Patent ID: 8926576
Filing Date: 2015-01-06
Classification: A61B,A61M,F04C

Abstract:
1. A medical device for endoscopically conducting negative pressure therapy on a bursiform cavity having an opening in a body, the medical device comprising: a longitudinal axis member comprising a lumen extending from a proximal end to a distal end of the longitudinal axis member along a longitudinal axis and that is configured to be inserted through the bursiform cavity, the longitudinal axis member is configured to be inserted into the body; an expansion part which is provided at the distal end of the longitudinal axis member, the expansion part having a plurality of wire members being deformed outward in a radial direction of the longitudinal axis member to follow an inner wall of the bursiform cavity; a suction member comprising a porous sponge member including a plurality of vacancies and covers an outer surface of the expansion part, the suction member is configured to be inserted into the bursiform cavity in an axial direction of the longitudinal axis member from an opening of the bursiform cavity to a position where the suction member contacts with a bottom of the bursiform cavity to determine a position at which the expansion part is expanded, and when the suction member is inserted into the bursiform cavity and the expansion part is expanded, a region from the opening of the bursiform cavity to the inner wall of the bursiform cavity is closely contacted by a contact surface of the suction member and sucked by the suction member; a suction source which is provided at the proximal end of the longitudinal axis member and connected to the lumen to suck the inner wall of the bursiform cavity via the suction member; and a closing member which is provided at an axial end of the suction member to close the opening of the bursiform cavity to airtightly seal the bursiform cavity.