Virtual mapping of an anatomical pivot point and alignment therewith
US8864686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2010 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Aug 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04847
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method is provided for resolving a pivot point via touchless interaction. It applies to situations where one end of a rigid object is inaccessible but remains stationary at a pivot point, while the other end is free to move and is accessible to an input pointing device. As an example, the rigid object can be a leg bone where the proximal end is at the hip joint and the distal end is at the knee. The system comprises a wand and a receiver that are spatially configurable to touchlessly locate the pivot point without contact. The receiver tracks a relative displacement of the wand and geometrically resolves the location of the pivot point by a spherical mapping. The system can use a combination of ultrasonic sensing and/or accelerometer measurements. Other embodiments are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.