Patent ID: 7766898
Filing Date: 2010-08-03
Classification: A61M

Abstract:
1. An introducer sheath, the introducer sheath having a main lumen which is configured to allow the passage of a guidewire, medicine or other instruments or fluids into the vasculature of a patient while maintaining hemostasis at the vascular insertion site, the introducer sheath comprising: an introducer sheath body comprising a hub of the introducer sheath, the introducer sheath body having a sidewall which defines a lumen of the introducer sheath body, the introducer sheath body adapted to be positioned external to the patient; an introducer sheath shaft coupled to the introducer sheath body and extending distally from the introducer sheath hub, the introducer sheath shaft having a lumen which is in fluid communication with the lumen of the introducer sheath body, the introducer sheath shaft adapted to be advanced into the vasculature of the patient; a seal adapted to be positioned within the introducer sheath body to maintain hemostasis of the introducer sheath body while allowing a guide wire or other medical instrument to be introduced through the lumen of the introducer sheath body into the lumen of the introducer sheath shaft and into the vasculature of the patient; side port body linked to the sidewall of the introducer sheath hub, the side port body being in fluid communication with the main lumen of the introducer sheath hub wherein the side port body includes a non-circular internal bore positioned internal to the side port body and in communication with a lumen of the side port body, the internal bore operably coupled to the main lumen of the introducer sheath hub, wherein a cross-section of the non-circular internal bore has a minimum transverse dimension that is smaller than a diameter of an object to be introduced into the main lumen of the introducer sheath such that entry of the object into the non-circular internal bore is prevented and wherein an overall cross-sectional area of the cross-section of the non-circular internal bore is greater and allows a greater amount of fluid flow than a circular cross-sectional area having a diameter that is the same as the minimum transverse dimension of the non-circular internal bore.