Bone fixation device
A bone fixation device ( 1 ) is presented, comprising a wire ( 7 ) and a load distributor ( 9 ), the load distributor comprising: a contact side ( 2 ) having a contact region ( 11 ) which is pressed against the bone to be fixed upon tightening of the wire ( 7 ), and two opposite lateral sides ( 4 ) that are not in contact with the bone upon tightening of the wire ( 7 ). At least one of the lateral sides ( 4 ) is provided with a plurality of recesses ( 5 ) which do not extend into the contact sides ( 2 ). The contact side ( 2 ) of the load distributor ( 9 ) has a continuous smooth surface which is configured to slide across the bone without damaging the bone when the load distributor ( 9 ) is pulled longitudinally across the bone during application.
1 . A bone fixation device, comprising:
a wire; and
a load distributor surrounding the wire, including:
a channel defined therein and extending therethrough in a longitudinal direction, the channel configured to house the wire therein;
two contact sides located on opposite sides of the load distributor, each of the sides having a contact region configured to be pressed against bone and fixed to bone upon tightening of the wire; and
two opposite lateral sides that each remaining spaced from bone upon tightening of the wire, wherein at least one of the lateral sides is provided with one or more holes which do not extend into either of the two contact sides, wherein the two contact sides, at least at their respective contact regions, each have a continuous surface, without any recess or indentation, configured to facilitate sliding the load distributor longitudinally across bone with minimal or no damage to bone.
2 . The bone fixation device according to claim 1 , wherein the contact sides do not include the one or more recesses at least within the contact region and wherein the contact sides do not define indentations at least within the contact region.
3 . The bone fixation device according to claim 1 , wherein the continuous surface of the two contact sides extends over substantially an entire length of the load distributor.
4 . The bone fixation device according to claim 1 , wherein the wire has one or more curved sections which facilitate securing the wire to the load distributor by friction.
5 . The bone fixation device according to claim 1 , wherein the load distributor has a slit defined therein extending along an entire length thereof, the slit facilitating assembly of the wire after the load distributor has been manufactured.
6 . The bone fixation device according to claim 1 , wherein the one or more recesses provided in at least one of the lateral sides is configured as a through hole or a blind hole.
7 . The bone fixation device according to claim 1 , wherein the one or more recesses is located outside the contact region.
8 . The bone fixation device according to claim 1 , wherein both lateral sides are provided with a plurality of recesses.
9 . The bone fixation device according to claim 1 , wherein the load distributor is molded around the wire or manufactured by 3D-printing.
10 . The bone fixation device according to claim 1 , wherein the load distributor includes one or more parts which are connected to each other after the wire has been inserted into the channel.
11 . The bone fixation device according to claim 1 , wherein the load distributor is axisymmetric about a central longitudinal axis.
12 . The bone fixation device according to claim 1 , wherein the load distributor has one or two tapered ends.
13 . A load distributor for a bone fixation device, comprising:
a channel defined therein and extending therethrough in a longitudinal direction, the channel configured to house a wire therein;
two contact sides located on opposite sides of the load distributor, each of the contact sides having a contact region, wherein at least one of the contact regions is configured to affix against bone upon tightening of the wire; and
two opposite lateral sides each remaining spaced from bone upon tightening of the wire,
wherein at least one of the two lateral sides is provided with a plurality of holes which do not extend into either of the two contact sides, and
wherein the two contact sides, at least at their respective contact regions, each have a continuous surface, without any recess or indentation, configured to facilitate sliding the load distributor longitudinally across bone with minimal or no damage to bone.