Single or double-shank cutting loop device for resectoscopes

Claim 1

An electrical surgical instrument for resection, comprising: a. shank means having a proximal and a distal end and comprising two arms each having insulation along the length thereof, b. two parallel wires respectively carried in the insulation and terminating in two parallel single cutting loops of wire supported by said arms at the distal end of the shant means, remote from the surgeon, said cutting loops lying respectively in planes spaced a predetermined distance from each other normal to the axis of the shank means and c. means for connecting said cutting loops to a high frequency current source, including; i. two conductors, each connected to a respective one of said cutting loops and passing through a respective one of said arms, and ii. two conductive contacts carried by said shank means at the opposite proximal end thereof, and each connected to a respective one of said conductors, whereby the more proximal of said cutting loops can be connected to the live pole of said high frequency source and the more distal of said cutting loops can be connected to the neutral pole of said source.