Patent ID: 9603605
Date: 2017-03-28
CPC Classifications: A61B,A61F

Claim:
1. A cutting block for use in a bone osteotomy procedure on a proximal portion of a tibia, the tibia having a longitudinal axis, and the tibia having a first side on one side of a patella tendon and a second side on another side of the patella tendon, the cutting block comprising: a. a first cutting guide surface open to a first side of said cutting block, said first cutting guide surface extending from the first side of the cutting block towards a central portion of the cutting block, the first cutting guide surface terminating in the central portion at a first stop surface transversely oriented to the first cutting guide surface; b. a second cutting guide surface open to a second side of said cutting block, said second cutting guide surface extending from the second side of the cutting block towards the central portion of the cutting block, the second cutting guide surface terminating in the central portion at a second stop surface transversely oriented to the second cutting guide surface; c. a third cutting guide surface open to the second side of the cutting block; and d. a cutout portion defining a recess adapted to receive the patella tendon by straddling the patella tendon such that the cutting block contacts the proximal portion of the tibia on both the first and second sides of the patella tendon; wherein the cutting block is adapted to be temporarily affixed to an anterior portion of the proximal portion of the tibia in an affixed position, such that, when the patella tendon is received by the recess of the cutout portion, said first cutting guide surface is disposed on the first side of the tibia defining a first plane with respect to the tibia, the second cutting guide surface is disposed on the second side of the tibia defining a second plane with respect to the tibia, and the third cutting guide surface is disposed on the second side of the tibia defining a third plane with respect to the tibia, the second and third planes intersecting at an angle within the tibia to form an apex, and wherein said first and second cutting guide surfaces are disposed on a first arm.