Interlocking bone plate system
AssigneeTaichung Veterans General Hospital
InventorsCheng-Hung Lee, Chih-Han Chang, Chih-Kun Hsiao, Kui-Chou Huang, Chih-Hui Chen
Life of this patent
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Abstract
An interlocking bone plate system includes an outer bone plate for being arranged outside a broken bone, an inner bone plate for being installed inside the medullary cavity of the broken bone, and screws for being inserted through and engaged with the outer bone plate and the broken bone and then engaged with the inner bone plate so as to interlock the out and inner bone plates together. The inner bone plate provides an added support in addition to the support provided by the outer bone plate, enhancing the structural strength of the whole bone fixation structure and lowering the risk of failed surgery.
Claims13
An interlocking bone plate system for fixation of a fracture of a bone including a diaphysis, an epiphysis, a metaphysis between said diaphysis and said epiphysis, a bone wall and a medullary cavity surrounded by said bone wall, the interlocking bone plate system comprising:
- an outer bone plate for being arranged outside said bone adjacent to an outer surface of said bone, said outer bone plate comprising at least one first through hole;
- an inner bone plate for being installed inside said medullary cavity of said bone corresponding to said outer bone plate, said inner bone plate comprising at least one second through hole;
- and
- at least one screw comprising a head for being engaged with said at least one first through hole, and a shank for being inserted through and engaged with said bone wall of said bone and engaged with said at least one second through hole;
- such that said outer bone plate and said inner bone plate are spacedly interlockable;
- wherein said first through hole of said outer bone plate defines a first peripheral edge and a first positioning portion located on said first peripheral edge;
- said second through hole of said inner bone plate defines a second peripheral edge and a second positioning portion located on said second peripheral edge corresponding to the first positioning portion of said first through hole.
An interlocking bone plate system, comprising:
- an outer bone plate comprising a first through hole;
- an inner bone plate comprising a second through hole;
- and
- a screw comprising a head engaged with said first through hole, and a shank engaged with said second through hole, such that said outer bone plate and said inner bone plate are spacedly interlocked;
- wherein said first through hole of said outer bone plate defines a first peripheral edge and a first positioning portion located on said first peripheral edge;
- said second through hole of said inner bone plate defines a second peripheral edge and a second positioning portion located on said second peripheral edge corresponding to the first positioning portion of said first through hole.
Dependencies are inferred from the claim text.