Apparatus and method for measuring anatomical objects using coordinated fluoroscopy
US7689014B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 12, 2005 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Sep 17, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/364
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Two fluoroscopic images taken from two different angles of the same anatomical feature are registered to a common three-dimensional coordinate system. A dimension of the anatomical feature is determined by specifying with reference to the two registered fluoroscopic images two constrained points within the three-dimensional coordinate system that correspond to the boundaries of the anatomical feature, and calculating a straight-line distance between the two. Additionally, a three-dimensional virtual model of an implant is projected into each of two, registered fluoroscopic image, and a surgeon manipulates the projections to adjust the size and shape of the virtual model, and thereby determine parameters for the implant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.