Multi-Layer Conductive Circuit for Muscle Stimulation
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Solution Overview
Problem
Existing conductive circuits for delivering electrical impulses to the human or animal body are prone to durability issues, particularly in terms of peeling and stretching, which affects the correct targeting and effectiveness of muscle stimulation for conditions like urinary incontinence.
Innovation Solution
A conductive circuit design featuring multiple printed layers on a base, including non-conductive layers that overhang to enhance durability, with conductive layers encapsulated to prevent peeling and stretching, and a modular structure for flexible application on garments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple printed layers are used to deliver electromagnetic signals, then the effectiveness of muscle stimulation is improved, but the durability and resistance to peeling deteriorates
Solution Approach 1:
The patent transitions from a single-layer conductive circuit to a multi-layer printed circuit structure. The conductive layers are stacked vertically with non-conductive layers in between, creating a three-dimensional configuration that improves both signal delivery effectiveness and durability against peeling and stretching.
Solution Approach 2:
The circuit employs composite material structure combining conductive printed layers (for electromagnetic signal delivery) with non-conductive printed layers (for structural support and peeling resistance). This composite approach allows the conductive elements to maintain electrical functionality while the non-conductive layers provide mechanical durability.
2Strength
If conductive layers are encapsulated in multiple printed layers, then resistance to peeling is improved, but the complexity of the circuit structure increases
Solution Approach 1:
The circuit is segmented into distinct functional layers: conductive printed layers for electrical signal delivery and non-conductive printed layers for structural support. This segmentation allows each layer to perform its specific function optimally while simplifying the overall manufacturing process through modular layer-by-layer construction.
Solution Approach 2:
The non-conductive printed layers act as flexible protective shells that encapsulate the conductive layers. These thin film structures provide peeling resistance and mechanical protection while maintaining the flexibility needed for application on garments and movement of the underlying body parts.
3Adaptability or versatility
If the circuit is made stretchable for garment application, then the adaptability to body contours is improved, but the durability against stretching deteriorates
Solution Approach 1:
The circuit structure is designed to be dynamic and adaptable. The multi-layer printed configuration allows the circuit to stretch and conform to body contours while the non-conductive layers provide structural reinforcement that maintains electrical connectivity and prevents delamination during stretching movements.
Solution Approach 2:
The patent utilizes materials and printing techniques that allow the circuit parameters (such as layer adhesion strength, material elasticity, and structural integrity) to change in response to stretching. The non-conductive layers are designed with specific mechanical properties that enable the circuit to accommodate body movement while maintaining durability.
Data Source
AI summary
In general terms, the invention provides a circuit for de-livering an electromagnetic signal to a human or animal body via contact with the skin of the body. The circuit comprises a plurality of printed layers provided on a base. The plurality of printed layers includes a first printed layer, and a second printed layer having a portion that overlays the first printed layer and a portion that overhangs the first printed layer. Optionally the portion that overhangs the first printed layer contacts the base or another of the printed layers of the plurality of printed layers.