Bone fixation device

A bone fixation device, comprising:

• a rail body housing comprising a first end portion, a second end portion, and a rail channel extending along a longitudinal axis of the rail body housing, wherein the rail channel is defined between the first end portion and the second end portion;
• a movable clamp assembly movably coupled to the rail body housing within the rail channel, the position of the movable clamp assembly within the rail channel being adjustable;
• a lead bolt extending parallel to the longitudinal axis within the rail body housing, wherein the lead bolt is threadably engaged with the movable clamp assembly, and wherein rotation of the lead bolt causes the movable clamp assembly to move along the longitudinal axis within the rail body housing;
• and
• a rotational index indicator coupled to the lead bolt, the rotational index indicator audibly and/or palpably indicating incremental rotation of the lead bolt and incremental translation of the movable clamp assembly;
• wherein the lead bolt comprises at least one groove formed in an exterior surface of the lead bolt, and the rotational index indicator comprises:
• a pin;
• and
• a biasing element coupled to the pin, the biasing element biasing the pin into engagement with the at least one groove, wherein rotation of the lead bolt causes the pin to engage and disengage from the at least one groove, engagement between the pin and the at least one groove generating an audible and/or a palpable response.

A bone fixation device for treating deformation of bones, comprising:

• a rail body housing comprising a top portion, bottom portion, first end portion, second end portion, and a rail channel extending along a longitudinal axis of the rail body housing, wherein the rail channel is defined between the top portion, bottom portion, first end portion, and second end portion, the bottom portion of the rail body housing comprising a lead bolt;
• a movable clamp assembly movably coupled within the rail body housing for securing two first bone fasteners in a first desired orientation, the movable clamp assembly being translatable along the lead bolt within the rail body housing, the movable clamp assembly comprising a carriage portion that is threadably engaged on the lead bolt and a clamping mechanism that is adapted to secure the first bone fasteners, wherein the clamping mechanism comprises two semi-spherical collets supported within two sockets, wherein the semi-spherical collets are independently adjustable relative to each other, wherein the first bone fasteners extend through a central channel in each of the semi-spherical collets, and wherein a central axis of the central channel intersects the longitudinal axis of the rail body housing;
• a fixed clamp assembly coupled within the rail body housing for securing two second bone fasteners in a second desired orientation, the fixed clamp assembly being translationally fixed within the rail body housing, the fixed clamp assembly comprising a clamping mechanism that is adapted to secure the second bone fasteners, wherein the clamping mechanism comprises two semi-spherical collets supported within two sockets, wherein the semi-spherical collets are independently adjustable relative to each other, wherein the second bone fasteners extend through a central channel in each of the semi-spherical collets;
• and
• a rotational index indicator that audibly and/or palpably indicates rotation of the lead bolt, wherein the rotational index indicator is integrated with the rail body housing and coupled to the lead bolt.