Patent ID: 8167867
Filing Date: 2012-05-01
Classification: A61B,A61M

Abstract:
1. A cannula for use in conducting fluid to or from a body, comprising: a cannula body having a proximal end, a distal end, and a lumen extending between the proximal and distal ends; a first fluid aperture formed on the proximal end; a second fluid aperture formed adjacent the distal end; and a helical reinforcing spring integrally provided in the cannula body; wherein a first portion of the cannula body has a predefined non-circular cross-section with a major cross-sectional axis and a minor cross-sectional axis, the length of the major axis being greater than the length of the minor axis and wherein the lumen extending through the first portion of the cannula body has a substantially similar cross-sectional shape as the cross section of the first portion of the cannula body.