Title:
CANNULA AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/024816
Kind Code:
A1
Abstract:
Disclosed is a cannula that can decrease the rate of increase in resistance that is generated when penetrating an incision formed in tissue. The cylindrical cannula (1) configures a trocar (B) used during surgery; an incision member (C) can be inserted and removed therewithin; one side of the end portion of the cylinder forms a protruding slanted cut end (2); and a tapered surface (3) having an uneven width and a width that is wider on the protruding side (the side of point 2a) of the slanted cut end than the non-protruding side (the side of point 2b) is formed on the outer periphery of the slanted cut end (2).
Inventors:
MURAKAMI ETSUO (JP)
OGANE KAORU (JP)
OGANE KAORU (JP)
Application Number:
PCT/JP2010/064304
Publication Date:
March 03, 2011
Filing Date:
August 24, 2010
Export Citation:
Assignee:
MANI INC (JP)
MURAKAMI ETSUO (JP)
OGANE KAORU (JP)
MURAKAMI ETSUO (JP)
OGANE KAORU (JP)
International Classes:
A61B17/34; A61F9/007; A61M5/158; A61M25/00
Foreign References:
| US5300036A | 1994-04-05 | |||
| JPH03251357A | 1991-11-08 | |||
| JPH0716235A | 1995-01-20 | |||
| JP2003526461A | 2003-09-09 | |||
| JP2008142533A | 2008-06-26 |
Other References:
See also references of EP 2471475A4
Attorney, Agent or Firm:
NAKAGAWA INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Nakagawa international patent firm (JP)
Patent business corporation Nakagawa international patent firm (JP)
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