Patent ID: 7909841
Filing Date: 2011-03-22
Classification: A61B

Abstract:
1. Co-axial actuated scissors for use in a surgical procedure of cutting an immediately adjacent and parallel longitudinal anatomic structure in a plane normal to a main longitudinal axis extending through a working body of said scissors, comprising: a first scissor portion including an inner elongated rotating member and a first handle attached to said inner elongated rotating member; a second scissor portion including a distally and laterally open furrow or groove of elongated C-shaped cross-section and a second handle attached adjacent to said distally and laterally open furrow or groove of C-shaped cross-section; said elongated C-shaped second portion including a distally tally and laterally open furrow or groove for allowing the telescopic slidable assembly of said inner rotating member within said elongated C-shaped second portion so that both said inner rotating member and said elongated C-shaped second portion are able to coaxially rotate relative to each other along their shared and identical main longitudinal axis during use of said scissors in said surgical procedure; said telescopic assembly of said inner rotating member to said elongated C-shaped second portion creating a working body that includes a proximal end adjacent to the attachment of said first and said second handles to said inner rotating member and said elongated C-shaped second portion and an opposite distal end; said working body defining said main longitudinal axis that extends through said concentrically assembled inner rotating member and said elongated C-shaped second portion; said first handle and said second handle being offset from said main longitudinal axis at an angle that is between 0 degrees and 90 degrees; a pair of cutting jaws located at said distal end of said working body with one cutting jaw mounted to said inner rotating member for rotational movement therewith and the other cutting jaw mounted to said elongated C-shaped member for rotational movement therewith and the cutting action of said cutting jaws occurring normal to said main longitudinal axis; detent positioning means for determining surgical operational positions of said scissors that includes a fully open position, an anatomical structure non-contact encompassing position and a fully closed position whereby the engagement of said detent positioning means is concurrent with the movements of said first and said second handles, said coaxial rotations of said inner rotating member and said elongated C-shaped member and the movement of said cutting jaws whereupon movement of said first and said second handles to said fully open position allows a surgeon to place said scissors over and in proximity to said anatomical structure, movement of said first and said second handles to said anatomical structure non-contact encompassing position causes said cutting jaws to fully surround but not touch said anatomical structure and while simultaneously allowing said surgeon to otherwise longitudinally and frictionessly slide and push said scissors in no other device-related dimensionally-restricted fashion along said cross-sectionally encompassed anatomical structure to determine the optimum surgical cutting position; and, closure of said first and said second handles upon each other results in the further coaxial rotation of said inner rotating member and said elongated C-shaped member and concomitant rotation of said cutting jaws for completely severing said anatomical structure.