1
Kogasaka Takahiro, Ogawa Akihisa, Nakada Akio, Kimura Shuichi, Kobayashi Norio, Kuramochi Makoto: A cavity retaining tool for bone surgery, a cavity retaining tool for general surgery, an endoscopic surgery system involving the use of a cavity retaining tool, and a procedure for surgery. Olympus Optical Co, November 19, 1997: EP0807415-A2 (61 worldwide citation)

The cavity-retaining tool for bone surgery of this invention comprises: a cavity-retaining sheath (1) which is inserted into the body and forms a cavity to act as a work space for bone surgery; a treatment channel (11) which is placed in the cavity-retaining sheath (1), and guides treatment tools ne ...


2
Kogasaka Takahiro, Ogawa Akihisa, Nakada Akio, Kimura Shuichi, Kobayashi Norio, Kuramochi Makoto: A cavity retaining tool for general surgery. Olympus Optical Co, September 3, 2003: EP1340467-A2 (54 worldwide citation)

A cavity-retaining tool (230) for surgery of this invention is insertable into body tissues to be ready for use and comprises: a cavity-retaining means (231) which retains a cavity for operation works in the body; and a soft cylinder member (233) which communicates with the cavity retained by the ca ...


3
Ogawa Akihisa, Kogasaka Takahiro, Nakada Akio, Konou Ryoichi: Apparatus and method for percutaneaously securing a working space, e.g. in lumbar discectomy. Olympus Optical Co, January 13, 1999: EP0890341-A1 (33 worldwide citation)

A surgical operation apparatus of this invention includes an operation sheath (4) having a cavity securing portion (13) that is inserted into vital tissue through the skin to secure a working cavity for a surgical operation in the body, and a sheet member (12) that allows an operation tool to be ins ...


4
Konou Ryoichi, Masubuchi Ryoji, Bito Shiro, Kira Jin, Kogasaka Takahiro, Okabe Hiroshi: System for evulsing elongated subcutaneous tissue. Olympus Optical Co, March 12, 1997: EP0761171-A2 (30 worldwide citation)

A system for evulsing subcutaneous tissue having an endoscope (20) to be inserted into subcutaneous tissue through a skin cut portion to observe tissue to be evulsed and existing under the skin, a dissecting unit to be inserted into the subcutaneous tissue through the skin cut portion so as to disse ...


5
Kasahara Hideyuki, Kogasaka Takahiro: Sheath with devices for endoscopic blood vessel harvesting. Olympus Optical Co, Terumo, July 2, 2003: EP1323382-A1 (24 worldwide citation)

According to one aspect of the present invention, there is disclosed a treatment sheath for endoscopic blood vessel harvesting, comprising a sheath main unit (10) which can be inserted into a body through a cut skin portion in order to harvest a blood vessel in the body, a channel (13) which is form ...


6
Kasahara Hideyuki, Kogasaka Takahiro: Endoscope sheath. Olympus Optical Co, July 2, 2003: EP1323373-A2 (18 worldwide citation)

An elongated sheath body for an endoscope has a channel provided in the sheath body to allow the endoscope to be inserted into the sheath body. The endoscope channel has a first opening at a distal end of the sheath body and a second opening at a proximal end of the sheath body. The endoscope-coveri ...


7
Dejima Takumi, Kogasaka Takahiro, Minosawa Ryo: Surgical treatment apparatus. Olympus Medical Systems, June 25, 2008: EP1935354-A2 (14 worldwide citation)

A surgical treatment apparatus according to the present invention includes an outer sheath, extending from a base portion subject to an operator's hand to the tip subject to insertion into a body cavity, that is provided with a working channel through which a treatment instrument can be passed; an i ...


8
Miyamoto Manabu, Kogasaka Takahiro, Dejima Takumi, Matsuno Kiyotaka, Yamatani Ken, Takeuchi Saori: (Ja) 処置用内視鏡, (En) Treatment endoscope. Olympus Medical Systems, Miyamoto Manabu, Kogasaka Takahiro, Dejima Takumi, Matsuno Kiyotaka, Yamatani Ken, Takeuchi Saori, TANAI Sumio, July 19, 2007: WO/2007/080974 (13 worldwide citation)

(EN) A treatment endoscope includes: a flexible sheath; one or more arm sections protruding from the tip end of the sheath and having a curved portion for performing curving operation; an open/close mechanism for changing the direction of the arm section to a direction apart from the center axis of ...


9
Miyamoto Manabu, Kogasaka Takahiro, Yamatani Ken, Dejima Takumi, Takeuchi Saori, Matsuno Kiyotaka: Endoscopic overtube. Olympus Medical Systems, July 18, 2007: EP1808134-A2 (11 worldwide citation)

An overtube according to this invention includes: an insertion part (5), that is inserted into a subject and has a lumen (3), through which a device insertion part of a device (endoscope 2) for performing a medical procedure inside a body of the subject is removably inserted, the insertion part bein ...


10
Konou Ryoichi, Masubuchi Ryoji, Bito Shiro, Kira Jin, Kogasaka Takahiro, Okabe Hiroshi: System for evulsing subcutaneous tissue. Olympus Optical Co, September 29, 2004: EP1462060-A1 (3 worldwide citation)

A system for evulsing subcutaneous tissue having an endoscope (20) to be inserted into subcutaneous tissue through a skin cut portion to observe tissue to be evulsed and existing under the skin, a dissecting unit to be inserted into the subcutaneous tissue through the skin cut portion so as to disse ...