Bidirectional vascular introducer sheath

摘要

A vascular introducer sheath includes a sheath body having an interior lumen for accommodating a dilator. The vascular introducer further includes a guidewire positioning means operatively associated with the interior lumen of the sheath body for directing a guidewire in either a vascular direction or an arterial direction within a venous system.

主权项

1. A vascular introducer sheath comprising:
a) a sheath body having a j-shaped configuration and defining an interior lumen in communication with an open distal end of the sheath body and an aperture; b) a rigid J-shaped tubular body operatively associated with the interior lumen of the sheath body configured and adapted to direct a guidewire in either a first direction through the open distal end into a flowing blood vessel or a second opposite direction through the aperture opposite the open distal end into the blood vessel within a venous system wherein the guidewire may be moved in either an arterial or vascular direction; and c) a sealing and anchoring means for sealing an upper wall of the blood vessel and anchoring a portion of the sheath body just below the upper wall of the blood vessel to the upper wall while not occluding the blood flow within the blood vessel, wherein the means for sealing and anchoring includes an annular balloon anchor operatively associated with an outward portion of the sheath body above a curved joint portion of the J-shaped tubular body and an annular disk anchor operatively associated with an outward portion of the sheath body mounted latitudinally above the annual balloon anchor such that the annular balloon anchor and annular disk anchor are configured and adapted to anchor the sheath body with respect to an upper wall of the blood vessel.