ORTHOPEDIC TRIGGER APPARATUS

摘要

The present invention is an orthopedic trigger apparatus including a rack assembly, a trigger housing assembly and a trigger assembly. The rack assembly includes a linear rack rotatably connected to a first handle of an orthopedic instrument. The trigger housing assembly includes a trigger housing connected to a second handle of the orthopedic instrument, with a rack engagement cylinder and a spring enclosed within the trigger housing. The rack engagement cylinder includes a toothed rack. The spring contacts a second surface of the toothed rack stop, biasing a first pawled surface into meshing with the rack and preventing the rack from sliding through the trigger housing in more than one direction. Actuating the trigger assembly causes an actuator protrusion on the trigger to press against the rack engagement cylinder, moving the first pawled surface of the toothed rack stop away from the rack and allowing the rack to slide freely.

主权项

1. An orthopedic trigger apparatus comprising:
a rack assembly comprising:
a linear rack having a plurality of rack teeth anda handle pin rotatably connecting said linear rack to a first handle; a trigger housing assembly comprising
a trigger housing having a plurality of rack apertures, wherein a plurality of housing pins connect said trigger housing to a second handle,a rack engagement cylinder slidably enclosed within said trigger housing and having a plurality of cylinder apertures and a toothed rack stop, wherein a connector pin connects said rack engagement cylinder to said toothed rack stop, wherein said a first pawled surface of said toothed rack stop meshes with said plurality of rack teeth, anda spring enclosed within said trigger housing and contacting a second surface of said toothed rack stop, wherein said spring biases said first pawled surface of said toothed rack stop into meshing with said plurality of rack teeth; and a trigger assembly comprising
trigger having an actuator protrusion and a stop protrusion, wherein said actuator protrusion radially extends from a trigger axis of rotation a greater distance than said stop protrusion radially extends from said trigger axis of rotation, anda trigger pin rotatably connecting said trigger to said trigger housing.