Expandable orthopedic drill for vertebral interbody fusion techniques
US6224604A · kind A · utility
145Cited by
5References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/8588
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.