Polyaxial locking plate
First Claim
1. A fracture repair system for engagement with a bone, the system comprising:
- a plate including a body portion and an internal wall defining a plate hole through the body portion, a bushing including a radially exterior surface and an opposite radially interior surface defining a passageway, the exterior surface of said bushing and the interior wall of said plate being configured to permit polyaxial rotation of said bushing within the plate hole an attachment component including a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press said bushing against the internal wall of said plate to form a friction lock between said bushing and said plate in a selected polyaxial position, said attachment component being positionable in an orientation extending divergingly from the center of said plate.
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Accused Products
Abstract
According to the present invention, a fracture repair system for engagement with a bone is provided. The system includes a plate. The plate has a body portion and an internal wall defining a plate hole through the body portion. The system also includes one or more bushings having a radially exterior surface and an opposite radially interior surface defining a passageway. The exterior surface of the bushings and the interior wall of the plate are configured to permit polyaxial rotation of the bushings within the plate hole. The system also includes an attachment component having a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press the bushings against the internal wall of the plate to form a friction lock between the bushings and the plate in a selected polyaxial position. The attachment component is positionable in an orientation extending divergently from the center of the plate.
339 Citations
32 Claims
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1. A fracture repair system for engagement with a bone, the system comprising:
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a plate including a body portion and an internal wall defining a plate hole through the body portion, a bushing including a radially exterior surface and an opposite radially interior surface defining a passageway, the exterior surface of said bushing and the interior wall of said plate being configured to permit polyaxial rotation of said bushing within the plate hole an attachment component including a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press said bushing against the internal wall of said plate to form a friction lock between said bushing and said plate in a selected polyaxial position, said attachment component being positionable in an orientation extending divergingly from the center of said plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A knee fracture repair system for engagement with a bone, the system comprising:
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a femur plate including a body portion conforming at least partially to the contour of the femur and an internal wall defining a femur plate hole through the body portion, a tibia plate including a body portion conforming at least partially to the contour of the tibia and an internal wall defining a tibia plate hole through the body portion, a bushing including a radially exterior surface and an opposite radially interior surface defining a passageway, the exterior surface of the bushing and the interior wall of said plate being configured to permit polyaxial rotation of the bushing within at least one of the femur plate hole and the tibia plate hole, and an attachment component including a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press the bushing against the internal wall of the plate to form a friction lock between the bushing and at least one of the femur plate hole and the tibia plate hole in a selected polyaxial position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 18, 19, 20)
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17. A femur plate for use in a knee fracture repair system for engagement with a bone, the femur plate comprising:
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A plate portion including a body portion conforming at least partially to the contour of the femur and an internal wall defining a femur plate hole through the body portion, a bushing including a radially exterior surface and an opposite radially interior surface defining a passageway, the exterior surface of the bushing and the interior wall of said plate portion being configured to permit polyaxial rotation of the bushing within the plate hole, and an attachment component including a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press the bushing against the internal wall of the plate portion to form a friction lock between the bushing and the plate portion in a selected polyaxial position, said attachment component being positionable in an orientation extending divergently from the center of the plate portion. - View Dependent Claims (21, 22, 23, 25, 26, 27, 30)
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24. A tibia plate for use in a knee fracture repair system for engagement with a bone, the tibia plate comprising:
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a plate portion including a femur plate including a body portion conforming at least partially to the contour of the femur and an internal wall defining a femur plate hole through the body portion, a bushing including a radially exterior surface and an opposite radially interior surface defining a passageway, the exterior surface of the bushing and the interior wall of said plate being configured to permit polyaxial rotation of the bushing within the plate hole, and an attachment component including a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press the bushing against the internal wall of the plate to form a friction lock between the bushing and the plate in a selected polyaxial position, said attachment component being positionable in an orientation extending divergently from the center of the plate - View Dependent Claims (28, 29, 31)
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32. A method for coupling two bone portions together, the method comprising the steps of:
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providing a locking plate apparatus including a plate having a body portion and at least two plate holes through the body portion, a bushing movably coupled in each plate hole and having a radially exterior surface, an opposite interior surface, and first and second ends defining a passageway therebetween, and at an attachment component for each bushing sized for extension into the passageway, each attachment component including opposite leading and trailing portions, positioning the body portion upon the bone portions so that the plate holes in the plate are situated over bone, rotating at least one bushing within the plate hole until the first and second ends of the bushing are aligned along an axis that extends through a pre-determined portion of the bone, inserting the leading portion of the attachment components into the respective passageway, and driving the trailing portion of each attachment component through the respective passageway until the leading portion is positioned in the bone and the exterior surface of the bushing is pressed against the body portion to form a friction lock therebetween.
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Specification