Reaming tool for reaming bone canals
AssigneeStryker Trauma GmbH
InventorsHans E. Harder, Seyed-Mehdi Mousavi, Vilmos Vécsei
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Abstract
A reaming tool for reaming bone canals with a drill head which is mounted on an elongate flexible shaft which has a diameter smaller than that of the drill head and be which can be connected to a rotary drive motor, wherein the drill head and shank comprise a through-bore for a guiding wire wherein the shaft at least over a part of its length is spiraled in a thread-like manner.
Claims7
A reaming tool for reaming bone canals and conveying cut bone chips from a first depth within the canal to an open end of the bone comprising a drill head which is mounted on an elongated flexible shank which has a diameter smaller than that of the drill head and which can be connected to a rotary drive motor, wherein the drill head and the shank comprise a through-bore for a guiding wire, and wherein the shank contains a flexible spiraled section a substantial portion over of its length that is spiraled in a thread-like manner and has an arcuate thread groove and thread tip.
A reaming tool for reaming bone canals and conveying cut bone chips from a first depth within the canal to an open end of the bone comprising a drill head mounted on a cannulated elongated flexible shank, wherein the shank has a diameter smaller than that of the drill head, and wherein the shank contains a flexible spiraled section at least over part of its length that is spiraled in a thread-like manner, the spiraled section containing an arcuate thread groove for conveying bone chips and a rounded or flattened thread tip wherein the shank is spiraled over a length such that the spiraled section extends to said open end of the bone canal when the drill head is at a said first depth.
Dependencies are inferred from the claim text.