Patent ID: 7540873

Claim:
A four function microsurgery instrument for vessel dilation, irrigation, aspiration and cauterization comprised of: a) a body that is dimensioned to be held in user's palm having front, back, side, top and bottom regions; b) a first and second side arm for which each: i) extends from the body in a direction away from the front region and is oppositely opposed to the other side arm; ii) is fabricated from a resilient and insulative material and contains an elongated electrical conductor that runs laterally through the sidearm and iii) terminates in a dilation tip that has an electrical conducting surface which is in electrical communication with the elongated electrical conductor, such that the dilation tips of the first and second side arms are in a spaced apart relationship with a gap there between and a user can squeeze and release the side arms to adjust the size of this gap; c) a power control and transmission system comprised of a power cable means that is in electrical communication with the elongated conductors of the first and second side arms and extends from the body in a direction away from the back region to a foot pedal switch whereby electric power is supplied for bipolar cauterization at the dilation tips; d) a common conduit extending from the body in a direction away from the front region that delivers irrigation-fluid and aspiration-suction in proximity to the dilation tips e) an irrigation-fluid and aspiration-suction control and transmission system comprised of (i) a plunger valve extending from the body in a direction away from a first side arm in a plane that passes through the two side arms, positioned for actuation by a user and that is in fluid communication with the common conduit and (ii) a fluid communication means that is in fluid communication with the plunger valve and extends from the body in a direction away from the back region whereby irrigation-fluid and aspiration-suction are supplied and f) a thumb/finger tab obtrusively projecting from a second side arm and positioned to enhance ergonomics when actuating the plunger valve.