Methods and devices for removing abnormalities from bone

摘要

Various exemplary methods and devices are provided for removing abnormalities from bone. In general, the methods and devices can be used to allow excess bone to be scraped from a bone surface. In an exemplary embodiment, a scraper tool is provided that includes an elongate shaft having a plurality of blades movably disposed therein. The blades can be configured to move as a unit between a retracted configuration, in which the blades can be entirely disposed within the elongate shaft, and an advanced configuration, in which at least a portion of the blades can extend distally from the elongate shaft and/or flare away from one another. A distal portion of each of the blades can have a radius of curvature corresponding to a radius of curvature of the bone to be scraped.

主权项

1. A surgical method, comprising:
advancing a scraping device into a body of a patient such that the scraping device is positioned adjacent to a bone having an abnormality thereon; extending a plurality of blades as a unit from the scraping device such that the plurality of blades move radially apart from one another, a distal portion of each of the blades having a radius of curvature corresponding to a desired geometry of a surface of the bone; and manipulating the scraping device to cause the plurality of blades to scrape the abnormality at least partially off the bone so as to create the desired geometry of the surface of the bone.