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Patent Searching and Data


Title:
MEDICAL MANIPULATOR BENDING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/039362
Kind Code:
A1
Abstract:
Provided is a medical manipulator bending structure that is excellent in terms of withstand load and bendability while realizing size reduction. The present invention comprises: a flexible tube 15 that is formed from a super elastic alloy; and a guide part 17 that is disposed inside the flexible tube 15 and guides a driving wire of a medical manipulator. The flexible tube 15 comprises: a plurality of ring parts 21 that are consecutively provided along an axial direction of the flexible tube 15; tube connection parts 23a, 23b that connect, at some parts in a circumferential direction, ring parts 21 that are adjacent to each other in the axial direction; and tube slits 25 that are defined on both circumferential sides of the tube connection parts 23a, 23b between ring parts 21 adjacent to each other in the axial direction and that permit bending of the flexible tube 15 facilitated by bending of the tube connection parts 23a, 23b. The bending rigidity of the guide part 17 is set so as to be smaller than the bending rigidity of the tube connection parts 23a, 23b of the flexible tube 15.

Inventors:
YAMAUCHI Yuichiro (3-10, Fukuura, Kanazawa-k, Yokohama-shi Kanagawa 04, 〒2360004, JP)
KUROKAWA Shimpei (3-10, Fukuura, Kanazawa-k, Yokohama-shi Kanagawa 04, 〒2360004, JP)
HOTODA Yuki (3-10, Fukuura, Kanazawa-k, Yokohama-shi Kanagawa 04, 〒2360004, JP)
KOBAYAKAWA Jun (3-10, Fukuura, Kanazawa-k, Yokohama-shi Kanagawa 04, 〒2360004, JP)
Application Number:
JP2018/030351
Publication Date:
February 28, 2019
Filing Date:
August 15, 2018
Export Citation:
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Assignee:
NHK SPRING CO., LTD. (3-10, Fukuura Kanazawa-k, Yokohama-shi Kanagawa 04, 〒2360004, JP)
International Classes:
A61B34/30; A61B1/005; A61B17/29; B25J17/02; B25J18/06
Domestic Patent References:
WO2007034664A12007-03-29
Foreign References:
JPS58159719A1983-09-22
Attorney, Agent or Firm:
SUDO Yuichi et al. (1-6-7, Atago Minato-ku Tokyo, 02, 〒1050002, JP)
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