Device features and design elements for long-term adhesion
Inventors
Kumar, Uday N. • Livingston, Peter H. • Day, Mark J. • Park, Shena Hae • Willis, William F. • Righter, William H.
Assignees
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Publication Number
US-12303277-B2
Publication Date
2025-05-20
Expiration Date
Abstract
An electronic device for long-term adhesion to a mammal includes a housing with an electronic component. The electronic device may include a first wing and a second wing, each being integrally formed with the housing. An electrode is positioned on a bottom surface of each of the wings, the electrodes electrically connected to the electronic component. An adhesive layer is provided for adhesion to a surface of the mammal. The adhesive layer may cover a portion of the bottom surfaces of the wings but generally does not cover the electrode or a bottom surface of the housing. A method of applying an electronic device to a mammal includes removing first and second adhesive covers from first and second wings of the electronic device to expose an electrode and an adhesive coated on a bottom surface of each wing.
Core Innovation
The invention relates to an electronic device for long-term adhesion to a user that includes a housing comprising a physiologic data collection circuit. The device includes an electrode-supporting section with an electrode positioned on a bottom surface of the electrode-supporting section, where the electrode is electrically connected to the physiologic data collection circuit, and a lower adhesive layer positioned on the bottom surface to provide adhesion to the skin of the user.
A key structural aspect is that the first substrate layer is positioned over the electrode and extends horizontally away from the housing beyond a boundary of the electrode. The second substrate layer is positioned over the first substrate layer and extends horizontally beyond a boundary of the first substrate layer.
The described embodiments emphasize maintaining electrode contact and device operation for more than about 24 hours through design variations related to adhesive placement and structural compliance. Additional features described include watertight enclosures for electronics, hinge portions for bending, wiring slack, undulations, or coils for flexion tolerance, diffusion barrier layers to prevent adhesive migration, optional connector segment arrangements joining flaps with holes, and multi-cover or strip adhesive release techniques intended to extend adhesion life.
Claims Coverage
The independent claim is clm-00001. It includes five inventive features centered on a housing with a physiologic data collection circuit, an electrode-supporting section with stacked substrate layers and a lower adhesive layer for skin adhesion, and horizontal extension relationships between the electrode and substrate boundaries.
Long-term skin-adhered electronic device with physiologic data collection circuit
An electronic device for long-term adhesion to a user, comprising a housing comprising a physiologic data collection circuit.
Electrode-supporting section with stacked substrate layers and lower adhesive for skin adhesion
An electrode-supporting section comprising a first substrate layer, a second substrate layer, and a lower adhesive layer positioned on a bottom surface, the lower adhesive layer providing adhesion to the skin of the user.
Electrode positioned on bottom surface electrically connected to the physiologic data collection circuit
An electrode positioned on the bottom surface of the electrode-supporting section, the electrode electrically connected to the physiologic data collection circuit.
First substrate layer positioned over the electrode and extending beyond the electrode boundary
The first substrate layer is positioned over the electrode and extends horizontally away from the housing beyond a boundary of the electrode.
Second substrate layer positioned over the first substrate layer and extending beyond the first substrate boundary
The second substrate layer is positioned over the first substrate layer and extends horizontally beyond a boundary of the first substrate layer.
Across the independent claim, the coverage centers on a long-term skin-adhered electronic patch architecture: a housing with a physiologic data collection circuit, an electrode-supporting section with stacked substrate layers and a lower adhesive that adheres to skin, and specific horizontal extension relationships where the first substrate layer extends beyond the electrode boundary and the second substrate layer extends beyond the first substrate boundary.
Stated Advantages
Maintain electrode contact and device operation for more than about 24 hours.
Support long-term adhesion while accommodating user movement and skin bending.
Documented Applications
Physiologic monitoring, including ECG sensing as an example of a physiologic measurement obtained by the device.
Cardiac rhythm monitoring, as specified by dependent claim refinements.
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