Grooved crimp with a set screw
View Patent ↗A device for binding a cable about a fractured bone to stabilize a fracture comprises a slot including a distal opening sized to receive an enlarged end of a cable and a proximal opening sized to permit the cable to slide therethrough while preventing the enlarged end from passing therethough and a bore sized to slidably receive the cable, the bore extending to a proximal opening in combination with a locking element channel extending to a distal end opening into the bore and a locking element movable into a locking position in which a distal end of the locking element extends into the bore to engage a portion of the cable received therein and lock the cable in a desired position within the bore.
1. A device for binding a cable about a fractured bone to stabilize a fracture comprising:
a body portion having a slot extending in the body portion, the body portion having a bone facing surface, an outer surface opposite the bone facing surface and first and second side surfaces extending therebetween, the first side surface being opposite the second side surface, the slot including a distal opening sized to receive an enlarged end of the cable and a proximal opening sized smaller than the distal opening to permit the cable to slide therethrough while preventing the enlarged end from passing therethrough and a side opening, opening the slot to the outer surface between the distal opening and the proximal opening;
a bore extending in the body portion between a distal bore opening formed in the first side surface and a proximal bore opening, opening into a distal length of the slot, the distal bore opening being axially separated from the outer surface, the bore being sized to slidably receive the cable;
a locking element channel extending in the body portion from a proximal locking channel opening formed in the second side surface to a distal end opening into the bore; and
a locking element movable into a locking position in the locking element channel in which a distal end of the locking element extends into the bore to engage a portion of the cable received therein and lock the cable in a desired position within the bore, the proximal opening of the slot being dimensioned so that, when both the enlarged end and a proximal length of the cable are simultaneously positioned within the slot, a second end of the cable is insertable through the slot and out of the proximal opening.
2. The device of claim 1 , wherein a proximal end of the slot is offset toward a bone facing side of the of the device relative to the bore.
3. The device of claim 2 , wherein the proximal end of the slot is offset toward a bone facing side of the device relative to the bore by a distance at least equal to a profile of an enlarged distal end of a cable to be used with the device.
4. The device of claim 3 , wherein the slot slopes toward an outer side of the device opposite the bone facing side thereof toward a distal end of the slot.
5. The device of claim 4 , wherein the slot extends substantially in a common plane with an axis of the bore.
6. The device of claim 1 , wherein the bore is offset laterally from the slot.
7. The device of claim 1 , wherein the locking element is a set screw.
8. The device of claim 5 , wherein a proximal portion of the locking element channel includes a threading corresponding to a threading of the set screw.
9. The device of claim 1 , further comprising a mating element including:
a distal abutting surface for abutting a proximal abutting surface of the device;
a first channel which, when in a desired position, is aligned with the bore; and
a second channel which, when in a desired position, is aligned with the locking element channel.
10. The device of claim 9 , wherein the second channel includes a proximal portion and a distal portion, the proximal portion being angled relative to the distal portion, which is angled toward the first channel.
11. The device of claim 9 , wherein the mating element includes a proximal abutting surface for abutting a distal end of a tensioning device.
12. The device of claim 1 , wherein the locking element comprises one of an interference fit plug and a pin in combination with a crushable section of the locking element channel, crushing of the crushable section locking the pin in a desired position within the locking element channel.