公开(公告)号：US20140187915A1

公开(公告)日：2014-07-03

申请号：US13728831

申请日：2012-12-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Andriy Yaroshenko ,  Aghogho Obi

IPC: A61B5/06 ,  A61B6/12 ,  A61B17/16 ,  A61M1/00 ,  A61B17/28 ,  A61B17/32 ,  A61B17/86 ,  A61B17/84 ,  A61B17/06 ,  A61B17/34 ,  A61M25/09 ,  A61F2/82 ,  A61F2/01 ,  A61B1/313 ,  A61N1/04 ,  A61B6/00 ,  A61B6/03 ,  A61B5/055 ,  A61B5/00

CPC classification number: A61B5/062 ,  A61B6/032 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/463 ,  A61B6/487 ,  A61B6/5247 ,  A61B6/54 ,  A61B17/00234 ,  A61B17/06 ,  A61B17/16 ,  A61B17/28 ,  A61B17/32 ,  A61B17/34 ,  A61B17/846 ,  A61B17/86 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2090/376 ,  A61N1/04

Abstract: A method performed in a medical navigation system includes driving a transmitter at a first frequency and a second frequency to generate first and second electromagnetic fields, wherein the first and second frequencies are sufficiently low such that the first and second electromagnetic fields are frequency independent; receiving first and second distorted fields corresponding to the first and second electromagnetic fields, respectively, with each of at least two electromagnetic (EM) sensors attached to a surgical device; generating first and second signals in response to receiving the first and second distorted fields, respectively, using each of the at least two EM sensors; and determining a distortion in the first and second signals based at least on a distance between the at least two EM sensors and a difference between the first and second signals generated by each of the at least two EM sensors.

Abstract translation: 在医疗导航系统中执行的方法包括以第一频率和第二频率驱动发射机以产生第一和第二电磁场，其中第一和第二频率足够低，使得第一和第二电磁场是频率无关的; 分别接收与第一和第二电磁场对应的第一和第二失真场，其中至少两个电磁（EM）传感器中的每一个连接到外科装置; 响应于使用所述至少两个EM传感器中的每一个分别接收第一和第二失真场来产生第一和第二信号; 以及至少基于所述至少两个EM传感器之间的距离和由所述至少两个EM传感器中的每一个产生的所述第一和第二信号之间的差异来确定所述第一和第二信号中的失真。

公开(公告)号：US09002437B2

公开(公告)日：2015-04-07

申请号：US13728831

申请日：2012-12-27

Applicant: General Electric Company

Inventor： Andriy Yaroshenko ,  Aghogho Obi

IPC: A61B5/06 ,  A61B6/12 ,  A61B1/313 ,  A61B17/06 ,  A61B17/16 ,  A61B17/28 ,  A61B17/32 ,  A61B17/34 ,  A61B17/84 ,  A61B17/86 ,  A61B6/00 ,  A61N1/04 ,  A61B19/00 ,  A61B6/03

CPC classification number: A61B5/062 ,  A61B6/032 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/463 ,  A61B6/487 ,  A61B6/5247 ,  A61B6/54 ,  A61B17/00234 ,  A61B17/06 ,  A61B17/16 ,  A61B17/28 ,  A61B17/32 ,  A61B17/34 ,  A61B17/846 ,  A61B17/86 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2090/376 ,  A61N1/04

Abstract: A method performed in a medical navigation system includes driving a transmitter at a first frequency and a second frequency to generate first and second electromagnetic fields, wherein the first and second frequencies are sufficiently low such that the first and second electromagnetic fields are frequency independent; receiving first and second distorted fields corresponding to the first and second electromagnetic fields, respectively, with each of at least two electromagnetic (EM) sensors attached to a surgical device; generating first and second signals in response to receiving the first and second distorted fields, respectively, using each of the at least two EM sensors; and determining a distortion in the first and second signals based at least on a distance between the at least two EM sensors and a difference between the first and second signals generated by each of the at least two EM sensors.

Abstract translation: 在医疗导航系统中执行的方法包括以第一频率和第二频率驱动发射机以产生第一和第二电磁场，其中第一和第二频率足够低，使得第一和第二电磁场是频率无关的; 分别接收与第一和第二电磁场对应的第一和第二失真场，其中至少两个电磁（EM）传感器中的每一个连接到外科装置; 响应于使用所述至少两个EM传感器中的每一个分别接收第一和第二失真场来产生第一和第二信号; 以及至少基于所述至少两个EM传感器之间的距离和由所述至少两个EM传感器中的每一个产生的所述第一和第二信号之间的差异来确定所述第一和第二信号中的失真。