Single lumen distal perfusion sheath

摘要

A distal perfusion sheath (DPS) is provided for cases where blood perfusion is needed for downstream arteries (distal) to the insertion point of the DPS within the target artery. The ability to provide distal perfusion with the DPS allows the DPS to be positioned in the target artery for long periods without causing lack of blood flow (ischemia) to an extremity that the target artery supplies. In certain embodiments, the DPS can still be used for surgical arterial access while allowing blood flow downstream. In addition, embodiments of the DPS configured with longer perfusion shunts can allow a contra-lateral extremity downstream to a large DPS to have blood flow while the sheath is in place.

主权项

1. A sheath for insertion into an artery, said sheath comprising:
a lumen with a proximal end configured for insertion into said artery, and a distal end that tapers outward; a perfusion shunt in fluid communication with said lumen, said perfusion shunt configured for insertion into a distal portion of said artery beyond said sheath to provide blood flow from a proximal portion of said artery prior to said inserted sheath to said distal portion of said artery; a plurality of guidewires within said lumen; an engagement system with a series of wire-lock engagement points affixed to said distal end for individually engaging each of said plurality of guidewires; and a rotatable hub at said distal end centered on a longitudinal axis of said sheath configured with a hemostatic valve at said center and a slit extending from said hemostatic valve to an outer edge of said hub.