Variable drive vitrectomy cutter
US8298253B2 · kind B2 · utility
63Cited by
32References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 2010 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Sep 5, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/00763
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vitrectomy probe having a variable duty cycle cutting mechanism is disclosed. The probe includes a motor and a cam driver rotationally driven by the motor. The cam driver has a non-planar driver surface having surface features that vary at different radii. A follower mechanism is arranged to selectively interface with the driver surface at different radii on the driver surface in a manner to selectively interface with the varied surface features at the different radii. The follower is arranged to transfer rotational movement of the cam driver into linear movement of the follower mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.