Wearable Injection Leak Sensing Pads for Dosage Protection
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Solution Overview
Problem
Liquid medicine injection devices are prone to leakage due to patient movement or exposure to excessive temperature/pressure, leading to unintended liquid loss or external liquid ingress, which can damage the device and disrupt precise dosage control.
Innovation Solution
A liquid medicine injection device equipped with a leakage sensing unit and processor that detects leaks through leakage sensing pads, determines the type and location of leakage, and notifies the user via alarms or remote communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the liquid medicine injection device is attached to the user's body for continuous injection, then the convenience and effectiveness of treatment is improved, but the risk of leakage due to excessive movement or external liquid ingress increases
Solution Approach 1:
The leakage sensing pads are pre-installed on the control module before the device is attached to the user's body. These pads are positioned to detect liquid contact in advance, allowing the system to identify potential leakage issues before they compromise the injection process or damage the device.
Solution Approach 2:
The sensing pads provide real-time feedback by generating leakage signals when they detect liquid contact. This feedback mechanism allows the processor to monitor the device's condition continuously and notify the user promptly, enabling timely intervention to prevent further leakage or damage.
2Device complexity
If the device operates without leakage detection, then the device complexity is reduced, but the damage from undetected leakage to the circuit board increases
Solution Approach 1:
The leakage sensing pads are implemented as simple, low-cost conductive patterns on the control module. These pads serve their protective function effectively and can be easily replaced or the device can be reset after detecting a leakage event, providing an economical solution to prevent expensive damage to the circuit board.
Solution Approach 2:
The sensing pads act as an intermediary element between the liquid medicine reservoir and the circuit board. When liquid contacts the pads, it creates a detectable signal that warns of potential damage before the liquid can reach and harm the circuit board, thus protecting the expensive components.
3Device complexity
If leakage is not detected in advance, then the device operation is simplified, but the precision of dosage control deteriorates
Solution Approach 1:
The sensing pads provide continuous feedback on the device's sealing integrity and liquid containment status. This feedback enables the processor to monitor whether the device is operating within normal parameters, ensuring precise dosage control by detecting any leakage that would compromise the accuracy of the injected amount.
Solution Approach 2:
The leakage detection system is in place and active before the injection process begins, allowing the device to detect and alert users of any leakage issues before they affect the dosage precision. This preliminary detection ensures that the full prescribed dosage is delivered accurately.
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
The device effectively prevents damage to the circuit board and ensures accurate dosage by promptly alerting users to leakage, allowing for timely intervention.
Implementation Method 1
a leakage sensing pad for generating a leakage signal when sensing a liquid... including a first pattern electrically connected to a power source, and a second pattern electrically connected to the processor
Data Source
AI summary
Embodiments of the present invention relate to a liquid medicine injection device that is attached to a user's body to inject a liquid medicine. In order to sense liquid leakage, the liquid medicine injection device includes: a leakage sensing unit mounted on a circuit board in the liquid injection device and comprising at least one leakage sensing pad for generating a leakage signal when sensing a liquid; and a processor mounted on the circuit board and electrically connected to the leakage sensing unit so as to receive the leakage signal and to determine whether a leakage has occurred, thereby notifying a user of information related to the leakage when the leakage has occurred.