Tap Sensor IMD State Transition Energy Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing implantable medical devices (IMDs) lack an efficient method to transition from a dormant state to an active communication state in response to user-initiated impact events, such as taps, which can trigger data recording or transmission, leading to unnecessary energy consumption and inefficiency.
Innovation Solution
Incorporating a tap sensor with an impact event detector and processing unit that analyzes detection signals to determine if an impact event is a communication-directed action, causing the IMD to transition from a dormant to an active state, allowing the communication component to listen for incoming communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the communication component is continuously active to receive commands, then the IMD can respond quickly to user input, but energy consumption increases significantly
Solution Approach 1:
The tap sensor detects user input in advance and triggers the communication component to activate only when needed, rather than keeping it continuously active. This preliminary detection allows the system to prepare for communication only when a tap event occurs, reducing overall energy consumption while maintaining quick response capability.
Solution Approach 2:
The communication component operates in a periodic manner, alternating between dormant and active states based on tap sensor triggers. Instead of continuous operation, the component activates periodically only when tap events are detected, significantly reducing energy consumption while maintaining responsiveness to user commands.
2Ease of operation
If the IMD transitions to active state upon any impact event, then user commands can be executed, but false triggers from non-communication impacts waste energy and time
Solution Approach 1:
The processing unit analyzes characteristics of impact events (such as force magnitude, duration, or pattern) and provides feedback to determine whether the tap represents a valid communication command. This feedback mechanism filters out false triggers from non-communication impacts, ensuring energy is only consumed when legitimate commands are detected.
Solution Approach 2:
The system changes the parameters used for impact detection, analyzing specific characteristics such as force magnitude, impact duration, or temporal patterns to distinguish valid commands from false triggers. By adjusting these detection parameters, the system can reliably differentiate between intentional user commands and incidental impacts.
3Loss of energy
If the communication component remains dormant most of the time, then energy efficiency improves, but the time to activate and respond to commands increases
Solution Approach 1:
The tap sensor performs preliminary detection of user input and immediately triggers the communication component to activate as soon as a valid tap is detected. This preliminary action eliminates unnecessary delays, allowing the system to transition quickly from dormant to active state only when needed, thus minimizing activation time while maintaining energy efficiency.
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
This solution enables IMDs to conserve energy by only activating communication components upon intentional user input, improving efficiency and reducing unnecessary data transmission, while allowing for precise control over data recording and transmission.
Implementation Method 1
the tap sensor comprising at least one of an accelerometer and an inertial measurement unit (IMU)
Implementation Method 2
the tap sensor comprising at least one of an accelerometer and an inertial measurement unit (IMU)
Data Source
AI summary
An implantable medical device (IMD) includes a tap sensor configured to detect an impact event occurring on the surface of the patient's body. The tap sensor is configured to determine whether the impact event (which may be, for example, a tap of a finger or hand upon a surface of the body) likely is a communication directed at the tap sensor. In response to determining that the impact event likely is a communication directed at the tap sensor, the IMD is configured to transition from a first state to a second state.