Hall Effect Sensor Detection of Ingested Batteries
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for detecting ingested batteries or magnets in children are often invasive, inconvenient, and lack accuracy, particularly in situations where x-ray imaging is not readily available, leading to delayed or misdiagnosed severe injuries.
Innovation Solution
A noninvasive detection system utilizing Hall effect sensors and a processor to generate detection signals based on magnetic field measurements, allowing for quick and accurate identification of ingested batteries or magnets through a portable, user-friendly device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If x-ray imaging is used to detect ingested batteries or magnets, then detection accuracy is improved, but device complexity and availability are worsened due to requiring specialized medical equipment
Solution Approach 1:
The patent replaces the complex x-ray imaging system with a simple magnetic field detection system using Hall effect sensors. The handheld device detects the magnetic field signature of ingested batteries or magnets directly through the body, eliminating the need for specialized radiography equipment while maintaining detection accuracy.
Solution Approach 2:
The patent uses the magnetic field as an intermediary to detect the presence of ingested batteries or magnets. Instead of directly imaging the object, the system measures disturbances in the ambient magnetic field caused by the ingested item, providing a simplified detection mechanism that does not require complex medical imaging equipment.
2Reliability
If traditional diagnostic procedures are followed, then comprehensive evaluation is improved, but time to detection is worsened due to multiple evaluation steps
Solution Approach 1:
The patent performs preliminary magnetic field detection at the point of care before proceeding to full diagnostic evaluation. The handheld device can quickly screen for ingested batteries or magnets, allowing clinicians to identify high-risk cases immediately and proceed directly to appropriate treatment without waiting for x-ray scheduling and processing.
Solution Approach 2:
The patent divides the diagnostic process into two segments: an initial rapid screening using the magnetic field detection device, and a subsequent comprehensive evaluation using traditional methods if needed. This segmentation allows for quick identification of critical cases while maintaining thorough evaluation for confirmation and treatment planning.
3Measurement precision
If invasive detection methods are used, then detection capability is improved, but ease of operation is worsened due to procedural complexity
Solution Approach 1:
The patent enables the detection device to be operated independently by medical professionals without requiring specialized training in radiography or complex diagnostic procedures. The handheld device automatically detects and indicates the presence of ingested batteries or magnets through simple magnetic field measurements, making the procedure as easy as holding the device against the patient's body.
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
Enables rapid and accurate detection of ingested batteries or magnets, reducing the risk of severe injuries by providing a portable, convenient, and unobtrusive solution for medical professionals and consumers.
Implementation Method 1
A noninvasive detection system utilizing Hall effect sensors and a processor to generate detection signals based on magnetic field measurements
Data Source
AI summary
Representative apparatus, method, and system embodiments are disclosed for non-invasive detection an ingested battery or magnet in a human or other animal subject. The various apparatus embodiments include one or more Hall effect sensors, arranged in a hand-held embodiment or arranged along a flexible strip having an adhesive. A calibration may be determined or reference or calibration field measurements may be generated. A flexible strip is arranged, or the hand-held embodiment is moved, over the esophagus of the subject to generate target magnetic field measurements. The presence of an ingested battery or magnet is detected when one or more target magnetic field measurements (or gradient) is or are greater than or equal to a first predetermined threshold, or when a sign reversal occurs for a difference between target and reference measurements. The various apparatus and system embodiments may also include a monitor for signal processing and display of results.