Patent application number | Description | Published |
20100040685 | COLLAGEN-BASED MATRIX FOR USE AS RESTORATIVE MATERIAL, AND METHOD FOR PREPARING THE SAME - Disclosed herein are a collagen-based matrix for use as a restorative material and a method for the preparation thereof. An atelocollagen dispersion is spread at a predetermined thickness over a plate and freeze-dried to form a porous collagen membrane. An atelocollagen dispersion is separately spread over a plate and pressurized to form a dense collagen membrane. This is overlaid with the porous collagen membrane and immersed in an EDS solution in ethanol to crosslink the two membranes with each other. From the bilayer structure thus constructed, EDS is removed, followed by lyophilization and cutting into an appropriate size. | 02-18-2010 |
20130071645 | METHOD FOR SEPARATING ATELOCOLLAGEN, METHOD FOR PREPARING MODIFIED ATELOCOLLAGEN, ATELOCOLLAGEN PREPARED BY USING THE SAME AND COLLAGEN-BASED MATRIX - The present invention provides a method for separating an atelocollagen, wherein the process of ultrafiltration utilizing reusable filters and the process of diafiltration are combined, and by way of a single procedure line, atelocollagens can be extracted in a high purity from an animal tissue economically by removing impurities efficiently and conveniently. | 03-21-2013 |
20140303657 | VASCULAR ANASTOMOSIS DEVICE USING A SELF-EXPANDABLE MATERIAL OR BODY, AND ANASTOMOSIS METHOD FOR BLOOD VESSELS USING SAME - The present invention relates to an anastomosis device for blood vessels using a self-expandable material or body, and to an anastomosis method for blood vessels using same, and more particularly, to an anastomosis device for blood vessels using a self-expandable material or body, which is self-expandable in response to external stimulation and which is removable after a procedure, and to an anastomosis method for blood vessels using same. | 10-09-2014 |
20140377737 | METHOD FOR CULTURING ISLET CELLS AND METHOD FOR PREPARING CARRIER FOR ISLET CELL TRANSPLANTATION USING ATELOCOLLAGEN, AND ARTIFICIAL PANCREAS PREPARED USING SAME - The present invention provides a method of culturing pancreatic islet cells using a cationized atelocollagen prepared by ionization of high purity atelocollagen, a method of preparing a carrier for pancreatic islet cell transplantation using a cationized atelocollagen, and an artificial pancreas prepared using the same. According to the present invention, it is possible to increase the viability and/or glucose-dependent insulin secretion of pancreatic islet cells during culture of the cells by the use of a cationized atelocollagen or crosslinked atelocollagen scaffold obtained by ionization of high purity atelocollagen. In addition, it is possible to increase the viability and glucose-dependent insulin secretion of cultured and transplanted pancreatic islet cells by the use of a highly stable carrier for pancreatic islet cell transplantation that comprises cationized atelocollagen and alginate. | 12-25-2014 |