Needle Guide Calibration and Feedback for Imaging Alignment
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Solution Overview
Problem
Existing needle placement technologies lack standardized calibration methods to ensure alignment with imaging systems, leading to variability and inaccuracies in medical procedures such as biopsies and minimally invasive surgeries.
Innovation Solution
A needle guiding device with real-time monitoring and feedback, integrated sensors (accelerometer, gyroscope, magnetometer), and a calibration tool to align with imaging system coordinates, providing continuous alignment feedback through visual, auditory, and haptic means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional needle placement methods are used, then practitioner skill and experience determine outcomes, but variability and inaccuracies increase in complex procedures
Solution Approach 1:
The device incorporates real-time feedback through visual, auditory, and haptic signals that continuously monitor needle orientation and provide corrective guidance to the practitioner, ensuring consistent alignment with pre-planned trajectories regardless of practitioner skill level
Solution Approach 2:
The invention replaces reliance on practitioner skill and experience with an automated sensor-based system that uses accelerometers, gyroscopes, and magnetometers to objectively measure and guide needle placement, eliminating human variability
2Ease of operation
If existing guidance technologies are used, then some guidance is provided, but lack of standardized calibration leads to misalignment with imaging systems
Solution Approach 1:
The device performs preliminary calibration against imaging system coordinates before the actual needle placement procedure, establishing an accurate reference framework that ensures subsequent measurements and guidance are precisely aligned with the imaging data
Solution Approach 2:
The invention introduces a calibration tool as an intermediary between the needle guiding device and the imaging system, enabling standardized alignment and coordinate system transformation that ensures accurate correspondence between the physical device and digital imaging
3Measurement precision
If real-time monitoring and feedback systems are integrated, then needle alignment precision is improved, but device complexity increases
Solution Approach 1:
The device merges multiple sensor types (accelerometer, gyroscope, magnetometer) and feedback modalities (visual, auditory, haptic) into a single integrated unit, reducing the need for multiple separate devices and simplifying the overall system architecture while maintaining high precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances precision and accuracy of needle insertion by ensuring real-time alignment with pre-planned trajectories, reducing procedural errors and improving outcomes in medical procedures.
Implementation Method 1
The device is equipped with multiple sensors, including an accelerometer (104)
Implementation Method 2
gyroscope (105)
Implementation Method 3
magnetometer (106)
Data Source
AI summary
A needle guiding device for imaging-guided procedures features sensors to monitor the needle's attitude and a calibration tool fixed to the imaging machine for alignment. The device offers customizable feedback, including visual, audible, and haptic alerts, to maintain the planned insertion trajectory. The calibration tool, which may include reference surfaces that are perpendicular, non-perpendicular, or feature a groove, ensures accurate alignment. The device can log procedural data and is compatible with both single-use and reusable configurations. It is designed for use with one needle at a time, with options to use multiple devices for multiple needles or sequentially against different needles.