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：US11246620B2

公开(公告)日：2022-02-15

申请号：US16394362

申请日：2019-04-25

Applicant: OLYMPUS CORPORATION

Inventor： Ken Yokoyama

IPC: A61B17/32 ,  A61B17/16

Abstract: An ultrasonic surgical instrument for boring a hole in a femur, including: an ultrasonic vibrator capable of generating ultrasonic vibration; a probe including a proximal end portion connected with the ultrasonic vibrator and a distal end treatment portion capable of boring a bone hole in the femur, and transmitting the ultrasonic vibration; and a cylindrical member covering the proximal end portion of the probe and not covering an exposed portion including the distal end treatment portion. The distal end treatment portion includes a columnar portion having a cross-sectional area that is larger than that of a remainder of the exposed portion of the probe.

公开(公告)号：US11540854B2

公开(公告)日：2023-01-03

申请号：US16713773

申请日：2019-12-13

Applicant: Olympus Corporation

Inventor： Ken Fujisaki ,  Takamitsu Sakamoto ,  Ken Yokoyama ,  Yasuyuki Matsumura ,  Hideto Yoshimine

IPC: A61B17/32

Abstract: The disclosed technology is directed to an ultrasonic probe comprises a probe main portion configured to transmit ultrasonic vibration generated by an ultrasonic transducer. A treatment portion is configured on a distal side of the probe main portion along a longitudinal axis thereof. The treatment portion includes first direction surfaces disposed in a first direction intersecting the longitudinal axis and second direction surfaces that are adjacent to the first direction surfaces and are disposed in a second direction different from the first direction surfaces. The first direction surfaces further includes a plurality of surfaces formed into a staircase shape when being viewed from the treatment portion and one or more surfaces formed into a staircase shape when being viewed from a side opposed to the distal side of the treatment portion. The second direction surfaces further includes a plurality of surfaces formed into a staircase shape toward the distal side.

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：US11446051B2

公开(公告)日：2022-09-20

申请号：US16732829

申请日：2020-01-02

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujisaki ,  Takamitsu Sakamoto ,  Ken Yokoyama ,  Hideto Yoshimine

IPC: A61B17/32

Abstract: An ultrasonic vibration transmittable probe includes a probe body configured to transmit ultrasonic vibration generated by an ultrasonic transducer. A treatment section is provided on a distal end side of the probe body along its longitudinal axis and is configured to cut a treatment object with the ultrasonic vibration. The treatment section includes first to third cutting surfaces disposed at progressively proximal positions. A portion of the first cutting surface has a dimension along a first orthogonal direction orthogonal to the longitudinal axis that is smaller than a dimension of the second cutting surface along the first orthogonal direction.