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公开(公告)号：US11690638B2
公开(公告)日：2023-07-04
申请号：US17382438
申请日：2021-07-22
IPC分类号： A61B17/22 , A61B17/221 , A61F2/01
CPC分类号： A61B17/221 , A61B17/22 , A61F2/012 , A61F2/013 , A61F2/0105 , A61F2/0108 , A61B2017/2212 , A61B2017/22084 , A61F2002/015 , A61F2002/016
摘要： A medical device to be inserted into a blood vessel for effectively removing an object flowing in a biological lumen while reducing the burden on the living body includes an elongated shaft portion, and an expansion portion which is an elastically deformable cylindrical body having a plurality of gaps and in which a proximal portion or a distal portion of the cylindrical body is interlocked with the shaft portion. The expansion portion has a ring-shaped or annular bent portion which protrudes toward a proximal side position radially outside the expansion portion in a bent state of being bent along an axial direction, and an axial length of a second portion from the bent portion to a proximal end of the expansion portion is shorter than an axial length of a first portion from the bent portion to the distal end of the expansion portion.
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公开(公告)号：US11382651B2
公开(公告)日：2022-07-12
申请号：US16274611
申请日：2019-02-13
发明人： Takashi Kitaoka , Masaomi Imai , Yuki Masubuchi , Takahiro Chida , Kazuaki Kanamoto , Hideki Fujimagari
IPC分类号： A61B17/3207 , A61B17/221 , A61B17/00 , A61B17/22
摘要： A medical device and a treatment method are disclosed capable of breaking an object in a body lumen efficiently with a lower burden on body lumen tissues. A medical device is disclosed that is inserted into the body lumen so as to crush an object in the body lumen, the medical device including: an elongated shaft that is to be rotatably driven, and a deformable breaking member that is connected to the shaft so as to be rotatable and extends along the shaft. The breaking member has a first contact portion and a second contact portion. The first contact portion is located most outward in the radial direction of the breaking member in a state in which the breaking member is expanded radially outward. The second contact portion is located more outward in the radial direction of the breaking member than the first contact portion in a contracted state.
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公开(公告)号：US11065020B2
公开(公告)日：2021-07-20
申请号：US16288425
申请日：2019-02-28
IPC分类号： A61B17/221 , A61B17/3207 , A61B17/22 , A61M25/00
摘要： A method for suctioning an object in a blood vessel, the method comprising: inserting an expansion portion connected to a shaft portion on a distal portion of the shaft portion into the blood vessel; expanding the expansion portion in the blood vessel; inserting a suction catheter along the shaft portion into the blood vessel; reciprocating at least the expansion portion or the suction catheter relative to each other along an axial axis of the shaft portion; and suctioning the object with the suction catheter.
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公开(公告)号：US11642151B2
公开(公告)日：2023-05-09
申请号：US17016847
申请日：2020-09-10
IPC分类号： A61B17/3207 , A61B17/32
CPC分类号： A61B17/320758 , A61B17/32002 , A61B2017/320024 , A61B2217/005
摘要： 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.
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公开(公告)号：US11096705B2
公开(公告)日：2021-08-24
申请号：US16282436
申请日：2019-02-22
IPC分类号： A61B17/221 , A61B17/22 , A61F2/01
摘要： A medical device to be inserted into a blood vessel for effectively removing an object flowing in a biological lumen while reducing the burden on the living body includes an elongated shaft portion, and an expansion portion which is an elastically deformable cylindrical body having a plurality of gaps and in which a proximal portion or a distal portion of the cylindrical body is interlocked with the shaft portion. The expansion portion has a ring-shaped or annular bent portion which protrudes toward a proximal side position radially outside the expansion portion in a bent state of being bent along an axial direction, and an axial length of a second portion from the bent portion to a proximal end of the expansion portion is shorter than an axial length of a first portion from the bent portion to the distal end of the expansion portion.
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公开(公告)号：US10653433B2
公开(公告)日：2020-05-19
申请号：US15439005
申请日：2017-02-22
IPC分类号： A61B17/22 , A61B17/3207
摘要： Provided is a medical device designed to be inserted into a lumen of a living body, the medical device including: a long shaft part; and a cylindrical hollow body. The shaft part has a center axis at position which differs from a center axis of the hollow body on a cross section perpendicular to the center axis of the shaft part. The hollow body has a housing part extending along the center axis of the hollow body, the hollow body being a groove depressed from an outer peripheral surface to an inner peripheral surface or a slit penetrating from an outer peripheral surface to an inner peripheral surface. The shaft part is positioned between inner surfaces facing from the outer peripheral surface to the inner peripheral surface in such a way that at least a portion of the shaft part constitutes the slit or the groove of the housing part.
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公开(公告)号：US20170065288A1
公开(公告)日：2017-03-09
申请号：US15255456
申请日：2016-09-02
IPC分类号： A61B17/22 , A61B17/3207
CPC分类号： A61B17/320725 , A61B17/12022 , A61B17/1204 , A61B17/12109 , A61B17/12172 , A61B17/221 , A61B17/320783 , A61B2017/00862 , A61B2017/00867 , A61B2017/22039 , A61B2017/22067 , A61B2017/22079 , A61B2017/320716
摘要： A medical device is disclosed for restricting a flow in a body lumen by being inserted into the body lumen. The medical device including an elongated shaft part; an expansion part which is a tubular body having a plurality of gaps and elastically deformable, with the shaft part being connected to at least one of both side end portions of the tubular body; a cover part which is flexibly deformable independently from the expansion part while surrounding an outer circumference of the expansion part, which is tubular in shape, both end portions of the tubular shape being connected to both end portions of the expansion part; and a sheath in which the expansion part and the cover part both contracted in diameter can be accommodated.
摘要翻译： 公开了一种用于通过插入体腔来限制体腔内的流动的医疗装置。 所述医疗装置包括细长轴部; 膨胀部，其是具有多个间隙并且可弹性变形的管状体，其中所述轴部连接到所述管状体的两个侧端部中的至少一个; 所述盖部能够与所述膨胀部独立地弹性变形，同时围绕所述膨胀部的外周形状，所述膨胀部的外周形状为管状，所述筒状的两端部与所述膨胀部的两端部连接; 并且可以容纳其中膨胀部分和盖部分都直径收缩的护套。
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公开(公告)号：US11534188B2
公开(公告)日：2022-12-27
申请号：US15842427
申请日：2017-12-14
IPC分类号： A61B17/221 , A61F2/01
摘要： A medical device and a treatment method are disclosed that can be applied to body lumina with a wide range of inside diameters and can enhance a property for suction of a substance from the inside of a body lumen by restricting flow within the body lumen. The medical device includes an elongated shaft section; an expanding section that is an elastically deformable tubular body provided with a plurality of openings; a flexibly deformable tubular cover section that is coupled to an end portion on a proximal side of the expanding section, surrounds an outer periphery of the expanding section on the proximal side, but does not surround, and externally exposes, an outer periphery of the expanding section on a distal side; and a sheath capable of accommodating the expanding section and the cover section in a diameter-reduced state.
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公开(公告)号：US10517619B2
公开(公告)日：2019-12-31
申请号：US15439364
申请日：2017-02-22
IPC分类号： A61B17/22 , A61B17/3207 , A61B17/00 , A61B17/32
摘要： A medical device designed to be inserted into a lumen of a living body so as to block a flow of fluid in the lumen of the living body. The medical device includes: a long shaft part; an expandable part; and a covering part. The expandable part is an elastically deformable cylindrical body, and the cylindrical body having a proximal part connected to the shaft part. The covering part takes on a cylindrical shape and is flexible and deformable independently of the expandable part, and the cylindrical shape has a proximal part connected to a proximal part of the expandable part or connected to the shaft part located at a proximal side with respect to the expandable part. The covering part defines a space in the radial direction between a distal side end part of the cylindrical shape and the expandable part.
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公开(公告)号：US20190175212A1
公开(公告)日：2019-06-13
申请号：US16274611
申请日：2019-02-13
发明人： Takashi KITAOKA , Masaomi Imai , Yuki Masubuchi , Takahiro Chida , Kazuaki Kanamoto , Hideki Fujimagari
IPC分类号： A61B17/3207 , A61B17/221
摘要： A medical device and a treatment method are disclosed capable of breaking an object in a body lumen efficiently with a lower burden on body lumen tissues. A medical device is disclosed that is inserted into the body lumen so as to crush an object in the body lumen, the medical device including: an elongated shaft that is to be rotatably driven, and a deformable breaking member that is connected to the shaft so as to be rotatable and extends along the shaft. The breaking member has a first contact portion and a second contact portion. The first contact portion is located most outward in the radial direction of the breaking member in a state in which the breaking member is expanded radially outward. The second contact portion is located more outward in the radial direction of the breaking member than the first contact portion in a contracted state.
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