Textiles for implantation
Inventors
Nawalakhe, Rupesh Gajanan • Pawar, Sandip Vasant • Vad, Siddharth • Peterson, Matthew A. • Landon, David Robert • VanEvery, Zachary Charles
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-12746118-B2
Publication Date
2026-09-29
Expiration Date
Abstract
A fabric having a honeycomb weave pattern is provided for use with medical implants. The fabric may be heat treated to increase a thickness and texture of the fabric. The fabric may be compliant and compressible for providing cushioning within a patient's body. For example, the fabric may be applied to a prosthetic valve to cushion a portion of the prosthetic heart valve. The fabric may also be textured to provide enhanced friction between the prosthetic heart valve and the surrounding native tissue. Enhanced friction may be achieved by weave patterns or by the inclusion of protrusions or barbs in the fabric.
Core Innovation
The disclosed prosthetic heart valve comprises prosthetic valve leaflets supported by an expandable and compressible inner frame and an expandable sealing body positioned radially outward of the frame. Ventricular anchors capture native-valve leaflets against the outer surface of the sealing body, while friction bodies contact the captured leaflets to enhance securement. These friction bodies comprise fabric having a honeycomb weave pattern formed by fibers heat treated to increase weave thickness, loop patches, or barbed sutures.
Another configuration provides an anchor coupled to the frame and a cushioning pad coupled to the anchor to cushion against native valve tissue. In these anchoring arrangements, fabric coupled to the anchors or cushioning pads includes a honeycomb weave formed from heat-treated wavy fibers that increase thickness. The disclosed features cushion native tissue, enhance valve securement, reduce deployment force and leakage, and resist valve migration.
Claims Coverage
The relevant claims identify five independent claims covering an implantable prosthetic heart valve featuring heat-treated honeycomb-weave fabric on friction bodies or anchor pads, alongside alternative friction-body constructions.
Heat-treated honeycomb-weave friction bodies
An expandable and compressible prosthetic heart valve comprising an inner frame, an outward sealing body, and ventricular anchors capturing native-valve leaflets, wherein friction bodies contacting captured leaflets to enhance securement include a honeycomb-weave fabric formed by fibers heat treated to increase weave thickness.
Cushioning pad coupled to an anchor
A prosthetic heart valve comprising a frame supporting leaflets, an anchor adapted to anchor the frame to the native valve, and a pad coupled to the anchor to cushion it against the native valve, wherein the pad includes honeycomb-weave fabric formed by wavy fibers heat treated to increase weave thickness.
Heat-treated fabric coupled to ventricular anchors
A prosthetic heart valve comprising an expandable inner frame, an outward sealing body, ventricular anchors capturing native-valve leaflets, and friction bodies contacting captured leaflets to enhance securement, wherein fabric coupled to each anchor comprises a honeycomb weave formed by wavy fibers heat treated to increase weave thickness.
Loop-patch friction bodies
An expandable and compressible prosthetic heart valve comprising an inner frame, an outward sealing body, and ventricular anchors capturing native-valve leaflets against the sealing body, wherein friction bodies contacting the captured leaflets to enhance securement comprise a patch having a plurality of loops.
Barbed-suture friction bodies
An expandable and compressible prosthetic heart valve comprising an inner frame, an outward sealing body, and ventricular anchors capturing native-valve leaflets against the sealing body, wherein friction bodies contacting the captured leaflets to enhance securement comprise barbed sutures.
The independent claims cover five configurations utilizing heat-treated honeycomb-weave fabric, loop patches, or barbed sutures on friction bodies or anchor-coupled cushioning pads to enhance prosthetic-valve securement and cushion against native-valve tissue.
Stated Advantages
The friction bodies contact captured native-valve leaflets to improve contact friction and enhance securement of the prosthetic heart valve.
The cushioning pads cushion native tissue against the anchors.
The disclosed features reduce deployment force and leakage and resist valve migration.
Documented Applications
Implantation of a prosthetic heart valve in a native valve of the heart, with ventricular anchors capturing native-valve leaflets.
A prosthetic heart valve sized to replace a native mitral valve or a native tricuspid valve.
Interested in licensing this patent?