Universal fixator clamp
An external fixation system that uses a torquing apparatus and a universal fixator clamp. The universal fixator clamp comprises a proximal head, a screw plate, a first upper clamp plate, a second upper clamp plate, a spring, a first lower clamp plate, and a second lower clamp plate. The first upper clamp plate and second upper clamp plate define at least one bone pin channel and at least one frame rod channel. The first lower clamp plate and second lower clamp plate define at least one bone pin channel and at least one frame rod channel. A central bolt engages with the screw plate to compress the universal fixator clamp when turned by the torquing apparatus. The torquing apparatus has a plurality of arms that engage with complementary recesses in the proximal head to prevent patients from disengaging the clamp once tightened.
1 . An external orthopedic fixation system comprising:
a torquing apparatus further comprising lateral handles having a plurality of ridges, a proximal head interface having a plurality of arms, and an internal threaded engagement channel;
a universal fixator clamp further comprising a proximal head having a proximal head void with a plurality of recessions, a screw plate, a first upper clamp plate comprising a top bone pin channel and a first curved partial frame rod channel, a second upper clamp plate having a curved bottom bone pin channel and a second curved partial frame rod channel, a spring, a first lower clamp plate having a curved lower bone pin channel and a third curved partial frame rod channel, and a second lower clamp plate having a curved bottom bone pin channel and a fourth curved partial frame rod channel;
wherein the universal fixator clamp is secured with an internal bolt that threads into the screw plate, the internal bolt further comprising a bolt body having a proximal bolt end and a distal bolt end, a head at the distal bolt end, and a threaded body portion at the proximal bolt end, the threaded body portion engaging with the screw plate and extending through the screw plate, and wherein the torquing apparatus causes the screw plate to engage with the threaded body portion during rotation thereby compressing the first upper clamp plate, second upper clamp plate, first lower clamp plate, and second lower clamp plate together;
at least one bone pin inserted into a first bone pin channel or a second bone pin channel with a first bone pin channel formed from the top bone pin channel and bottom bone bin channel and a second bone pin channel formed from the lower pin channel and the bottom bone pin channel; and
at least one frame rod inserted into a frame rod channel with a first frame rod channel formed from the first curved partial frame rod channel in the first upper clamp plate and the second curved partial frame rod channel in the second upper clamp plate and a second frame rod channel formed from the third curved partial frame rod channel in the first lower clamp plate and the fourth curved partial frame rod channel in the second lower clamp plate.
2 . The external orthopedic fixation system of claim 1 wherein the torquing apparatus and the universal fixator clamp are made of plastic.
3 . The external orthopedic fixation system of claim 1 wherein the proximal head further comprises a plurality of ridges on an external face.
4 . The external orthopedic fixation system of claim 1 wherein the threaded body portion of the internal bolt extends the entire length of the internal bolt.
5 . The external orthopedic fixation system of claim 1 wherein the threaded body portion of the internal bolt partially extends from the proximal bolt end towards the distal bolt end.
6 . The external orthopedic fixation system of claim 1 wherein the second upper clamp plate has a planar bottom face and the first lower clamp plate has a planar top face such that when pressure is applied by rotation of the torquing apparatus there is no gap between the planar bottom face and the planar top face.