Device features and design elements for long-term adhesion
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.
1. An electronic device for long-term adhesion to a mammal, the device comprising:
a housing;
a physiologic data collection circuit contained in the housing;
multiple wings extending laterally from the housing without overlapping, wherein each wing includes a hinge portion adjacent the housing;
an electrode integral with a bottom surface of each of the wings so as to be inseparable from the wings during use of the device, the electrodes electrically connected to the physiologic data collection circuit;
a first adhesive layer on the bottom surfaces of the wings and not on a bottom surface of the housing, wherein the first adhesive layer provides adhesion to the skin of the mammal, and wherein the housing is attached to the mammal's skin only via the first adhesive layer and is not directly attached to the skin of the mammal when the electrodes are in contact with the mammal; and
a second adhesive layer functioning as an adhesion guard protecting the first adhesive layer.
2. The electronic device of claim 1 , wherein the wings are more flexible than the housing.
3. The electronic device of claim 1 , wherein the wings and the housing are made from the same material.
4. The electronic device of claim 1 , wherein the wings and the housing are made from different materials.
5. The electronic device of claim 1 , wherein each hinge portion is thinner than an adjacent portion of the wing of which it is a part.
6. The electronic device of claim 1 , further comprising a flap connected to each wing, the flaps extending below the housing but not directly attached to the bottom surface of the housing, wherein the first adhesive layer extends onto a bottom surface of each flap.
7. The electronic device of claim 6 , further comprising a connector segment configured to connect the flaps together without directly attaching to the bottom surface of the housing.
8. The electronic device of claim 1 , wherein the second adhesive layer adds adhesive surface area to the first adhesive layer to distribute forces over a larger area.
9. The electronic device of claim 1 , wherein the first adhesive layer comprises an adhesive that can absorb fluids.
10. The electronic device of claim 9 , wherein the first adhesive layer comprises a hydrocolloid adhesive.
11. The electronic device of claim 1 , wherein the first adhesive layer comprises a pressure-sensitive adhesive.
12. The electronic device of claim 11 , wherein the pressure sensitive adhesive is selected from the group consisting of a polyacrylate, a polyisobutylene and a polysiloxane.
13. The electronic device of claim 1 , further comprising;
a third adhesive layer between the wing and the first adhesive layer; and
a material layer between the wing and the first adhesive layer.
14. The electronic device of claim 1 , wherein the multiple wings comprise two wings extending from approximately opposite ends of the housing.
15. The electronic device of claim 14 , further comprising at least one additional wing extending from the housing without overlapping the two wings.
16. The electronic device of claim 1 , wherein the physiologic data collection circuit extends along only a portion of a distance between the electrodes.
17. The electronic device of claim 1 , wherein the physiologic data collection circuit is configured to collect cardiac rhythm data from the mammal.