TRANSCATHETER VALVE IMPLANTATION ACCESS SHEATHS

摘要

An introducer provides access to a surgical site in a patient. The introducer includes a proximal housing configured to be positioned outside the patient and a sheath extending from the proximal housing to a distal end of the introducer. One or more handles may be housed at least partially within the proximal housing and configured to translate axially in proximal and distal directions with respect to the proximal housing. A securing element may be slideably coupled to the sheath and may have a flange extending radially outwardly from the sheath. A radially expanding portion of the sheath may have a first edge, a second edge, and a middle section extending from the first edge to the second edge. The sheath portion may have a rolled configuration in which the middle section at least partially overlies the first edge, and the second edge at least partially overlies the middle section.

主权项

1. An introducer for providing access to a surgical site in a patient comprising:
a proximal housing configured to be positioned outside the patient; and a sheath having a first portion coupled to the proximal housing and a second portion extending distally of the proximal housing, the second portion having a first edge, a second edge, and a middle section extending from the first edge to the second edge, wherein the second portion has a rolled configuration in which the middle section at least partially overlies the first edge, and the second edge at least partially overlies the middle section.