JPWO2021205263A5 - - Google Patents

Claims (11)

A bone plating system for a patient, the system comprising:
a first bone plate sized and shaped to fit a first bone portion of the patient;
a second bone plate sized and shaped to fit a second bone portion of the patient, the second bone plate receiving a fastener at an angle of less than about 90 degrees to a surface of the second bone plate; a second bone plate including at least one fixation port for
at least one connecting bridge member configured to attach the first bone plate to the second bone plate ;
The at least one fixation port further comprises a bore extending from a second tissue-engaging surface of the second bone plate to a second bone-engaging surface of the second bone plate, the bore comprising: A bone plating system extending in a direction substantially oriented toward a distal end of the second bone plate and away from a proximal end of the second bone plate . the bore passing through the center of the bore in a direction substantially oriented toward the distal end of the second bone plate and away from the proximal end of the second bone plate; The bone plating system of claim 1 , further comprising a bore central axis extending through the bore. The at least one fixation port further comprises a wall surrounding the bore, the wall comprising: (i) a fastener support surface defining a head receiving volume adjacent the second tissue engaging surface; and (ii) ) a shaft clearance surface defining a generally frustoconically shaped shaft receiving volume, whereby the head receiving volume is generally spherical and the shaft clearance surface is generally elliptical. 2. The bone plating system according to 2 . 4. The bone plating system of claim 3 , wherein the fastener support surface is adjacent to and abuts the shaft clearance surface at a bore apex extending generally around the entire circumference of the bore. The at least one fixation port further includes a fastener support axis generally adjacent the bore apex, the fastener support axis being at a first angle of 90 degrees or less relative to the bone engagement axis of the second bone plate. 5. The bone plating system of claim 4 , extending at an angle of. The bone plating system of claim 5 , wherein the first angle is about 1 to 15 degrees. The bone plating system of claim 5 , wherein the first angle is about 15 to about 35 degrees. The bone plating system of claim 5 , wherein the first angle is about 35 to about 60 degrees. The bone plating system of claim 5 , wherein the first angle is about 60 to about 75 degrees. The bone plating system of claim 5 , wherein the first angle is about 75 to about 90 degrees. A bone plating system for a patient, the system comprising:
a substantially rectangular first bone plate sized and shaped to fit a first bone portion of the patient, the plate comprising: a first bone-engaging surface; a first tissue-engaging surface; a first bone plate having a first edge and a second edge;
a substantially trapezoidal second bone plate sized and shaped to fit a second bone portion of the patient, the second bone plate having a second bone engaging surface, a second tissue engaging surface; a second bone plate having a proximal end, a distal end, and a peripheral edge;
at least one connecting bridge member having a first end and a second end, the first end of the at least one connecting bridge member being connected to the second end of the first bone plate; at least one connecting bridge member connected to the edge, the second end of the at least one connecting bridge member being connected to the proximal end of the second bone plate;
The proximal end of the second bone plate is spaced a first distance from the second edge of the first bone plate, and the distal end of the second bone plate is spaced apart from the second edge of the first bone plate. a second distance from the second edge of one bone plate, the second distance being greater than the first distance;
the second bone-engaging surface of the second bone plate has a bone-engaging axis extending from the proximal end of the second bone plate to the distal end of the second bone plate; and the bone-engaging axis is a straight line that coincides with a series of data points representing the second bone-engaging surface of the second bone plate;
the second bone plate has at least one fixation port for receiving a fastener, the at least one fixation port extending from the second tissue-engaging surface to the second bone-engaging surface; , having a bore extending in a direction substantially oriented toward the outer periphery and away from the interior portion of the second bone plate;
the at least one fixation port has a wall surrounding the bore, the wall defining a head-receiving volume of the bore adjacent the second tissue-engaging surface; a shaft clearance surface defining a substantially frustoconically shaped shaft-receiving volume of the bore adjacent the bone-engaging surfaces of 2;
the fastener support surface is adjacent to the shaft clearance surface such that the fastener support surface and the shaft clearance surface have a common vertex extending around at least a portion of the bore; , a fastener support axis adjacent the common apex, the fastener support axis extending at an angle of 90 degrees or less with respect to the bone engagement axis;
Further, the first bone plate is positioned on the first bone portion, the second bone plate is positioned on the second bone portion, and the shaft of the fastener passes through the bore and extends through the bore. When disposed within a second bone portion, the fastener head engages the fastener bearing surface and applies a first force vector to the second bone plate, thereby A bone plating system that attracts the second bone engaging surface against the second bone portion of the patient's bone.