Constant lift cam spreader
US7549993B2 · kind B2 · utility
1Cited by
64References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2004 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Mar 9, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0256
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cam spreader having a substantially rigid body with a proximal end defining a handle and a distal end defining a cam. The cam has at least a first lobe, the first lobe having an outer surface in a first quadrant of the cam as viewed in cross section along a longitudinal central axis of the body. At least a portion of the outer surface, or profile, of the curve is mathematically driven and produces a constant incremental lift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.