other, wherein the at least one guidewire includes at least one of a string, a thread, a wire, or a suture, and wherein at least a portion of the band includes a hollow tube.
Overall claim coverage centers on transcatheter delivery using a catheter-delivered guidewire loop around multiple papillary muscles, followed by pulling a band so it contacts outer peripheral boundary portions and pulls the papillary muscles toward each other. The scope further includes variations that define guidewire form and a hollow-tube portion of the band.
Stated Advantages
Improves cardiac function by pulling the plurality of papillary muscles toward each other.
Documented Applications
Transcatheter delivery of a band to encircle multiple papillary muscles in a heart to bring papillary muscles toward each other.
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