摘要:
The present invention relates to a method for treating a skin wound in an individual, comprising applying to the skin wound of the individual a therapeutically effective quantity of gingival fibroblasts.
摘要:
A skin adhesive hydrogel formed by mixing in aqueous medium: (A) major proportion of a high molecular weight water-soluble polyvinylpyrrolidone having ring opened pyrrolidone groups and (B) a minor proportion of a water-soluble multifunctional amine-containing polymer to form a water insoluble, water swellable cross-linked salt between carboxyl groups of the ring opened pyrrolidone groups and basic amine groups of the polyfunctional amine-containing polymer. The reaction is advantageously carried out in the presence of a plasticizer.
摘要:
Artificial membrane for wound-dressings composed of two polypeptide layers, one of which at least, the inside layer which contacts the wound, is biologically resorbable and the outside layer has an asymmetric structure permeable to water and to drug solutions but pratically impervious to outside pathogenic agents. The inside layer, at least, is constituted from biodegradable copolymers of amino-acids and -diacids of which the --COOH functions are partially esterified with mono and/or di-ols.
摘要:
The present invention relates to a method for treating a skin wound in an individual, comprising applying to the skin wound of the individual a therapeutically effective quantity of gingival fibroblasts.
摘要:
An improved skin substitute is presented comprised of non-biological materials produced with a series of regularly-spaced pores and a nylon mesh netting. The top component is a thin (approximately 0.001″ thick) silicone elastomer in which pore holes have been vacuum-pulled; physically attached to the silicone elastomer is a fine knitted nylon fabric (12/1, 15/2 denier); incorporated into the silicone/nylon structure are several wound healing agents, including Vitamin E, Vitamin C, Chondroitin 4 Sulfate, Chondroitin 6 Sulfate and Immuno-10 (a highly purified fraction of Aloe Vera) in addition to porcine collagen peptide.The holes in the skin substitute provide a range of porosities to ensure minimum fluid accumulation beneath the skin substitute without wound desiccation. The three-dimensional nature of the nylon mesh in addition to the use of collagen peptides provides better acute adherence with a structure that supports the growth of new skin cells. The range of hole diameters preferred in the present invention is 0.75 mm to 1.05 mm and at holes centered at ¼″-⅓″, providing minimal fluid accumulation beneath the Temporary Skin Substitute, which will reduce infection complications and maximize wound healing.
摘要:
Membranes suitable for use as wound dressings and in particular as synthetic skin substitutes are disclosed. The membranes consist of a natural or synthetic polymer, a non-gellable polysaccharide and a cross-linking agent.The membranes of the invention may contain one or more additional components selected from water-loss control agents, emulsifying agents and plasticizers. An internal reinforcing material may also be provided to supplement the inherent mechanical strength of the membrane.Methods of forming such membranes are also disclosed.
摘要:
The invention relates to a method for producing a flat porous product, in which a solution of an elastomeric material is deposited on a temporary substrate and the elastomeric material is coagulated on the substrate from the solution with the aid of a nonsolvent, wherein the surface of the substrate has an adhesion to the coagulating elastomer which is such that, after coagulation, the elastomeric flat product can be removed from the substrate without damage and the side (macroporous zone or bottom layer) of the elastomeric flat product facing the substrate possesses pores having a diameter in the region of 20-200 .mu.m and has a porosity of more than 75%, a flat product which can be obtained according to this method for use as wound covering material and a method for treating wounds therewith.
摘要:
A material which transmits wound moisture, made up of an upper layer of an elastomer having a thickness of 0.01-0.2 mm which is provided with pores having a diameter not exceeding 0.7 .mu.m and a pore density of 1-75% of the surface, and a lower layer of an elastomer having a thickness of 0.05-1 mm which is provided with macropores having a diameter of 50-200 .mu.m, at least some of the walls of said macropores being provided with micropores having a diameter of 0.1-0.25 .mu.m, is provided. The material of the invention meets a number of conditions making it suitable for the use of artificial skin.