Title:
電気手術用処置器具
Document Type and Number:
Japanese Patent JP5037727
Kind Code:
B2
Abstract:
The treatment device for electrosurgery of the present invention includes a sheath (11) that has a distal end portion (11a) and a proximal end portion (11b); a needle-like electrode portion (50) that has a distal end and a proximal end, is inserted into the sheath such that a direction toward the distal end from the proximal end becomes a direction toward the distal end from the proximal end, and treats a target site at the distal end; a first electrode (51) that is provided to the distal end of the needle-like electrode portion and exposed to the outside; a second electrode (52) of which the relative positional relationship with respect to the first electrode is fixed at a position separated from the first electrode toward the proximal end; an insulator (53) that insulates the first electrode from the second electrode by being interposed between the first and second electrodes; a first conductive portion that applies a high-frequency current to the first electrode; and a second conductive portion that applies a high-frequency current to the second electrode.
Inventors:
Keita Suzuki
Hideki Fujii
Hideki Fujii
Application Number:
JP2011532370A
Publication Date:
October 03, 2012
Filing Date:
December 08, 2010
Export Citation:
Assignee:
オリンパスメディカルシステムズ株式会社
International Classes:
A61B18/12; A61B18/14
Domestic Patent References:
| JP2005144142A | 2005-06-09 | |||
| JP2002224135A | 2002-08-13 | |||
| JP2002514097A | 2002-05-14 | |||
| JP2006280862A | 2006-10-19 | |||
| JP2006512959A | 2006-04-20 | |||
| JPH09140723A | 1997-06-03 | |||
| JP2000185053A | 2000-07-04 | |||
| JP2005144142A | 2005-06-09 | |||
| JP2002224135A | 2002-08-13 | |||
| JP2002514097A | 2002-05-14 | |||
| JP2006280862A | 2006-10-19 | |||
| JP2006512959A | 2006-04-20 | |||
| JPH09140723A | 1997-06-03 | |||
| JP2000185053A | 2000-07-04 |
Foreign References:
| WO2008152674A1 | 2008-12-18 |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Suzuki Mitsuyoshi
Tadao Takashiba
Hiroshi Masui
Masatake Shiga
Suzuki Mitsuyoshi
Tadao Takashiba
Hiroshi Masui