The bone plate with orifu00eccio type layout of hyperbola hyperbolic tangent between two called

摘要

"Bone plate with orifu00eccio type layout of hyperbola hyperbolic tangent between two called".Understood by a bone plate (1) with aperture (2) type layout of hyperbola tangent between two known as hyperbolic.Consists of a system that has a head (3) of the screw (4) with thread of a standard and universal input and fillets as step ranging from 0.5 to 1.5 mm and the height of the fillet ranging from 0.45 to 1.00 mm, with a cavity (5) for tightening the bolt (4) in the plate (1), and these holes (2) have a great tendency to out of roundness, so that, in a transversal axis (6) of the hole (2),The edges are approximately 30% larger than the diameter of the bolt (4), allowing the bolt (4) and a bone has a longitudinal sliding tilting rotational 360 198 ,Allowing the fixation of bone fragments lateralizados to the longitudinal axis of the plate (1),So that the contact angle of the screw (4) is defined so as to ensure a perfect fit between the head (3) of the bolt (4) and the plate (1),It should be above 75% of the circumference of the head (3), so that the plate (1) consists of two types of orifices (2) within the cavity (5),Circular hole with tapered or conical hole thread only, that is, in the same plate (1) can only have the hole or only the circular conical threaded or both.So that the circular hole is constituted of a tapered thread with step input and fillets, universal and normalised as step ranging from 0.5 to 1.5 mm and the height of the fillet ranging from 0.45 to 1.00 mm.