Yogesh Jayaraman SHARMA,Christopher W. HYDE,Brendan CRONIN,Jochen SCHMITT
申请号：
US15995130
公开号：
US20180344203A1
申请日:
2018.06.01
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A minimally invasive surgical instrument using 3-axis magnetic positioning, system and methods thereof. This invention describes two key ideas that enable the development of a magnetic position system based on integrated anisotropic magnetoresistive (AMR) magnetic field sensors. This achieves the resolution, power and area targets necessary to integrate 3 axes anisotropic magnetoresistance (AMR) sensors along with the Analog Front End integrated circuit (IC) in a 4 mm by 350 um integrated solution for catheter applications. The stringent area and power dissipation requirements are met by development through both system level solutions for higher field strengths and a minimally necessary Analog Front End (AFE) to meet the 1 mm rms resolution requirement in the power dissipation and area budget.
