Abstract Single or double plates are provided for application across the fracture site of fractured bones and wherein the single or double plates are constructed to allow for compressional and tensional forces acting on the fractured bone. When a single plate is used it is rigidly secured at one end on one side of the fracture site and at the other end by means of elongated apertures for fastening the plate on the other side of the fracture site while allowing for relative movement of the bone pieces and fragments and providing for locking the bone fragments in increasingly closer relationship as healing occurs. When two plates are used they operate in the same general functional manner, but the lower plate is provided with elongated openings on one side of the fracture site and the upper plate is provided with elongated openings on the other side of the fracture site and one plate, preferably the lower plate, is provided with a serrated jaw for the reception of a serrated tongue of the other plate which is bent into the same plane. The double plate arrangement may have one of the plates channelled for the slidable reception of the other plate. Use of the plates aids and promotes knitting of the bone fragments and enables the patients to be rapidly ambulatory.
Plate means for bone fractures comprising a pair of rigid plates having apertures through which securing means are adapted to pass into the bone on one side of the fracture site and elongated openings through which securing means are adapted to pass into the bone on the other side of the fracture site, the plates with their apertures and securing means being arranged to respond to tensional and compressional forces acting on said fractured bone and maintaining the bone fragments at the fracture site in alignment and in position for aiding healing in which there are two relatively movable overlying plates slidable longitudinally on each other and of which one plate has a laterally serrated tongue at one extremity engaged in a serrated open-ended jaw of the other plate and bent into its plane.
Claim 2
Dependent Claim
134 words
Plate means for bone fractures comprising a pair of rigid plates having apertures through which securing means are adapted to pass into the bone on one side of the fracture site and elongated openings through which securing means are adapted to pass into the bone on the other side of the fracture site, the plates with their apertures and securing means being arranged to respond to tensional and compressional forces acting on said fractured bone and maintaining the bone fragments at the fracture site in alignment and in position for aiding healing in which there are two relatively movable overlying plates slidable longitudinally on each other and of which one plate has a laterally serrated tongue at one extremity engaged in a serrated open-ended jaw of the other plate and bent into its plane.
Claim 3
Dependent Claim
37 words
Plate means according to claim 1 in which one of the plates has its elongated openings on one extremity of the plate and the other plate has its elongated openings on the opposite extremity of the plate.
Claim 4
Dependent Claim
22 words
Plate means according to claim 1 in which one of the plates is channelled for the reception therein of the other plate.