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公开(公告)号：US20170128702A1
公开(公告)日：2017-05-11
申请号：US15129002
申请日：2015-03-31
IPC分类号： A61M25/10
CPC分类号： A61M25/1006 , A61M25/0097 , A61M2025/1068
摘要： A balloon catheter includes an inner cylinder shaft having a small-diameter inner cylinder section in a tip side and a large-diameter inner cylinder section in a base-end side; an outer cylinder shaft with the inner cylinder shaft in its lumen; a balloon whose tip is fixed at a tip of the inner cylinder shaft, and whose base end is fixed at the tip of the outer cylinder shaft, wherein the outer cylinder shaft and the inner cylinder shaft slide over each other and cause a shape change between a normal balloon shape and an extended balloon shape; and a housing communicating with the lumen of the outer cylinder shaft, and having a small-diameter lumen in the tip side and a large-diameter lumen in the base-end side; wherein the housing has an insertion inlet for insertion of the inner cylinder shaft, and a liquid inlet/outlet.
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公开(公告)号：US11877795B2
公开(公告)日：2024-01-23
申请号：US16967845
申请日：2019-02-08
发明人： Takahiro Yagi
CPC分类号： A61B18/1492 , A61B2018/0022 , A61B2018/00059 , A61B2018/00577 , A61B2018/00791 , A61B2018/00821 , A61M25/1006 , A61M2025/0175
摘要： A balloon catheter includes a flexible outer cylinder shaft, a holding member connected to a proximal end portion of the outer cylinder shaft, a sealing member that maintains liquid tightness incorporated in the holding member, a flexible inner cylinder shaft, a tube having a Rockwell hardness of R 115 or more, a flexural modulus of 3.0 to 4.5 GPa, and a thickness of 0.06 to 0.12 mm, a push-in member connected to a proximal end portion of the inner cylinder shaft, a pull-out prevention member connected to the push-in member, and a balloon composed of an elastic material and connected to each of the distal end portion of the outer cylinder shaft and the proximal end portion of the inner cylinder shaft, wherein the tube is inserted over the inner cylinder shaft over an area thereof except for a connecting portion between the balloon and the inner cylinder shaft.
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公开(公告)号：US11172983B2
公开(公告)日：2021-11-16
申请号：US14777634
申请日：2014-03-28
发明人： Takahiro Yagi , Motoki Takaoka , Akinori Matsukuma
摘要： A balloon ablation catheter includes a catheter shaft containing a reinforcement wire in a thick section; a balloon provided at an end of the catheter shaft; and a high-frequency electric current electrode arranged in the balloon; which balloon ablation catheter satisfies L>t, wherein L represents the shortest distance from the surface of the reinforcement wire to the surface of the catheter shaft, and t represents the wall thickness of the thinnest portion of the balloon.
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公开(公告)号：US20210045806A1
公开(公告)日：2021-02-18
申请号：US16967845
申请日：2019-02-08
发明人： Takahiro Yagi
IPC分类号： A61B18/14
摘要： A balloon catheter includes a flexible outer cylinder shaft, a holding member connected to a proximal end portion of the outer cylinder shaft, a sealing member that maintains liquid tightness incorporated in the holding member, a flexible inner cylinder shaft, a tube having a Rockwell hardness of R 115 or more, a flexural modulus of 3.0 to 4.5 GPa, and a thickness of 0.06 to 0.12 mm, a push-in member connected to a proximal end portion of the inner cylinder shaft, a pull-out prevention member connected to the push-in member, and a balloon composed of an elastic material and connected to each of the distal end portion of the outer cylinder shaft and the proximal end portion of the inner cylinder shaft, wherein the tube is inserted over the inner cylinder shaft over an area thereof except for a connecting portion between the balloon and the inner cylinder shaft.
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公开(公告)号：US10342959B2
公开(公告)日：2019-07-09
申请号：US15129002
申请日：2015-03-31
摘要： A balloon catheter includes an inner cylinder shaft having a small-diameter inner cylinder section in a tip side and a large-diameter inner cylinder section in a base-end side; an outer cylinder shaft with the inner cylinder shaft in its lumen; a balloon whose tip is fixed at a tip of the inner cylinder shaft, and whose base end is fixed at the tip of the outer cylinder shaft, wherein the outer cylinder shaft and the inner cylinder shaft slide over each other and cause a shape change between a normal balloon shape and an extended balloon shape; and a housing communicating with the lumen of the outer cylinder shaft, and having a small-diameter lumen in the tip side and a large-diameter lumen in the base-end side; wherein the housing has an insertion inlet for insertion of the inner cylinder shaft, and a liquid inlet/outlet.
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公开(公告)号：US20160287323A1
公开(公告)日：2016-10-06
申请号：US14777634
申请日：2014-03-28
发明人： Takahiro Yagi , Motoki Takaoka , Akinori Matsukuma
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/0016 , A61B2018/0022 , A61B2018/00285 , A61B2018/044 , A61B2018/046 , A61B2018/1472 , A61M25/0026 , A61M25/005
摘要： A balloon ablation catheter includes a catheter shaft containing a reinforcement wire in a thick section; a balloon provided at an end of the catheter shaft; and a high-frequency electric current electrode arranged in the balloon; which balloon ablation catheter satisfies L>t, wherein L represents the shortest distance from the surface of the reinforcement wire to the surface of the catheter shaft, and t represents the wall thickness of the thinnest portion of the balloon.
摘要翻译： 球囊消融导管包括导管轴，该导管轴包含厚部分的加强丝; 设置在导管轴的端部处的气囊; 和布置在气球中的高频电流电极; 该气囊消融导管满足L> t，其中L表示从加强线的表面到导管轴的表面的最短距离，t表示球囊最薄部分的壁厚。
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