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公开(公告)号：US20240033475A1
公开(公告)日：2024-02-01
申请号：US18482711
申请日：2023-10-06
发明人： Motasim Sirhan , Benjamyn Serna , Kim Nguyen , John Yan , Matthew Tyler Surber
IPC分类号： A61M25/00
CPC分类号： A61M25/0052 , A61M25/0074 , A61M2202/0014
摘要： An aspiration catheter includes a catheter body having a proximal end, a distal end, and an aspiration lumen therebetween. A distal segment comprising an expandable distal tip of the aspiration catheter comprises a membrane and an expandable supporting structure, such as a scaffold, configured to radially expand the expandable distal tip. The expandable supporting structure may include supporting elements and other features which increase resistance to collapse of the expandable membrane under vacuum or negative pressure applied to aspirate clot through the aspiration lumen in the expanded configuration.
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公开(公告)号：US20230149035A1
公开(公告)日：2023-05-18
申请号：US18156921
申请日：2023-01-19
发明人： Motasim Sirhan , Vinayak Bhat , Benjamyn Serna , Brett Cryer , Kim Nguyen , John Yan
IPC分类号： A61B17/221 , A61M1/00 , A61M25/00
CPC分类号： A61B17/221 , A61M1/77 , A61M25/005 , A61B2017/22079
摘要： Clot aspiration systems intended for removing clot from a blood vessel include an aspiration assembly which will have two or more of the following components: an aspiration catheter, an inner catheter, an intermediate catheter, and an outer catheter, the latter typically being a guiding or other sheath. A transition structure is coupled to a distal end of the aspiration assembly to cover or fill an open distal end of one or more of the components of the aspiration assembly. The transition structure may be configured to facilitate introduction of the aspiration catheter into the patient's vasculature and/or advancement of the aspiration catheter through the vasculature to a target site, such as a cerebral target site which may be occluded with clot, thrombus, or other occlusive material.
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公开(公告)号：US20240260984A1
公开(公告)日：2024-08-08
申请号：US18636086
申请日：2024-04-15
发明人： Motasim Sirhan , Vinayak Bhat , Benjamyn Serna , Samit Mustafa , Brett Cryer , Kim Nguyen , John Yan
IPC分类号： A61B17/221 , A61B17/00 , A61B17/22
CPC分类号： A61B17/221 , A61B2017/00358 , A61B2017/0084 , A61B2017/22079 , A61B2017/2212
摘要： An aspiration catheter for removing clot from a blood vessel includes a catheter body having a scaffold extending distally from a distal end of the body. An aspiration lumen runs from the distal end to a proximal end of the body, and a central clot-receiving passage in the scaffold is contiguous with the aspiration lumen of the catheter body. A vacuum-resistant membrane covers the scaffold and establishes a clot aspiration path from a distal end of the scaffold to a proximal end of the aspiration lumen, in the catheter body so that applying a vacuum to the proximal end of the aspiration lumen can draw clot into the central clot-receiving passage. The scaffold may have a comical configuration, a cylindrical configuration, or a combination thereof, and at least a distal portion of the scaffold is radially expandable from a delivery configuration to an extraction configuration.
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公开(公告)号：US12076504B2
公开(公告)日：2024-09-03
申请号：US18482711
申请日：2023-10-06
发明人： Motasim Sirhan , Benjamyn Serna , Kim Nguyen , John Yan , Matthew Tyler Surber
CPC分类号： A61M25/0052 , A61M25/0074 , A61M2202/0014
摘要： An aspiration catheter includes a catheter body having a proximal end, a distal end, and an aspiration lumen therebetween. A distal segment comprising an expandable distal tip of the aspiration catheter comprises a membrane and an expandable supporting structure, such as a scaffold, configured to radially expand the expandable distal tip. The expandable supporting structure may include supporting elements and other features which increase resistance to collapse of the expandable membrane under vacuum or negative pressure applied to aspirate clot through the aspiration lumen in the expanded configuration.
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