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公开(公告)号：US20170113018A1
公开(公告)日：2017-04-27
申请号：US15140646
申请日：2016-04-28
Applicant: ASAHI INTECC CO., LTD.
Inventor： Hirotomo SHIMIZU , Masatomo ISHIKAWA
IPC: A61M25/00
CPC classification number: A61M25/0052 , A61M25/005 , A61M25/008 , A61M2025/0047
Abstract: A catheter includes a catheter body having a lumen and a resin front end tip having a lumen that is in communication with the lumen of the catheter body and that is attached to the front/distal end of the catheter body. The catheter body and front end tip further include a coil body and/or a braid such that the coil body and/or braid are arranged along the lumen. Additionally, the catheter further includes a reinforcement body covering the coil body and/or the braid in the front end tip.
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公开(公告)号：US20180056037A1
公开(公告)日：2018-03-01
申请号：US15462082
申请日：2017-03-17
Applicant: ASAHI INTECC CO., LTD.
Inventor： Hirotomo SHIMIZU
CPC classification number: A61M25/0052 , A61M25/001 , A61M25/005 , A61M25/0069 , A61M25/008 , A61M25/0108
Abstract: A catheter having a catheter shaft and a tip. The catheter shaft includes an inner layer, a first reinforcing layer disposed around an outer periphery of the inner layer, an intermediate layer, a second reinforcing layer disposed around an outer periphery of the intermediate layer, and an outer layer that covers the second reinforcing layer. The tip includes a proximal end portion that extends in an axial direction of the catheter and is joined to at least the intermediate layer and the outer layer, between the first reinforcing layer and the second reinforcing layer. The proximal end portion increases the joining strength between the intermediate layer and the tip and the joining strength between the outer layer and the tip. As a result, it is possible to prevent the tip from easily detaching from the catheter shaft.
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公开(公告)号：US20240358348A1
公开(公告)日：2024-10-31
申请号：US18768032
申请日：2024-07-10
Applicant: ASAHI INTECC CO., LTD.
Inventor： Yoshiki KATO , Hirotomo SHIMIZU , Yukiko HASE
CPC classification number: A61B8/12 , A61B8/4254 , A61B8/445 , A61M25/09
Abstract: A catheter includes a shaft part having a first shaft and a second shaft. The first shaft is a cylindrical member having a guide wire lumen into which a guide wire is inserted. The second shaft is a cylindrical member having an imaging lumen into which an imaging device for acquiring an image of an interior of a living body lumen is inserted, and is disposed alongside the first shaft. In a first region from a first position at a distal end portion of the shaft part to a second position further on a proximal end side than the first position, the second shaft is not joined to the first shaft. In a second region that is continuous with the first region and that is further on the proximal end side than the first region, the second shaft is joined to the first shaft.
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公开(公告)号：US20190184135A1
公开(公告)日：2019-06-20
申请号：US16282686
申请日：2019-02-22
Applicant: ASAHI INTECC CO., LTD.
Inventor： Hirotomo SHIMIZU
CPC classification number: A61M25/0052 , A61M25/001 , A61M25/005 , A61M25/0069 , A61M25/008 , A61M25/0108
Abstract: A catheter having a catheter shaft and a tip. The catheter shaft includes an inner layer, a first reinforcing layer disposed around an outer periphery of the inner layer, an intermediate layer, a second reinforcing layer disposed around an outer periphery of the intermediate layer, and an outer layer that covers the second reinforcing layer. The tip includes a proximal end portion that extends in an axial direction of the catheter and is joined to at least the intermediate layer and the outer layer, between the first reinforcing layer and the second reinforcing layer. The proximal end portion increases the joining strength between the intermediate layer and the tip and the joining strength between the outer layer and the tip. As a result, it is possible to prevent the tip from easily detaching from the catheter shaft.
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