Expandable surgical reaming tool
US7722615B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 24, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Sep 3, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/1617
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expanding reamer prepares an acetabulum for a prosthetic component during hip arthroplasty. One or more blades expand in directions non-parallel to the plane of the respective blades and form an effective cutting sphere preferably greater-than-180-degrees for greater flexibility in placement of the reamer shaft relative to the center of axis of the acetabulum. Two parallel blades may move out away from each other and from the reamer rotational axis, staying parallel to each other to become more distanced, but still parallel, segments of a larger cuffing sphere. Or, two blades may start generally parallel to each other and to the rotational axis of the device, but pivot out from each other in directions generally perpendicular to their respective blade planes, again becoming more distanced, but not parallel, segments of a larger cuffing sphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.