Patent ID: 9681877
Date: 2017-06-20
CPC Classifications: A61B

Claim:
1. An operating handle providing for linear reciprocating movement to an instrument cartridge having means for receiving said movement, the handle having an axis and comprising a housing, the housing defining a socket for receiving and holding the cartridge in the handle, handle lever arms for initiating reciprocating movement, a linear translator mounted within the housing for generating linear reciprocating motion of fixed excursion, the linear translator connected to said cartridge whereby said motion is transmitted to the cartridge, the linear translator having twin cam oval bodies, each cam oval body defined by an endless closed wall with open interior space defining a cam slot, each handle lever arm having a cam pin connected to the cam slot of one of the twin cam oval bodies through which said handle lever arms move said linear translator along said axis, the linear translator having an anti-backup beam, a main spring mounted on the anti-backup beam for urging the linear translator to a normal position in which the handle lever arms are in a release operating condition, anti-backup springs cooperating with the anti-backup beam for limiting handle lever arm movement to full pull and release strokes whereby manually squeezing the handle lever arms draws the linear translator through linear motion of fixed excursion against a main spring force, and by release of the lever arms, the main spring force urges the linear translator in a return motion of fixed excursion to the normal position.