Display on a bandage-type monitoring device

• US 10,105,100 B2
• Filed: 07/28/2015
• Issued: 10/23/2018
• Est. Priority Date: 07/28/2015
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Verily Life Sciences LLC (Alphabet Inc.)
• Inventors: Biederman, William James, Otis, Brian, Liu, Zenghe, Wasson, Jaclyn Leverett
• Primary Examiner(s): Agahi, Puya
• Application Number:
  US14/810,588
• Publication Number:
  US 20170027514A1
• Time in Patent Office: 1,183 Days
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 2560/0487 Special user inputs or interfaces
• CPC Class Codes: A61B 5/1451 for interstitial fluid
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/6832 using adhesives A61B5/259 takes precedence
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: G06F 1/1635 Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 1/1656 Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203

Abstract

A body-mountable device includes a flexible substrate configured for mounting to a skin surface. The flexible substrate is configured to be adhered or otherwise mounted to the skin in a manner that minimally impacts activities of the body. The device includes a flexible display configured to provide indications to a user, e.g., indications of sensor readings, medical alerts, or operational states of the device. The display could be operated on a very low power budget, e.g., the display could be operated intermittently. In some examples, the display could include an e-paper display or similar low power display elements. In some examples, elements of the display, e.g., electrodes of a multi-segment display, could be formed on the flexible substrate such that additional elements of the display, e.g., a layer of display medium and a layer of transparent conductor, could be adhered or otherwise attached to the formed elements.

Claims

1. A body-mountable device comprising:

a flexible substrate, wherein the flexible substrate is configured to be mounted to a skin surface;

a multi-segment display disposed on the flexible substrate, wherein the multi-segment display comprises a plurality of electrodes disposed on the flexible substrate, a transparent conductive layer, and a display medium disposed between the plurality of electrodes and the transparent conductive layer, and wherein each electrode in the plurality of electrodes corresponds to a respective segment of the multi-segment display;

a sensor probe, wherein a first end of the sensor probe is attached to the flexible substrate, wherein a second end of the sensor probe is configured to extend beneath the skin surface to contact interstitial fluid;

a sensor configured to detect a physiological property, wherein the sensor is disposed at the second end of the sensor probe, and wherein the physiological property comprises a property of an analyte in the interstitial fluid; and

a controller, wherein the controller is disposed on the flexible substrate, wherein the controller is electrically coupled to the display and the sensor, wherein the controller is configured to perform controller operations comprising;

operating the sensor to detect the physiological property; and

operating the display to provide an indication related to the detected physiological property.

2. The body-mountable device of claim 1, wherein the sensor comprises an electrochemical sensor.

3. The body-mountable device of claim 1, wherein at least a portion of the multi-segment display is configured as a multi-segment numerical display in which each segment of the multi-segment numerical display corresponds to a respective electrode in the plurality of electrodes.

4. The body-mountable device of claim 1, wherein at least a portion of the multi-segment display is configured as a multi-segment display that is configured to indicate a trend and in which each segment of the multi-segment display corresponds to a respective electrode in the plurality of electrodes, wherein operating the sensor to detect the physiological property comprises operating the sensor to detect the physiological property at two or more different points in time, and wherein the controller operations further comprise:

determining a trend in the physiological property over time based on the detected physiological property at two or more different points in time, wherein operating the display to provide an indication related to the detected physiological property comprises operating the display to indicate the determined trend.

5. The body-mountable device of claim 1, wherein the display further comprises a transparent flexible polymer layer, wherein the transparent flexible polymer layer is disposed on a side of the transparent conductive layer opposite the display medium, and wherein the transparent flexible polymer layer, the transparent conductive layer, and the display medium are attached to the flexible substrate and the electrodes by a layer of adhesive.

6. The body-mountable device of claim 1, wherein the display medium comprises charged pigment particles.

7. The body-mountable device of claim 6, wherein operating the display comprises applying a voltage between the transparent conductive layer and at least one electrode of the plurality of electrodes, wherein the applied voltage is between 4 volts and 10 volts.

8. The body-mountable device of claim 1, further comprising:

a touch sensor, wherein the controller is electrically coupled to the touch sensor, and wherein the controller operations further comprise operating the touch sensor to receive an input.

9. The body-mountable device of claim 1, further comprising an adhesive layer, wherein the adhesive layer is configured to adhere the flexible substrate to the skin surface.

10. The body-mountable device of claim 1, further comprising a flexible sealant layer, wherein the flexible sealant layer encapsulates the display on the flexible substrate.

11. The body-mountable device of claim 10, wherein the flexible sealant layer comprises silicone.

12. The body-mountable device of claim 1, further comprising a moisture-wicking polymer layer, wherein the moisture-wicking polymer layer is configured to be in contact with the skin surface when the flexible substrate is mounted to the skin surface.

13. The body-mountable device of claim 1, further comprising a flexible battery disposed on the flexible substrate, wherein the flexible battery is configured to supply power to the controller.