Magnetic positioning systems and methods for dental procedures and applications

The magnetic positioning system addresses the challenge of precise dental tool positioning by using electromagnets and magnetometers to estimate tool position and orientation, enhancing procedural precision and efficacy.

WO2025072900A1 Publication Date: 2025-04-03CLOUDNAV INC
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Patent Information

Application Number
PCT/US2024/049155
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-29
Filing Date
2024-09-29
Publication Date
2025-04-03

AI Technical Summary

Technical Problem

Current dental procedures face challenges in achieving precise positioning of dental handpieces due to visual impairments from debris during drilling and variations in patient anatomy, leading to potential inaccuracies and inefficiencies.

Method used

A magnetic positioning system that uses electromagnets affixed to objects in a patient's mouth and magnetometers on dental tools to estimate the position and orientation of the tools relative to the objects, providing feedback for precise automation.

Benefits of technology

The system enhances the precision of dental procedures by providing accurate positioning and orientation of dental tools, improving the efficacy of procedures such as fillings, crowns, root canals, and dental implant surgery, while being resistant to visual impairments.

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Abstract

Devices, systems and methods for estimating a position and an orientation of a dental tool are described. An example system for estimating a position and an orientation of a dental tool includes multiple electromagnets are removably affixed to an object positioned in a patient's mouth, the object being movable at least based on movements of the patient's mouth, and multiple magnetometers affixed to a dental tool that is non-stationary. The system further includes at least one processor configured to drive the plurality of electromagnets with at least one programmed signal, receive, from the plurality of magnetometers, magnetic field measurements, and determine, based on the magnetic field measurements, the position and the orientation of the dental tool relative to the object.
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