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公开(公告)号：US11452542B2
公开(公告)日：2022-09-27
申请号：US16138024
申请日：2018-09-21
发明人： Kosuke Nishio , Tomonori Hatta
IPC分类号： A61B17/32 , A61B17/3207 , A61B90/00
摘要： A medical device and a treatment method are disclosed, which can improve safety by reducing damage to a biological tissue while an object inside a biological lumen can be cut. A medical device is disclosed for cutting an object inside a biological lumen includes a rotatable drive shaft, and a rotary structure that interlocks with a distal side of the drive shaft so as to be rotated by the drive shaft. The rotary structure has a cutting portion for cutting the object, and a non-cutting portion capable of smoothly coming into contact with a biological tissue. The non-cutting portion is located in a maximum outer diameter portion of the rotary structure.
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公开(公告)号：US11090077B2
公开(公告)日：2021-08-17
申请号：US15998407
申请日：2018-08-15
发明人： Yuki Itoh , Yuichi Tada , Kosuke Nishio
IPC分类号： A61B17/32 , A61B17/3207 , A61B17/00 , A61B17/22
摘要： A medical device has a rotatable drive shaft, a rotary body whose distal end includes a cutting edge for applying a cutting force to a stenosed site, and that is disposed on a distal side of the drive shaft so as to be rotated in conjunction with rotation of the drive shaft, and a distal member disposed in the rotary body. The distal member has a support portion extending to a distal side beyond a distal end of the rotary body, and configured to be capable of supporting the rotary body with respect to a blood vessel. The support portion is configured so that a distance from the rotary body is variable in a first direction (height direction) in which the rotary body is moved close to the stenosed site.
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公开(公告)号：US10888350B2
公开(公告)日：2021-01-12
申请号：US15992636
申请日：2018-05-30
发明人： Taiga Nakano , Junichi Kobayashi , Tomonori Hatta , Kosuke Nishio
摘要： A device handle is disclosed for grinding substances inside a body lumen, the device handle comprising: a high-speed drive source configured to rotate a treatment member connected to a distal end of a drive shaft; and a low-speed drive source connected to a revolution shaft, and wherein the revolution shaft is configured to cause the treatment member to move about a central axis of the revolution shaft, and wherein the central axis of a proximal portion of the revolution shaft is different from a central axis of the treatment member.
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公开(公告)号：US09782105B2
公开(公告)日：2017-10-10
申请号：US14622222
申请日：2015-02-13
发明人： Keisuke Yoshino , Kei Honda , Kosuke Nishio , Akira Kondou , Takeshi Tsubouchi , Miyuki Koyama
CPC分类号： A61B5/0537 , A61B5/4875 , A61B2560/0418 , A61B2562/029 , A61B2562/247 , G01N33/18
摘要： A device (100) for measuring the amount of water in a subject's body includes a main body part (110) formed in a linear shape and an insertion part (120) extending in a curved shape from one end of the main body part (100). The insertion part (120) includes a tip side insertion part (120-2) having a tip surface (122) to which a sensor unit (121) is fixed and a base end side insertion part (120-1), wherein the sensor unit (121) is brought into contact with a body surface of a subject through a slide mechanism. A protective member (651) liquid-tightly covers the slide mechanism between the tip side insertion part (120-2) and a base end side insertion part (120-1). The protective member (651) smoothly connects the outer peripheral surface of the tip side insertion part (120-2) and the outer peripheral surface of the base end side insertion part (120-1).
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公开(公告)号：US12114884B2
公开(公告)日：2024-10-15
申请号：US18363062
申请日：2023-08-01
发明人： Taiga Nakano , Junichi Kobayashi , Tomonori Hatta , Kosuke Nishio
IPC分类号： A61B17/22 , A61B17/32 , A61B17/3207
CPC分类号： A61B17/32002 , A61B17/22 , A61B2017/22078 , A61B17/320016 , A61B2017/320032 , A61B2017/320075 , A61B17/320758 , A61B2217/005 , A61B2217/007
摘要： A medical device and can remove an object inside a biological lumen while allowing a positional change of the device inside the biological lumen. The medical device includes a drive shaft, an outer tube accommodating the drive shaft, a cutting portion fixed to a distal portion of the drive shaft, and a hub unit housing proximal portions of the drive shaft and the outer tube. The hub unit has an operation unit fixed to the outer surface of the outer tube to rotate the outer tube, a first support portion rotatably supporting the operation unit, a first housing having an aspiration port for discharging fluid to outside, and causing communication of an aspiration lumen of the outer tube with the aspiration port, and a first seal between the first housing and the outer tube. The first support portion and the first seal are disposed in parallel along an axial direction.
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公开(公告)号：US11000304B2
公开(公告)日：2021-05-11
申请号：US15998406
申请日：2018-08-15
发明人： Yuichi Tada , Yuki Itoh , Kosuke Nishio
IPC分类号： A61B17/32 , A61B90/00 , A61B17/3207 , A61B17/00 , A61B17/22
摘要： A medical device has a rotatable drive shaft, a rotary body that includes a cutting edge for applying a cutting force to a stenosed site, and that is disposed on a distal side of the drive shaft so as to be rotated in conjunction with rotation of the drive shaft, a switching portion whose distal end is disposed at a position protruding from the cutting edge, and a holding portion that holds the switching portion so as to move the switching portion on the same plane as the cutting edge or to a position away from the stenosed site beyond the cutting edge in accordance with a pushing force, when the switching portion is pushed against the stenosed site.
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公开(公告)号：US12114886B2
公开(公告)日：2024-10-15
申请号：US16926893
申请日：2020-07-13
发明人： Kosuke Nishio , Junichi Kobayashi , Tomonori Hatta , Taiga Nakano
IPC分类号： A61B17/3207 , A61B17/32 , A61B17/00 , A61B17/22
CPC分类号： A61B17/320758 , A61B17/32002 , A61B17/3207 , A61B2017/00845 , A61B2017/22038 , A61B2017/320032
摘要： A medical device for grinding substance inside a body lumen includes a rotatable tubular drive shaft, a treatment member connected to the drive shaft, and a tubular member possessing an axially extending lumen that extends throughout the tubular member. The tubular member is mounted on the treatment member and surrounds a portion of the treatment member so that the treatment member is rotatable relative to the tubular member. The treatment member includes a shearing portion, and the tubular member includes a protrusion that projects toward the lumen of the tubular member. The protrusion is located axially in front of the shearing portion and interacts with the shearing portion during relative rotation between the treatment member and the tubular member to shear debris resulting from the grinding of the substance.
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公开(公告)号：US10786278B2
公开(公告)日：2020-09-29
申请号：US15610320
申请日：2017-05-31
发明人： Kosuke Nishio , Junichi Kobayashi , Tomonori Hatta , Taiga Nakano
IPC分类号： A61B17/3207 , A61B17/32 , A61B17/00 , A61B17/22
摘要： A medical device for grinding substance inside a body lumen includes a rotatable tubular drive shaft, a treatment member connected to the drive shaft, and a tubular member possessing an axially extending lumen that extends throughout the tubular member. The tubular member is mounted on the treatment member and surrounds a portion of the treatment member so that the treatment member is rotatable relative to the tubular member. The treatment member includes a shearing portion, and the tubular member includes a protrusion that projects toward the lumen of the tubular member. The protrusion is located axially in front of the shearing portion and interacts with the shearing portion during relative rotation between the treatment member and the tubular member to shear debris resulting from the grinding of the substance.
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公开(公告)号：US09764119B2
公开(公告)日：2017-09-19
申请号：US14858489
申请日：2015-09-18
发明人： Kosuke Nishio , Riyaheh S. Hazama
IPC分类号： A61F2/04 , A61M27/00 , A61B17/00 , A61M29/00 , A61M31/00 , A61M25/04 , A61M25/10 , A61M29/02 , A61M25/01
CPC分类号： A61M27/008 , A61B17/00234 , A61B2017/00292 , A61M25/04 , A61M25/1011 , A61M29/00 , A61M29/02 , A61M31/00 , A61M2025/0175 , A61M2025/1013 , A61M2210/167
摘要： A urethral stricture treatment apparatus and treatment method are disclosed, which can easily inhibit the position of a medical material from deviating from a treatment site and can make the medical material selectively indwell different treatment sites. The urethral stricture treatment apparatus can have a dilation portion, which dilates in a state of holding a medical material providing an epithelial function so as to bring the medical material into contact with an inner wall of urethra, and a restriction portion which is provided in a position closer to a distal side than the dilation portion in an insertion direction such that a distance between the restriction portion and the dilation portion can be relative changed, and comes into contact with external urethral sphincter in a living body so as to restrict the movement of the medical material toward the distal side.
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公开(公告)号：US20150327980A1
公开(公告)日：2015-11-19
申请号：US14451784
申请日：2014-08-05
发明人： Kosuke Nishio , Riyaheh Arastoo
CPC分类号： A61F2/04 , A61F2/0063 , A61F2/82 , A61F2/848 , A61F2/92 , A61F2/95 , A61F2/958 , A61F2002/0072 , A61F2002/047 , A61F2002/9583 , A61F2220/0016 , A61F2220/005 , A61F2220/0075 , A61M25/0017 , A61M25/10 , A61M25/1029 , A61M2025/1015 , A61M2025/1031 , A61M2025/1054 , A61M2025/1081 , A61M2025/1086 , B29C66/4322 , B29L2031/7543 , Y10T29/49838 , Y10T29/49909 , Y10T156/1038
摘要： A method of treating a treatment area of a body lumen includes inserting an elongated member into the body lumen, wherein the elongated member is configured to guide a delivery member, the delivery member possessing an outer portion on which is mounted a treatment membrane, moving the delivery member to the treatment area, contacting the treatment membrane mounted on the delivery member with the treatment area for a predetermined period of time, and withdrawing the delivery member from the treatment area after the predetermined period of time.
摘要翻译： 处理体腔的治疗区域的方法包括将细长构件插入体腔中，其中细长构件构造成引导输送构件，输送构件具有安装有处理膜的外部部分，移动 将处理区域传送到处理区域，将安装在传送部件上的处理膜与处理区域接触预定时间段，并且在预定时间段之后从处理区域取出传送部件。
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