Optical sensor for bandage type monitoring device
First Claim
1. A body-mountable device comprising:
- a flexible substrate having a first side and a second side opposite the first side, wherein the flexible substrate is comprised by a single piece of material that is configured to be mounted to a skin surface and that is shaped to have an elongate extension having a distal end configured to extend beneath the skin surface to contact interstitial fluid;
an adhesive layer disposed on the first side of the flexible substrate, wherein the adhesive layer is configured to adhere the flexible substrate to the skin surface;
an optical fiber disposed on the elongate extension of the flexible substrate, wherein the optical fiber extends along a length of the elongate extension to the distal end of the elongate extension;
an analyte-sensitive substance, wherein the analyte-sensitive substance is disposed at the distal end of the elongate extension of the flexible substrate, and wherein the analyte-sensitive substance has an optical property affected by an analyte in the interstitial fluid;
a light detector;
one or more electronic components disposed on the single piece of material of the flexible substrate, wherein the one or more electronic components are configured to (i) operate the light detector to detect, via the optical fiber, a property of light emitted from the analyte-sensitive substance and (ii) indicate data related to the detected property of the emitted light, wherein at least one of the one or more electronic components is disposed on the first side of the flexible substrate; and
a conductive trace patterned on a surface of the flexible substrate, wherein at least one of the one or more electronic components is connected to the flexible substrate via the conductive trace.
4 Assignments
0 Petitions
Accused Products
Abstract
A flexible, body-mountable analyte sensing device includes a flexible substrate configured for mounting to skin of a living body. The sensing device additionally includes optical fiber attached to the flexible substrate and configured to penetrate the skin such that an analyte-sensitive substance disposed on the end of the optical fiber can detect an analyte in interstitial fluid. A color, fluorescence intensity, or other optical property of the analyte-sensitive substance is related to the concentration or other property of the analyte. Light reflected, scattered, fluorescently emitted, or otherwise emitted from the analyte-sensitive substance is transmitted via the optical fiber and detected by a light sensor on the flexible substrate. Such emitted light can be emitted in response to illumination of the analyte-sensitive substance via the optical fiber. The sensing device is configured to wirelessly indicate detected concentrations or other information about the analyte in the interstitial fluid.
50 Citations
19 Claims
-
1. A body-mountable device comprising:
-
a flexible substrate having a first side and a second side opposite the first side, wherein the flexible substrate is comprised by a single piece of material that is configured to be mounted to a skin surface and that is shaped to have an elongate extension having a distal end configured to extend beneath the skin surface to contact interstitial fluid; an adhesive layer disposed on the first side of the flexible substrate, wherein the adhesive layer is configured to adhere the flexible substrate to the skin surface; an optical fiber disposed on the elongate extension of the flexible substrate, wherein the optical fiber extends along a length of the elongate extension to the distal end of the elongate extension; an analyte-sensitive substance, wherein the analyte-sensitive substance is disposed at the distal end of the elongate extension of the flexible substrate, and wherein the analyte-sensitive substance has an optical property affected by an analyte in the interstitial fluid; a light detector; one or more electronic components disposed on the single piece of material of the flexible substrate, wherein the one or more electronic components are configured to (i) operate the light detector to detect, via the optical fiber, a property of light emitted from the analyte-sensitive substance and (ii) indicate data related to the detected property of the emitted light, wherein at least one of the one or more electronic components is disposed on the first side of the flexible substrate; and a conductive trace patterned on a surface of the flexible substrate, wherein at least one of the one or more electronic components is connected to the flexible substrate via the conductive trace. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method comprising:
-
operating a body-mountable device, wherein the body-mountable device comprises; a flexible substrate having a first side and a second side opposite the first side, wherein the flexible substrate is comprised by a single piece of material that is configured to be mounted to a skin surface and that is shaped to have an elongate extension having a distal end configured to extend beneath the skin surface to contact interstitial fluid; an adhesive layer disposed on the first side of the flexible substrate, wherein the adhesive layer is configured to adhere the flexible substrate to the skin surface; an optical fiber disposed on the elongate extension of the flexible substrate, wherein the optical fiber extends along a length of the elongate extension to the distal end of the elongate extension; an analyte-sensitive substance, wherein the analyte-sensitive substance is disposed at the distal end of the elongate extension of the flexible substrate, and wherein the analyte-sensitive substance has an optical property affected by an analyte in the interstitial fluid; a light detector; one or more electronic components disposed on the single piece of material of the flexible substrate, wherein at least one of the one or more electronic components is disposed on the first side of the flexible substrate; and a conductive trace patterned on a surface of the flexible substrate, wherein at least one of the one or more electronic components is connected to the flexible substrate via the conductive trace;
wherein the operating comprises;obtaining, by the one or more electronic components operating the light detector to detect light emitted from the analyte-sensitive substance via the optical fiber, data related to a property of the emitted light; and indicating, by the one or more electronic components, the data related to the property of the emitted light. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
Specification