System and method for creating a stable optical interface
First Claim
1. A system for creating a stable and reproducible optical interface in an optical sensor system for performing an optical scan on biological tissue comprises:
- an optical interferometer sensor utilizing a beam of light;
an interferometer connected to the optical sensor;
a computer connected to an optical receiver associated with the interferometer; and
a disposable optical apparatus attachable to the optical sensor, wherein the disposable optical apparatus comprises;
a focusing lens; and
an optical window connected to the focusing lens on a first side of the optical window, the optical window including a dome shaped surface on a second side of the optical window;
wherein the disposable optical apparatus is attachable to a surface area of biological tissue, wherein the dome shaped surface is configured to interface with the surface area of the biological tissue.
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Accused Products
Abstract
A system and a method for creating a stable and reproducible interface of an optical sensor system for measuring blood glucose levels in biological tissue include a dual wedge prism sensor attached to a disposable optic that comprises a focusing lens and an optical window. The disposable optic adheres to the skin to allow a patient to take multiple readings or scans at the same location. The disposable optic includes a Petzval surface placed flush against the skin to maintain the focal point of the optical beam on the surface of the skin. Additionally, the integrity of the sensor signal is maximized by varying the rotation rates of the dual wedge prisms over time in relation to the depth scan rate of the sensor. Optimally, a medium may be injected between the disposable and the skin to match the respective refractive indices and optimize the signal collection of the sensor.
746 Citations
23 Claims
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1. A system for creating a stable and reproducible optical interface in an optical sensor system for performing an optical scan on biological tissue comprises:
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an optical interferometer sensor utilizing a beam of light; an interferometer connected to the optical sensor; a computer connected to an optical receiver associated with the interferometer; and a disposable optical apparatus attachable to the optical sensor, wherein the disposable optical apparatus comprises; a focusing lens; and an optical window connected to the focusing lens on a first side of the optical window, the optical window including a dome shaped surface on a second side of the optical window; wherein the disposable optical apparatus is attachable to a surface area of biological tissue, wherein the dome shaped surface is configured to interface with the surface area of the biological tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of using an optical system with an optical interferometer sensor and a disposable optical apparatus for performing an optical scan on biological tissue comprises:
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attaching the disposable apparatus to a surface area of biological tissue, the disposable apparatus including
1) a focusing lens for receiving light from the optical sensor and
2) a focusing surface for receiving the light from the focusing lens, the focusing surface distinct from the focusing lens, the focusing lens and the focusing surface configured to focus the light onto the biological tissue;coupling the optical sensor to the disposable apparatus; and performing an optical scan using the optical sensor. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A disposable optical apparatus configured to attach to an optical sensor, the disposable optical apparatus comprising:
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a releasable connector for temporarily attaching the optical sensor to the disposable optical apparatus; a focusing lens configured to receive light from the optical sensor; an optical window connected to the focusing lens on a first side of the optical window; a dome shaped surface on a second side of the optical window, the dome shaped surface configured to receive light from the focusing lens; and an attachment layer for attaching the disposable optical apparatus is to a patient'"'"'s skin; wherein the focusing lens and the dome shaped surface are configured to focus the light onto the patient'"'"'s skin. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification