Disposable surgical cutter for shaping the head of a femur

摘要

A single use bone cutter comprised of a plate with a plurality of insert blade enclosures is described. The insert blade enclosures are arranged in a spiral pattern about the plate and are further positioned at varying height intervals through the thickness of the plate. The bone cutter provides a means whereby the insert blades can be easily positioned within the plurality of blade enclosures to provide a wide array of cutting diameters.

主权项

1. A bone cutter comprising:
a) a plate having a top surface extending to a bottom surface with a thickness therebetween, wherein a first longitudinal axis is aligned substantially perpendicular to at least one of the top and bottom plate surfaces; b) at least two blade enclosures supported by the plate, each enclosure comprising:
i) an enclosure sidewall extending along a second longitudinal axis from an enclosure proximal portion to an enclosure distal end, wherein a first distal end of a first blade enclosure is either flush or protrudes below the plate bottom surface a first distance and a second distal end of a second blade enclosure protrudes below the plate bottom surface a second distance greater than the flush or first distance of the first enclosure; andii)a blade enclosure opening extending along the enclosure sidewall to an enclosure distal open end,iii) wherein the second longitudinal axes of the at least two blade enclosures are substantially parallel to each other and spaced from, but substantially parallel toe the first longitudinal axis of the plate; and c) at least two insert blades, each blade having a blade proximal region extending to a distal cutting surface, wherein each of the at least two blades are positionable within a respective blade enclosure so that the blade proximal region resides within the blade enclosure opening and the distal cutting surface extends outwardly from the enclosure distal open end.