US 9,439,698 B2 · Cable fixation device

Abstract

Various forms of a cable fixation device, instrumentation, kit, and methods useful for repairing the skeletal system are introduced. The system utilizes a clamp housing fixing a butt end of a surgical cable therein. In an operative configuration the cable is looped around a damaged bone segment and reentered through a lock aperture in the clamp housing then through a collet and lock cap residing within the lock aperture. The cable loop and each aforementioned component comprise a central axis aligned within a single plane. A sliding interface situated between the lock cap and collet prevent twisting of the surgical cable. The locking mechanism is non-destructive to the cable despite repeated unlocking and relocking of the fixation device. The axis for tensioning of the cable is coincident with the locking axis. A counter torque instrument has a torsional input shaft generally perpendicular to the elongated axis of the instrument.

Claims25

Dependent claims

A counter torque locker and cable clamp for securing a surgical cable within a clamp housing comprising:

a cable clamp housing;
a lock of a cable fixation device;
an elongated clamp base;
a control arm extending from said elongated clamp base for alignment of said clamp base with said cable clamp housing;
a cannulated worm shaft at least partially housed within said clamp base;
said cannulated worm shaft comprising a drive boss formed thereon for engagement with the lock of said cable fixation device;
a worm gear on said cannulated worm shaft;
a worm rod oriented generally perpendicular to said worm shaft and at least partially housed within said clamp base;
a worm helix on said worm rod;
wherein said worm helix is meshed with said worm gear.

7 more elements

Dependencies are inferred from the claim text.

Cable fixation device

Life of this patent

Cable fixation device

Life of this patent

Abstract

Claims25