Expandable orthopedic drill for vertebral interbody fusion techniques
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United States of America Patent
Stats
-
May 1, 2001
Grant Date -
N/A
app pub date -
Jul 30, 1999
filing date -
Jul 30, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An expandable orthopedic drill includes a shaft provided with a handle at is proximal end. Several cutters are supported around the hub by a linkage which maintains the edges of the cutters at a predetermined angle to the axis of the tool. The cutters are driven outward from the shaft, expanding the effective size of the drill, by means of a sleeve. The sleeve is driven along the shaft by turning a nut engaged with threads on the shaft. Tapered holes may be produced by changing the lengths of the links.
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Family
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Cited Art Landscape
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