Surgical implant devices and methods for their manufacture and use

摘要

This disclosure is directed toward sealable and repositionable implant devices that are provided with one or more improvements that increase the ability of implants such as endovascular grafts to be precisely deployed or re-deployed, with better in situ accommodation to the local anatomy of the targeted recipient anatomic site, and/or with the ability for post-deployment adjustment to accommodate anatomic changes that might compromise the efficacy of the implant.

主权项

1. An endograft implant, comprising:
a tubular implant body comprising an elastic end and an implant lumen, the elastic end comprising a sealable circumferential collar having a diameter; a variable sealing device contained within the sealable circumferential collar, the variable sealing device being operable to reversibly vary the diameter of the sealable circumferential collar; a control lead releasably, directly, and mechanically connected to the variable sealing device for reversibly varying the diameter of the variable sealing device when the control lead is rotated and; a plurality of retractable retention tines pivotally mounted within the variable sealing device such that, when the control lead is rotated to expand the diameter of the sealable circumferential collar, the retractable retention tines are exposed outwardly from the variable sealing device to engage an anatomic lumenal wall adjacent the elastic end and, when the control lead is rotated to reduce the diameter of the sealable circumferential collar, the retractable retention tines withdraw inwardly into the variable sealing device.