Asymmetric Adhesive Substrate for Medical Device Alignment
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Solution Overview
Problem
Existing disposable adhesive substrates for medical devices, such as EMG electrodes, often fail to ensure proper alignment and electrical connection due to user error, leading to suboptimal device performance.
Innovation Solution
A disposable adhesive substrate with a rotationally asymmetric circumferential outline and conductive contact areas configured to match specific medical device configurations, ensuring correct orientation and attachment, thereby establishing a reliable electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the substrate is made with double adhesive layers on both sides, then the substrate can be easily attached to the medical device, but users may apply the substrate in the wrong orientation leading to incorrect alignment with electrodes
Solution Approach 1:
The substrate is designed with a rotationally asymmetric circumferential outline that does not possess rotational symmetry around any axis. This asymmetric shape ensures that the substrate can only be attached to the medical device in one correct orientation, preventing misalignment with the electrodes while maintaining ease of attachment through the double adhesive layer configuration
2Device complexity
If the conductive material is provided on only one side of the substrate, then the substrate structure is simplified, but users may attach the substrate with the conductive side facing away from the skin
Solution Approach 1:
The asymmetric circumferential outline of the substrate, combined with the positioning of conductive contact areas on one side, creates an inherently directional attachment system. The asymmetry ensures that when the substrate is attached to the medical device, the conductive side automatically faces the correct direction toward the skin, ensuring reliable electrical connection without increasing structural complexity
Solution Approach 2:
The substrate has different properties on different sides: one side has conductive contact areas for skin contact while the other side has only adhesive layers for device attachment. This local differentiation of function ensures correct orientation during attachment while maintaining overall structural simplicity
3Reliability
If the substrate is designed to match a specific electrode configuration, then the electrical connection is optimized, but the substrate cannot be reused on different medical devices with different configurations
Solution Approach 1:
The substrate is designed as a disposable component that is optimized for a specific electrode configuration. After use, the substrate is discarded rather than reused, ensuring that each substrate maintains optimal electrical connection performance for its intended application without the need for adaptation to different configurations
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 substrate ensures correct alignment and attachment to the medical device, enhancing the reliability of electrical connections and device performance by preventing improper installation.
Implementation Method 1
The substrate comprises at least a first adhesive, e.g. a first adhesive layer, on a first side of the substrate, e.g. configured for attaching the substrate to the medical device. The substrate may further comprise at least a second adhesive, e.g. a second adhesive layer, on a second opposite side of the substrate, preferably configured for attaching the substrate to the skin of a user of the medical device.
Implementation Method 2
The substrate may further comprise conductive contact areas, which may be configured for providing electrical connection between the electrodes and e.g. the skin of a user of the medical device.
Data Source
AI summary
A disposable adhesive substrate, a medical device and a charging station are provided. In particular the substrate may be adapted to be arranged on the medical device, which correspondingly may be charged in the charging station. The medical device may be used for monitoring and treatment of bruxism.