Invention Grant
US08412309B2 Medical device guiding system, medical device guiding method, and method for creating look-up table to be used in medical device guiding system
有权
医疗器械引导系统，医疗器械引导方法以及用于医疗器械引导系统中使用的查找表的方法
- Patent Title: Medical device guiding system, medical device guiding method, and method for creating look-up table to be used in medical device guiding system
- Patent Title (中): 医疗器械引导系统，医疗器械引导方法以及用于医疗器械引导系统中使用的查找表的方法
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Application No.: US12698444Application Date: 2010-02-02
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Publication No.: US08412309B2Publication Date: 2013-04-02
- Inventor: Akio Uchiyama , Atsushi Kimura , Johannes Reinschke , Wolfgang Schmidt
- Applicant: Akio Uchiyama , Atsushi Kimura , Johannes Reinschke , Wolfgang Schmidt
- Applicant Address: JP Tokyo DE Munich
- Assignee: Olympus Medical Systems Corp.,Siemens Aktiengesellschaft
- Current Assignee: Olympus Medical Systems Corp.,Siemens Aktiengesellschaft
- Current Assignee Address: JP Tokyo DE Munich
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Priority: JP2007-208460 20070809
- Main IPC: A61B5/06
- IPC: A61B5/06
Abstract:
The accurate position detection without being affected by an unnecessary second magnetic field can be realized by calculating the unnecessary second magnetic field induced and generated at positions of magnetic field sensors by a guiding coil arranged the position detection area of the medical device due to an action of a first magnetic field generated by a magnetic field generator, at the time of position detection, and the second magnetic field is subtracted from the first magnetic field detected by the magnetic field sensors to calculate corrected magnetic-field information. Further, LUTs that store beforehand numerical information having a correlation with the second magnetic field induced and generated at the positions of magnetic field sensors are used to calculate the second magnetic field, thereby enabling to reduce an amount of calculation performed each time and realize high speed processing.
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