Implanting Optical Cavity Structures

• US 20110082353A1
• Filed: 12/14/2010
• Published: 04/07/2011
• Est. Priority Date: 02/05/2007
• Status: Active Grant

• Current Assignee: Michael Bassler, Noble M. Johnson, Oliver Schmidt, Peter Kiesel, Richard H. Bruce
• Original Assignee: Michael Bassler, Noble M. Johnson, Oliver Schmidt, Peter Kiesel, Richard H. Bruce
• Inventors: Kiesel, Peter, Johnson, Noble M., Bruce, Richard H., Bassler, Michael, Schmidt, Oliver
• Granted Patent: US 8,040,526 B2
• Time in Patent Office: Days
• US Class Current: 600/310
• CPC Class Codes: A61B 5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy A61B5/0071 takes precedence
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1459 invasive, e.g. introduced into the body by a catheter A61B5/1464 takes precedence
• CPC Class Codes: G01N 21/03 Cuvette constructions
• CPC Class Codes: G01N 21/0303 Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment G01N21/031 - G01N21/15 take precedence
• CPC Class Codes: G01N 21/274 Calibration, base line adjustment, drift correction
• CPC Class Codes: G01N 21/31 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry G01N21/72 takes precedence

Abstract

An implantable product includes an optical cavity structure with first and second parts, each of which can operate as an optical cavity. The first part includes a container with at least one opening through which bodily fluid can transfer between the container'"'"'s interior and exterior when the product is implanted in a body. The second part includes a container that is closed and contains a reference fluid. The implantable product can also include one or both of a light source component and a photosensing component. Photosensed quantities from the first part'"'"'s output light can be adjusted based on photosensed quantities from the second part'"'"'s output light. Both parts can have their light interface surfaces aligned so that they both receive input light from a light source component and both provide output light to a photosensing component.

Claims

1. A method of using the implantable product of claim 1;

the method comprising;

implanting the implantable product in a body;

operating a light source component to provide input light to both of the first and second optical cavity parts, causing the first and second optical cavity parts to provide output light; and

operating a photosensing component to photosense output light from both of the first and second optical cavity parts.

2. The method of claim 1, further comprising:

using the photosensing component'"'"'s sensing results from the second optical cavity'"'"'s output light to adjust sensing results from the first optical cavity'"'"'s output light.