Olympus Medical Systems Corporation

Olympus Corporation

Kazushi Murakami

Yasuhito Kura

Yoshio Onuki

Takaaki Komiya

Hiroaki Ichikawa

Kazuki Honda

Takehiro Nishiie

Tsutomu Okada

Shinji Takahashi

Masatoshi Sato

Takumi Dejima

Tetsuya Yamamoto

Takayasu Mikkaichi

Kiyotaka Matsuno

Shotaro Takemoto

Tatsutoshi Hashimoto

Junichi Kogiso

Mamoru Nakada

Manabu Miyamoto

Kosuke Motai

Ayano Ishioka

Ken Yamatani

Yusuke Nomura

Satoko Suzuki

Noriko Kuroda

An implant placement device includes a sheath; a long-axis member having an opening on a distal end side, movable along an axis, and a lumen communicating with the opening; a stylet movable in the axis and provided within the lumen to be turnable around the axis; an operating part on a proximal end side of the stylet to turn the stylet around the axis; a guide part on the proximal end side of the sheath to guide the operating part in a predetermined direction, thereby moving the sheath in the axis with respect to the stylet and turning a distal end portion of the stylet around the axis; and a coupling portion formed at the distal end of the stylet, detachably coupled with an implant, and moving in the axis and turning around the axis along with the stylet and the implant according to an operation of the operating part.

Implant placement device, coupling support, and endoscopic treatment tool

A medical treatment endoscope according to the present invention is provided with: a flexible sheath capable of a bending operation; an arm section protruding from the tip of the sheath and capable of a bending operation; an operation stick formed to allow a procedure instrument to pass therethrough so that the operation stick is operated by an operator in an attempt to bend the arm section; and a channel unit having a first channel which allows the procedure instrument to pass therethrough so that the channel unit is inserted through the operation stick detachably.

Medical treatment endoscope having an operation stick formed to allow a procedure instrument to pass

A medical apparatus according to the present invention includes: a flexible sheath; an arm section having a bending part capable of bending operation and a first channel capable of inserting a procedure instrument therethrough, the arm section being disposed to protrude from a tip of the sheath; and an operation stick having a second channel connected to the first channel and a bending operating part connected to the arm section by an operation-transmission member, wherein the operation stick has: a regulation section for regulating movement of the bending operating part; and a falloff-preventive section for engaging with the procedure instrument inserted in the second channel to prevent the procedure instrument from falling from the operation stick.

Medical apparatus

A medical system includes: a treatment instrument having an insertion portion configured by an exterior member, and an insertion member that is inserted into the exterior member and is longer than the exterior member; an insertion portion inserting/pulling-out device to transmit a driving force to the exterior member or the insertion member configuring the insertion portion of the treatment instrument, the insertion portion inserting/pulling-out device advancing/retreating at least one of the exterior member and the insertion member; and a driving force non-transmitting portion provided to the insertion member, the driving force non-transmitting portion preventing a driving force of the insertion portion inserting/pulling-out device from being transmitted to the exterior member when the insertion member is moved by a predetermined distance.

Medical system and endoscope system

A tissue fastening apparatus related to the present invention includes; a tissue fastening tool formed of a wire wound into a coil shape provided with a first tissue fixing section which is hooked onto a first biological tissue and a second tissue fixing section which is hooked onto a second biological tissue; a tubular puncturing tool which extends a tissue fastening tool and accommodates the stretched tissue fastening tool inside of the puncturing tool; a fastening tool pusher in which the distal end thereof is inserted into the puncturing tool and dispenses the tissue fastening tool inserted into the puncturing tool from a distal end of the puncturing tool when the fastening tool pusher advances; and a rotating mechanism to rotate the puncturing tool when the fastening tool pusher advances.

Tissue fastening method

Endoscopic surgical operation method includes: a step of lifting a living tissue including an diseased tissue located distally relative to an operation channel of an endoscope inserted through a natural orifice; a step of suturing a proximal region and a distal region of the living tissue positioned basal relative to the diseased tissue lifted by a suturing means section projecting distally from the operation channel of the endoscope after the lifting; and a step of resecting the living tissue between the sutured regions and the diseased tissue endoscopically after suturing the proximal region and the distal region of the living tissue surrounding the diseased tissue.

Endoscopic surgical operation method

A medical manipulator which includes: a plurality of arms formed in a cylindrical shape a distal end portion of which is made of a rigid member having a bending portion capable of bending; an insertion portion made of a rigid member having a plurality of channels in which base ends of the plurality of arms are connected to a distal end of the insertion portion so as to connect lumens of the arms to the plurality of channels; a photographic device provided at the distal end of the insertion portion; an operation portion that operates the bending portion; and a transmission member that connects the bending portion and the operation portion, in which the bending portion has: a first bending portion that is capable of bending in a predetermined direction by an operation of the operation portion, and a second bending portion provided in a base end than the first bending portion that is capable of fixing the plurality of arms in a bent state so as to mutually separate, and the transmission portion has: a first region which is flexible, and a second region which is rigid and connected to a base end portion of the first region.

Medical manipulator, treatment system, and treatment method

A tissue fastening apparatus includes a tissue fastening tool, with fastens a first biological tissue and a second biological tissue so as to bring the tissues into close contact and an applicator for indwelling the tissue fastening tool. The tissue fastening tool is made of an elastic wire rod and is wound in a coil shape. The applicator includes a needle tube accommodated in an inner cavity with the tissue fastening tool stretched, a stylet inserted into the inner cavity of the needle tube nearer to the proximal side than the tissue fastening tool, and a rotating mechanism that rotates the stylet around an axis when the stylet is moved toward a distal end of the needle tube. The tissue fastening tool and the stylet are disengageably engaged with each other and integrally and rotatably connected with each other. The rotating mechanism rotates the stylet in a direction opposite to the winding direction of the tissue fastening tool as seen from the proximal side.

Tissue fastening apparatus

A ligation apparatus that ligatures living tissue using a clip and provides an optimal ligation apparatus for ligaturing living tissue in a body cavity. The ligation apparatus includes a clip with a clip claw member that is advanced and retreated relative to a pressing member to open and close, a sheath configured to accommodate the clip such that the clip claw member is not exposed to the outside, an advance and retreat restricting mechanism which restricts advance and retreat of the pressing member relative to the sheath at a distal end portion of the sheath and allows advance and retreat of the clip claw member relative to the pressing member according to advance and retreat of the operation wire relative to the sheath to allow the clip ligaturing living tissue, and a releasing mechanism which releases at least a portion of the clip when the clip ligatures the living tissue.

Ligation apparatus

A ligation apparatus includes a clip having a clip claw member advanced and retreated relative to a pressing member to be opened and closed, a sheath configured to accommodate the clip such that the clip claw member is not exposed to the outside, an advance and retreat restricting mechanism restricting advance and retreat of the pressing member relative to the sheath at a distal end portion of the sheath allowing advance and retreat of the clip claw member relative to the pressing member according to advance and retreat of the operation wire relative to the sheath so as to allow the clip ligaturing living tissue, and a releasing mechanism releasing at least a portion of the clip so that the clip ligatures the living tissue.

A treatment instrument operation unit is provided with a drive unit, an operation portion installation section and a command signal output section. The drive unit drives an operation portion for operating each treatment section of the respective treatment instruments. The operation portion is attached to the operation portion installation section provided to the drive unit. The command signal output section outputs an installation start signal to a controller for notifying that the installation of the treatment instrument has begun upon installation of the operation portion in the operation portion installation section. After outputting the installation start signal from the command signal output section to the controller, the drive unit drives the operation portion installation section to the position where the operation portion is allowed to be installed based on the control signal outputted form the controller.

Treatment instrument operation unit and medical system with treatment instrument operation unit

An apparatus is provided which assists operations required for a medical instrument. A tubular portion and a therapeutic member of the instrument are inserted through a channel of an insertion tube of an endoscope. In the apparatus, a first drive unit enables the therapeutic member to perform the desired therapeutic operations responsively to a first command signal and a second drive unit enables the tubular portion inserted in the channel to convey responsively to a second command signal. An input device is provided at which two kinds of commands are allowed to be inputted command by command. The two kinds of commands allow the therapeutic member and the tubular portion to be driven in parallel with each other. A controller provides the first and second drive units with the first and second command signals, respectively, in accordance with the two kinds of commands.

Apparatus for assisting operations of medical instrument attached to endoscope

Tissue fastening tool and applicator for indwelling the same within body, and tissue fastening method through natural orifice

A medical system according to the present invention includes: a medical instrument provided with a treatment portion for performing treatment operations on living body tissue; a treatment portion displacement mechanism for displacing the position of the treatment portion of the medical instrument; a treatment detection portion that detects whether the treatment portion is in a treatment state or a non-treatment state; and a control portion that controls displacement of the treatment portion by controlling the treatment portion displacement mechanism according to detection results from the treatment detection portion.

Medical system

A medical device of the invention includes: a treatment instrument including a treatment portion which is used extended from a distal end of an endoscope insertion portion having a treatment instrument channel, an operation portion for operation of advancing/retreating an operation wire coupled to the treatment portion, and a treatment instrument insertion portion in which the operation wire is advanceably/retreatably inserted, the treatment instrument insertion portion having a predetermined flexibility and inserted into the treatment instrument channel; a detecting portion for detecting advancing/retreating moving amount of the treatment instrument insertion portion; a treatment portion operating device to which the operation portion is installed, the treatment portion operating device advancing/retreating the operation wire to operate the treatment portion; an operation instructing portion for instructing operation of the treatment portion; and a control device for judging a state of the treatment instrument insertion portion and driving the treatment portion operating device by a moving amount obtained by correcting an advancing/retreating amount of the operation wire, based on a detection result from the detecting portion according to an instruction from the operation instructing portion.

Growing community of inventors

Hino, Japan

Kazushi Murakami