Patents by Inventor Takamitsu Sakamoto

Takamitsu Sakamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200138471
    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 at least two cutting surfaces and an edge portion having a different shape than an outermost edge of the treatment section.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 7, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Ken YOKOYAMA, Hideto YOSHIMINE
  • Publication number: 20200138470
    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. The treatment section includes multiple cutting surfaces having different dimensions in a first orthogonal direction orthogonal to the longitudinal axis.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 7, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Ken YOKOYAMA, Hideto YOSHIMINE
  • Publication number: 20200138469
    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.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 7, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Ken YOKOYAMA, Hideto YOSHIMINE
  • Publication number: 20200113595
    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.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Applicant: Olympus Corporation
    Inventors: Ken Fujisaki, Takamitsu Sakamoto, Ken Yokoyama, Yasuyuki Matsumura, Hideto Yoshimine
  • Publication number: 20200078041
    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.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 12, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Michio TAKAYAMA, Takamitsu SAKAMOTO, Ken FUJISAKI
  • Patent number: 10568495
    Abstract: Provided is a scanning endoscope system including: an illumination-light emitting portion that is inserted into a body of a patient and that emits illumination light emitted from a light-source portion toward an imaging subject in the body in a spot-like manner; a light scanner that scans the illumination light on the imaging subject; and a light detector that is disposed at a body surface of the patient, and that detects reflected light coming from the scanning position in the imaging subject, at which the illumination light is scanned by the light scanner.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: February 25, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Masashi Yamada, Atsuyoshi Shimamoto, Mitsuru Namiki, Keiichiro Nakajima, Takamitsu Sakamoto, Mikihiko Terashima, Yoko Okabe, Yu Kondo
  • Publication number: 20200038052
    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.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 6, 2020
    Applicant: Olympus Corporation
    Inventors: Ken Fujisaki, Takamitsu Sakamoto, Ken Yokoyama, Michio Takayama
  • Publication number: 20190335986
    Abstract: An optical-scanning-type observation probe is provided with: an imaging optical system that illumination light scanned by an optical scanner enters and that focuses the illumination light in the form of a spot, multiple times; a projection optical system that emits illumination light coming from a focus position focused by the imaging optical system, toward a subject in the form of a spot; and a light-receiver that is provided independently of the imaging optical system and the projection optical system and that receives reflected light of the illumination light, the reflected light coming from the subject, via a light path different from that of the imaging optical system and the projection optical system.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 7, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Atsuyoshi SHIMAMOTO, Keiichiro NAKAJIMA, Masashi YAMADA, Takamitsu SAKAMOTO, Mitsuru NAMIKI, Mikihiko TERASHIMA
  • Patent number: 10383642
    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.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: August 20, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Sohei Ueda, Chie Onuma, Manabu Ishikawa, Michio Takayama, Takamitsu Sakamoto, Ken Fujisaki
  • Publication number: 20190247070
    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.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Hiroyuki ARAKI, Kiichiro SAWADA, Takamitsu SAKAMOTO, Ken FUJISAKI, Hideto YOSHIMINE
  • Publication number: 20190247069
    Abstract: An ultrasonic probe can include a probe main body that receives ultrasonic vibration generated by an ultrasonic transducer and a treatment unit disposed on a distal end of the probe main body. The treatment unit can include a resection portion and a guide unit that each have a projected shape when viewed along a longitudinal axis of the ultrasonic probe. The resection portion can resect a bone that needs to be treated along a resection direction. The guide unit can protrude from the resection portion on a distal end of the treatment unit. The guide unit can also help to maintain the resection direction relative to a central axis of the hole.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Michio TAKAYAMA, Hideto YOSHIMINE
  • Publication number: 20190247079
    Abstract: Ultrasound oscillation can be propagated to a distal end of an elongated probe. A cross-sectional surface of the probe is perpendicular to the length of the probe, and has to the same shape as a shape of a cross-sectional surface of an anchor. The probe is configured to forma bottomed hole in a bone for placing the anchor and the shape of its cross-sectional surface can prevent rotation of the anchor in the bottomed hole. An area of the cross-sectional surface of the probe at the distal end can be larger than an area of a cross-sectional surface of the probe at a proximal end. The distal end of the probe includes a treatment portion that extends outward from a center of the proximal end of the probe in a first direction perpendicular to the longitudinal direction and in a second direction different from the first direction.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Takeo USUI
  • Publication number: 20190247058
    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.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Michio TAKAYAMA, Hideto YOSHIMINE, Ken YOKOYAMA, Ryo MIYASAKA
  • Publication number: 20190247081
    Abstract: An ultrasonic probe includes a treatment portion that has a through-hole or concave portions. The through-hole extends from a first outer surface to a second outer surface facing in an opposite direction to that of the first outer surface. The concave portions include a first concave portion on the first outer surface, and a second concave portion on the second outer surface. The treatment portion includes a blade formed along an edge of an opening of the through-hole or the first concave portion. An outer relay surface extends from the blade to the second outer surface and faces away from a center axis of the through-hole or the concave portions. A distance from the center axis to the blade is greater than or equal to a distance from the center axis to the outer relay surface at a position between the blade and the second outer surface.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Ken FUJISAKI, Takamitsu SAKAMOTO, Hiroyuki ARAKI, Hideto YOSHIMINE
  • Publication number: 20190015129
    Abstract: An arthroscopical surgical method including administering a fluorescent chemical agent into a joint, which is a treatment target, allowing the fluorescent chemical agent to be adsorbed by a degenerated region that has degenerated from a normal region in a cartilage inside the joint, which is the treatment target, displaying and observing an emission of fluorescence from the degenerated region, which has adsorbed the fluorescent chemical agent, by infrared excitation light on a display through an arthroscope, and allowing a surgeon to recognize the degenerated region in the cartilage inside the joint, which is the treatment target.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 17, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Takamitsu SAKAMOTO, Chie ONUMA, Ken FUJISAKI, Kiichiro SAWADA, Kazuhiro YOSHIDA, Satoshi TAKEKOSHI, Sohei UEDA, Yasuo TANIGAMI
  • Patent number: 10123816
    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.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: November 13, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Takamitsu Sakamoto, Chie Onuma, Kiichiro Sawada, Ken Fujisaki, Kazuhiro Yoshida, Satoshi Takekoshi, Sohei Ueda, Yasuo Tanigami
  • Patent number: 10098654
    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.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: October 16, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Takamitsu Sakamoto, Chie Onuma, Ken Fujisaki, Kiichiro Sawada, Kazuhiro Yoshida, Satoshi Takekoshi, Sohei Ueda, Yasuo Tanigami
  • Patent number: 10010338
    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.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 3, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Takamitsu Sakamoto, Chie Onuma, Ken Fujisaki, Kiichiro Sawada, Kazuhiro Yoshida, Satoshi Takekoshi, Sohei Ueda, Yasuo Tanigami
  • Publication number: 20180116492
    Abstract: Provided is a scanning endoscope system including: an illumination-light emitting portion that is inserted into a body of a patient and that emits illumination light emitted from a light-source portion toward an imaging subject in the body in a spot-like manner; a light scanner that scans the illumination light on the imaging subject; and a light detector that is disposed at a body surface of the patient, and that detects reflected light coming from the scanning position in the imaging subject, at which the illumination light is scanned by the light scanner.
    Type: Application
    Filed: December 19, 2017
    Publication date: May 3, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Masashi YAMADA, Atsuyoshi SHIMAMOTO, Mitsuru NAMIKI, Keiichiro NAKAJIMA, Takamitsu SAKAMOTO, Mikihiko TERASHIMA, Yoko OKABE, Yu KONDO
  • Patent number: D906521
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 29, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Ken Fujisaki, Takamitsu Sakamoto, Hiroyuki Araki, Hideto Yoshimine, Yasuyuki Matsumura, Naoyuki Suido