Patent classifications
A61L27/3629
Prosthetic venous valves
A conical shaped venous valve structure formed from collagenous mammalian tissue. The valve structure includes a plurality of fluid flow modulating means that open and allow antegrade blood to be transmitted out of the valve structure and, into and through an associated cardiovascular vessel, when the valve structure is disposed in the cardiovascular vessel and the antegrade blood exhibits a positive pressure relative to the exterior pressure, whereby a negative hydrostatic pressure gradient is generated or present proximate the flow modulating means and/or a first positive pressure differential between first internal valvular pressure and first external valvular pressure is generated proximate the flow modulating regions, and close and prevent retrograde blood from flowing into the valve structure and, thereby, cardiovascular vessel, when a positive hydrostatic pressure gradient is generated or present proximate the flow modulating means and/or the first positive pressure differential transitions to a second pressure differential between second internal valvular pressure and second external valvular pressure, the second pressure differential being lower than the first positive pressure differential.
Absorbable adhesives and their formulation for use in medical applications
Described are medical products including an adhesive containing a polypeptide component such as gelatin and a tackiness-providing polyhydroxy compound, such as at least one compound selected from the group consisting of glycerin and fructose. Such medical products can find use as a bolster material for use in conjunction with a surgical fastening device such as a stapler. Other medical applications utilizing a medical product of the invention include tissue repair and pharmaceutical delivery to a desired location. Related methods of manufacture and use are also described.
SEMI-SYNTHETIC TISSUE CONSTRUCTS FOR TISSUE REGENERATION
Methods and compositions for tissue regeneration of the present invention include a biocompatible porous composite of a decellularized tissue and an aptamer-functionalized hydrogel, wherein the aptamers of the aptamer-functionalized hydrogel specifically and reversibly bind to an active agent.
Graft materials containing bioactive substances, and methods for their manufacture
Described are packaged, sterile medical graft products containing controlled levels of a growth factor such as Fibroblast Growth Factor-2 (FGF-2). Also described are methods of manufacturing medical graft products wherein processing, including sterilization, is controlled and monitored to provide medical graft products having modulated, known levels of a extracellular matrix factor, such as a growth factor, e.g. FGF-2. Preferred graft materials are extracellular matrix materials isolated from human or animal donors, particularly submucosa-containing extracellular matrix materials. Further described are ECM compositions that are or are useful for preparing gels, and related methods for preparation and use.
GRAFT MATERIALS CONTAINING BIOACTIVE SUBSTANCES, AND METHODS FOR THEIR MANUFACTURE
Described are packaged, sterile medical graft products containing controlled levels of a growth factor such as Fibroblast Growth Factor-2 (FGF-2). Also described are methods of manufacturing medical graft products wherein processing, including sterilization, is controlled and monitored to provide medical graft products having modulated, known levels of a extracellular matrix factor, such as a growth factor, e.g. FGF-2. Preferred graft materials are extracellular matrix materials isolated from human or animal donors, particularly submucosa-containing extracellular matrix materials. Further described are ECM compositions that are or are useful for preparing gels, and related methods for preparation and use.
Structural Members For Prosthetic Mitral Valves
A self-expanding wire frame for a pre-configured compressible transcatheter prosthetic cardiovascular valve, a combined inner frame/outer frame support structure for a prosthetic valve, and methods for deploying such a valve for treatment of a patient in need thereof, are disclosed.
Prosthetic tissue valves
A prosthetic valve comprising a tubular shaped sheet member comprising an extracellular matrix (ECM) composition, the sheet member having a plurality of ribbons having proximal and distal ends, the distal ends of the ribbons projecting from the sheet member proximal end.
A BIOLOGICAL MATERIAL WITH COMPOSITE EXTRACELLULAR MATRIX COMPONENTS
A biological material with composite extracellular matrix component, in which decellularized small intestinal submucosa (SIS) is treated as the interlayer and decellularized urinary bladder matrix (UBM) is treated as superior and inferior surface layers. The interlayer is totally encapsulated by the superior and inferior surface layers, forming a sandwich structure. The biological material integrates the advantages of UBM and SIS: {circle around (1)} High bioactivity with bionic structure; {circle around (2)} UBM isolates the immunogenicity of SIS and directly contacts host tissue; {circle around (3)} SIS can make up for the disadvantage of low mechanical strength of UBM, the preparation of SIS is easier, and its thickness is subject to change after composition; {circle around (4)} raw materials of same origin are feasible for industrial large-scale production. The biological material can be applied to filling, reinforcement, restoration or reconstruction of fascia, meninx, pleura, pelvic floor, derma, solid viscera and various soft tissue defect, possessing good clinical practicability.
Extracellular Matrix Tissue Prostheses
Tissue prostheses having a base structure and a physiological sensor system. The tissue prostheses are adapted and configured to induce remodeling of damaged tissue and regeneration of new tissue and concurrently detect and monitor physiological characteristics when implanted in the subject.
Stent graft devices having collagen coating
Described are stent graft devices and methods for their preparation and use. Expandable stent graft devices of the invention include inner and/or outer coverings uniquely applied and associated with surfaces of the stent. In certain described embodiments, bioremodelable materials such as ECM materials are vacuum pressed onto and/or around elements of a stent in the manufacture of a stent graft device.