Patent application number | Description | Published |
20090112317 | Calcium-Containing Bone Implants - This invention relates to a method for preparing a porous bone implant containing a calcium-based mineral. The method includes immersing a porous matrix in an acidic solution containing a calcium-based mineral; removing the matrix from the solution; and exposing the matrix to an alkali to neutralize the acidic solution, thereby causing precipitation of the calcium-based mineral to obtain a porous bone implant containing a calcium-based mineral. | 04-30-2009 |
20100055149 | RE-ROLLABLE WRAPPING IMPLANT - A re-rollable membrane for wrapping around and protecting a cylindrical tissue having an injury site. The membrane includes a sheet of a porous matrix formed of cross-linked biopolymeric fibers. In one implementation, the sheet can be spirally rolled so that at least one portion overlaps another portion of the sheet and, upon absorption of a fluid, the overlapping portions adhere to each other closely so as to exclude penetration of cells. In another implementation, the sheet can be helically rolled to form a helix having a pitch of 2 mm to 40 mm and an inner diameter of 1 mm to 50 mm. Also disclosed are methods for making and using such re-rollable membranes. | 03-04-2010 |
20100166823 | BIOPOLYMERIC MEMBRANE FOR WOUND PROTECTION AND REPAIR - The present invention relates to a conformable and semi-permeable biopolymeric membrane suitable for tissue repair and protection. This membrane contains a first layer made from randomly oriented, reconstituted biopolymer fibers and, on top of the first layer, a coating layer made from biopolymer fibers. | 07-01-2010 |
20110021754 | BIOPOLYMERIC MEMBRANES - This invention relates to a sheet membrane for repairing a damaged tissue. The membrane includes an isotropic layer of cross-linked biopolymeric fibers in which the fibers are 10 to 1,000 cm in length. This invention also relates to a method of making an isotropic layer of cross-linked biopolymeric fibers. The method includes: (1) coacervating biopolymeric fibers (e.g., collagen-based fibers) having lengths of less than 1 cm dispersed in an aqueous solution to obtain coacervated biopolymeric fibers having lengths of 10 to 1,000 cm; (2) flattening the coacervated biopolymeric fibers into a layer; (3) drying the layer; and (4) cross-linking the biopolymeric. | 01-27-2011 |
20130004559 | FLAT SELF-CURLING PERMEABLE SHEET MEMBRANE - A flat self-curling permeable sheet membrane containing a matrix formed of crosslinked biopolymeric fibers. The matrix self-curls into a predetermined shape upon absorption of an aqueous fluid and is permeable to molecules having molecular weights not greater than 1×10 | 01-03-2013 |
20130084228 | METHOD OF PREPARING POROUS CARBONATE APATITE FROM NATURAL BONE - A method for preparing carbonate apatite from natural bones. The method includes obtaining cancellous bone particles; treating the bone particles with hot water and an organic solvent; repeating the treating step at least once; drying the bone particles; and heating the bone particles at 500° C. to 620° C. for 10 to 50 hours. | 04-04-2013 |
20130226314 | Collagen-coated Tissue-based Membranes - A collagen-coated tissue based membrane that is smooth on both sides so as to inhibit cell and tissue adhesion. Also disclosed are methods for making a collagen-coated tissue-based membrane. | 08-29-2013 |
20130345729 | COMPRESSION AND KINK RESISTANT IMPLANTS - A compression and kink resistant tubular implant for nerve repair. The implant includes a tubular biopolymeric membrane and a polymeric supporting filament. Also provided is a shaped compression resistant implant for ridge augmentation in dental surgery. Methods for producing the implants are also provided. | 12-26-2013 |
20130345826 | Implants for Bone and Cartilage Repair - An implant for the repair of bone and cartilage that includes a cell conductive zone that contains biopolymeric fibers and an osteoconductive zone that contains biopolymeric fibers and calcium-containing mineral particles. The biopolymeric fibers from one zone overlaps with the fibers in the other zone forming a stable physical and mechanical integration of the two zones thus conferring in vivo stability to the implant. | 12-26-2013 |
Patent application number | Description | Published |
20080220883 | LOW NOISE AND VIBRATION FLEXIBLE SHAFT ASSEMBLY - A rotatable torque transmitting flexible shaft assembly having a casing surrounding the shaft and a sheath of felt wrapped around and bonded to the shaft either throughout its length or at spaced intervals, to reduce transmission of noise and vibration between the shaft and the casing. Alternatively the felt sheath may be secured to the interior surface of the casing. | 09-11-2008 |
20100252359 | LOW INTERFACE NOISE ROTARY SHAFT TIPS - A rotary shaft having ends with a surface layer or raised portions made of a compressible, preferably elastic, material, the ends including the surface layer or raised portions being covered with relatively thin walled durable plastic tubing. | 10-07-2010 |
20110065517 | LOW NOISE FLEXIBLE SHAFT - A rotary flexible shaft for coupling between driving and driven member having female couplings has ends of noncircular cross-section. A strand of compressible material such as flocked yarn is helically wrapped around each end so as to leave spaces between turns which expose portions of the lateral surfaces of the ends. A coating of a silicone adhesive or other elastomer, or of a highly ductile material such as polytetrafluoroethylene, covers and is adherent to the strands and the exposed portions of the lateral surfaces of the shaft ends. Instead of a strand, the compressible material may constitute spaced ridges, islands, and/or protuberances adhering to the shaft ends. | 03-17-2011 |
20120021841 | Low Noise and Vibration Flexible Shaft - A flexible shaft having square or helical square tips with thermoplastic felt covering and adherent to the tips including the tip ends. The felt has fused bulges adjacent the ends. When the tips are inserted into mating recesses of driving and driven members, the felt is deformed to improve the fit between the tips and the recesses and reduce noise and vibration when the driving member is rotated. | 01-26-2012 |