# High Accuracy Location Tracking for a Hemostasis Stent Achieved by the Fusion of Comprehensively Denoised Magnetic and Inertial Measurements

## TL;DR

This paper presents a high-accuracy tracking system for a stent used in emergency hemostasis, combining magnetic and inertial measurements to improve reliability in battlefield conditions.

## Contribution

The novel contribution is a comprehensive denoising and fusion framework for magnetic and inertial measurements to enhance stent location tracking accuracy.

## Key findings

- The fusion of magnetic and inertial measurements significantly reduces location tracking errors.
- Comprehensive denoising techniques improve the reliability of sensor measurements in dynamic environments.
- Validation experiments confirm the effectiveness of the proposed error correction methods.

## Abstract

This paper will introduce a location tracking system targeted on a stent when it is deployed into the human artery to achieve hemostasis. This system is proposed to be applied in emergent conditions such as treating injured soldiers on the battlefield where common surgical devices such as fluoroscopy systems are not available. The locating algorithm is based on both magnetic measurements and inertial measurements. The magnetic locating approach detects the sensor’s location in a coordinate system centered with the reference magnet source. The inertial locating approach integrates the linear acceleration and angular velocity measured by the sensor to obtain the angular and linear displacement during a time period. Measurements from all sensors are deeply fused to remove disturbances and noise that degrade the locating accuracy. The focus of this research is to identify all potential error-increasing factors and then provide solutions to correct them to enhance the location measurement reliability. Validation experiments for each improvement approach and the overall locating performance will be introduced.