Patents by Inventor Masaru YUASA

Masaru YUASA 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: 20250049309
    Abstract: A treatment device includes a flexible sheath; a wire configured to be inserted into the sheath; a first treatment member disposed at distal side from the wire; a second treatment member disposed at a distal side from the first treatment member; and a protection member configured to cover the second treatment member when the first treatment member projects from a distal end of the sheath.
    Type: Application
    Filed: October 28, 2024
    Publication date: February 13, 2025
    Applicant: OLYMPUS CORPORATION
    Inventors: Masaru YUASA, Yoshisane NAKAMURA, Lon B. MILLER, Yung N. NGUYEN, Vincen V. VANG, Yohei YOSHIDA
  • Patent number: 12213672
    Abstract: A clip device includes a sheath having a lumen with at least one open end and a plurality of clip arms movable between a first configuration in which the plurality of clip arms are opened to receive a target tissue, and a second configuration in which the plurality of clip arms are closed to grip the target tissue. Locking mechanisms respectively provided on the plurality of clip arms engage one another for maintaining the second configuration. A restraining mechanism is optionally configured to be associated with the locking mechanisms to prevent the target tissue from being pinched between the locking mechanisms.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: February 4, 2025
    Assignee: Olympus Medical Systems Corp.
    Inventors: Masaru Yuasa, Yoshitsugu Uekusa, Shinya Ansai, Takushi Haramaki, Shogo Shindo
  • Publication number: 20250000499
    Abstract: A clip device can include a clip including a pair of clip arms, a capsule including a channel, the channel slidably inserted into a proximal end of each clip arm of the pair of clip arms, and a coupler attached onto the proximal end of the capsule. The coupler includes a pair of deployment arms and a pair of retention arms. The pair of retention arms are configured to engage with a corresponding portion of an applicator. Wherein a first length of the coupler in a first direction is longer than a second length of the coupler in a second direction in a cross-section. The cross-section crosses the pair of retention arms and the pair of deployment arms and is perpendicular to a longitudinal direction of the coupler.
    Type: Application
    Filed: June 28, 2024
    Publication date: January 2, 2025
    Inventors: Ryu YORITA, Toshinori TAMURA, Jun SHIRAI, Naoki TAKIZAWA, Shogo Shindo, Kensuke Uesaka, Masaru Yuasa
  • Publication number: 20240407788
    Abstract: A clip for gripping tissue can having a first arm with a first claw at a distal end of the first arm, and second arm, with a second claw at a distal end of the second arm, in which the first arm and second arm are configured to move in a direction toward each other to close the clip. The clips include one or more anchors on the arms of the clip which protrude in a direction other than the direction that the first arm and second arm are configured to move toward each other to close the clip. Such anchors can more readily attach to tissue of a patient upon contact than clips without an anchor.
    Type: Application
    Filed: August 21, 2024
    Publication date: December 12, 2024
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Yoshitsugu UEKUSA, Tatsunori TSUNETO, Shinya ANSAI, Shogo SHINDO
  • Patent number: 12161297
    Abstract: A treatment device includes a flexible sheath; a wire configured to be inserted into the sheath; a first treatment member disposed at distal side from the wire; a second treatment member disposed at a distal side from the first treatment member; and a protection member configured to cover the second treatment member when the first treatment member projects from a distal end of the sheath.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: December 10, 2024
    Assignee: OLYMPUS CORPORATION
    Inventors: Masaru Yuasa, Yoshisane Nakamura, Lon B. Miller, Yung N. Nguyen, Vincen V. Vang, Yohei Yoshida
  • Patent number: 12114865
    Abstract: A clip for gripping tissue can having a first arm with a first claw at a distal end of the first arm, and second arm, with a second claw at a distal end of the second arm, in which the first arm and second arm are configured to move in a direction toward each other to close the clip. The clips include one or more anchors on the arms of the clip which protrude in a direction other than the direction that the first arm and second arm are configured to move toward each other to close the clip. Such anchors can more readily attach to tissue of a patient upon contact than clips without an anchor.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: October 15, 2024
    Assignee: Olympus Medical Systems Corp.
    Inventors: Masaru Yuasa, Yoshitsugu Uekusa, Tatsunori Tsuneto, Shinya Ansai, Shogo Shindo
  • Publication number: 20240148389
    Abstract: A clip device for gripping biological tissue of a patient includes a clip having a first arm and second arm closeable by operation of a wire that is reciprocally moveable in a longitudinal channel of a sheath; and a bendable member at a distal end region of the sheath. The bendable member can be an integral portion of the sheath or a separate structure. The bendable member is configured to allow a distal end of a clip to rotate or swing toward a proximal end region of the sheath of the device, which orients the clip relative to the sheath to facilitate grasping of tissue even when the approach of the clip is tangential to the tissue, e.g., at an angle (?) less than 90. The bendable member can be configured to allow a distal end of a clip to rotate or swing toward a proximal end region of a sheath and form an angle of up to at least about 45 degrees, such up to about 60 degrees or up to about 90 degrees, or higher.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Tatsunori TSUNETO, Shinya ANSAI, Takushi HARAMAKI, Shogo SHINDO
  • Patent number: 11931043
    Abstract: A clip device for gripping biological tissue of a patient includes a clip having a first arm and second arm closeable by operation of a wire that is reciprocally moveable in a longitudinal channel of a sheath; and a bendable member at a distal end region of the sheath. The bendable member can be an integral portion of the sheath or a separate structure. The bendable member is configured to allow a distal end of a clip to rotate or swing toward a proximal end region of the sheath of the device, which orients the clip relative to the sheath to facilitate grasping of tissue even when the approach of the clip is tangential to the tissue, e.g., at an angle (?) less than 90. The bendable member can be configured to allow a distal end of a clip to rotate or swing toward a proximal end region of a sheath and form an angle of up to at least about 45 degrees, such up to about 60 degrees or up to about 90 degrees, or higher.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: March 19, 2024
    Assignee: Olympus Medical Systems Corp.
    Inventors: Masaru Yuasa, Tatsunori Tsuneto, Shinya Ansai, Takushi Haramaki, Shogo Shindo
  • Publication number: 20230277193
    Abstract: A tissue closure method comprises grasping a first portion of a tissue between a first arm and a central arm, restricting a sliding of a first slider while grasping the first portion, the first slider configured to open and close the first arm relative to the central arm, grasping a second portion of the tissue between a second arm and the central arm while restricting the sliding of the first slider, indwelling the first arm, the second arm, and the central arm in a body.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 7, 2023
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Motoi SATAKE, Toshinori TAMURA, Shogo SHINDO
  • Publication number: 20230263533
    Abstract: A multi-arm clip comprising: a central arm; a pair of outer arms configured to rotatably connect to the central arm; a slide pin configured to move along a longitudinal axis direction of the central arm to open or close the pair of outer arms using an outer arm slot defined by the pair of outer arms; a retention feature provided on either the central arm or each one of the pair of the outer arms, the retention feature configured to maintain a gripping force between the central arm and the pair of outer arms in an adjustable manner; and a force transmitter configured to move the slide pin along the longitudinal axis direction; wherein the pair of outer arms includes an outer arm slot, the outer arm slot configured to make the slide pin movable.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 24, 2023
    Inventors: Shogo Shindo, Motoi Satake, Masaru Yuasa
  • Publication number: 20230225742
    Abstract: The present invention provides a clip system that is optimal for suture treatment of living tissue. The clip system includes a clip unit having a first arm and a second arm capable of opening and closing, a wire capable of opening and closing the clip, and a sheath through which the wire can be inserted. The clip unit includes a support portion that swingably supports the first arm and the second arm.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 20, 2023
    Inventors: Masaru Yuasa, Rintaro Haraguchi, Shogo Shindo, Yuki Tanaka, Naoki Takizawa, Mayo Kamagata, Kyosuke Sato, Yasuo Funakoshi, Kensuke Uesaka, Shoichiro Kawayoke
  • Publication number: 20230149017
    Abstract: An endoscopic suturing method includes penetrating an indwelling member into a first portion of a mucous membrane, moving the indwelling member toward a second portion of the mucous membrane while pushing the first portion of the mucous membrane and penetrating the indwelling member into the second portion of the mucous membrane with the indwelling member penetrated into the first portion of the mucous membrane, and leaving the indwelling member in a body in a state in which the indwelling member penetrates the first portion of the mucous membrane and the second portion of the mucous membrane.
    Type: Application
    Filed: November 15, 2022
    Publication date: May 18, 2023
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Masato TAMAI, Shogo SHINDO
  • Patent number: 11622765
    Abstract: A tissue clipping device and system, and method for clipping tissue are disclosed. The tissue clipping device includes a clip with clip arms that is slidably disposed within a channel of a lock tube. The clip is designed to move between an open configuration in which distal ends of the clip arms are separated from each other for receiving tissue therebetween, and a closed configuration in which the distal ends of the clip arms are closer to each other than in the open configuration for clipping the tissue received therebetween. The tissue clipping system further includes a delivery device for delivering and deploying the tissue clipping device. The delivery device is releasably coupled to the tissue clipping device.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 11, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Masaru Yuasa, Yoshisane Nakamura, David Andrew Desmarais, Adam L Smith, Amanda Kay Woodcock, Donald C. Baumgarten
  • Patent number: 11576647
    Abstract: An apparatus for insertion into a body through a working channel of an endoscope includes a catheter including a dilator, a guide tube disposed in a lumen of the catheter, and a handle including a puncturing actuator operatively coupled to the proximal end of the guide tube. The dilator may be a cautery device and/or a balloon. The apparatus may also include a stylet needle that includes a cutting distal end for puncturing tissue and extends through a lumen in the guide tube. The handle may further include a stopper detachably coupled to the puncturing actuator to fix a position of the puncturing actuator on the handle, and moveable on the handle independently of the puncturing actuator when detached from the puncturing actuator. The disclosed embodiments also include a method for forming a passageway in a wall of a hollow body organ using the apparatus.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: February 14, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Masaru Yuasa, Yoshisane Nakamura, Robert H. Hawes, Emer M Feerick, Damian Muldoon, Rory O'Brien
  • Publication number: 20220265274
    Abstract: A clip device includes a sheath having a lumen with at least one open end and a plurality of clip arms movable between a first configuration in which the plurality of clip arms are opened to receive a target tissue, and a second configuration in which the plurality of clip arms are closed to grip the target tissue. Locking mechanisms respectively provided on the plurality of clip arms engage one another for maintaining the second configuration. A restraining mechanism is optionally configured to be associated with the locking mechanisms to prevent the target tissue from being pinched between the locking mechanisms.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 25, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Yoshitsugu UEKUSA, Shinya ANSAI, Takushi HARAMAKI, Shogo SHINDO
  • Publication number: 20220117604
    Abstract: A clip for gripping tissue can having a first arm with a first claw at a distal end of the first arm, and second arm, with a second claw at a distal end of the second arm, in which the first arm and second arm are configured to move in a direction toward each other to close the clip. The clips include one or more anchors on the arms of the clip which protrude in a direction other than the direction that the first arm and second arm are configured to move toward each other to close the clip. Such anchors can more readily attach to tissue of a patient upon contact than clips without an anchor.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 21, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Yoshitsugu UEKUSA, Tatsunori TSUNETO, Shinya ANSAI, Shogo SHINDO
  • Publication number: 20220117605
    Abstract: A clip device for gripping biological tissue of a patient includes a clip having a first arm and second arm closeable by operation of a wire that is reciprocally moveable in a longitudinal channel of a sheath; and a bendable member at a distal end region of the sheath. The bendable member can be an integral portion of the sheath or a separate structure. The bendable member is configured to allow a distal end of a clip to rotate or swing toward a proximal end region of the sheath of the device, which orients the clip relative to the sheath to facilitate grasping of tissue even when the approach of the clip is tangential to the tissue, e.g., at an angle (?) less than 90. The bendable member can be configured to allow a distal end of a clip to rotate or swing toward a proximal end region of a sheath and form an angle of up to at least about 45 degrees, such up to about 60 degrees or up to about 90 degrees, or higher.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 21, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masaru YUASA, Tatsunori TSUNETO, Shinya ANSAI, Takushi HARAMAKI, Shogo SHINDO
  • Publication number: 20220015615
    Abstract: A treatment device includes a flexible sheath; a wire configured to be inserted into the sheath; a first treatment member disposed at distal side from the wire; a second treatment member disposed at a distal side from the first treatment member; and a protection member configured to cover the second treatment member when the first treatment member projects from a distal end of the sheath.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 20, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Masaru YUASA, Yoshisane NAKAMURA, Lon B. MILLER, Yung N. NGUYEN, Vincen V. VANG, Yohei YOSHIDA
  • Patent number: 10980402
    Abstract: A treatment device includes a flexible sheath; a control wire that can move axially within the flexible sheath; a first treatment member connected to a distal end of the control wire; a second treatment member connected to a distal end of the first treatment member; and a protection member that covers the second treatment member depending on the mode of operation. When the treatment device is in a first treatment mode, the second treatment member projects from a distal end of the protection member. When the treatment device is in a second treatment mode, the first treatment member projects from the distal end of the flexible sheath, and the protection member covers the second treatment member.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 20, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Masaru Yuasa, Yoshisane Nakamura, Lon B. Miller, Yung N. Nguyen, Vincen V. Vang, Yohei Yoshida
  • Publication number: 20210093288
    Abstract: An apparatus for insertion into a body through a working channel of an endoscope includes a catheter including a dilator, a guide tube disposed in a lumen of the catheter, and a handle including a puncturing actuator operatively coupled to the proximal end of the guide tube. The dilator may be a cautery device and/or a balloon. The apparatus may also include a stylet needle that includes a cutting distal end for puncturing tissue and extends through a lumen in the guide tube. The handle may further include a stopper detachably coupled to the puncturing actuator to fix a position of the puncturing actuator on the handle, and moveable on the handle independently of the puncturing actuator when detached from the puncturing actuator. The disclosed embodiments also include a method for forming a passageway in a wall of a hollow body organ using the apparatus.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 1, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Masaru YUASA, Yoshisane NAKAMURA, Robert H. HAWES, Emer M Feerick, Damian Muldoon, Rory O'Brien