The present disclosure relates to a method for preparing an absorbable haemostatic composition for the body and the haemostatic composition prepared thereby, and the present disclosure is for providing a method for preparing an absorbable haemostatic composition for the body and the haemostatic composition prepared thereby, wherein the haemostatic composition can be used directly on the wound site when bleeding occurs in the surgical area such as surgical operation, trauma, etc. so that hemostasis can be effectively performed, the haemostatic composition can perform wound sealing, tissue repairing promotion, wound surface tissue protection, infection prevention, etc., the haemostatic composition is contained in haemostatic products such as gauze (cotton yarn), sponge, etc. to accelerate the hemostasis speed of the bleeding site and enable rapid hemostasis to be able to shorten the hemostasis time at the same time.

Disclosed are a biosealant system and method for treatment of a pulmonary air leak comprising applying the biosealant system to the locus of the air leak.

The present invention is directed to hemostatic sealants having a compressed porous substrate, an electrophilic group containing component that is not gelatin or collagen, a nucleophilic group containing component, and a buffering agent. The present invention also relates to method for manufacture and use of such sealants to seal and/or achieve hemostasis.

Described are photocurable liquid adhesives, kits for preparing photocurable liquid adhesives, and methods for their preparation and use. Kits can include first and second components that can be mixed to prepare a photocurable liquid adhesive. The first component can include a liquid preparation including an aqueous liquid, one or more polymers containing phenolic groups, and a photoactivatable metal ligand complex. The second component can include an electron acceptor. Mixing the first component and the second component can create a photocurable liquid adhesive. The first and second components can be packaged in containers such as syringes, and the kits can include the containers and a cannulated coupler for fluidly coupling the containers to mix the container contents to prepare the photocurable liquid adhesive. A syringe dispensing tip and/or a light source for curing the photocurable liquid adhesive can also be included in the kits. Advantageous photocurable liquid adhesives are described that, absent curing, remain in flowable liquid form during typical temperatures of storage and use. The adhesives can include in or as a phenolic group-containing polymer component one or more of collagen, phenol enriched collagen, gelatin, phenol enriched gelatin, a collagen peptide composition, or a phenol enriched collagen peptide composition.

Provided are a biomedical tape, a preparation method thereof and use thereof. The biomedical tape comprises a hydrogel carrier in dry state and a functional nanomaterial encapsulated within the hydrogel carrier in dry state, and the hydrogel carrier in dry state comprises a thin film body of hyaluronic acid hydrogel and a dopamine-modified polyacrylic acid permeated into a surface of the thin film body of hyaluronic acid hydrogel. The preparation method for the biomedical tape comprises: preparing a hyaluronic acid hydrogel with the functional nanomaterial dispersed therein, and drying and curing the hydrogel to form a film to obtain the thin film body of hyaluronic acid hydrogel; and preparing a dopamine-modified polyacrylic acid solution, and permeating the solution into a surface of the thin film body of hyaluronic acid hydrogel by coating to obtain the biomedical tape.

A preparation method of calcium peroxide-mediated in situ crosslinkable hydrogel as a sustained oxygen-generating matrix, includes: a) reacting a natural or a synthetic polymer with Traut's reagent (TR) in a solvent, and synthesizing a polymer derivative having thiol group in backbone of the polymer derivative; and b) mixing and reacting a solution of the polymer derivative having thiol group with calcium peroxide (CaO.sub.2), and thereby forming a hydrogel, wherein in the step b), disulfide bonds (—S—S) are induced between backbones of the polymer derivative having thiol group attached by decomposition of calcium peroxide (CaO.sub.2), and thereby in situ crosslinking is formed.

The present invention discloses compositions and methods for repair and reconstruction of defects and injuries to soft tissues. Some aspects of the disclosure provide methods for corneal reconstruction by applying an engineered bioadhesive, glycidyl methacrylate-substituted gelatin and a visible light activated photoinitiator in presence of visible light to the corneal defect.

Disclosed is a dry composition comprising one or more polyols, which upon addition of an aqueous medium forms a substantially homogenous paste suitable for use in haemostasis procedures. The paste reconstitutes spontaneously upon addition of the liquid; hence no mechanical mixing is required for said paste to form. The composition may further comprise an extrusion enhancer, such as albumin. Also disclosed are methods of preparing said dry composition, a paste obtained from said dry composition and uses of said dry composition or paste for medical and surgical purposes.

Embolic materials, suspensions, kits and related methods useful for embolization are disclosed. An embolic material can comprise a resorbable microsphere including cross-linked gelatin as its primary ingredient and having a substantially spherical shape with a diameter of about 50 micrometers to about 1,500 micrometers, inclusive. The microsphere can optionally include one or both of a marker or an active agent. The microsphere can be cross-linked, such as with glutaraldehyde or formaldehyde, which can affect the microsphere's in vivo degradation profile and ability to withstand a sterilization process at certain temperatures. In an embodiment, the microspheres can resorb during an in vivo time period of between about 24 hours and about 15 weeks, inclusive. An embolization suspension can include a plurality of resorbable microspheres and a liquid carrier, and the suspension can be disposed in a syringe, vial or other applicator for administration to a patient.

The present invention relates to a cross-linked material having adhesion prepared by using tyrosinase derived from Burkholderia, preparation method thereof and application thereof, and specifically relates to the hydrogel composition having adhesiveness. The hydrogel composition having adhesiveness of the present invention is injectable through an injection or spraying, and can be used in 3D printing or preparation of adhesive hydrogel medical film, etc.