发明公开
- 专利标题： ACTIVE TUBE AND ACTIVE TUBE SYSTEM
- 专利标题（中）： 联合国儿童基金会
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申请号： EP04807213.6申请日： 2004-12-10
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公开(公告)号： EP1695655A1公开(公告)日： 2006-08-30
- 发明人: ESASHI, Masayoshi , HAGA, Yoichi , MIZUSHIMA, Masanori , MATSUNAGA, Tadao
- 申请人： Japan Science and Technology Agency , ESASHI, Masayoshi , HAGA, Yoichi
- 申请人地址： 1-8, Honcho 4-chome Kawaguchi-shi, Saitama 332-0012 JP
- 专利权人： Japan Science and Technology Agency,ESASHI, Masayoshi,HAGA, Yoichi
- 当前专利权人： Japan Science and Technology Agency,ESASHI, Masayoshi,HAGA, Yoichi
- 当前专利权人地址： 1-8, Honcho 4-chome Kawaguchi-shi, Saitama 332-0012 JP
- 代理机构： Marshall, John Grahame
- 优先权： JP2003415402 20031212
- 国际公布： WO2005055818 20050623
- 主分类号： A61B1/00
- IPC分类号： A61B1/00 ; A61M25/00 ; G02B23/24
摘要：
An active tube and its system are offered which can be directed by bending its tip, controlling the degree of bend, thereby easily capable of insertion into difficult positions, and which can be driven at low temperature at which it can be used for inspection and medical treatment.
A bending mechanism (21) is constructed by wiring an SMA coil (21e) along an outer side of a working channel tube (21a). The bending mechanism (21) is inserted into an outer skin tube (25) with a plurality of built-in weights (22). A front tip (23) is attached to the front end side of the bending mechanism (21) as a tip (2) of an active tube (1). A main tube (4) is connected through the working channel tube (21a) at the tip (2). A wire (21g) is connected to the SMA coil (21e). Said wire (21g) is inserted to the behind end side (41) of the main tube (4) in a wiring channel (4B9 of the main tube, thereby makes it possible to drive the bending mechanism (21) from outside.
A bending mechanism (21) is constructed by wiring an SMA coil (21e) along an outer side of a working channel tube (21a). The bending mechanism (21) is inserted into an outer skin tube (25) with a plurality of built-in weights (22). A front tip (23) is attached to the front end side of the bending mechanism (21) as a tip (2) of an active tube (1). A main tube (4) is connected through the working channel tube (21a) at the tip (2). A wire (21g) is connected to the SMA coil (21e). Said wire (21g) is inserted to the behind end side (41) of the main tube (4) in a wiring channel (4B9 of the main tube, thereby makes it possible to drive the bending mechanism (21) from outside.
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