FLEXIBLE TUBE FOR ENDOSCOPE, ENDOSCOPIC MEDICAL DEVICE, AND METHODS FOR PRODUCING THE SAME

    公开(公告)号:US20230139268A1

    公开(公告)日:2023-05-04

    申请号:US18147338

    申请日:2022-12-28

    Abstract: Provided are a flexible tube for an endoscope, the flexible tube having a sleeve-shaped flexible-tube base having flexibility and a cover layer covering an outer periphery of the flexible-tube base, in which the cover layer includes a chain-extended product of a polyester having a naphthalene structure, and the chain-extended product includes a constituent component derived from at least one chain extender selected from the group consisting of (A) an epoxy compound, (B) an isocyanate compound, (C) an amine compound, (D) an oxazoline compound, (E) a carbodiimide compound having a molecular weight of less than 3,000, and (F) a carboxylic anhydride and a constituent component derived from a polyester having a naphthalene structure, an endoscopic medical device using the flexible tube, a method for producing the flexible tube for an endoscope, and a method for producing the endoscopic medical device.

Patent Agency Ranking