Title:
MEDICAL ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2012/014838
Kind Code:
A1
Abstract:
Provided is a medical actuator which is capable of remotely controlling a tool attached to the tip of an elongated pipe section to change the attitude thereof with high accuracy and preventing the friction between mutually contacting portions without having detrimental effects on a living body. The medical actuator includes an elongated spindle guide section (3), a tip member (2) provided at the tip thereof so as to be freely changeable in attitude, and a tool (1) rotatably attached to the tip member (2). The tip member (2) rotatably supports a spindle (13) that retains the tool (1). The spindle guide section (3) includes a rotating shaft (22) for transferring rotation to the spindle (13), and a guide hole (30a) which penetrates from end to end. The medical actuator allows an attitude control member (31) to be axially moved back and forth and thereby change the attitude of the tip member (2), the attitude control member (31) being retractably inserted in the guide hole (30a). A DLC film is formed on the surface of at least one mutually contacting portion of a plurality of parts, the parts moving relative to each other.
Inventors:
ISOBE, Hiroshi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
磯部浩 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
NAGANO, Yoshitaka (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
永野佳孝 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
磯部浩 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
NAGANO, Yoshitaka (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
永野佳孝 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
Application Number:
JP2011/066838
Publication Date:
February 02, 2012
Filing Date:
July 25, 2011
Export Citation:
Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
ISOBE, Hiroshi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
磯部浩 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
NAGANO, Yoshitaka (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
ＮＴＮ株式会社 (〒03 大阪府大阪市西区京町堀１丁目３番１７号 Osaka, 〒5500003, JP)
ISOBE, Hiroshi (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
磯部浩 (〒37 静岡県磐田市東貝塚１５７８番地 ＮＴＮ株式会社内 Shizuoka, 〒4380037, JP)
NAGANO, Yoshitaka (1578 Higashikaizuka, Iwata-sh, Shizuoka 37, 〒4380037, JP)
International Classes:
A61B17/16; A61B19/00; B25J17/02; B25J18/06
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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Claims: