Patent ID: 9585648
Date: 2017-03-07
CPC Classifications: A61B,A61M

Claim:
1. An operative dilator having an elongated body, said elongated body having a length spanning the distance above a patient's skin surface at a proximal end portion and juxtaposed a surgical area at a distal end portion, said elongated body having a central passageway that extends the entire length of said dilator from said upper proximate end to said opposing lower distal end, said outer wall including a first pair of opposing semi elliptical surfaces spanning the length of said elongated body from said proximal end to said opposing distal end and a second pair of opposing semi elliptical surfaces spanning the length of said elongated body from said proximal end to said opposing distal end, together said first pair of opposing semi elliptical surfaces and said second pair of opposing semi elliptical surfaces forming a contiguous elongated body outer surface; said distal end portion having concave surfaces which extend outwards in a curved fashion from the semi elliptical surfaces.