Patents Assigned to Olympus Medical Systems Corp.
  • Publication number: 20220249152
    Abstract: Treatment device having vibration source, transmission rod, and detachable tip is equipped with ultrasonic transducers. Ultrasonic vibrations transmitted along the transmission rod to the detachable tip cause a treatment end of the tip, such as a blade, to vibrate at ultrasonic frequencies to cut and/or seal tissues. The detachable tip is connected at a location other than the vibration node or the antinode position. The detachable tip endures increased stresses associated with this location by decreasing the mass and sectional area relative to the increasing stress levels. The detachable tip connects to the transmission rod using a transmission surface and a biasing member, such as a leaf spring, that engages a detent located in the housing at the distal end of the transmission rod. Biased contact between the transmission surface and contact surface transmits both ultrasonic vibrations and high-frequency currents to the treatment edge of the detachable tip.
    Type: Application
    Filed: January 20, 2022
    Publication date: August 11, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Yukihiko SHIMAMURA
  • Publication number: 20220241002
    Abstract: An endoscopic treatment device includes a sheath formed from a resin; a tubular hollow needle inserted into the sheath and having a sharp distal end; a rod formed from a metal and having a conduit; a shaft attached to a proximal end of the rod and having an internal space communicating with the conduit of the rod; and an operation portion including (i) a slider attached to a proximal end of the shaft, and (ii) and a lever attached to a proximal end of the hollow needle.
    Type: Application
    Filed: January 27, 2022
    Publication date: August 4, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Yusuke SHIOTA, Chika MIYAJIMA, Hiromasa KATO, Kotaro YAMADA, Tomohiro TSUJI
  • Publication number: 20220240960
    Abstract: An endoscopic treatment device includes a sheath formed from a resin; a flow-passage formation member attached to a distal end portion of the sheath to be rotatable around a longitudinal axis of the sheath; a pair of forceps pieces supported by the flow-passage formation member such that the pair of forceps pieces are able to be opened and closed; a link mechanism connected to the pair of forceps pieces and configured to open and close the pair of forceps pieces; an operation wire extending along the longitudinal axis of the sheath; and a connection member configured to connect a proximal end arm of the link mechanism and the operation wire.
    Type: Application
    Filed: January 27, 2022
    Publication date: August 4, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Yusuke SHIOTA, Chika MIYAJIMA, Hiromasa KATO, Kotaro YAMADA, Tomohiro TSUJI
  • Publication number: 20220240973
    Abstract: A treatment device having a vibration source, a transmission rod, treatment blade, and a jaw piece attached to a movable handle is disclosed. The treatment device is equipped with ultrasonic transducers which includes piezoelectric elements converting electrical power into ultrasonic vibrations. The ultrasonic vibrations are transmitted along the transmission members to the treatment blade that vibrates at ultrasonic frequencies to cut and/or seal tissues. The jaw piece is connected to the movable handle and open and closes with the movement of the movable handle. The treatment device is also equipped with an extension protruding from the operation body that allows the operator to operate the device and the movable handle at ease, even when the device is operated at different angles.
    Type: Application
    Filed: November 16, 2021
    Publication date: August 4, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Akira MIYAZAKI
  • Publication number: 20220240934
    Abstract: A method for closing a wound in a mucosal layer of an organ wall of a patient includes threading a suture thread into the mucosal layer at a first position located on a first side of the wound, threading the suture thread at least once into a muscle layer of the organ wall, and threading the suture thread into the mucosal layer at a second position located on a second side of the wound that is opposite the first side of the wound. A method for resecting a lesion in a wall of an organ of a patient includes creating a wound in a mucosal layer of the wall of the organ by excising the lesion from the wall of the organ, and threading a suture thread through a series passes between the mucosal layer on a first side of the wound and the mucosal layer on a second side of the wound, the suture thread being threaded into a muscle layer of the wall of the organ in at least one pass of the series passes.
    Type: Application
    Filed: December 22, 2021
    Publication date: August 4, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Keita OZAWA, Kunihide KAJI
  • Publication number: 20220241006
    Abstract: A treatment device equipped with high frequency capability has a pair of clasping jaws. The upper and lower jaws are openable-closable and serves as high frequency electrodes to clamp and seal and/or transect tissue. A blade traverses a channel in the upper and lower jaws and is used to open and close the upper and lower jaws. Additional structures and mechanisms contribute to the operation of the upper and lower jaws and add strength to the opening of the clasping jaws, which is useful in the procedure of peeling tissues using the opening movement of the clasping jaws.
    Type: Application
    Filed: December 6, 2021
    Publication date: August 4, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Akira MIYAZAKI, Ryu ONUMA, Ojiro KITAMURA
  • Publication number: 20220233198
    Abstract: A clip device includes a clip, including a plurality of arms having sliding grooves; and an intermediate member inserted into the sliding grooves for connecting the plurality of arms; a pressing tube accommodating a proximal end portion of the clip; a connection member connecting with an operation wire at a proximal end side and including an engaging portion engaging with the intermediate member; and a locking mechanism for lock the plurality of arms when the clip is pulled toward the proximal end side by a predetermined distance by the connection member, wherein the clip includes a contact portion formed on a side surface of the arm to be in contact with the engaging portion from a direction orthogonal to an axial direction of the intermediate portion for preventing a deformation of the engaging portion when the intermediate portion slides along the sliding groove before the plurality of arms are locked.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 28, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Toshihiro YOSHII, Naoki TAKIZAWA
  • Publication number: 20220233190
    Abstract: A method for resecting a lesion in a wall of an organ of a patient includes injecting a fluid into the wall of the organ at a location proximate to the lesion, creating a wound in the wall of the organ by cutting the lesion from the wall of the luminal organ, removing at least a portion of the fluid injected into the wall of the organ, and closing the wound using a suture thread. The portion of fluid may be removed prior to or after partially threading the suture thread into the wall of the organ.
    Type: Application
    Filed: December 22, 2021
    Publication date: July 28, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Keita OZAWA, Kunihide KAJI, Hiroyuki MORISHITA
  • Publication number: 20220233197
    Abstract: A clip device includes a tube and a clip having a first arm portion and a second arm portion, and an engagement mechanism including a stepped connector and a hooking structure, and configured to connect to the clip. The stepped connector includes an engaging region connecting two side regions, a width of the engaging region of the stepped connector is smaller than a width of a first of the two side regions of the stepped connector. The hooking structure includes two lateral surfaces connected by a hook surface, and a surface of the engaging region of the stepped connector engages with the hook surface of the hooking structure and each of the two side regions of the stepped connector are adjacent to respective one of the two lateral surfaces of the hooking structure.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 28, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Naoki TAKIZAWA, Motoi SATAKE
  • Publication number: 20220202412
    Abstract: A method for closing a wound in a tubular organ using a suture thread introduced into the tubular organ, includes: inflating the tubular organ by supplying gas into the tubular organ; resecting a lesion while the tubular organ is inflated, so that the wound is formed; deflating the tubular organ by discharging gas from the tubular organ; passing the suture thread through a tissue around the wound; and gathering the tissue around the wound by pulling the suture thread passing through the tissue while the tubular organ is deflated.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 30, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Keita OZAWA, Kunihide KAJI, Hiroyuki MORISHITA
  • Publication number: 20220176089
    Abstract: A method of forming an access route to the bile duct includes: forming a tunnel extending from an oral ridge of a duodenal papilla, which is located on an oral side of a natural opening of a duodenal papilla, to the bile duct; and dilating a lumen of the tunnel more than when it was formed.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Applicants: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Hiroyuki ISAYAMA
  • Publication number: 20220125478
    Abstract: In a method of forming an access route to the bile duct, a needle is introduced into a duodenum, and the introduced needle is pierced into an oral side projection of a duodenal papilla, which is located at an oral position than an opening of the duodenal papilla. The tip of the pierced needle is made to reach the inside of the bile duct to form a tunnel communicating the duodenum and the bile duct, and a treatment device is inserted into the formed tunnel.
    Type: Application
    Filed: October 27, 2020
    Publication date: April 28, 2022
    Applicants: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hiroyuki ISAYAMA, Tomohiko MAMIYA, Yutaka YANUMA
  • 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: 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: 20220087695
    Abstract: A guidewire holding device comprises a sheath including a lumen, a holder disposed at a distal end of the sheath and configured to be switchable between holding a guidewire and releasing the guidewire, a treatment tool inserted in the lumen to perform an intended treatment, and a wire connected to the treatment tool and configured to move the treatment tool between a first configuration and a second configuration. In the first configuration, the treatment tool is contained insider the lumen, and, in the second configuration, the treatment tool is protruded from the distal end of the sheath.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 24, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Takahiro SUZUKI, Tomofumi KATAYAMA, Yutaka YANUMA
  • Publication number: 20160045245
    Abstract: An ablation method according to the present invention includes: a step I of observing a target region in a tissue of a subject and a conservation region that should not be ablated, the conservation region being adjacent to the ablation target region, using an observation unit; a step II of placing a thermal monitoring instrument that deforms if a temperature thereof exceeds a predetermined temperature, in a boundary between the ablation target region and the conservation region under the observation using the observation unit; a step III of heating the ablation target region using an ablation instrument while observing the ablation target region using the observation unit; and a step IV of stopping the heating at a stage where deformation of the thermal monitoring instrument is confirmed.
    Type: Application
    Filed: August 14, 2014
    Publication date: February 18, 2016
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Shoichi MATSUI, Kenichi NISHINA
  • Patent number: 9198716
    Abstract: A grasping treatment device includes a first electrode portion functioning as an electrode when a high-frequency current is transmitted thereto through a probe unit, and a second electrode portion functioning as an electrode when a high-frequency current is transmitted thereto through a sheath unit. The grasping treatment device includes an inter-electrode distance changing unit changing an inter-electrode distance so that a second distance between the electrode portions in a second treatment mode, in which the high-frequency current alone is transmitted to the two electrode portions, is smaller than a first distance between the electrode portions in a first treatment mode, in which at least an ultrasonic vibration is transmitted to a probe electric conducting portion.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 1, 2015
    Assignee: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Shinya Masuda, Ryu Onuma, Genri Inagaki
  • Publication number: 20150327916
    Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Yoshitaka Honda, Kazue Tanaka, Takashi Irisawa, Sadayoshi Takami
  • Patent number: 9155586
    Abstract: A treatment tool for endoscope includes a pair of forceps members supported so as to be relatively movable by a rotation shaft, an operation section for performing opening/close operations of the forceps members, and an operation wire for connecting the forceps members to the operation section, wherein the operation section has an operation section main body, a first operation member to which the operation wire is connected and which is slideably attached to the operation section main body, a second operation member which is slideably attached to the first operation member, a force adjustment member which is attached to the second operation member and is compressed by the second operation member is slid to the first operation member.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 13, 2015
    Assignee: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Keita Suzuki
  • Patent number: 9149174
    Abstract: Using a transmittance adjusting device decreasing a transmittance of at least from 460 nm to 500 nm, which is a wavelength range between a point of end of a first optical absorption peak of hemoglobin and a point of start of a second optical absorption peak of hemoglobin, to between 20% and 70% for illuminating light from an illuminating light supply section or reflected light from an object, during observation of the inside of a body cavity, enhanced display of vessels with color reproduction that has no difference from that in observation under visible light, enabling color reproduction similar to that in observation under visible light and further enhanced display of vessels.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 6, 2015
    Assignee: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Ryo Machida, Takeshi Suga, Masahiro Kawauchi