Hall Effect Display Control for Sterile Medical Interfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medical devices lack a sanitary and safe user interface control mechanism that allows for efficient interaction without contaminating the display surface.
Innovation Solution
A two-part assembly medical device incorporating a hall effect sensor and magnets, enabling rotation-based control of the display through magnetic interaction, with haptic feedback for confirmation, reducing the need for direct contact with the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional touchscreen interface is used for medical device control, then ease of operation is improved, but contamination risk increases due to direct contact with the display surface
Solution Approach 1:
The patent introduces a magnetic field as an intermediary between the user's manual input and the device's electronic system. The user rotates a magnetic element externally, which generates a magnetic field detected by the hall effect sensor, thereby controlling the display without touching it. This mediator (magnetic field) transmits control signals while keeping the display surface uncontaminated.
Solution Approach 2:
The patent replaces the traditional mechanical contact-based touchscreen interface with a magnetic field-based sensing system. Instead of requiring physical contact with capacitive sensors, the system uses a hall effect sensor to detect changes in magnetic field caused by rotation of a magnetic element, thus substituting mechanical contact with magnetic field interaction.
2Ease of operation
If direct contact control is used, then ease of operation is improved, but device sterility and safety are compromised
Solution Approach 1:
The magnetic field serves as a non-contact intermediary that allows the user to interact with the device controls without breaking sterility barriers. The magnetic element can be rotated externally through the device housing, and its magnetic field is detected internally by the hall effect sensor, maintaining the sterile boundary while enabling control.
Solution Approach 2:
The system replaces contact-based mechanical control interfaces with a magnetic sensing mechanism. The hall effect sensor detects magnetic field variations caused by user rotation of the magnetic element, eliminating the need for physical contact with the display or control buttons, thereby preserving device sterility.
3Object-affected harmful factors
If a magnetic field-based control system is implemented, then contamination risk is reduced, but device complexity increases due to additional sensors and components
Solution Approach 1:
The hall effect sensor serves multiple functions: it detects the presence of the magnetic element, determines the direction of rotation, and measures the magnitude of rotation. This multi-functionality reduces the need for separate sensors for different control inputs, thereby limiting the increase in device complexity despite the non-contact control mechanism.
Solution Approach 2:
The magnetic element itself generates the magnetic field that the hall effect sensor detects, eliminating the need for separate actuators or power sources for the control mechanism. The user's manual rotation directly creates the sensing signal, making the control system self-powered and reducing overall device complexity.
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
Provides a sanitary and efficient user interface control mechanism that minimizes contamination risk while allowing intuitive control of medical device functions.
Implementation Method 1
a hall effect sensor, the first portion and the second portion being joined together in such a way that rotation of the first portion relative to the second portion causes the first magnet and the hall effect sensor to interact with one another
Data Source
AI summary
Devices with hall effect user interface control are disclosed herein. An example device includes a first portion having an energy storage module and a first magnet disposed on a terminal end of the first portion. A second portion having a display and a hall effect sensor, the first portion and the second portion being joined together in such a way that rotation of the first portion relative to the second portion causes the first magnet and the hall effect sensor to interact with one another in such a way that a user can control the display.