公开(公告)号：US10098654B2

公开(公告)日：2018-10-16

申请号：US15082625

申请日：2016-03-28

Applicant: OLYMPUS CORPORATION

Inventor： Takamitsu Sakamoto ,  Chie Onuma ,  Ken Fujisaki ,  Kiichiro Sawada ,  Kazuhiro Yoshida ,  Satoshi Takekoshi ,  Sohei Ueda ,  Yasuo Tanigami

IPC: A61B17/16 ,  A61B17/32 ,  A61B1/00 ,  A61B1/317 ,  A61B1/04 ,  A61B1/06

Abstract: An arthroscopical surgical method using an ultrasonic treatment device for a joint includes: transmitting ultrasonic vibration to a treatment portion of the ultrasonic treatment device, removing an injured region of an articular cartilage so that a subchondral bone is exposed, and forming a cartilage edge which is nearly angled at 90° with the exposed surface of the subchondral bone to form a pool-shaped depression; forming a hole which pierces up to a cancellous bone of the subchondral bone through the depression, and scratching blood vessels in the cancellous bone; causing bleeding from the blood vessels so that blood is retained in the depression via the hole.

公开(公告)号：US20200146707A1

公开(公告)日：2020-05-14

申请号：US16745144

申请日：2020-01-16

Applicant: Olympus Corporation

Inventor： Kiichiro Sawada ,  Chikayoshi Meguro

IPC: A61B17/32

Abstract: The disclosed technology is directed to a transducer unit used in a treatment instrument that comprises an ultrasonic transducer configured to generate ultrasonic vibrations. A cylindrically-shaped casing is configured to hold the ultrasonic transducer therein along a central axis. The cylindrically-shaped casing includes an outer circumferential portion having respective circular arc portions and extension portions formed thereon. A virtual polygon is formed by connecting together a plurality of virtual points located at positions outside of the outer circumferential portion and is separated by a predetermined distance from the central axis when a cross-section intersecting the central axis at right angles and a first virtual distance between the central axis and each side of the virtual polygon are defined. The circular arc portions each includes, as a radius from the central axis, a first length greater than the first virtual distance but smaller than the predetermined distance.

公开(公告)号：US11134977B2

公开(公告)日：2021-10-05

申请号：US16389211

申请日：2019-04-19

Applicant: OLYMPUS CORPORATION

Inventor： Kiichiro Sawada ,  Ken Fujisaki ,  Yasuo Tanigami ,  Hideto Yoshimine

IPC: A61B17/32 ,  A61B17/16

Abstract: An ultrasound probe includes a probe body, and a treatment unit. The treatment unit includes: a cutter that is provided at a distal end part of the treatment unit and that cuts the bone according to move of the treatment unit along a longitudinal axis in a state where ultrasonic vibration is being transmitted to the probe body; and a path that is provided in the treatment unit and through which debris of a bone that is cut by the cutter are discharged along the longitudinal axis toward a proximal end side with respect to the cutter. The path includes a first opening that is provided in a distal end surface of the cutter; and a second opening that is provided in a side surface part of the treatment unit, wherein the path allows the first opening and the second opening to communicate.

公开(公告)号：US11083482B2

公开(公告)日：2021-08-10

申请号：US16395476

申请日：2019-04-26

Applicant: OLYMPUS CORPORATION

Inventor： Hiroyuki Araki ,  Kiichiro Sawada ,  Takamitsu Sakamoto ,  Ken Fujisaki ,  Hideto Yoshimine

IPC: A61B17/32 ,  A61B17/16 ,  A61B17/00

Abstract: A method of performing a procedure on a meniscus, via an ultrasonic surgical tool. The ultrasonic tool includes a probe capable of transmitting ultrasonic vibration from a proximal end toward a front end. The probe includes a bent portion that is inclined with respect to a longitudinal axis of the probe, and a procedure portion that is disposed at the front end of the probe and has a plurality of cutting surfaces. The method includes: inserting the probe in a body; moving the probe through a space in between the femur and the tibia to position the procedure portion adjacent to the horizontal rupture in the meniscus; positioning a cutting surface of the procedure portion on a posterior portion of the meniscus; and resecting the horizontal rupture along an inclination of the meniscus to form an inclined resection plane.

公开(公告)号：US20200146706A1

公开(公告)日：2020-05-14

申请号：US16745133

申请日：2020-01-16

Applicant: Olympus Corporation

Inventor： Kiichiro Sawada ,  Chikayoshi Meguro

IPC: A61B17/32 ,  A61B17/16

Abstract: The disclosed technology is directed to a probe unit of an ultrasonic treatment tool that comprises an ultrasonic probe having respective opposed distal and proximal end sides in a longitudinal direction and configured to transmit ultrasonic vibrations. A treatment portion is attached to the distal end side of the ultrasonic probe in the longitudinal direction. The treatment portion includes a cutting surface of a shape having directionality. A handle portion having a cutting portion identifier that is engaged with an outer circumference of the proximal end side of the ultrasonic probe. The cutting portion identifier is configured to indicate a position of a reference side representing a direction in which the cutting surface is oriented and/or included in the cutting surface.

公开(公告)号：US10010338B2

公开(公告)日：2018-07-03

申请号：US15094131

申请日：2016-04-08

Applicant: OLYMPUS CORPORATION

Inventor： Takamitsu Sakamoto ,  Chie Onuma ,  Ken Fujisaki ,  Kiichiro Sawada ,  Kazuhiro Yoshida ,  Satoshi Takekoshi ,  Sohei Ueda ,  Yasuo Tanigami

IPC: A61B17/32 ,  A61B17/00

CPC classification number: A61B17/320068 ,  A61B2017/320072 ,  A61B2217/007

Abstract: In an arthroendoscopical surgical method, a resection target area, which is emphasized by fluorescence with use of a fluorescent agent under excitation light, is identified on a meniscus, and a resection line or an imaginary resection line is drawn. Using an ultrasonic treatment tool and an arthroscope, the resection target area is resected by a probe which generates ultrasonic vibrations, based on the resection line or imaginary resection line under visible-light illumination, and an inclined resection surface is formed.

公开(公告)号：US11583307B2

公开(公告)日：2023-02-21

申请号：US15930654

申请日：2020-05-13

Applicant: OLYMPUS CORPORATION

Inventor： Kiichiro Sawada ,  Hiroyuki Araki ,  Naoki Narumi

IPC: A61B17/32 ,  A61B17/16

Abstract: An ultrasonic transmitter unit includes: a sheath that forms a cylindrical shape and is having a proximal end and a distal end; an ultrasonic transmitter configured to be inserted into the sheath; and a cover member that covers a part of the ultrasonic transmitter and has an inner surface and an outer surface. The ultrasonic transmitter includes: a first area surrounded by the sheath; a second area protruding from the distal end of the sheath; and a distal-end treatment portion provided in a distal end of the second area. The cover member covers the second area of the ultrasonic transmitter, and exposes the distal-end treatment portion of the ultrasonic transmitter to an outside, and is made of fluorine-based resin.

公开(公告)号：US11266429B2

公开(公告)日：2022-03-08

申请号：US16745144

申请日：2020-01-16

Applicant: Olympus Corporation

Inventor： Kiichiro Sawada ,  Chikayoshi Meguro

IPC: A61B17/32

Abstract: The disclosed technology is directed to a transducer unit used in a treatment instrument that comprises an ultrasonic transducer configured to generate ultrasonic vibrations. A cylindrically-shaped casing is configured to hold the ultrasonic transducer therein along a central axis. The cylindrically-shaped casing includes an outer circumferential portion having respective circular arc portions and extension portions formed thereon. A virtual polygon is formed by connecting together a plurality of virtual points located at positions outside of the outer circumferential portion and is separated by a predetermined distance from the central axis when a cross-section intersecting the central axis at right angles and a first virtual distance between the central axis and each side of the virtual polygon are defined. The circular arc portions each includes, as a radius from the central axis, a first length greater than the first virtual distance but smaller than the predetermined distance.

公开(公告)号：US10123816B2

公开(公告)日：2018-11-13

申请号：US15082519

申请日：2016-03-28

Applicant: OLYMPUS CORPORATION

Inventor： Takamitsu Sakamoto ,  Chie Onuma ,  Kiichiro Sawada ,  Ken Fujisaki ,  Kazuhiro Yoshida ,  Satoshi Takekoshi ,  Sohei Ueda ,  Yasuo Tanigami

IPC: A61B17/32 ,  A61B17/06

Abstract: In an arthroendoscopical surgical method, a resection target area, and a freshening treatment area which becomes repair surfaces with bleeding, are identified, and a resection line and a freshening line are drawn on a tear site in a meniscus, which is emphasized by fluorescence with use of a fluorescent medicine under excitation light. Using an ultrasonic treatment tool and an arthroscope, the resection target area is resected by a probe which generates ultrasonic vibrations, based on the resection line and freshening line under visible-light illumination. Thus, an inclined resection surface is formed, and planar repair surfaces with bleeding are joined and repaired.