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公开(公告)号：US20230355389A1
公开(公告)日：2023-11-09
申请号：US18354566
申请日：2023-07-18
IPC分类号： A61F2/24
CPC分类号： A61F2/2436 , A61F2002/9623
摘要： An expandable sheath including an elongated inner member defining a central lumen extending therethrough. The inner member includes a first circumferential portion including a first and second longitudinal edges, and a second circumferential portion extending between the first and second longitudinal edges. The wall thickness of the first circumferential portion is greater than the wall thickness of the second circumferential portion. The elongated inner member is configured to transition from an unexpanded configuration to an expanded configuration in response to a radially outward force on an inner surface of the central lumen. In the unexpanded configuration, the elongated inner member is creased proximate the first and second longitudinal edges into a folded configuration such that the second circumferential portion is positioned at least partially radially inward of the first circumferential portion.
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公开(公告)号：US20240123182A1
公开(公告)日：2024-04-18
申请号：US18531307
申请日：2023-12-06
发明人： Erik Bulman , David Maimon , Sonny Tran , Ilan Tamir , Jeong Soo Lee , Maxwell Harrison Fine , Nasser William Saleh , Sovanpheap Mak , Tien Thi Nguyen
CPC分类号： A61M25/0023 , A61L29/085 , A61M25/0045 , A61M25/0052 , A61M2025/0024 , A61M2025/0047 , A61M2025/006 , A61M2205/02
摘要： Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a tubular inner liner wound in a spiral configuration such that a plurality of protrusions is disposed in an overlapping portion of the sheath. The disclosed sheath is configured to expand from a predetermined rest diameter dr to an expanded diameter de during application of a radial outward force by passage of a medical device through the sheath.
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公开(公告)号：US20240099842A1
公开(公告)日：2024-03-28
申请号：US18531202
申请日：2023-12-06
发明人： Erik Bulman , David Maimon , Sonny Tran , Ilan Tamir , Jeong Soo Lee , Maxwell Harrison Fine , Nasser William Saleh , Sovanpheap Mak , Tien Thi Nguyen
IPC分类号： A61F2/24
CPC分类号： A61F2/2436 , A61F2210/0076
摘要： Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a tubular inner liner wound in a spiral configuration at least a portion of the outer surface of the sheet comprises a plurality of bonding sites that are at least partially embedded within the sheet and disposed such that the outer surface of the sheet in the overlapping portion is substantially free of the plurality of bonding sites.
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公开(公告)号：US11931259B2
公开(公告)日：2024-03-19
申请号：US16865656
申请日：2020-05-04
发明人： Thanh Huy Le , Tung T. Le , Sovanpheap Mak , Alpana Kiran Gowdar , Richard D. White , Sonny Tran
CPC分类号： A61F2/2436 , A61M25/0009 , B29C65/00 , B29D23/00 , A61F2250/0003 , A61F2250/0098 , A61M39/06 , A61M2039/0626
摘要： Disclosed herein are expandable introducer sheaths and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a delivery system for an implant, then return to a non-expanded state after the passage of the device. The sheath includes a foldable inner member having a detached flap structure at its distal tip that facilitates expansion of the sheath lumen to increased diameters, and an elastomeric distal end that reduces push and retrieval forces therethrough. The sheath can include a hemostasis seal on its proximal end to prevent the leakage of blood out of the sheath and prevent ballooning of outer layer of the sheath.
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公开(公告)号：US20200261227A1
公开(公告)日：2020-08-20
申请号：US16865656
申请日：2020-05-04
发明人： Thanh Huy Le , Tung T. Le , Sovanpheap Mak , Alpana Kiran Gowdar , Richard D. White , Sonny Tran
IPC分类号： A61F2/24
摘要： Disclosed herein are expandable introducer sheaths and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a delivery system for an implant, then return to a non-expanded state after the passage of the device. The sheath includes a foldable inner member having a detached flap structure at its distal tip that facilitates expansion of the sheath lumen to increased diameters, and an elastomeric distal end that reduces push and retrieval forces therethrough. The sheath can include a hemostasis seal on its proximal end to prevent the leakage of blood out of the sheath and prevent ballooning of outer layer of the sheath.
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公开(公告)号：US20240180700A1
公开(公告)日：2024-06-06
申请号：US18437821
申请日：2024-02-09
发明人： Thanh Huy Le , Tung T. Le , Sovanpheap Mak , Alpana Kiran Gowdar , Richard D. White , Sonny Tran
CPC分类号： A61F2/2436 , A61M25/0009 , B29C65/00 , B29D23/00 , A61F2250/0003 , A61F2250/0098 , A61M39/06 , A61M2039/0626
摘要： Disclosed herein are expandable introducer sheaths and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a delivery system for an implant, then return to a non-expanded state after the passage of the device. The sheath includes a foldable inner member having a detached flap structure at its distal tip that facilitates expansion of the sheath lumen to increased diameters, and an elastomeric distal end that reduces push and retrieval forces therethrough. The sheath can include a hemostasis seal on its proximal end to prevent the leakage of blood out of the sheath and prevent ballooning of outer layer of the sheath.
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公开(公告)号：US20240099843A1
公开(公告)日：2024-03-28
申请号：US18531355
申请日：2023-12-06
发明人： David Maimon , Erik Bulman , Sonny Tran , Ilan Tamir , Jeong Soo Lee , Maxwell Harrison Fine , Nasser William Saleh , Sovanpheap Mak , Tien Thi Nguyen
IPC分类号： A61F2/24
CPC分类号： A61F2/2436 , A61F2230/0091
摘要： Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a tubular inner liner wound in a helical scroll slidable configuration. The disclosed sheath is configured to expand from a predetermined rest diameter dr to an expanded diameter de during the application of a radial outward force by passage of a medical device through the sheath.
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公开(公告)号：US20180368979A1
公开(公告)日：2018-12-27
申请号：US16010744
申请日：2018-06-18
发明人： Thanh Huy Le , Tung T. Le , Sovanpheap Mak , Alpana Kiran Gowdar , Richard D. White , Sonny Tran
IPC分类号： A61F2/24
摘要： Disclosed herein are expandable introducer sheaths and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a delivery system for an implant, then return to a non-expanded state after the passage of the device. The sheath includes a foldable inner member having a detached flap structure at its distal tip that facilitates expansion of the sheath lumen to increased diameters, and an elastomeric distal end that reduces push and retrieval forces therethrough. The sheath can include a hemostasis seal on its proximal end to prevent the leakage of blood out of the sheath and prevent ballooning of outer layer of the sheath.
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公开(公告)号：US20240100297A1
公开(公告)日：2024-03-28
申请号：US18531261
申请日：2023-12-06
发明人： Sonny Tran , Ilan Tamir , Jeong Soo Lee , Maxwell Harrison Fine , Nasser William Saleh , Sovanpheap Mak , Tien Thi Nguyen , Erik Bulman , David Maimon
CPC分类号： A61M25/0023 , A61F2/2427 , A61M2025/0024
摘要： Various systems, devices, and methods are described herein pertaining to expandable sheaths. Sheath aspects are described that include a flexible sheath tip that is expandable and bendable. In some aspects, the sheath includes a radially expandable proximal end and a radially expandable distal end. In some aspects, the sheath tip includes a plurality of layers that expand to accept a medical device traveling axially and bi-directionally therethrough with minimal deformation of the sheath tip.
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公开(公告)号：US20230069245A1
公开(公告)日：2023-03-02
申请号：US17822689
申请日：2022-08-26
发明人： Sonny Tran , Jeong Soo Lee , Nasser William Saleh , Ilan Tamir , Daniel J. Scherb , Maxwell Harrison Fine , Alpana Kiran Gowdar , Tri D. Tran , Neal H. Avery , Sarah Ghanbari , Uy D. Trinh , Sovanpheap Mak , Erik Bulman , Raymond Mercado
摘要： Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a variable diameter inner liner wound in a spiral slidable configuration and an outer layer. The disclosed sheath is configured to expand from a predetermined rest diameter dr to an expanded diameter de during application of a radial outward force by passage of a medical device through the sheath.
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