公开(公告)号：US10945754B2

公开(公告)日：2021-03-16

申请号：US16396261

申请日：2019-04-26

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujisaki ,  Takamitsu Sakamoto ,  Michio Takayama ,  Hideto Yoshimine ,  Ken Yokoyama ,  Ryo Miyasaka

IPC: A61B17/16 ,  A61B17/32

Abstract: An ultrasound device includes: an ultrasound generator; an ultrasound probe; and a distal end treatment portion capable of forming a bone hole when pressed against a bone. The distal end treatment portion includes a base portion, and a distal end portion. The distal end portion includes projections and a valley portion between adjacent projections. Each projection is formed of at least one excision surface that is inclined from a base of the projection to a distal top of the projection. The excision surface is capable of finely crushing the bone. The valley portion includes a valley peak at a distal-most meeting point of adjacent projections such that a surface of the valley extending distally from a point at which the valley meets an outer surface of the base portion to the valley peak is inclined.

公开(公告)号：US20200038052A1

公开(公告)日：2020-02-06

申请号：US16582724

申请日：2019-09-25

Applicant: Olympus Corporation

Inventor： Ken Fujisaki ,  Takamitsu Sakamoto ,  Ken Yokoyama ,  Michio Takayama

IPC: A61B17/32 ,  A61B17/16

Abstract: An ultrasonic surgical instrument includes an elongated shaft having respective proximal and distal end sides. An ultrasonic transducer is secured to the shaft and is configured to transmit ultrasonic vibrations from the proximal end side toward a distal end side along a longitudinal axis of the shaft. A cutting portion includes an outermost shape-defining portion that when pressed at a tip of the block shape against a bone cuts the bone in a direction of a pressing force to form a bone tunnel and to produce small particle of bone. A burying portion is configured to direct a flow of the fluid, which contains the small particle of bone produced upon formation of the bone tunnel, toward a wall formed in the bone tunnel by the cutting portion along the direction of the pressing force and to bury the small particle of bone in the wall of the bone tunnel.

公开(公告)号：US10383642B2

公开(公告)日：2019-08-20

申请号：US15337271

申请日：2016-10-28

Applicant: OLYMPUS CORPORATION

Inventor： Sohei Ueda ,  Chie Onuma ,  Manabu Ishikawa ,  Michio Takayama ,  Takamitsu Sakamoto ,  Ken Fujisaki

IPC: A61B17/16 ,  A61B17/32 ,  A61B17/17 ,  A61B17/56

Abstract: A surgical procedure of preparing bone holes to fix an implanted tendon to a femur when performing reconstruction of a ligament in a knee joint, includes: bringing a treatment portion of an ultrasonic treatment instrument into contact with the femur in the knee joint, and applying ultrasonic vibration from the treatment portion to the femur, thereby cutting and forming a first bone hole from the inside of the knee joint to the femur in a predetermined depth.

公开(公告)号：US11439425B2

公开(公告)日：2022-09-13

申请号：US16686664

申请日：2019-11-18

Applicant: OLYMPUS CORPORATION

Inventor： Michio Takayama ,  Takamitsu Sakamoto ,  Ken Fujisaki

IPC: A61B17/32 ,  A61B17/16 ,  A61B17/56

Abstract: A surgical procedure of preparing bone holes to dispose an implanted tendon to a femur when performing reconstruction of a ligament in a knee joint, includes: forming a first bone hole in the femur; and applying ultrasonic vibration from a treatment portion of an ultrasonic treatment instrument to the femur, thereby cutting and expanding the first bone hole from the inside of the knee joint to the first bone hole of the femur along a predetermined depth, and forming a second bone hole having a polygonal shape, an approximately polygonal shape, an elliptical shape or an approximately elliptical shape to receive the implanted tendon.