Patents Assigned to Mikuro Spring Co., Ltd.
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Patent number: 11571197Abstract: An in-tube transit object that is inserted in a tube includes: a coil section formed by winding a wire; and a fiber section attached to an end on one side and an end on the other side in a winding-axis direction of the coil section. The coil section is formed with a large diameter section, through which fiber of the fiber section is inserted, at the end on the one side and the end on the other side, and is inserted in an extending state in the winding-axis direction when the in-tube transit object is inserted into the tube. The fiber section is configured to expand when seen in the winding-axis direction in the case where the in-tube transit object is inserted in the tube and then discharged from the tube, which brings the coil section into a compressed state in the winding-axis direction.Type: GrantFiled: December 7, 2020Date of Patent: February 7, 2023Assignees: Mikuro Spring Co., Ltd., GUNZE LIMITEDInventors: Takayuki Koyama, Makoto Natori, Yusuke Sato, Saki Okumura, Yuuki Kato, Mieko Ishikawa
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Publication number: 20210244263Abstract: According to one embodiment, a coil sheath is provided which is formed by spirally winding a wire and having a plurality of unit loops arranged side by side in a direction of an axis, wherein each unit loop includes a plurality of non-circular loops each having a long axis portion and a short axis portion, a dimension of the long axis portion is longer than a short axis portion of the other loops, and, in front view seen in an axial direction, each unit loop includes a central space including the axis and a plurality of peripheral spaces located around the central space.Type: ApplicationFiled: February 10, 2021Publication date: August 12, 2021Applicants: nano grains Co., Ltd., Mikuro Spring Co., Ltd.Inventors: Keita Suzuki, Makoto Natori, Yusuke Sato
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Patent number: 11065008Abstract: An embolic coil is formed by being spirally wound by an element wire and is filled into an aneurysm. The embolic coil includes: a first coil portion, in which a large-diameter coil portion wound to have a large diameter D1 and a small-diameter coil portion wound to have a diameter D2 smaller than the large-diameter coil portion are arranged in a plurality of coils and alternately in a longitudinal direction Y of the embolic coil. A second coil portion is wound to be continuous with the first coil portion and to have a surface flatter than the first coil portion.Type: GrantFiled: December 6, 2016Date of Patent: July 20, 2021Assignees: SHINSHU UNIVERSITY, Mikuro Spring Co., Ltd.Inventors: Junichi Koyama, Takuya Kojima, Makoto Natori, Yusuke Sato
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Publication number: 20210177388Abstract: An in-tube transit object that is inserted in a tube includes: a coil section formed by winding a wire; and a fiber section attached to an end on one side and an end on the other side in a winding-axis direction of the coil section. The coil section is formed with a large diameter section, through which fiber of the fiber section is inserted, at the end on the one side and the end on the other side, and is inserted in an extending state in the winding-axis direction when the in-tube transit object is inserted into the tube. The fiber section is configured to expand when seen in the winding-axis direction in the case where the in-tube transit object is inserted in the tube and then discharged from the tube, which brings the coil section into a compressed state in the winding-axis direction.Type: ApplicationFiled: December 7, 2020Publication date: June 17, 2021Applicants: Mikuro Spring Co., Ltd., GUNZE LIMITEDInventors: Takayuki KOYAMA, Makoto NATORI, Yusuke SATO, Saki OKUMURA, Yuuki KATO, Mieko ISHIKAWA
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Publication number: 20190142436Abstract: An embolic coil is formed by being spirally wound by an element wire and is filled into an aneurysm. The embolic coil includes: a first coil portion, in which a large-diameter coil portion wound to have a large diameter D1 and a small-diameter coil portion wound to have a diameter D2 smaller than the large-diameter coil portion are arranged in a plurality of coils and alternately in a longitudinal direction Y of the embolic coil. A second coil portion is wound to be continuous with the first coil portion and to have a surface flatter than the first coil portion.Type: ApplicationFiled: December 6, 2016Publication date: May 16, 2019Applicants: SHINSHU UNIVERSITY, Mikuro Spring Co., Ltd.Inventors: Junichi KOYAMA, Takuya KOJIMA, Makoto NATORI, Yusuke SATO