System and methods for correct navigation of an instrument inside a human body
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Publication Number
US-12697042-B2
Publication Date
2026-08-04
Expiration Date
Abstract
A system for correct navigation of an instrument inside a human body, comprising a reference instrument disposed at a first region of an anatomical part, a roving instrument disposed at a second region of the anatomical part, and a control circuit coupled with the reference instrument and the roving instrument, configured to receive a plurality of magnetic locations and a plurality of first impedance locations from the reference instrument, generate a localization model as a function of the plurality of magnetic locations and the plurality of first impedance locations, receive a second impedance location from the roving instrument, and generate an updated second impedance location of the roving instrument, using the localization model, as a function of the second impedance location.
Core Innovation
The system and method provide correct navigation and localization of an instrument inside a human body. A control circuit receives ground truth locations and first impedance locations from a reference instrument moving within a first region of an anatomical part. The control circuit also receives a second impedance location from a roving instrument in a second region and generates an updated second impedance location as a function of these locations.
The generated updated location supports real-time visualization and instrument guidance within an anatomical part. The localization model utilizes reference-instrument magnetic and impedance locations, and the system can retrain or recalibrate the localization model as anatomy or impedance conditions change. The specific background problems are not explicitly described in patent due to omitted background disclosure.
Claims Coverage
There are two independent claims covering two inventive features directed to a system and a method for correct navigation of an instrument inside a human body.
System for correct navigation
A reference instrument is disposed at a first region of an anatomical part, and a roving instrument is disposed at a second region. A control circuit receives ground truth locations and first impedance locations from the reference instrument while it moves within the first region, receives a second impedance location from the roving instrument, and generates an updated second impedance location as a function of those locations.
Method for correct navigation
A control circuit receives ground truth locations and first impedance locations from a reference instrument moved within a first region of an anatomical part, receives a second impedance location from a roving instrument in a second region, and generates an updated second impedance location as a function of the ground truth locations, first impedance locations, and second impedance location.
The independent claims cover a system and a method that share the feature of generating an updated impedance location for a roving instrument using location data collected from a moving reference instrument.
Stated Advantages
The updated location can support real-time visualization and instrument guidance.
Documented Applications
Correct navigation and localization of an instrument inside a human body using reference and roving instruments disposed at different regions of an anatomical part, including display of the updated location on a three-dimensional map.
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