Patents Assigned to Terumo Kabushiki Kaisha
  • Syringe barrel and pre-filled syringe
    Patent number: 11666706
    Abstract: A syringe barrel includes: a hollow body portion that is configured such that a gasket is slidably insertable therein. The syringe barrel is made of a resin that has a total light transmittance of 80% or more. A scale is disposed at an inner circumferential surface or an outer circumferential surface of the body portion, the scale being visible from an outside of the syringe barrel and being configured to indicate a liquid amount. The scale is formed by (i) a stepped structure having a step height in a range of 0.001 to 0.15 mm in a radial direction, and/or (ii) an embossment.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: June 6, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuyuki Takeuchi, Eiji Yagishita, Nobukazu Akaike
  • Syringe and prefilled syringe
    Patent number: 11660402
    Abstract: In a syringe, which is a prefilled syringe, when a cap body is attached to a cylindrical portion, a first sealing section is compressed radially inward by an inner peripheral surface constituting an opening of the cylindrical portion, thereby sealing a distal end section of a flow path in a liquid-tight manner, and a second sealing section is compressed radially inward by an inner peripheral surface of a proximal end section of the cylindrical portion, thereby sealing a proximal end section of the flow path in a liquid-tight manner.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 30, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Hitoshi Okihara
  • Drug coating layer and method for forming same
    Patent number: 11660429
    Abstract: A drug coating layer that prevents breakage of elongated drug crystals on a balloon surface while maintaining the drug crystals in an appropriate shape to act on the living body includes plural elongated bodies which are crystals of a water-insoluble drug each extending from the surface of the balloon at various lengths and angles, and a water-soluble additive layer provided in a space between an outer surface of an aggregate of the elongated bodies and the balloon surface to fill a space between the elongated bodies. The outer surface of the additive layer being located outside the aggregate, being uneven connecting a plurality of tip ends and side surfaces of the elongated bodies to each other. The tip ends of the elongated bodies slightly protrude from the additive layer, and the side surfaces and/or tip surfaces of the elongated body are exposed on the surface of the additive layer.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 30, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yasuo Kurosaki, Yu Osawa
  • METHOD FOR PREDICTING FORMATION OF THROMBUS OR RISK OF THROMBUS FORMATION IN MEDICAL DEVICE PERFORMING BLOOD CIRCULATION BY PUMP
    Publication number: 20230160896
    Abstract: Provided is a means capable of predicting a formation of thrombus or a risk thereof in a medical device performing blood circulation by a pump, by a simple and minimally invasive method. A method for predicting a formation of thrombus or a risk thereof in a medical device performing blood circulation by a pump, wherein it is predicted that thrombus is formed or there is a risk thereof in the medical device when a concentration or expression amount of ADAM28 in a body fluid sample collected from a subject wearing the medical device is elevated compared with a reference value.
    Type: Application
    Filed: March 2, 2021
    Publication date: May 25, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Ichiro HIRAHARA, Shinpei FURUKAWA, Koko KUMANO, Hideki SATO
  • Method, composition, and chip for detecting analyte in blood sample
    Patent number: 11656182
    Abstract: A composition for detecting an analyte in a blood sample includes: a coloring reagent; an oxidoreductase; and a refractive index adjuster.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: May 23, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Takeyuki Moriuchi, Yusuke Komata, Fumihiko Chai
  • Extracorporeal circulation management device with blood level detection in a reservoir without a sensor
    Patent number: 11654223
    Abstract: An extracorporeal blood circulation system monitors blood level in a reservoir which temporarily stores the blood. A memory storage unit stores blood pressure measurements from a pressure sensor monitoring a blood pressure within a tube unit conveying blood from the reservoir relative to atmosphere. A processing unit that detects a height of a top surface of the blood stored in the reservoir based on changes in the blood pressure measurements and a conservation of mechanical energy of a blood flow inside the tube unit. A notification is generated if an abnormality is detected in the height of the blood in the reservoir.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: May 23, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Ryohei Katsuki, Tsuyoshi Hasegawa, Yuuki Hara, Tomoaki Hashimoto
  • PRE-FILLED SYRINGE
    Publication number: 20230149631
    Abstract: A prefilled syringe includes an outer cylinder, a gasket, a plunger, and a drug housed in the outer cylinder. The outer cylinder includes a flange part that is located at a proximal end part. The plunger includes a gasket pressing part and a shaft part that extends in a proximal end direction from a gasket pressing part. The shaft part includes indicator parts that are located on a proximal side of the gasket pressing part.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 18, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yohei TONO, Makoto SHIMIZU
  • Extracorporeal circulation apparatus
    Patent number: 11648340
    Abstract: An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 16, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • MEDICAL INSTRUMENT SET, DELIVERY SYSTEM, AND EMBOLIC DEVICE DELIVERY MEDICAL SYSTEM
    Publication number: 20230145301
    Abstract: A medical instrument set includes a embolic device loading catheter that includes a catheter body including a loading lumen having an open distal end, and a proximal hub including an insertion passage communicating with a proximal end of the loading lumen, and in which an embolic device is loaded in the loading lumen; and a delivery pusher that includes an elongated pusher body insertable into the loading lumen through the insertion passage of the proximal hub of the embolic device loading catheter. The catheter body includes a distal connection portion attachable to and detachable from a sheath hub on a distal side of the catheter body. The pusher body has a body length longer than a distance from a proximal end of the insertion passage of the proximal hub to a distal end opening of a sheath communicating with a sheath lumen of a delivery catheter.
    Type: Application
    Filed: January 13, 2023
    Publication date: May 11, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Hideaki SHIBATA, Eri IKUNO
  • Removal device and removal system
    Patent number: 11642151
    Abstract: A removal device and a removal system are configured to effectively remove an object in a body lumen while suppressing damage to another device. The removal device includes an elongated shaft part, and a cutting part fixed to a distal portion of the shaft part. The proximal portion of the cutting part includes a ring-shaped cutting blade, and a surface of the cutting part on which the cutting blade is positioned is inclined relative to center axis of the shaft part at an angle greater than 0 degrees and less than 90 degrees.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 9, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Masaomi Imai, Takashi Kitaoka, Kazuaki Kanamoto, Yuki Masubuchi
  • LEARNING MODEL GENERATION METHOD, IMAGE PROCESSING APPARATUS, PROGRAM, AND TRAINING DATA GENERATION METHOD
    Publication number: 20230133103
    Abstract: A learning model generation method includes: acquiring training data from a training database that records a plurality of sets of a tomographic image acquired using a tomographic image acquisition probe, and correct answer classification data in which each of pixels included in the tomographic image is classified into a plurality of regions including a living tissue region and a non-living tissue region, in association with each other; acquiring thin-walled part data relating to a thin-walled part thinner than a predetermined threshold value, for a predetermined region in the correct answer classification data; and performing a parameter adjustment process for a learning model that outputs output classification data in which each of the pixels included in the tomographic image is classified into the plurality of regions, based on the training data and the thin-walled part data.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Shunsuke YOSHIZAWA, Yasukazu SAKAMOTO, Katsuhiko SHIMIZU, Hiroyuki ISHIHARA
  • Guide wire
    Patent number: 11633574
    Abstract: A guide wire is disclosed, which is capable of reducing an unintended deviation in a guide wire position while preventing an occurrence of discomfort with respect to usability. The guide wire has a flexible core wire, and has a distal core portion, a main body portion, and a rigidity changing portion that gradually decreases in rigidity from the main body portion toward the distal core portion. The rigidity changing portion includes a first tapered portion continuous with a distal end of the main body portion, a second tapered portion continuous with a distal end of the first tapered portion, and a third tapered portion continuous with a proximal end of the distal core portion. A boundary portion between the first tapered portion and the second tapered portion is located in a range of 300 to 400 mm from a foremost distal end of the distal core portion.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: April 25, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Kohei Watanabe
  • Method and system for controlling rotational speed of an agitator or catheter
    Patent number: 11627982
    Abstract: A method and device handle having a slide assembly for controlling rotational speed of a catheter assembly under various rotational loads. The method includes setting a first current limit in a processor, activating the catheter assembly to rotate, calculating a current value in rotational period of a first current limit, updating a second current limit from the first current limit, and wherein the second current limit is lower than the first current limit.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: April 18, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuki Masubuchi, Steve Woodard, Mansour Saleki
  • METHOD OF DETERMINING DEVELOPMENT OF MYOCARDITIS OR RISK OF MYOCARDITIS DEVELOPMENT
    Publication number: 20230113252
    Abstract: Provided is a means capable of determining the development of myocarditis or the risk thereof by a simple and minimally invasive method. A method of determining the development of myocarditis or risk thereof, wherein it is determined that myocarditis is developed or there is a risk thereof when a concentration or expression amount of ADAM28 in a body fluid sample collected from a subject is reduced compared with a reference value.
    Type: Application
    Filed: March 2, 2021
    Publication date: April 13, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Ichiro HIRAHARA, Kiyoshi SAKATA, Hideki SATO, Hidenori TAKASAKI
  • SYMPTOM RECORDING APPARATUS, SYMPTOM RECORDING METHOD, AND PROGRAM
    Publication number: 20230116136
    Abstract: A symptom recording apparatus includes a control unit configured to perform control to output guidance on a method for confirming a body symptom of a user, receive an input operation of a confirmation result of the body symptom, and record the received confirmation result.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 13, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yoshihito MACHIDA, Xiaowei LU, Satoshi SAWADA
  • Blood component separation device
    Patent number: 11623033
    Abstract: A blood component separation device for separating a plurality of blood components from blood sampled from a blood donor, and collecting platelets, includes: an operation unit that calculates a predicted platelet recovery rate from a hematocrit value of the blood and a platelet concentration of the blood, and calculates a recommended processing amount of the blood recommended for collecting a target number of units of platelets on the basis of the calculated predicted platelet recovery rate, wherein the operating unit sets the predicted platelet recovery rate calculated from any the hematocrit value and any the platelet concentration to be smaller by a predetermined value a when the blood donor is female than that when the blood donor is male.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 11, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Shigeyuki Kimura
  • CATHETER
    Publication number: 20230106587
    Abstract: A catheter includes a shaft having a lumen extending from a distal end to a proximal end. The shaft includes a reinforcement body including a plurality of wires that are disposed on at least a part between an inner surface of the shaft forming the lumen and an outer surface of the shaft and that are braided in a tubular shape, and at least one radiopaque marker disposed between the reinforcement body and the outer surface of the shaft. An outer diameter difference, which is a difference between an outer diameter of the shaft in a portion where the marker is disposed and an outer diameter of the shaft in a portion adjacent to the marker in an axial direction of the shaft, is smaller than twice a thickness of the marker.
    Type: Application
    Filed: December 1, 2022
    Publication date: April 6, 2023
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takashi ITO, Keiichiro YAMAMOTO
  • Medical pump, method of controlling medical pump, and medical pump system
    Patent number: 11617830
    Abstract: A medical pump includes a reader configured to read drug identification information, a storage unit that stores the drug identification information read by the reader, a notification unit, and a control unit, in which when the reader reads drug identification information anew while the drug identification information is stored in the storage unit, the control unit compares the drug identification information being stored in the storage unit with the drug identification information read anew by the reader, and when the drug identification information being stored in the storage unit does not match the drug identification information read anew by the reader, the control unit causes the notification unit to notify of non-matching between drugs.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 4, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Takayuki Katsunuma
  • Extracorporeal circulation management device with heartbeat synchronizaton
    Patent number: 11617819
    Abstract: An extracorporeal circulation management device pumps blood in synchronization with heartbeats of a patient based on measurements of blood flow. Maximum and minimum blood flow measurement samples are compared with upper and lower threshold values to identify candidate timing for a systolic phase and diastolic phase of the heartbeat. During pulsatile pumping of the blood using the candidate timing, differences in the pulsatile flow measurements are determined. Based on the size of the difference, a final correction may be made to identification of the systolic and diastolic phases, and the corrected phase information is used to start and stop the motor unit.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: April 4, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Tomoaki Hashimoto, Tsuyoshi Hasegawa, Ryohei Katsuki, Yuuki Hara
  • Balloon catheter and method for manufacturing medical elongated body
    Patent number: 11617869
    Abstract: A balloon catheter and method for manufacturing are disclosed in which the fracturing of the vicinity of a proximal opening portion formed by an inner shaft can be prevented. A distal side of an inner shaft included by a balloon catheter is disposed in a lumen of an outer distal shaft, and a proximal side of the inner shaft is disposed on an outer surface of an outer proximal shaft, and the inner shaft forms a proximal opening portion which opens on an outer surface side of the outer proximal shaft. The inner shaft has a first region and a second region disposed on a proximal side of the first region. The first region is fixed to the outer surface of the outer proximal shaft. The second region is not fixed to the outer surface of the outer proximal shaft.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: April 4, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Akihiko Tarunaga