Olympus Corporation

Olympus Medical Systems Corporation

Tatsutoshi Hashimoto

Shotaro Takemoto

Kiyotaka Matsuno

Kazuo Banju

Takumi Dejima

Tetsuya Yamamoto

Shinji Takahashi

Hiroshi Hashi

Tsutomu Okada

Yoshio Onuki

Kazushi Murakami

Manabu Miyamoto

Yasuhito Kura

Kunihide Kaji

Masatoshi Sato

Toshihiro Kitahara

Takaaki Komiya

Kazuki Honda

Ayano Ishioka

Ken Shigeta

Naoki Iwanaga

Koichi Kawashima

Hideyuki Kasahara

Nobuko Matsuo

Noriko Yokoyama

Yukitaka Kumagai

Takumi Isoda

Madoka Ito

Yusuke Nomura

Koji Nishizawa

Ryo Minosawa

Nobuko Kondoh

Hiroaki Ichikawa

Ryohei Komuro

Dejima Takumi

A medical system includes a medical device, an over-tube, and a console. The medical device includes an insertion portion. The over-tube is configured to receive the insertion portion. A console having a first connector is attached to the medical device and a second connector is attached to the over-tube. The over-tube has a tubular main body and a proximal-end portion. The proximal-end portion comprises a tubular member having an insertion port for receiving the insertion portion of the medical device therethrough. A base portion is coupled to the second connector and a moving mechanism is coupled to both the tubular member and the base portion. The moving mechanism is configured to cause the tubular member to move with respect to the second connector such that the tubular member has two or more degrees of freedom with respect to the second connector.

Medical over-tube, and medical device adapter having moving member and medical system having such medical over-tube

A medical device includes a long shaft member, a curved portion configured to be curved, a support member that is configured to be deformed along a curved shape of the curved portion, a guide member that extends from a distal end of the curved portion, and a linear member that includes a connection portion connected to the guide member, the linear member being inserted into the support member, and that pulls the guide member in accordance with a change of the curved shape. A central axis of the guide member is positioned apart from the central axis of the support member. The linear member which protrudes from the support member is inclined with respect to a longitudinal axis of the guide member and is connected to the connection portion.

Medical device

A suture device is provided with a longitudinal member; a pair of grasping members; a suture needle; a power transmitting member; an opening-closing operating portion; a pair of needle locking portions having a first needle locking member and a second needle locking member and locking or releasing the suture needle to or from the pair of grasping members; a pair of wire members connected to the pair of needle locking portions; a needle locking and operating portion that operates the pair of wire members; a link member having a first end and a second end connected to the pair of wire members; and rotatable support portions that rotatably support the link member.

Suture device

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 suture needle has: a flexible elongated shaft member; a passing mechanism for passing a suture needle between two gripping members, wherein the passing mechanism has fitting hole portions that are provided in the respective gripping members and that hold the suture needle in a fitting manner, a holding member movable in a direction intersecting the axis of each fitting hole portion and having a pressing surface which can press an outer circumferential surface of the suture needle held in the fitting hole portion, and a tensile-force-transmitting member coupled with the holding member and which can move along the longitudinal axis of the elongated shaft member, wherein the outer circumferential surface of the suture needle is pressed by the pressing surface against the inner circumferential surface of the fitting hole portion by the motion of the tensile-force-transmitting member.

Suture instrument

A grasping forcepsincludes: a pair of guide sectionsA andB that guide maneuvering wiresA andB in a direction of an axial line C of a sheath; an extending-and-retracting member (transmission section)that transmits displacement information of the maneuvering section to the maneuvering wiresA andB and outputs the displacement information to the intervention instrument; a distal direction movement inhibitor section (specific directional movement-inhibitor section)that allows the sheaths of the maneuvering wiresA andB toward the distal end; a proximal direction movement inhibitor section (specific directional movement-inhibitor section)that allows the sheaths of the maneuvering wiresA andB toward the distal end; and an locked-state-releasing sectionthat releases an engaging state of the guide sectionsA andB with the distal direction movement inhibitor sectionor the proximal direction movement inhibitor sectionbased on the displacement input by the maneuvering section. Accordingly, an medical intervention instrument can be provided that can maintain a certain attitude of the intervention instrument once established during intervention even if an external force is applied, and that can carry out identical operations simultaneously, i.e., manipulating of the intervention instrument and releasing of a certain attitude of the intervention instrument.

Medical intervention instrument

A suture device includes: a longitudinal member extended along a longitudinal axis; a first grasping member and a second grasping member provided at a distal portion of the longitudinal member and configured to enable opening-closing movement; an opening-closing mechanism configured to open and close the first grasping member and the second grasping member; a delivery mechanism configured to deliver a distal member between the first grasping member and the second grasping member, the distal member to which a suture thread is fixed; and an engage portion supported by one of the first grasping member and the second grasping member so as to protrude from a distal end of at least one of the first grasping member and the second grasping member and having an engaging-surface capable of engaging the suture thread.

A multi-degree-of-freedom forceps includes a insertion portion that has a first bending portion and a second bending portion connected to each other at both ends via an operating member; a treatment portion that is attached to the first bending portion and is used for tissue treatment; and an operating portion that is attached to the second bending portion to bend the second bending portion to thereby bend the first bending portion. The operating portion has a handle body capable of being swung relative to the insertion portion with the second bending portion as an operation center. The handle body has a grip portion that is gripped by a user in use. The grip portion is provided around the operation center or closer to the insertion portion side than the operation center.

Multi-degree-of-freedom forceps

A medical instrument system includes an elongated member having an inner space in a direction of a longitudinal axis, an insertion section installed at the inner space and having a bending section capable of being bent, a manipulation section configured to manipulate the bending section, a first manipulation member transmitting a driving force of the bending section in accordance with the manipulation by the manipulation section, a second manipulation member arranged in the direction of a longitudinal axis, a connecting section having a first connecting section and a second connecting section and capable of connecting the first manipulation member and the second manipulation member, and a switching mechanism having a first acting section and a second acting section and switching between a connection state and a release state in accordance with a relative movement between the elongated member and the insertion section.

Endoscope, and treatment instrument for endoscope

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 shock-absorbing mechanism includes a shaft having a linear member wound therearound, a base having a relative position fixed to a first end of the linear member and formed with a shock-absorbing space which spreads toward the radial outside from the outer peripheral surface of the shaft, and a passage formed in the base in communication with the shock-absorbing space and the outside of the base and causing a second end of the linear member to extend to the outside of the base.

Shock absorbing mechanism and medical instrument

A ligating apparatus including a thread receiving portion movably disposed at a distal end of an inserting part body. An outer circumference of the thread receiving portion forms the loop holding portion around which a knot forming loop formed from a ligature is disposed. When a first end of the ligature is pulled into the thread receiving portion, the knot forming loop is pushed out of the loop holding portion by a delivery portion of the knot pusher. The knot forming loop is further pushed by the delivery portion along the ligature toward tissue and ligated. Such ligating apparatus is capable of reducing a load on the tissue to be ligated during a ligating operation.

Ligating apparatus

A rotational force transmission mechanism has: a rotation-inputting member freely rotative and driven in a predetermined first direction and a second direction opposite the first direction by a predetermined operating member; a first rotation-transmitting member for receiving a rotational driving force supplied from the rotation-inputting member in the first direction; a second rotation-transmitting member, disposed to face the first rotation-transmitting member, for receiving a rotational driving force supplied from the rotation-inputting member in the second direction; a connection section disposed so that the rotational force acts in the direction in which the first rotation-transmitting member and the second rotation-transmitting member face each other, the connection section in the facing position transfers the rotational driving force received by the first rotation-transmitting member in the first direction to the second rotation-transmitting member and transfers the rotational driving force received by the second rotation-transmitting member in the second direction to the first rotation-transmitting member; and a rotation-outputting member rotated and driven by the first rotation-transmitting member in the second direction, and rotated and driven by the second rotation-transmitting member in the first direction.

Rotational force transmission mechanism, force-attenuating apparatus, medical device, and medical instrument-operation mechanism

A manipulation mechanism for moving an oscillating body in a soft endoscope in a stable locus such as for laparoscopic procedures. The mechanism has first and second oscillating portions oscillating on first and second imaginary planes and guide members which regulate oscillating locus of the first and second oscillating portions. A manipulation stick is fixed to the second oscillating portion and capable of moving on the second imaginary plane. The oscillating portions respectively have a force-transmitting-member attachment member, a pair of first support members, and a force receiving member. The pair of first support members is provided with first and second convex portions and each of the first and second guide members is provided with first and second groove portions formed so as to be closer to each other in a direction away from the manipulation reference plane.

Growing community of inventors

Tokyo, Japan

Tatsutoshi Hashimoto