发明名称 |
CATHETER NAVIGATION USING IMPEDANCE AND MAGNETIC FIELD MEASUREMENTS |
摘要 |
A method of operating a positioning system by registering a first coordinate system of a first positioning system in a second coordinate system of a second positioning system includes determining an interpolation function configured to register the first, non-orthonormal coordinate system in the second, orthonormal coordinate system. Fiducial pairs are collected by the respective positioning systems, each of which contain a respective coordinate in the respective coordinate system, both of which refer to the same physical point in three dimensional space. Establishing a working interpolation function involves an analysis of the fiducial pairs using a thin-plate spline algorithm. The method further includes repeatedly obtaining a first coordinate in the first coordinate system and determining a corresponding second coordinate in the second coordinate system in accordance with the interpolation function. |
申请公布号 |
EP2755553(A2) |
申请公布日期 |
2014.07.23 |
申请号 |
EP20120831765 |
申请日期 |
2012.03.28 |
申请人 |
ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC. |
发明人 |
OLSON, ERIC S.;CARBONERA, CARLOS;KOYRAKH, LEV A.;STARKS, DANIEL R. |
分类号 |
A61B5/05;A61B5/00;A61B5/053;A61B5/06;A61B19/00 |
主分类号 |
A61B5/05 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|