Method and tool for measuring and correcting deformities for fractures and osteotomies
AssigneeMahmoud Hafez
InventorsMahmoud Alm El Din Hafez, Mansoor Tahnoon Al Nehayan
Life of this patent
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Abstract
This invention is a method and tool for measuring and correcting deformities during osteotomy and treatment of fractures. The tool designed to restoring, alignment and correcting deformities of bone and joints is based on preoperative imaging and calculation of the deformity angle and planning for the deformity correction, the tool has a mechanism and power to force the bone to move according to the planning trajectory aiming at normal alignment during osteotomy and treatment of fracture and dislocation, it has a gauge to measure the degree of correction and the value of the bone displacement needed to overcome the bone overlapping and deformity angle in the fracture zone.
Claims13
A tool for restoring alignment and correcting deformities of bones and joints based on preoperative imaging and calculation of the deformity angle and planning for the deformity correction, the tool comprising a fixed proximal ring (1), a movable distal ring (2), a tip alignment rod (3), a sleeve (4), fixation holes (6), a fixation sphere (7), a front rubber (8), a spring (9), a holder (10), a back rubber (11) and a rotation correction arm (17);
- wherein the sleeve is fixed to the movable distal ring and the front rubber;
- wherein the front rubber and the back rubber are disposed on opposite sides of the spring on the tip alignment rod adapted to provide traction;
- and
- wherein the tool is adapted for forcing the bone to move according to a planning trajectory aiming at normal alignment during osteotomy and treatment of fracture and dislocation, and further includes a first gauge (18) to measure a degree of correction and a value of the bone displacement needed to overcome bone overlapping and deformity angle in a fracture zone.
A tool for restoring alignment and correcting deformities of bones and joints based on preoperative imaging and calculation of the deformity angle and planning for the deformity correction, the tool comprising a fixed proximal ring (1), a movable distal ring (2), a tip alignment rod (3), a sleeve (4), fixation holes (6), a fixation sphere (7), a front rubber (8), a spring (9), a holder (10), a back rubber (11) and a rotation correction arm (17);
- wherein the tool is adapted for forcing the bone to move according to a planning trajectory aiming at normal alignment during osteotomy and treatment of fracture and dislocation, and further includes a first gauge (18) to measure a degree of correction and a value of the bone displacement needed to overcome bone overlapping and deformity angle in a fracture zone;
- wherein the rotation correction arm (17) is adapted to rotate a distal part of the bone to a desired anatomical position according to the planned value based on the preoperative planning method and by using the first gauge (18), which is provided on the movable distal ring (2);
- and
- wherein the rotation correction arm (17) is adapted to be guided by a rotation correction slot (5) in a wall of the movable distal ring (2).
Dependencies are inferred from the claim text.