FISTULA GRAFTS AND RELATED METHODS AND SYSTEMS USEFUL FOR TREATING GASTROINTESTINAL AND OTHER FISTULAE

摘要

Described are medical graft products, systems, and methods useful for treating fistulae, particularly enterocutaneous fistulae. Certain products of the invention are configured to have portions residing in and around a primary fistula opening in a wall of the alimentary canal. One such product includes a biocompatible graft body which is configured to block at least the primary opening. The graft body includes a capping member connected to an elongate plug member. The capping member is configured to contact portions of the alimentary canal wall adjacent to the primary opening, and the elongate plug member is configured to extend into at least a portion of the fistula. A graft product of this sort may be particularly adapted to allow a portion of the capping member to be positioned alongside an exterior, lateral surface of the plug member, e.g., when placed in a delivery device lumen. Such a capping member may be hingedly or non-hingedly coupled to the elongate plug member.

主权项

1. A medical graft device useful for treating a fistula having at least a primary opening in a bodily structure wall and a fistula tract extending from the primary opening, the medical graft device comprising:
a biocompatible graft body including a capping member and an elongate plug member, the elongate plug member extending from the capping member and configured to fill at least a portion of the fistula tract; and a retaining system for retaining the capping member in association with the plug member, the retaining system including a first retaining member and a second retaining member, the first retaining member configured for insertion through an aperture in the capping member and into a generally longitudinal, first passage in the plug member, the second retaining member configured for insertion into a generally lateral, second passage in the plug member, wherein the first retaining member and the second retaining member are configured to engage one another in the plug member for maintaining the first retaining member and the second retaining member in the plug member.