Health monitoring systems and methods
Systems, methods and devices for reducing noise in health monitoring including monitoring systems, methods and/or devices receiving a health signal and/or having at least one electrode or sensor for health monitoring.
1. A device for monitoring one or more physiological parameters, the one or more physiological parameters including blood oxygenation, the device being adapted to be adhered to the skin of a subject for the physiological parameter monitoring; the device comprising:
a substrate;
a conductive sensor connected to the substrate;
a plurality of pulse oximetry sensors connected to the substrate, and,
a plurality of light sources for one or more wavelengths; and,
an encapsulant that is configured to encapsulate the sensor, the plurality of pulse oximetry sensors and the plurality of light sources and is in operative contact with the sensor, the plurality of pulse oximetry sensors and the plurality of light sources and is configured for light transmission therethrough and to not allow an interference airgap between the sensor, the plurality of pulse oximetry sensors and the plurality of light sources and the encapsulant, providing no internal reflective surface;
the encapsulant also being configured to be disposed in operative contact with the skin of a subject without any other cover between the skin and the encapsulant; and,
the encapsulant also being configured to provide at least one radius of curvature of at or between 20 mm and 40 mm.
2. A device according to claim 1 the plurality of pulse oximetry sensors and light sources being configured to provide for interrogation of a wider area of capillary bed in order to reduce local motion artifact effects; wider area defined by being wider than achievable by a single sensor or a single light source per wavelength.
3. A device for reducing noise in health monitoring including a wearable health monitoring device having at least one sensor for health monitoring;
the wearable health monitoring device having:
a composite adhesive having at least one conductive portion applied adjacent the sensor; and, including
one or more structural adaptations for the at least one sensor for receiving signals with reduced noise;
the one or more structural adaptations including a convex lens for light transmission therethrough;
the convex lens being an encapsulant that encapsulates the sensor and is in operative contact with the sensor and is configured for light transmission therethrough and to not allow an interference airgap between the sensor and the encapsulant, providing no internal reflective surface;
the encapsulant also being configured to be disposed in operative contact with the skin of a subject without any other cover to be disposed between the skin and the encapsulant; and,
the encapsulant also being configured to provide at least one radius of curvature of at or between 20 mm and 40 mm.
4. A device according to claim 3 the convex lens being configured to be disposed in operative contact with a wearer's skin.
5. A device according to claim 3 the convex lens being configured to be disposed in operative contact with a wearer's skin at or adjacent the wearer's/user's forehead or chest.
6. A device according to claim 3 further comprising one or more LEDs, the convex lens encapsulant being configured to encapsulate the one or more LEDs.
7. A device according to claim 3 the convex lens encapsulant being configured to encapsulate the one or more LEDs and being in operative contact with at least one of the one or more LEDs not allowing an interference airgap between the at least one of the one or more LEDs and the encapsulant.
8. A device according to claim 3 the convex lens being one or more of clear, colorless, silicone and medical grade silicone.
9. A device according to claim 8 the convex lens being made from medical grade silicone that is one or more of clear, colorless, soft, low durometer, tacky gel, or has high-tack adhesives embedded on both sides.
10. A device according to claim 9 the silicone comprising one or both:
conformance of the lens to one or both the electronic sensors and skin, or
exhibition of motion artifact reduction by limiting movement between the skin-lens-sensor interface.
11. A device according to claim 9 the convex lens being configured to be trapped between layers of the composite adhesive strip of a wearable health monitoring device, with a raised portion the size of a rectangular opening in the adhesive strip that allows the convex lens to protrude slightly on the patient side of the adhesive strip.
12. A device according to claim 3 the one or more structural adaptations being used for pulse oximetry.
13. A device according to claim 3 the one or more structural adaptations being disposed for and configured for maintained indented operative contact with the wearer's/user's skin.
14. A device according to claim 3 being configured for providing for transmission of LED waves therethrough to the wearer's skin without interfering transmission thereinto.
15. A device according to claim 14 being configured for providing for reception of reflected transmissions of LED waves therethrough from the wearer's skin to the sensor without interfering transmission therethrough.