Patents by Inventor Koichiro TASHIRO
Koichiro TASHIRO 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: 11766542Abstract: 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: GrantFiled: December 3, 2020Date of Patent: September 26, 2023Assignee: TERUMO KABUSHIKI KAISHAInventors: Yuya Otake, Kota Hamuro, Koichiro Tashiro, Mariko Maruyama, Tetsuya Fukuoka
-
Publication number: 20210085914Abstract: 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: ApplicationFiled: December 3, 2020Publication date: March 25, 2021Applicant: TERUMO KABUSHIKI KAISHAInventors: Yuya OTAKE, Kota HAMURO, Koichiro TASHIRO, Mariko MARUYAMA, Tetsuya FUKUOKA
-
Patent number: 10874828Abstract: 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: GrantFiled: September 14, 2016Date of Patent: December 29, 2020Assignee: TERUMO KABUSHIKI KAISHAInventors: Yuya Otake, Kota Hamuro, Koichiro Tashiro, Mariko Maruyama, Tetsuya Fukuoka
-
Patent number: 10213578Abstract: A catheter assembly includes an outer catheter and an inner catheter. The inner catheter has an accommodation unit which can be positioned on a farther distal side than an outer catheter body in a state where an inner catheter body is inserted into the outer catheter body, extends in a proximal direction from the inner catheter body, and can accommodate an outer catheter distal portion so as to surround an outer circumference thereof in a state where the outer catheter distal portion formed at a distal end of the outer catheter body is reduced in diameter. The outer catheter distal portion can be separated from the accommodation unit and can expand in diameter by moving the inner catheter body in a distal end direction relatively with respect to the outer catheter body from a state of being accommodated in the accommodation unit.Type: GrantFiled: March 18, 2015Date of Patent: February 26, 2019Assignee: TERUMO KABUSHIKI KAISHAInventors: Tetsuya Fukuoka, Yuya Otake, Kouta Hamuro, Koichiro Tashiro, Mariko Maruyama
-
Patent number: 10130790Abstract: 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: GrantFiled: January 21, 2016Date of Patent: November 20, 2018Assignee: TERUMO KABUSHIKI KAISHAInventors: Yuya Otake, Kota Hamuro, Koichiro Tashiro, Mariko Maruyama, Tetsuya Fukuoka
-
Publication number: 20170000973Abstract: 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: ApplicationFiled: September 14, 2016Publication date: January 5, 2017Applicant: TERUMO KABUSHIKI KAISHAInventors: Yuya OTAKE, Kota HAMURO, Koichiro TASHIRO, Mariko MARUYAMA, Tetsuya FUKUOKA
-
Publication number: 20160136387Abstract: 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: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Applicant: TERUMO KABUSHIKI KAISHAInventors: Yuya OTAKE, Kota HAMURO, Koichiro TASHIRO, Mariko MARUYAMA, Tetsuya FUKUOKA
-
Publication number: 20150265802Abstract: A catheter assembly includes an outer catheter and an inner catheter. The inner catheter has an accommodation unit which can be positioned on a farther distal side than an outer catheter body in a state where an inner catheter body is inserted into the outer catheter body, extends in a proximal direction from the inner catheter body, and can accommodate an outer catheter distal portion so as to surround an outer circumference thereof in a state where the outer catheter distal portion formed at a distal end of the outer catheter body is reduced in diameter. The outer catheter distal portion can be separated from the accommodation unit and can expand in diameter by moving the inner catheter body in a distal end direction relatively with respect to the outer catheter body from a state of being accommodated in the accommodation unit.Type: ApplicationFiled: March 18, 2015Publication date: September 24, 2015Applicant: TERUMO KABUSHIKI KAISHAInventors: Tetsuya FUKUOKA, Yuya OTAKE, Kouta HAMURO, Koichiro TASHIRO, Mariko MARUYAMA