Patents by Inventor Kota HAMURO

Kota HAMURO 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).

  • Patent number: 11134982
    Abstract: A rapid exchange type medical elongated body is disclosed in which an outer diameter of a distal portion of a tubular member is set smaller than an outer diameter of a proximal portion of the tubular member, which prevents an occurrence of a kink in a physical property change region of the medical elongated body which has a relatively large change in physical property. A tubular member forming a second region of a distal member of a medical elongated body is integrally formed with a shaft portion. The distal member has a reinforcement layer containing a metallic material and formed between an inner layer and an outer layer from a first region to the second region. The reinforcement layer is disposed inside the tubular member in the second region. An outer diameter of the first region is set smaller than an outer diameter of the second region.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: October 5, 2021
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kenta Suzuki, Kota Hamuro, Takito Inukai
  • Publication number: 20210298786
    Abstract: A rapid exchange type medical elongated body is disclosed in which an outer diameter of a distal portion of a tubular member is set smaller than an outer diameter of a proximal portion of the tubular member, which prevents an occurrence of a kink in a physical property change region of the medical elongated body which has a relatively large change in physical property. A tubular member forming a second region of a distal member of a medical elongated body is integrally formed with a shaft portion. The distal member has a reinforcement layer containing a metallic material and formed between an inner layer and an outer layer from a first region to the second region. The reinforcement layer is disposed inside the tubular member in the second region. An outer diameter of the first region is set smaller than an outer diameter of the second region.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 30, 2021
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kenta SUZUKI, Kota HAMURO, Takito INUKAI
  • Patent number: 11065417
    Abstract: A catheter manufacturing method includes positioning a shaft in a cavity of a mold. The shaft is an elongated tubular body configured to be inserted into a living body. The mold includes a first mold die and a second mold die that contact one another to define a closed space which is the cavity. The method includes injecting a molding material into the cavity from a gate at a position between the proximal end and the distal end of the shaft in the axial direction. The injecting position is offset from the center of the shaft in the transverse direction. The method includes molding a hub onto the shaft by solidifying the injected molding material in the cavity onto the outer surface of the shaft.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: July 20, 2021
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Takito Inukai, Shun Matsushita, Yuya Otake, Kota Hamuro
  • Publication number: 20210085914
    Abstract: A catheter that includes an inner layer forming the inner surface of a tubular catheter main body having a lumen, an outer layer forming the outer surface of the catheter main body, and multiple reinforcements embedded between the inner surface and the outer surface. The inner diameter of the catheter main body is D1, the outer diameter is D2, the wall thickness is T1, a thickness of each reinforcement is T2, an effective width of each reinforcement is W, and a total number of the multiple reinforcements is N. The catheter satisfies Expressions (1), (2), and (3): 0.050 mm?T1?0.100 mm??Expression (1) T2/T1?0.25??Expression (2) 60,000?(D1×D2×W×N)/(T12×T2)<1,000,000??Expression (3).
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuya OTAKE, Kota HAMURO, Koichiro TASHIRO, Mariko MARUYAMA, Tetsuya FUKUOKA
  • Patent number: 10874828
    Abstract: A catheter that includes an inner layer forming the inner surface of a tubular catheter main body having a lumen, an outer layer forming the outer surface of the catheter main body, and multiple reinforcements embedded between the inner surface and the outer surface. The inner diameter of the catheter main body is D1, the outer diameter is D2, the wall thickness is T1, a thickness of each reinforcement is T2, an effective width of each reinforcement is W, and a total number of the multiple reinforcements is N. The catheter satisfies Expressions (1), (2), and (3): 0.050 mm?T1?0.100 mm??Expression (1) T2/T1?0.25??Expression (2) 60,000?(D1×D2×W×N)/(T12×T2)<1,000,000??Expression (3).
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 29, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuya Otake, Kota Hamuro, Koichiro Tashiro, Mariko Maruyama, Tetsuya Fukuoka
  • Publication number: 20200038056
    Abstract: A rapid exchange type medical elongated body is disclosed in which an outer diameter of a distal portion of a tubular member is set smaller than an outer diameter of a proximal portion of the tubular member, which prevents an occurrence of a kink in a physical property change region of the medical elongated body which has a relatively large change in physical property. A tubular member forming a second region of a distal member of a medical elongated body is integrally formed with a shaft portion. The distal member has a reinforcement layer containing a metallic material and formed between an inner layer and an outer layer from a first region to the second region. The reinforcement layer is disposed inside the tubular member in the second region. An outer diameter of the first region is set smaller than an outer diameter of the second region.
    Type: Application
    Filed: September 26, 2019
    Publication date: February 6, 2020
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kenta SUZUKI, Kota HAMURO, Takito INUKAI
  • Publication number: 20190255282
    Abstract: A catheter manufacturing method includes positioning a shaft in a cavity of a mold. The shaft is an elongated tubular body configured to be inserted into a living body. The mold includes a first mold die and a second mold die that contact one another to define a closed space which is the cavity. The method includes injecting a molding material into the cavity from a gate at a position between the proximal end and the distal end of the shaft in the axial direction. The injecting position is offset from the center of the shaft in the transverse direction. The method includes molding a hub onto the shaft by solidifying the injected molding material in the cavity onto the outer surface of the shaft.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takito INUKAI, Shun MATSUSHITA, Yuya OTAKE, Kota HAMURO
  • Patent number: 10130790
    Abstract: A catheter is disclosed which has at least a two-layered structure and can suppress decrease in function thereof by suppressing the disorder at an interface between layers during use, and a method for manufacturing the same. The catheter has an inner layer as a tube shaped body made of a thermoplastic resin and an outer layer, as a tube shaped body made of a thermoplastic resin, coming into contact with the outer surface of the inner layer, and has a reinforcement member which is at least partially embedded in the inner layer and includes a gap leading the inner layer toward the radial outside of the catheter. The inner layer has a protrusion which extends in an axial direction of the catheter while protruding from the gap to the radial outside, is positioned on the radial outside of the reinforcement member, and ingrows into the outer layer.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: November 20, 2018
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuya Otake, Kota Hamuro, Koichiro Tashiro, Mariko Maruyama, Tetsuya Fukuoka
  • Patent number: 10065019
    Abstract: Disclosed herein is a strain relief having a plurality of enclosing parts arranged in an axial direction and enclosing a longitudinal axis of the strain relief. A space portion can be formed between adjacent enclosing parts so that the strain relief is freely bendable. In the strain relief, the adjacent enclosing parts are interconnected, and one or both of opposed surfaces of the adjacent enclosing parts can be provided with a projection that projects in a direction substantially parallel with the longitudinal axis.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: September 4, 2018
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kota Hamuro, Hiroyoshi Ise
  • Publication number: 20170000973
    Abstract: A catheter that includes an inner layer forming the inner surface of a tubular catheter main body having a lumen, an outer layer forming the outer surface of the catheter main body, and multiple reinforcements embedded between the inner surface and the outer surface. The inner diameter of the catheter main body is D1, the outer diameter is D2, the wall thickness is T1, a thickness of each reinforcement is T2, an effective width of each reinforcement is W, and a total number of the multiple reinforcements is N. The catheter satisfies Expressions (1), (2), and (3): 0.050 mm?T1?0.100 mm??Expression (1) T2/T1?0.25??Expression (2) 60,000?(D1×D2×W×N)/(T12×T2)<1,000,000??Expression(3).
    Type: Application
    Filed: September 14, 2016
    Publication date: January 5, 2017
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuya OTAKE, Kota HAMURO, Koichiro TASHIRO, Mariko MARUYAMA, Tetsuya FUKUOKA
  • Publication number: 20160136387
    Abstract: A catheter is disclosed which has at least a two-layered structure and can suppress decrease in function thereof by suppressing the disorder at an interface between layers during use, and a method for manufacturing the same. The catheter has an inner layer as a tube shaped body made of a thermoplastic resin and an outer layer, as a tube shaped body made of a thermoplastic resin, coming into contact with the outer surface of the inner layer, and has a reinforcement member which is at least partially embedded in the inner layer and includes a gap leading the inner layer toward the radial outside of the catheter. The inner layer has a protrusion which extends in an axial direction of the catheter while protruding from the gap to the radial outside, is positioned on the radial outside of the reinforcement member, and ingrows into the outer layer.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuya OTAKE, Kota HAMURO, Koichiro TASHIRO, Mariko MARUYAMA, Tetsuya FUKUOKA