A61L2300/406

Metabolic labeling and molecular enhancement of biological materials using bioorthogonal reactions

The present application provides methods of functionalizing an organ or tissue of a mammal by administering a nutrient (e.g., peracetylated N-azido galactosamine Ac4GalNAz) to the mammal or by culturing an organ or tissue in a bioreactor containing such nutrient. The present application also provides methods of selectively functionalizing extracellular matrix (ECM) of an organ or tissue of a mammal by administering a nutrient (e.g., peracetylated N-azido galactosamine Ac4GalNAz) to the mammal. In some aspects, the present application provides a decellularized scaffold of a mammalian organ or tissue comprising an extracellular matrix, wherein the extracellular matrix of the decellularized scaffold is functionalized with a chemical group that is reactive in a bioorthogonal chemical reaction, such as an azide chemical group. The present application also provides biological prosthetic mesh and mammalian organs and tissues for transplantation prepared according to the methods of the application.

FIBER SCAFFOLDS FOR USE CREATING IMPLANTABLE STRUCTURES
20230061170 · 2023-03-02 · ·

A synthetic construct suitable for implantation into a biological organism that includes at least one polymer scaffold; wherein the at least one polymer scaffold includes at least one layer of polymer fibers that have been deposited by electrospinning; wherein the orientation of the fibers in the at least one polymer scaffold relative to one another is generally parallel, random, or both; and wherein the at least one polymer scaffold has been adapted to function as at least one of a substantially two-dimensional implantable structure and a substantially three-dimensional implantable tubular structure.

Fiber-Reinforced Bio-Material Composition and Methods of Use
20230121071 · 2023-04-20 ·

The present disclosure provides bio-material composition, comprising a dry potassium phosphate based mixture comprising: MgO, monobasic potassium phosphate, monobasic sodium phosphate, proteoglycans, calcium sodium phosphosilicate, and a plurality of spherically-shaped polymers, wherein a weight percent ratio of monobasic potassium phosphate to MgO is between about 3:1 and 1:1, wherein the dry potassium phosphate based mixture is configured to be mixed with the aqueous solution to thereby form a reabsorbable bio-material slurry, wherein the spherically-shaped polymers are between about 1-5 weight percent of the dry composition, and wherein the spherically-shaped polymers are absorbed faster than the remaining components of the reabsorbable bio-material slurry to thereby form pockets within the bio-material composition that enhance reabsorption of the bio-material composition.

Expandable penile prosthesis
11660193 · 2023-05-30 · ·

An embodiment includes a penile prosthetic comprising: an expandable conduit; a pump; a reservoir; a first conduit that couples the expandable conduit to the pump; a second conduit that couples the reservoir to the pump; and a plate that couples to the expandable conduit, wherein the plate includes a concave surface. Other embodiments are described herein.

Therapeutic material for skin ulcer

It is an object to provide a therapeutic material for a skin ulcer which has excellent therapeutic effects on intractable skin ulcers such as decubitus ulcers with pockets and huge decubitus ulcers. By applying the therapeutic material for decubitus ulcers consisting of a fibrous material holding an antibiotic and a cell proliferation accelerator therein which is formed into an approximately spherical shape to a site of decubitus in a state in which a defect extending to the dermis, subcutaneous tissue, muscle or bone occurs, it is possible to treat critical skin ulcers such as intractable decubitus ulcers with pockets and huge intractable decubitus ulcers, as well as to treat not only relatively mild decubitus classified as stage II according to the US National Pressure Ulcer Advisory Panel (NPUAP) staging system, i.e., decubitus having ulcers in a state in which a part of the dermis is deficient, but also severe decubitus that has progressed to stage III to IV according to the NPUAP staging system, particularly decubitus with intractable ulcers with pockets or decubitus with huge intractable ulcers.

Intraoral Device

An intraoral device, comprising an antiviral and/or antibacterial and/or antifungal ion releasing agent material(s) which, when said device is exposed to the oral cavity and to any gases, liquids and solids passing through the oral cavity, and is capable of inactivating viruses and/or bacteria and/or fungi penetrating into the oral cavity.

BIOLOGICAL TISSUE ADHESIVE SHEET, BIOLOGICAL TISSUE REINFORCEMENT MATERIAL KIT, AND METHOD FOR PRODUCING BIOLOGICAL TISSUE ADHESIVE SHEET

The present invention provides a biological tissue adhesive sheet having excellent tissue adhesiveness. The biological tissue adhesive sheet according to an embodiment of the present invention includes a nonwoven fabric made of fibers containing a crosslinked gelatin derivative, and the gelatin derivative is represented by Formula 1: Gltn-NH-L-CHR.sup.1R.sup.2, wherein Gltn represents a gelatin residue, L represents a single bond or a divalent linking group, R.sup.1 and R.sup.2 are each independently a hydrocarbon group having 1 to 20 carbon atoms or a hydrogen atom, and at least one selected from the group consisting of R.sup.1 and R.sup.2 is the hydrocarbon group.

DRUG-RELEASING POLYMER COMPOSITION AND DEVICE
20230149603 · 2023-05-18 ·

A drug-releasing polymer composition is disclosed. It may include a major component, which may be ethylene vinyl acetate, and may further include at least one or two release-modifying materials, and may further include at least one or two drugs. The release-modifying materials may be polyethylene glycol and polycaprolactone. The drugs may be minocycline and rifampin. There may be an interaction such that in the presence of two different release-modifying materials, drug release may be greater than with either release-modifying material alone. There may be an interaction such that in the presence of two drugs, drug release may be greater than with either drug alone, and antibacterial performance may be enhanced. Release durations as long as two months are possible. In addition, the composition can be provided on a medical device that is configured for implanting in body tissue for an extended time period.

DEVICES AND METHODS FOR TREATING A FISTULA

Described herein are devices used for treating a fistula, along with methods of treatment thereof, and methods of manufacturing the device.

Soft tissue repair grafts and processes for preparing and using same

Soft tissue repair grafts are provided for supporting, covering, and/or retaining an implant positioned in the body of a subject. The grafts are particularly suitable for use for pre-pectoral breast reconstruction with a breast implant or tissue expander. The grafts include positional notches for more accurate positioning in a subject. The grafts also include at least one cuff element which is folded to form a reinforced folded edge for suturing the graft more securely to adjacent tissues than previously known grafts. The grafts also include a plurality of arcuate slots which form a plurality of circular patterns arranged concentrically about a focal point, thereby enabling the grafts to expand without tearing and to conform more closely to the implant and/or adjacent body tissues such as the breast pocket, than previously known grafts. Acellular dermal matrices are particularly suitable for making the soft tissue repair grafts.