Cormatrix Cardiovascular, Inc.

Cardiothoracic Systems, Inc.

Maquet Cardiovascular LLC

Aziyo Med, LLC

Corvivo Cardiovascular, Inc.

A-Med Systems, Inc.

Afx Inc.

Other

Purdue Research Foundation

Elutia Med LLC

Robert G Matheny

Charles S Taylor

Ivan Sepetka

Minh X Vo

Carlos C Chang

Selvamuthu K Natarajan

William Russell Kanz

Walid Najib Aboul-Hosn

Michael Guidera

Amr Salahieh

Dwight P Morejohn

Jodi Akin

Alfredo R Cantu

Craig N Ferrante

Theodore C Ormsby

Dany Berube

Federico J Benetti

Robert E Woodard

Beecher C Lewis

Lyndall Erb

William N Aldrich

Son M Gia

Eugene Edward Reis

Brent Ford Regan

Richard M Ferrari

Christian L Gilbert

Jeff A Krolic

Anna Fallon

Stephen Francis Badylak

William John Havel

Leslie A Geddes

Michael Perry

James A Magovern

Robert C Glines

Kelly J McCrystle

William E Schoenlein

Zachary Reinhardt

Sedig Noor

Fred J Obermiller

William Novick

Federico J Bennetti

Craig N Ferranta

The invention is a biodegradable polymer composition comprising a particulate biodegradable polymer, particulate extracellular matrix (ECM) derived from a mammalian tissue source, a therapeutic component that abates growth of bacteria and a liquid medium. The biodegradable polymer can change quality upon contact with a physiological parameter, such as temperature or pH that causes, for example, a liquid polymer to gel or harden. The polymer composition is adapted to induce regeneration of tissue in vivo.

Biodegradable polymer compositions

Prosthetic valves that include conical shaped base valve members having an annular engagement end, a closed distal end region that restricts fluid flow therethrough, and a plurality of elongated ribbon members, which transition from an open fluid flow configuration to a closed fluid flow configuration in response to expansion and contraction of the base valve member, and a support structure that is configured and adapted to exert retaining forces on the annular engagement ends of the base valve members, whereby the support structure (i) conforms to the shape of the annular engagement ends of the base valve members, (ii) securely positions the annular engagement ends of the base valve members adjacent to and, thereby, in contact with a valve annulus, whereby the annular engagement ends of the base valve members conform to the shape of the valve annulus, and (iii) the annular engagement ends of the base valve members adapt to at least one fluctuation in the configuration and/or dimension of the valve annulus, whereby the annular engagement ends of the base valve members maintain contact therewith.

Adaptable prosthetic tissue valves

Prosthetic heart valves having a conical shaped base valve structure formed from collagenous mammalian tissue and an expandable stent structure. The base valve structure includes a plurality of elongated ribbon members that are positioned proximate each other in a joined relationship, wherein the elongated ribbon members are positioned adjacent each other and form a plurality of fluid flow modulating regions that open when fluid into and through the base valve structure exhibits a positive pressure relative to the exterior pressure, i.e., a positive pressure differential, wherein the fluid is allowed to be transmitted out of the base valve structure, and transition to a closed configuration when the pressure differential between the interior valve pressure and exterior pressure reduces, wherein the fluid is restricted from flowing out of the base valve structure. The expandable stent structure includes a plurality of tethers adapted to pierce cardiovascular tissue and, thereby, position the base valve structure and, thereby, prosthetic valves formed therewith on said heart valve annulus.

Prosthetic heart valves

A prosthetic valve comprising a conical shaped sheet structure and a support structure, the sheet structure having a closed distal end and a plurality of elongated ribbon members that are positioned proximate each other in a joined relationship, whereby the ribbon members form a plurality of fluid flow modulating regions that close when fluid flow through the valve exhibits a negative flow pressure and open when fluid flow through the valve exhibits a positive flow pressure, the support structure having at least one elongated cardiovascular structure engagement member that is associated with one of the ribbon members and adapted to engage a cardiovascular structure.

Reinforced prosthetic valves

The invention is to articles of extracellular matrix. The articles comprise one or more sheets of mammalian extracellular matrix laminated together. A single sheet can be folded over and laminated on 3 sides. Two or more sheets can be laminated to each other at their edges. The sheets can further encase a composition comprising a cell or cells, such as for example, a stem cell. A single sheet can be folded over to encase a composition, or rolled to encase a composition with lamination at either end of the roll, for example. The invention also includes methods of using these articles to regenerate tissue at tissue defects, or heal wounds in damaged tissue.

Extracellular matrix (ECM) structures for tissue regeneration

Prosthetic heart valves having a conical shaped base valve structure formed from collagenous mammalian tissue. The base valve structure includes a plurality of elongated ribbon members that are positioned proximate each other in a joined relationship, wherein the elongated ribbon members are positioned adjacent each other and form a plurality of fluid flow modulating regions that open when fluid into and through the base valve structure exhibits a positive pressure relative to the exterior pressure, i.e., a positive pressure differential, wherein the fluid is allowed to be transmitted out of the base valve structure, and transition to a closed configuration when the pressure differential between the interior valve pressure and exterior pressure reduces, wherein the fluid is restricted from flowing out of the base valve structure.

A percutaneous transcatheter valve delivery method for replacing a dysfunctional heart valve; particularly, an atrioventricular (AV) valve, with a prosthetic valve comprising a base valve structure and a stent structure. The transcatheter implantation method accurately positions and securely engages the prosthetic valve in a valve annulus region.

Methods for replacing dysfunctional heart valves

A biocompatible and biodegradable construct comprising a base expandable member and an outer coating comprising poly(glycerol sebacate) (PGS), the base expandable member comprising acellular extracellular matrix (ECM) derived from a mammalian tissue source, the acellular ECM exhibiting a flexible, porous, expandable structure, which is adapted to expand upon exposure to and absorption of a bodily fluid, wherein the construct seals a perivalvular leak when disposed proximate thereto.

Systems, apparatus and methods for sealing perivalvular leaks

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.

Prosthetic tissue 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.

Prosthetic venous valves

Cardiovascular prostheses for treating, reconstructing and replacing damaged or diseased cardiovascular tissue that include particulate structures that are formed from PGS, cerivastatin and everolimus. The particulate structures are configured to modulate inflammation of damaged cardiovascular tissue in vivo by increasing expression of Kruppel like factor 2 (KLF-2), whereby localized expression of monocyte chemoattractant protein 1 (MCP-1) and C-C chemokine receptor type 2 (CCR2) is inhibited at transcriptional and translational levels as a function of the KLF-2 modulation.

Cardiovascular prostheses

A prosthetic valve comprising a conical shaped ribbon structure comprising an extracellular matrix (ECM) composition. The ribbon structure comprises a plurality of elongated ribbon members that are positioned proximate each other in a joined relationship, wherein the ribbon members are positioned adjacent each other and form a plurality of fluid flow modulating regions that open when fluid flow through the valve exhibits a negative flow pressure and open when fluid flow through the valve exhibits a positive flow pressure.

A prosthetic valve comprising a conical shaped ribbon structure comprising a polymeric composition. The ribbon structure comprises a plurality of elongated ribbon members that are positioned proximate each other in a joined relationship, wherein the ribbon members are positioned adjacent each other and form a plurality of fluid flow modulating regions that open when fluid flow through the valve exhibits a negative flow pressure and open when fluid flow through the valve exhibits a positive flow pressure.

An implantable medical product and method of use for substantially reducing or eliminating harsh biological responses associated with conventionally implanted medical devices, including inflammation, infection and thrombogenesis, when implanted in in a body of a warm blooded mammal. The bioremodelable pouch structure is configured and sized to receive, encase and retain an electrical medical device therein and to allow such device to be inserted into the internal region or cavity of the pouch structure; with the pouch structure formed from either: (a) first and second sheets, or (b) a single sheet having first and second sheet portions. After receiving the electrical device, the edges around the opening are closed by suturing or stapling. The medical device encased by the bioremodelable pouch structure effectively improves biological functions by promoting tissue regeneration, modulated healing of adjacent tissue or growth of new tissue when implanted in the body of the mammal.

Extracellular matrix sheet structures

A biocompatible and biodegradable construct having a base expandable member and an integral, internal support structure. The support structure is preferably formed from poly(glycerol sebacate) (PGS) or a magnesium alloy. The base member is preferably formed from acellular extracellular matrix (ECM) derived from small intestine submucosa (SIS) tissue that exhibits a flexible, porous, sponge-like structure adapted to expand upon absorption of a bodily fluid, wherein the construct seals a perivalvular leak when disposed proximate thereto.

Growing community of inventors

Norcross, GA, United States of America

Robert G Matheny