摘要:
PROBLEM TO BE SOLVED: To provide a prosthesis for facilitating reconstruction of a hollow organ or a part of hollow organ in an organism.SOLUTION: The prosthesis for facilitating reconstruction of a hollow organ or a part of hollow organ in an organism includes at least one kind of polymer material which is biocompatible and biodegradable, being provided with a biodegradable hollow tubular support member having a porous external layer and a substantially nonporous internal layer and a tissue-derived biomaterial arranged on the outer surface of the porous layer of the support member, and/or on the inside of at least a part of the porous layer, and/or on the surface of the substantially nonporous layer opposed to the porous layer. The tissue-derived biomaterial is selected such that the hollow organ or a part of the hollow organ can be reconstructed in an organism. A manufacturing method of the prosthesis and the medical use of the prosthesis, particularly use in reconstructing a hollow tubular organ, at least a part of esophagus, in particular, are also disclosed.
摘要:
A patch for replacement of a portion of bladder wall following partial cystectomy includes a multi-layered membrane of soft silicone with a thickness of about 600 microns so as to be sufficiently elastic to be able to withstand the dilatations due to expansion and deflation of the bladder, a surface layer of texturized silicone that is arranged to face an outside of a bladder to reduce a risk of adhesion of fibrotic capsule, and an inner coating of pyrolytic turbostatic carbon that is arranged to face an inside of the bladder.
摘要:
An injectable aqueous composition of hyaluronic acid or one of the salts thereof, one or more polyol(s) and lidocaine is used for cosmetic purposes or for therapeutic purposes. It has improved viscoelastic rheological properties and long in vivo persistence. The polyol is chosen, for example, from glycerol, sorbitol, propylene glycol, mannitol, erythritol, xylitol, maltitol and lactitol. The particular properties are obtained by heat sterilizing the mixture.
摘要:
The present invention describes a rapid method for preparing stem cell and physiologically acceptable matrix compositions for use in tissue and organ repair. Compared with previous tissue engineering materials, the stem cell-matrix compositions of the present invention do not require long-term incubation or cultivation in vitro prior to use in in vivo applications. The stem cells can be from numerous sources and may be homogeneous, heterogeneous, autologous, and/or allogeneic in the matrix material. The stem cell-matrix compositions as described provide point of service utility for the practitioner, wherein the stem cells and matrix can be combined not long before use, thereby alleviating costly and lengthy manufacturing procedures. In addition, the stem cells offer unique structural properties to the matrix composition which improves outcome and healing after use. Use of stem cells obtained from muscle affords contractility to the matrix composition.
摘要:
PROBLEM TO BE SOLVED: To provide a mechanically stable scaffold of high porosity to accelerate healing through cell growth and internal tissue growth, and provide an appropriate method for producing such a hollow-structured scaffold, designed to solve one of the most difficult problems of a biocompatible scaffold in a regenerative medicine that requires an implantable, biocompatible and biodegradable scaffold to enable the direct transplantation of healthy tissues into a damaged tissue area. SOLUTION: This invention relates generally to an organ replacement device or a regenerative medical device, designed to provide a biocompatible and biodegradable scaffold capable of accelerating integral cell growth that forms a hollow chamber, as well as a method for producing such a device by melt-blowing a web of flexible polymer fibers in the presence of porogen to produce a seamless, three-dimensional shape. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
A matrix, including epithelial basement membrane, for inducing repair of mammalian tissue defects and in vitro cell propagation derived from epithelial tissues of a warm-blooded vertebrate.