Patent ID: 9492194
Filing Date: 2016-11-15
CPC Classification: A61B,A61F,A61M

Claim Text:
1. A dilation introducer for orthopedic surgery comprising: a first dilator tube having a distal portion and a proximal portion, the outer surface of the first dilator tube having a first outer radius centered around a first longitudinal axis, and a first longitudinal lumen having a first inner radius; and a second dilator tube having a distal portion and a proximal portion, the outer surface of the second dilator tube having a second outer radius centered around a second longitudinal axis, a second longitudinal lumen having a second inner radius centered around the first longitudinal axis, the distal portion of the second dilator tube having a generally semi-annular cross-section, the second longitudinal lumen configured for removably receiving the first dilator tube for slidable movement within the second longitudinal lumen, the second dilator tube comprising a cutting surface and a side opposite the cutting surface, wherein the second longitudinal lumen is between the cutting surface and the side opposite the cutting surface, wherein the second dilator tube comprises a cutting surface extending less than the circumference of the second dilator tube, wherein the first longitudinal axis is parallel to and laterally offset from the second longitudinal axis.