Tools for tissue removal
The present invention is directed to material removal instrument (100) for forming cavities in interior body regions, particularly cavities in intervertebral discs and vertebrae. The instrument includes a cannula (120) and a rotation mechanism (140) disposed at least partially within the cannula. A...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention is directed to material removal instrument (100) for forming cavities in interior body regions, particularly cavities in intervertebral discs and vertebrae. The instrument includes a cannula (120) and a rotation mechanism (140) disposed at least partially within the cannula. A cutting element extends from the rotation mechanism and impacts and dislocates tissue as the rotation mechanism is rotated within the body. The cutting element can be a blade (146), a thread (256), a mass element (346), or an expandable cutting element (446). Dislocated tissue is withdrawn from the body via the cannula. |
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