Wearable device with conductive traces and insulator
The present disclosure relates to a wearable device that includes a housing, battery terminal connector, conductive traces, and an insulator for recording signals. The device may include a housing enclosing a circuit board and a battery. The device may include two conductive traces electrically connected to terminals of the battery and an insulator separating the conductive traces. The battery terminal connector can present both the conductive traces to the outer surface for coupling to a circuit board. The device can assess the physiological signals to infer a likelihood of arrhythmia of a user.
1. A wearable device for monitoring physiological signals in a user, the wearable device comprising:
a housing enclosing a hardware processor and at least one battery, the at least one battery comprising a first terminal on a first side of the at least one battery and a second terminal on a second side of the at least one battery;
an adhesive flexible wing extending from the housing, the adhesive flexible wing coupled to an electrode configured to detect physiological signals; and
a battery terminal connector comprising:
a first conductive trace disposed on a first surface of a first portion of the battery terminal connector and on a second surface of a second portion of the battery terminal connector, the first conductive trace being configured to electrically connect to the first terminal of the at least one battery;
a second conductive trace disposed on a first surface of the second portion and on the second surface of the second portion, the second conductive trace being configured to electrically connect to the second terminal of the at least one battery; and
an insulator disposed between the first and second surfaces of the second portion.
2. The wearable device of claim 1 , wherein the insulator is separating the first conductive trace from the second terminal of the at least one battery and separating the first conductive trace from the second conductive trace.
3. The wearable device of claim 1 , wherein the battery terminal connector is configured to present both the at least one first and second conductive traces on the second surface for electric coupling to the hardware processor.
4. The wearable device of claim 1 , wherein the first surface of the first portion being configured to face toward the at least one battery, and the first surface of the second portion extending over the first portion, the second portion, and a connecting portion of the battery terminal connector, the second surface being configured to face away from the at least one battery.
5. The wearable device of claim 1 , wherein the first portion is a bottom portion and the second portion is a top portion of the battery terminal connector.
6. The wearable device of claim 1 , wherein the first side is a bottom side and the second side is a top side of the at least one battery.
7. The wearable device of claim 1 , wherein the second conductive trace is disposed on an inner surface and an outer surface of the insulator and wherein the inner and outer portions of the second conductive trace are electrically connected by at least one via extending through the insulator and filled with conductive material.
8. The wearable device of claim 7 , wherein the conductive material of the at least one via is different than the material for the insulator and the first and second conductive traces.
9. The wearable device of claim 7 , wherein the conductive material of the at least one via is the same as the material for the first and second conductive traces.
10. The wearable device of claim 1 , wherein the first conductive trace includes one or more first holes, the second conductive trace includes one or more second holes, the one or more first holes align with the one or more second holes, wherein the first and second conductive trace are electrically connected by at least one via extending through the one or more first holes and the one or more second holes.
11. The wearable device of claim 1 , wherein the first conductive trace includes a first group of holes and a second group of holes, the second conductive trace includes a third group of holes and a fourth group of holes, the first group of holes align with the third group of holes, the second group of holes align with the fourth group of holes, wherein the first and second conductive trace are electrically connected by at least one via extending through the first, second, third, and fourth group of holes.
12. The wearable device of claim 1 , wherein the insulator is not disposed on the first portion of the battery terminal connector.
13. The wearable device of claim 1 , wherein the second conductive trace is disposed on an outer surface of the insulator but extends beyond an edge of the insulator on the second portion of the battery terminal connector to form an extension configured to make electrical contact with the second terminal.
14. The wearable device of claim 1 ,
wherein the first and second conductive traces of the battery terminal connector are arranged substantially in a same horizontal plane as a contact region of a trace layer for electric coupling to the hardware processor.
15. The wearable device of claim 14 , wherein the trace layer comprises a central aperture in an area positioned within the housing and the first and second conductive traces of the battery terminal connector are positioned within the central aperture.
16. The wearable device of claim 14 , wherein the hardware processor is positioned above the trace layer and wherein the hardware processor is electrically coupled to the contact region of the trace layer and the first and second conductive traces of the battery terminal connector by a plurality of spring contacts.
17. The wearable device of claim 16 , wherein the hardware processor is spaced apart from the trace layer by a spring contact spacer comprising holes allowing the spring contacts to extend through the spring contact spacer, the spring contact spacer being configured to maintain a substantially consistent separation distance between the hardware processor and the contact region of the trace layer as well as between the hardware processor and the first and second conductive traces of the battery terminal connector.
18. The wearable device of claim 1 , further comprising a spring positioned beneath the first side of the at least one battery, the spring being configured to bias the first and second conductive traces of the battery terminal connector into electrical contact with the hardware processor.
19. The wearable device of claim 18 , wherein the spring is a wave spring.
20. The wearable device of claim 1 ,
wherein the housing further comprises:
a column extending downward from a top housing and a post extending upward from a bottom housing, the post being received in the column or the column being received in the post, wherein the column and post are press-fit together and configured to resist internal forces within the housing that promote separating the top housing from the bottom housing.
21. The wearable device of claim 20 , further comprising a spring or foam positioned between a bottom surface of the bottom housing and the hardware processor, the spring configured to subsume tolerance stack within the housing.
22. The wearable device of claim 21 , wherein the housing encloses the at least one battery and the spring is further configured to bias the first and second conductive traces electrically connected to the first and second battery terminals respectively and a trace electrically coupled to the electrode into electrical contact with the hardware processor.
23. The wearable device of claim 22 , wherein the electrical contact is made via a plurality of spring contacts.
24. The wearable device of claim 21 , further comprising a spacer positioned between the hardware processor and the at least one battery, the spacer being configured to maintain the at least one battery at a constant separation distance from the hardware processor.
25. The wearable device of claim 1 , wherein the adhesive extension extending from the housing between a top housing and a bottom housing and configured to conform to a surface of the user, the adhesive extension having a bottom surface and a top surface, wherein the housing comprises the top housing coupled to the bottom housing.
26. The wearable device of claim 1 , wherein the electrode is in electrical communication with the hardware processor and is configured to be positioned in conformal contact with a surface of the user to detect the physiological signals.
27. The wearable device of claim 1 , wherein the battery terminal connector further comprises a connecting portion configured to extend from the first portion to the second portion, wherein the first portion is configured to contact the first side of the at least one battery, the second portion configured to contact the second side of the battery; and the at least one battery terminal connector comprises the first surface extending over the first portion, second portion, and connecting portion of the battery terminal connector.
28. A wearable device for monitoring physiological signals in a user, the wearable device comprising:
a housing enclosing a hardware processor and at least one battery, the at least one battery comprising a first terminal on a first side of the battery and a second terminal on a second side of the at least one battery; and
a battery terminal connector comprising:
a first conductive trace disposed on a first surface of a first portion of the battery terminal connector and on a second surface of a second portion of the battery terminal connector, the first conductive trace being configured to electrically connect to the first terminal of the at least one battery;
a second conductive trace disposed on a first surface of the second portion and on the second surface of the second portion, the second conductive trace being configured to electrically connect to the second terminal of the at least one battery; and
an insulator disposed between the first and second surfaces of the second portion, the insulator separating the first conductive trace from the second terminal of the at least one battery and separating the first conductive trace from the second conductive trace.
29. The wearable device of claim 28 , the wearable device comprising:
an adhesive flexible wing extending from the housing between a top housing and a bottom housing and configured to conform to a surface of the user, the adhesive flexible wing having a bottom surface and a top surface, wherein the housing comprises the top housing coupled to the bottom housing;
an electrode coupled to the adhesive flexible wing, the electrode in electrical communication with the hardware processor and being configured to be positioned in conformal contact with the surface of the user to detect the physiological signals; and
an adhesive layer coupled to the bottom surface of the adhesive flexible wing for adhering the wearable device to the user.
30. A wearable device for monitoring physiological signals in a user, the wearable device comprising:
a housing enclosing a hardware processor and at least one battery, the at least one battery comprising a first terminal on a first side of the at least one battery and a second terminal on a second side of the at least one battery;
an adhesive extension extending from the housing, the adhesive extension coupled to a sensor configured to detector physiological signals;
and
a battery terminal connector comprising:
a first conductive trace disposed on a first surface of a first portion of the battery terminal connector and on a second surface of a second portion of the battery terminal connector, the first conductive trace being configured to electrically connect to the first terminal of the at least one battery;
a second conductive trace disposed on a first surface of the second portion and on the second surface of the second portion, the second conductive trace being configured to electrically connect to the second terminal of the at least one battery; and
an insulator disposed between the first and second surfaces of the second portion.