公开(公告)号：US20240180700A1

公开(公告)日：2024-06-06

申请号：US18437821

申请日：2024-02-09

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Thanh Huy Le ,  Tung T. Le ,  Sovanpheap Mak ,  Alpana Kiran Gowdar ,  Richard D. White ,  Sonny Tran

IPC: A61F2/24 ,  A61M25/00 ,  A61M39/06 ,  B29C65/00 ,  B29D23/00

CPC classification number: A61F2/2436 ,  A61M25/0009 ,  B29C65/00 ,  B29D23/00 ,  A61F2250/0003 ,  A61F2250/0098 ,  A61M39/06 ,  A61M2039/0626

Abstract: 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.

公开(公告)号：US20240099843A1

公开(公告)日：2024-03-28

申请号：US18531355

申请日：2023-12-06

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： David Maimon ,  Erik Bulman ,  Sonny Tran ,  Ilan Tamir ,  Jeong Soo Lee ,  Maxwell Harrison Fine ,  Nasser William Saleh ,  Sovanpheap Mak ,  Tien Thi Nguyen

IPC: A61F2/24

CPC classification number: A61F2/2436 ,  A61F2230/0091

Abstract: 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.

公开(公告)号：US20180368979A1

公开(公告)日：2018-12-27

申请号：US16010744

申请日：2018-06-18

Applicant: Edwards Lifesciences Corporation

Inventor： Thanh Huy Le ,  Tung T. Le ,  Sovanpheap Mak ,  Alpana Kiran Gowdar ,  Richard D. White ,  Sonny Tran

IPC: A61F2/24

Abstract: 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.