Patents by Inventor Yoichiro KUWANO

Yoichiro KUWANO 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: 20240325136
    Abstract: An operation device configured to be joined with a proximal portion of a treatment device having a lumen through which a wire extending from an indwelling unit indwelling in a living body lumen to the outside of the body, and includes: a housing including a joining portion to which the treatment device can be joined; and an action unit that is disposed on the proximal side of the joining portion, and the action unit is brought into contact with the wire extending from the treatment device, to apply, to the wire, a moving force for the wire to move in the longitudinal axis direction.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kazuaki KANAMOTO, Yoshiki MISHIMA, Yoichiro Kuwano
  • Publication number: 20240285916
    Abstract: A control device configured to control a pressurization and decompression operation of a pump configured to inflate and deflate a balloon by pressurizing and decompressing the balloon attached to a distal portion of a catheter through the catheter inserted into a luminal organ of a patient includes a control unit configured to acquire image data obtained by imaging the luminal organ at least while the pump is caused to perform a pressurization operation, determine whether air bubbles are mixed in an expansion medium injected into the balloon in the pressurization operation with reference to the acquired image data, and when it is determined that the air bubbles are mixed, cause the pump to perform a decompression operation before a preset decompression timing.
    Type: Application
    Filed: February 7, 2024
    Publication date: August 29, 2024
    Applicant: Terumo Kabushiki Kaisha
    Inventors: Takumi FUKUDA, Yoichiro KUWANO, Kohei KANAYA
  • Publication number: 20240285915
    Abstract: An indeflation system includes a control unit configured to control an operation of a pump configured to pressurize or depressurize an inside of a catheter at a distal portion of which a balloon is provided, in which the control unit acquires a medical image of the balloon provided at the distal portion of the catheter inserted into a lumen, the balloon pressurized by the pump, detects presence or absence of an abnormality of the balloon on the basis of the medical image of the pressurized balloon, and controls the pump so as to depressurize the balloon in a case where the abnormality of the balloon is detected.
    Type: Application
    Filed: February 14, 2024
    Publication date: August 29, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kazuki NAKASONE, Kohei KANAYA, Takumi FUKUDA, Yoichiro KUWANO
  • Publication number: 20240139435
    Abstract: A vascular puncture assist device includes a property acquisition unit that acquires a property of a blood vessel; and a control unit that detects a state of hardness of a blood vessel from the property of the blood vessel acquired by the property acquisition unit, and determines availability of puncture and a puncture position or direction based on the detected state of hardness of the blood vessel. The vascular puncture assist device further includes a probe including an imaging unit that acquires a cross-sectional image of a human body, and the control unit detects a state of calcification of a blood vessel from the acquired cross-sectional image using the imaging unit as a property acquisition unit.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takito INUKAI, Yoichiro KUWANO, Takumi FUKUDA
  • Publication number: 20240139412
    Abstract: A vascular puncture device is a vascular puncture device that punctures a blood vessel using an inner needle having a sharp needle tip, a flexible outer tube covering the inner needle, a drive unit moving the inner needle and the outer tube, and an imaging unit capable of acquiring a cross-sectional image of a human body in contact with a skin surface and visualizing a distal end of the inner needle, and includes a control unit controlling movement of the drive unit. The control unit calculates one or more of a movement distance and a puncture angle of the drive unit based on a separation distance between the distal end of the inner needle and a distal end of the outer tube, and moves the drive unit to set the drive unit at one or more of the calculated movement distance and the calculated puncture angle.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: TERUMOKABUSHIKI KAISHA
    Inventors: Takito INUKAI, Takumi FUKUDA, Yoichiro KUWANO
  • Publication number: 20240138806
    Abstract: A vascular puncture device is a vascular puncture device that punctures a blood vessel using an imaging unit that comes into contact with a skin surface and acquires a cross-sectional image of a human body, a puncture unit including a sharp needle tip, and a drive unit moving the puncture unit, and includes a control unit that can receive information on the cross-sectional image and control an operation of the drive unit. The control unit identifies at least one blood vessel from the information on the cross-sectional image, determines whether the blood vessel is an artery or a vein from the information on the cross-sectional image of the identified blood vessel, sets a blood vessel to be punctured from among a plurality of the identified blood vessels, and controls the drive unit to move the puncture unit to puncture the blood vessel set to be punctured with the puncture unit.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takito INUKAI, Takumi FUKUDA, Yoichiro KUWANO
  • Publication number: 20240139434
    Abstract: A vascular puncture device punctures a blood vessel using an imaging unit that comes into contact with a skin surface and acquires a cross-sectional image of a human body, an inner needle including a sharp needle tip, a flexible outer tube covering the inner needle, a drive unit moving the inner needle and the outer tube, and a detection unit detecting puncture of the needle tip with respect to a blood vessel back wall, and includes a control unit capable of receiving information on the cross-sectional image, controlling an operation of the drive unit, and receiving a detection result from the detection unit. The control unit controls the drive unit to move the inner needle and the outer tube to puncture the blood vessel with the inner needle, and controls the drive unit to stop the puncture with the inner needle.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Applicant: Terumo Kabushiki Kaisha
    Inventors: Takumi FUKUDA, Takito INUKAI, Yoichiro KUWANO, Yoshinobu ISAKA
  • Publication number: 20240108378
    Abstract: A medical device includes: an elongated shaft portion that includes a drive shaft which is rotatable and a fluid lumen; and a cutter that cuts an object, the cutter being fixed to a distal end of the drive shaft and including a lumen communicating with the fluid lumen and a distal end opening communicating with the lumen, wherein the cutter has at least one guide portion that is a groove and/or a slit on an outer peripheral surface, and the guide portion extends in a direction opposite to a rotation direction in a distal direction.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 4, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20240091500
    Abstract: A catheter for removing an object in a body lumen includes an outer tube, a shaft surrounded by the tube, a cutting member connected to the shaft to be rotated with respect to a rotation axis, a guide wire tube attached to the outer tube and having a first lumen for a guide wire and second lumens, a metal member attached to the wire tube, a part of the metal member surrounded by the member, a distal tip attached to the wire tube and having a third lumen communicating with the first lumen, and a pusher extending along the shaft, connectable to the distal tip or the metal member, and including wires that can pass through the second lumens. The pusher causes the cutting member to move toward a first surface of the body lumen when contacting an opposite second surface of the body lumen.
    Type: Application
    Filed: September 30, 2022
    Publication date: March 21, 2024
    Inventors: Yuichi TADA, Yoichiro KUWANO, John BARRITT, Mike FOSTER
  • Publication number: 20230380802
    Abstract: Provided is a vascular puncture device including a support table that is capable of supporting a main body including an imaging unit that is capable of coming into contact with a skin surface of an arm of a human body and acquiring a cross-sectional image of the arm, a drive unit that moves a puncture needle, and a control unit that is capable of controlling a movement of the drive unit, the support table including a holding unit capable of holding the arm, in which the support table is capable of supporting the main body and being separated from the main body.
    Type: Application
    Filed: May 30, 2023
    Publication date: November 30, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takito INUKAI, Takumi FUKUDA, Masashi USAMI, Yoichiro KUWANO
  • Publication number: 20230290496
    Abstract: A medical system for removing an object in a body cavity, includes a display, and a controller connectable to a drive device configured to control a medical device operated by an operator to remove the object. The controller is configured to acquire device information indicating features of different types of first devices connectable to the medical device, acquire target information indicating characteristics of a target object to be removed, rank the first devices for removing the target object using the device information and the target information, and display on the display a list of the first devices according to the rank thereof.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 14, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230277211
    Abstract: A medical system includes a device for removing an object in a body cavity, the device including a shaft portion including a rotatable drive shaft and a lumen, a motor configured to rotate the drive shaft, a cutter attached to a distal end of the drive shaft and configured to cut the object when the drive shaft is rotated by the motor, and a pump operable according to one or more parameters to create a vacuum in the lumen to transport the cut object through the lumen. The system further includes one or more sensors each configured to detect a physical quantity related to the cut object transported through the lumen, and a controller configured to determine the parameters based on the physical quantity detected by each of the sensors, and control the pump to create the vacuum in the lumen according to the determined parameters.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 7, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230277173
    Abstract: A medical system includes a device for removing an object in a body cavity, the device including a shaft portion including a rotatable drive shaft, a motor configured to rotate the drive shaft, and a cutter attached to a distal end of the drive shaft and configured to perform a cutting operation on the object when the drive shaft is rotated by the motor. The medical system further includes one or more sensors each configured to detect a physical quantity related to the cutting operation, and a controller configured to determine one or more cutting parameters for the cutting operation based on the physical quantity detected by each of the sensors, and control the motor to rotate the drive shaft according to the determined cutting parameters.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230277144
    Abstract: A medical system includes a device including a drive shaft, a cutter for cutting an object within a cutting range, a tube surrounding the shaft and including a contrast marker, and rollers for rotating and moving the pipe, a memory storing information including cross-sectional images of the cavity, an imaging device capturing images of the marker, and a controller determining, based on the information, a target position of the cutter and a target orientation of the marker in an image to be captured when the object is within the range, determining a current position of the cutter based on a captured image and moving the pipe such that the cutter reaches the target position, and determining an orientation of the marker in a captured image and rotating the pipe such that the marker in the image has the target orientation.
    Type: Application
    Filed: February 15, 2023
    Publication date: September 7, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230240708
    Abstract: A medical device control apparatus for controlling a medical device configured to remove an object in a body cavity with a cutter that is rotatable via a rotatable drive shaft, includes a first motor configured to rotate the drive shaft, one or more sensors configured to detect a state of the first motor, and a controller configured to control the first motor to rotate the drive shaft based on the state of the first motor detected by the one or more sensors.
    Type: Application
    Filed: January 26, 2023
    Publication date: August 3, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230240709
    Abstract: A medical device for removing an object in a body cavity, includes a rotatable drive shaft, a cutter attached to a distal end portion of the drive shaft and by which the object is cut, and one or more first sensors disposed on a distal side of the cutter, wherein each of the first sensors is configured to detect contact with the object or a biological tissue and output a signal indicating whether the first sensor is contacting the object or the biological tissue.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 3, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230200842
    Abstract: A medical device for removing an object in a body cavity, includes a rotatable drive shaft, a cutter attached to a distal end of the drive shaft and by which the object is cut, a guide wire including one or more markers, a guide tube disposed at a distal portion of the drive shaft and including a lumen through which the guide wire can pass and a sensor configured to detect the one or more markers, and a controller configured to control an operation state of the cutter to be an operation disabled state in which the cutter cannot operate and an operation enabled state in which the cutter can operate, and to switch between the operation disabled state and the operation enabled state according to the one or more markers detected by the sensor.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 29, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230200648
    Abstract: A system for monitoring a health status of a person remotely from a medical facility, includes a display device to be installed in the medical facility, a wireless sensor device attachable to a leg of the person to acquire measurement information on a state of the leg of the person, and a compute server in wireless communication with the sensor device to acquire the measurement information. The compute server is configured to determine a risk of an arterial disease and a venous disease of the leg based on the acquired measurement information, and output, to the display device, information on the determined risk of the arterial disease and the venous disease of the leg.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 29, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230200843
    Abstract: A medical device for removing an object in a body cavity, includes a first device including a rotatable drive shaft and a cutter attached to a distal end of the drive shaft and by which the object is cut, a second device movable with respect to the drive shaft along a longitudinal direction of the drive shaft and including a distal-side blood pressure sensor at a distal portion of the second device and a proximal-side blood pressure sensor on a proximal side of the distal-side blood pressure sensor, and a controller configured to acquire a first measurement value from the distal-side blood pressure sensor and a second measurement value from the proximal-side blood pressure sensor, calculate a fractional flow reserve using the first and second measurement values, and control the cutter to cut the object in accordance with the calculated fractional flow reserve.
    Type: Application
    Filed: December 14, 2022
    Publication date: June 29, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO
  • Publication number: 20230200726
    Abstract: A system for monitoring a health status of a person, includes a mobile terminal configured to display the status and in wireless communication with a first sensor attached to one leg of the person to acquire first information relating to a state of the one leg, and a second sensor attached to a part of a body of the person other than said one leg to acquire second information relating to a state of the part, and a server in communication with the terminal to acquire the first and second information from the sensors. The server is configured to compare the first and second information and determine a blood vessel state of said one leg based on its difference, and transmit to the terminal information indicating the blood vessel state. The mobile terminal is configured to update the status based on the information.
    Type: Application
    Filed: October 11, 2022
    Publication date: June 29, 2023
    Inventors: Yuichi TADA, Yoichiro KUWANO