Abstract: A fluid-swellable fiber in particular for the use as a surgical suture, the fiber comprising chitosan, the fiber's swelling ratio being less than 100%, and a fabric comprising the fiber. Moreover, a method of manufacturing from a chitosan-containing solution a fiber comprising chitosan, wherein during manufacture, the solution is brought into contact with a coagulation medium containing at least one organic solvent, a method of removing a fiber from a living organism, wherein the fiber is at least partly dissolved in a solvent applied from the outside, and a kit comprising a chitosan containing fiber and a solvent for at least partly dissolving the fiber.
Abstract: A method for manufacturing a medical product comprising a hollow body (2), wherein at least part of a wall of the hollow body (2) is coated at least on the inside with a layer comprising a polymer; at least the part of at least the inside of the wall of the medical product is brought into contact with a mixture (6) of the polymer and the polymer is deposited from the mixture (6) on at least the part of the inside of the wall. And a medical product comprising a hollow body (2) with a wall consisting of one or more structural elements (16), at least a section of the wall being coated with a layer (15) comprising native chitosan, wherein both on the inside and the outside of the hollow body (2) at least some of the one or more structural elements (16) of the wall of the hollow body (2) are at least partly coated with the native chitosan layer (15). And a method for electrodepositing a polymer on an electrode from an acidic mixture of the polymer, wherein the mixture (6) comprises a multibasic acid.
Abstract: A method of biodissolving in an aqueous medium at least a part of a device, the part of the device being made of N-acetylchitosan with a degree of acetylation of more than 3% and less than 25%. In the method, the biodissolution of the part of the device is controlled by adjusting the pH of the aqueous medium in contact with the N-acetylchitosan part of the device to a value of equal or less than 6.0.