Device for improving cardiac function by implanting trabecular band
Inventors
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-11564798-B2
Publication Date
2023-01-31
Expiration Date
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 relates to transcatheterly delivering a band through a plurality of spaces among the trabeculae of a ventricle in a heart of a body. A catheter is inserted into the ventricle, and a guidewire passes through the catheter and loops through the plurality of spaces among the trabeculae. The band is guided by the guidewire through the plurality of spaces among the trabeculae.
The band is tightened in a single loop to pull walls of the ventricle inward and is locked into the single loop. The band is configured to be pulled by the guidewire through the plurality of spaces among the trabeculae of the ventricle, so that repositioning of papillary muscles and/or ventricular walls can be achieved as part of the transcatheter delivery approach. The looped band is described as providing combined papillary muscle repositioning and ventriculoplasty in one procedure.
The device further includes a pre-shaped catheter and/or a steerable catheter configured to facilitate guidewire looping through the spaces among the trabeculae. Additional options include multi-guidewire interconnection and guidewire removal/catching mechanisms, including magnet, a capture loop, or a guidewire catching basket. The band structure may include a hollow tube portion with materials described as PTFE, ePTFE, Dacron, and other inert synthetic material or biological material, and the locking can be implemented with locking structures such as a pull-string and suture lock, including a self-locking pull-string and bead-based locking with directional passage behavior.
Claims Coverage
The document provides two independent claims that collectively cover a transcatheter delivery device using a catheter and guidewire to loop through spaces among ventricular trabeculae, and a band tightened into a single loop and locked to pull ventricle walls inward. Across the independent claims, the main inventive structure is consistent while claim-by-claim emphasis differs in whether multiple catheters are used and how at least one catheter is configured as pre-shaped (and optionally steerable).
Transcatheter band delivery through trabecular spaces with looped guidewire
A device for transcatheterly delivering a band through a plurality of spaces among the trabeculae of a ventricle, comprising at least one catheter configured for insertion into a ventricle; at least one guidewire configured to pass through the at least one catheter and loop through the plurality of spaces among the trabeculae; and a band guided by the at least one guidewire through the plurality of spaces, tightened in a single loop to pull walls of the ventricle inward, and locked into the single loop.
Pre-shaped or steerable catheter for guidewire looping with pulled, locked band
The device is configured such that at least one of the at least one catheter is at least one of a pre-shaped catheter or a steerable catheter, and the band is configured to be pulled by the at least one guidewire through the plurality of spaces among the trabeculae of the ventricle.
Multiple catheters with looped guidewire and single-loop locked band
A device comprising a plurality of catheters configured for insertion into a ventricle; at least one guidewire configured to pass through at least one of the plurality of catheters and loop through the plurality of spaces among the trabeculae; and a band guided by the at least one guidewire through the plurality of spaces, tightened in a single loop to pull walls of the ventricle inward, and locked into the single loop.
Pre-shaped catheter in a multi-catheter configuration
At least one of the plurality of catheters is a pre-shaped catheter, and the band is configured to be pulled by the at least one guidewire through the plurality of spaces among the trabeculae of the ventricle.
Overall claim coverage centers on looping a guidewire through spaces among ventricular trabeculae using a catheter, guiding a band through those spaces, tightening the band into a single loop, and locking the band into that loop to pull ventricle walls inward, with independent coverage specifying catheter configuration as pre-shaped and/or steerable, and separately specifying a plurality-of-catheters arrangement with at least one pre-shaped catheter.
Stated Advantages
Provides combined papillary muscle repositioning and ventriculoplasty in one procedure.
Documented Applications
Combined papillary muscle repositioning and ventriculoplasty in one procedure.
Interested in licensing this patent?