DEVICE FEATURES AND DESIGN ELEMENTS FOR LONG-TERM ADHESION

• US 20120310070A1
• Filed: 07/31/2012
• Published: 12/06/2012
• Est. Priority Date: 05/12/2010
• Status: Active Grant

• Current Assignee: iRhythm Technologies Incorporated
• Original Assignee: iRhythm Technologies Incorporated
• Inventors: Kumar, Uday N., Livingston, Peter H., Day, Mark J., Park, Shena H., Willis, William F., Righter, William H., Bahney, Timothy J.
• Granted Patent: US 8,538,503 B2
• Time in Patent Office: Days
• US Class Current: 600/391
• CPC Class Codes: A61B 2560/0406 specially shaped apparatus housings
• CPC Class Codes: A61B 2560/0468 Built-in electrodes
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/259 using conductive adhesive means, e.g. gels
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/291 for electroencephalography [EEG]
• CPC Class Codes: A61B 5/389 Electromyography [EMG]
• CPC Class Codes: A61B 5/6832 using adhesives A61B5/259 takes precedence
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/68335 including release sheets or liners
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

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.

Claims

1. An electronic device for long-term adhesion to a mammal, the device comprising:

a housing;

a rigid 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 positioned on a bottom surface of each of the wings, the electrodes electrically connected to the physiologic data collection circuit; and

an adhesive layer on the bottom surfaces of the wings and not on a bottom surface of the housing, wherein the adhesive layer provides adhesion to the surface of the mammal, and wherein the housing is unattached to the mammal when the electrodes are in contact with the mammal.

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 attached to the housing, wherein the 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 attaching to the housing.

8. The electronic device of claim 1, further comprising a second adhesive layer functioning as an adhesion guard protecting the adhesive.

9. The electronic device of claim 8, wherein the second adhesive layer adds adhesive surface area to the first adhesive layer to distribute forces over a larger area.

10. The electronic device of claim 1, wherein the adhesive comprises an adhesive that can absorb fluids.

11. The electronic device of claim 10, wherein the adhesive comprises a hydrocolloid adhesive.

12. The electronic device of claim 1, wherein the adhesive comprises a pressure-sensitive adhesive.

13. The electronic device of claim 12, wherein the pressure sensitive adhesive is selected from the group consisting of a polyacrylate, a polyisobutylene and a polysiloxane.

14. The electronic device of claim 1, further comprising;

an additional adhesive layer between and the wing and the adhesive layer; and

a material layer between and the wing and the adhesive layer.

15. The electronic device of claim 1, wherein the multiple wings comprise two wings extending from approximately opposite ends of the housing.

16. The electronic device of claim 15, further comprising at least one additional wing extending from the housing without overlapping the two wings.

17. The electronic device of claim 1, wherein the rigid physiologic data collection circuit extends along only a portion of a distance between the electrodes.

18. The electronic device of claim 1, wherein the rigid physiologic data collection circuit is configured to collect cardiac rhythm data from the mammal.

19. A device for monitoring cardiac rhythms of a mammal, the device comprising:

a floating section;

a skin adhering section extending laterally out from the floating section;

two electrodes disposed along a bottom surface of the skin adhering section at a sufficient distance apart from one another to detect cardiac rhythm signals from the mammal;

an adhesive layer disposed along the bottom surface of the skin adhering section except along portions of the bottom surface containing the electrodes;

electronics disposed in the floating section, wherein the electronics are more rigid than the skin adhering section, and wherein the electronics are configured to receive and store cardiac rhythm signals from the electrodes while the device is attached to the mammal; and

two electrical connections, wherein each electrical connection connects one of the electrodes with the electronics,

wherein, when the device is worn on the mammal, only the adhesive layer is directly attached to the mammal, and the floating section is not adhered to the mammal.

20. A device as in claim 19, wherein the skin adhering section includes two hinge portions, each hinge portion located adjacent to a connection of the skin adhering section with the floating section.