A device for regenerating musculoskeletal tissue having a scaffold comprised of fiber layers adapted to provide mechanical integrity to the scaffold in the form of increased tensile and compressive resistance and one or more other layers adapted to provide mechanical integrity and to provide a suitable biochemical environment.

An expandable endoluminal prosthesis may include a graft body and a support structure attached to the graft body. The graft body may include a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis. A first fiber matrix segment may be attached to and extend in a transverse direction along the tubular body. A second fiber matrix segment may be attached to and extend in a longitudinal direction along the tubular body.

Medical constructs with twisted cables formed from a plurality of collagen fibers twisted together to form strands and those strands twisted together to form cables and relate methods of twisting the collagen fibers to form the medical constructs while holding the fibers and strands of fibers in tension and twisting in a first direction (i.e., in a clockwise direction), then twisting them in a second opposing (counterclockwise) direction for a number of twists per inch.

A prosthetic heart valve includes a collapsible and expandable stent having a proximal end, a distal end, an annulus section adjacent the proximal end and an aortic section adjacent the distal end, the stent including a plurality of struts. The heart valve further includes a collapsible and expandable valve assembly including a cuff and a plurality of leaflets, the cuff being coupled to selected ones of the plurality of struts and having microspheres disposed therein. The microspheres are capable of expanding upon contact with blood.

A hybrid medical device that can aid in reconstructive or augmentative surgery of the breast is disclosed. The device can utilize a suitable biological collagen tissue matrix combined with a synthetic material, for example, that can impart a high initial strength to the repair site while permitting proper healing and revitalization of the implanted device.

A catheter-based delivery device is disclosed for delivering and deploying a prosthesis at a treatment site. The delivery device includes a sheath having a segment with a plurality of ribs, a plurality of slots and a helical spine that extends along the segment. The helical spine has a non-uniform width that provides torsional stiffness that varies along a length of the segment, wherein the torsional stiffness permits a rotational force or torque to be transferred from a proximal end to a distal end of the segment. A prosthesis may be disposed in a delivery state within the segment and may be radially aligned with a treatment site by rotating the sheath about a longitudinal axis thereof, such that torque applied to the sheath is transferred through the segment to permit the segment, and the prosthesis disposed therein, to be rotated substantially in unison with a remainder of the sheath.

According to various embodiments, there is provided a tissue scaffold device including a porous core including a plurality of fibres; and an outer portion at least substantially surrounding the porous core, the outer portion including a plurality of pores elongated along a longitudinal axis of the tissue scaffold device.

A prosthetic heart valve includes a sealing feature coupled to the inner frame at a coupling point and extending between the coupling point and a point of the outer frame that is radially outward of the coupling point in a direction substantially orthogonal to the longitudinal axis, the sealing feature comprising a plurality of layers.

An inter-vertebral disc prosthesis intended for percutaneous deployment comprises an expandable annular enclosure and an expandable nuclear enclosure. The expandable annular enclosure incorporates a reinforcing annular band along its periphery and is filled with in-situ curable rubber. The expandable nuclear enclosure is filled with a gas. The nuclear prosthesis further incorporates a novel, integrally molded sealing valve assembly and is stretchable and collapsible into a minimal profile for ease of insertion into a specially designed delivery cannula, and is inflation-assisted expandable into an inter-vertebral disc in which complete percutaneous nuclectomy has been performed.

Medical appliances may be formed of multilayered constructs. The layers of the constructs may be configured with various physical properties or characteristics. The disposition and arrangement of each layer may be configured to create an overall construct with a combination of the individual properties of the layers. Constructs may be used to create vascular prostheses or other medical devices.