Method of preventing the dislodgment of a stent-graft

Details Method of preventing the dislodgment of a stent-graft Method of preventing the dislodgment of a stent-graft

Filed on

2005-08-16

Date issued

2005-08-16

Examiner

Prebilic, Paul B. (Department: 3738)

Patent Class

Prosthesis (i.e., artificial body members), parts thereof, or ai

SubClass

Arterial prosthesis

SubSubClass

Stent in combination with graft

Other Related Categories

C623S001230, C623S903000

Type

Reexamination Certificate

Status

active

Patent number

06929659

Description

ABSTRACT:
Endoluminal stent-grafts include several features which restrict dilation subsequent to installation but which allow the stent-grafts to be installed in the same manner as a conventional stent-graft. According to one embodiment, sutures are attached to an expanded stent-graft. The suture material is preferably braided PET or polypropylene and sutures are interwoven into the stent at substantially regular intervals. A second embodiment utilizes a band material in lieu of suture material. A third embodiment utilizes a warp knit tubular sheath with inlay yarn. The warp knit tubular sheath with inlay yarn may also act as the graft material. The invention includes a method of using these stent-grafts to prevent the dislodgment of an endoluminal stent-graft after deployment. The method includes the step of determining the maximum stent-graft diameter and related size of dilation restriction means to prevent excessive stent-graft shortening after initial deployment.

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