The present disclosure provides methods of bioengineering sphincters having autologous smooth muscle cells isolated from human internal anal sphincter and autologous enteric neurospheres (neural progenitor cells) isolated from human small intestine (jejunum). The isolated neural progenitor cells and smooth muscle cells are co -cultured using dual layered hydrogels and allowed to form circular, intrinsically innervated internal anal sphincter constructs. Such innervated internal anal sphincter constructs, bioengineered internal anal sphincter constructs are useful as additive implants in the treatment of fecal incontinence.

The present invention addresses the problem of providing a wound contact member (or “contact layer”) that directly promotes wound healing when continuously performing negative pressure wound therapy (NPWT). As a solution, there is provided dry amniotic membrane manufactured by a specified drying process, that is, raw amniotic membrane placed inside a processing tank (10) is continuously heated using an infrared heater (14) provided inside the processing tank (10) while performing a depressurization operation that places the processing tank in a depressurized state and irradiation of the raw amniotic membrane with microwaves from a microwave generating device (30) provided inside the processing tank (10) to apply energy to water molecules present inside the amniotic membrane and cause drying during a pressure recovery operation that slightly raises the pressure inside the depressurized processing tank (10) toward atmospheric pressure. Amniotic membrane, which has been dried by repeating the above process and thereby retains its cell and tissue structure, is used as a contact layer when performing negative pressure wound therapy (NPWT) on an open abdominal wound and/or wound dehiscence, which increases the healing effect of NPWT.

The present invention is a method for producing allograft tissue by applying an antimicrobial solution to allograft tissue. The antimicrobial solution exhibits antimicrobial activity to make allograft resistant to microbial organisms, such as bacterium.

Sheet structures for regenerating damaged or diseased mammalian tissue that are formed from acellular dermal mammalian tissue. The acellular dermal mammalian tissue includes extracellular matrix (ECM) and a supplemental bioactive component. The supplemental bioactive component can comprise a nucleic acid, such as RNA, and/or a cell, such as an embryonic stem cell. The sheet structures induce angiogenesis and, thereby, regeneration of new mammalian tissue.

Biomaterials, implants made therefrom, methods of making the biomaterial and implants, methods of promoting bone or wound healing in a mammal by administering the biomaterial or implant to the mammal, and kits that include such biomaterials, implants, or components thereof. The biomaterials may include demineralized cortical fibers, which help to promote bone repair.

A method for damaged viable disc regeneration has the steps of identifying the damaged viable disc and inserting a cannula via Kambin's Triangle to an edge of an outer annulus of the disc; introducing a trocar into the cannula and penetrating the trocar into a central region of nucleus pulposus; removing a tissue biopsy sample from the nucleus pulposus for pathology and removing additional degenerative tissue from the central region to create a void or space; withdrawing the trocar from the cannula and inserting a needle into the cannula to the void or space; and injecting a regenerative disc material through the needle into the void or space to repair the damaged disc.

The present invention provides a method for preparing a bone protein preparation which contains for example growth factors. The present invention also provides a bone protein preparation obtained by the method and paste, putty, pellet, disc, block, granule, osteogenic device or pharmaceutical composition containing said bone protein preparation.

A tympanic construct fabricated from at least one amniotic membrane, at least one chorionic membrane, or at least one amniotic membrane and at least one chorionic membrane obtained from human birth tissue is provided. Methods of preparing a tympanic construct, methods of repairing tympanic membrane defects and surgical sites, as well as kits for the same are also provided.

The present invention provides a composition for adjusting biological tissue size and a method for adjusting the size of biological tissue using the said composition. The composition for adjusting the size of biological tissue according to the present invention can adjust the size of biological tissue according to the specifications of a microscope and the needs of a researcher, and can be used as a mounting solution to easily acquire an image of the biological tissue. Therefore, the composition can be usefully used to reveal the causes of and find treatment methods for various disorders.

Methods for treating a bioprosthetic tissue and treated bioprosthetic tissue are described. The methods comprise contacting the biological tissue with an anchor compound, the anchor compound comprising first and second functional groups. The first functional group is reactive with and couples a tissue functional group associated with the biological tissue. The second functional group is one of a bio-orthogonal binding pair. The biological tissue coupled to the anchor compound is then exposed to a linking compound. The linking compound comprises at least two functional groups, each comprising the other one of the bio-orthogonal binding pair. In a preferred embodiment, the bio-orthogonal binding pair is an azide and an acetylene. The method can be performed in the presence of a catalyst, preferably a copper catalyst. Alternatively, the method can be performed in the absence of a catalyst, wherein the acetylene is incorporated in a ring-strained cyclic compound, such as cyclooctyne.