Rio Grande Medical Technologies, Inc.

Inlight Solutions, Inc.

Other

Inlight Solutions, Inc. Merly Riogrande Technologies, Inc.

Cic Photonics, Inc.

Robert G Messerschmidt

Mark Ries Robinson

Russell E Abbink

M Ries Robinson

An improved method and apparatus for diffuse reflectance spectroscopy. A specular control device is provided that can discriminate between diffusely reflected light that is reflected from selected depths or layers within the tissue. The specular control device permits a spectroscopic analyzer to receive the diffusely reflected light that is reflected from, for example, a first layer or depth within the tissue, while preventing the remaining diffusely reflected light from reaching the spectroscopic analyzer. Furthermore, the specular control device may prevent the specularly reflected light (e.g. surface reflected light) from reaching the spectroscopic analyzer.

Diffuse reflectance spectroscopy

An interferometer spectrometer that has reduced alignment sensitivity is described herein. Parallelism of an output ray pair formed by a single input ray is not affected by variations in relative alignment of the components. In comparison to other compensated interferometer designs, lateral separation errors in the output ray pair due to optical component misalignment are reduced. The reduced alignment sensitivity may be accomplished by utilizing simple planar components that are common to both light paths. The reduced alignment sensitivity and simplicity in design provides a more compact and more robust interferometer, with reduced manufacturing costs associated therewith. An elliptical field of view light source that utilizes an array of collimator lenses is also described. The light source provides a more compact design than a single circular collimator lens of the same area, and is suitable for single channel or multi-channel use.

Interferometer spectrometer with reduced alignment sensitivity

Diffuse reflectance monitoring apparatus

A method for non-invasively measuring the concentration of an analyte, particularly blood analyte in blood. The method utilizes spectrographic techniques in conjunction with an improved optical interface between a sensor probe and a skin surface or tissue surface of the body containing the blood to be analyzed. An index-matching medium is disclosed to improve the interface between the sensor probe and skin surface during spectrographic analysis. In a preferred embodiment, the blood analyte concentration in blood is quantified utilizing a partial squares analysis relative to a model incorporating analysis of plural known blood samples.

Method for non-invasive blood analyte measurement with improved optical interface

Method for non-invasive blood analyte measurement with improved optical

A spectrometer having a source of broad band infrared energy, a relay mirror that focuses the infrared energy at an intercepting mirror, a first object mirror that collimates the infrared energy from the intercepting mirror, a spatial light modulator that receives the collimated infrared energy and reflects it back to the first object mirror, the spatial light modulator including deformable mirror elements, and a controller that deforms the mirror elements according to a predetermined pattern. Deformable mirror elements obtain needed spectra while reducing the mechanical complexity of the spectrometer.

Multisource infrared spectrometer

A system for delivering infrared energy to a sample using frustrated internal reflectance in which a crystal for receiving the infrared energy is formed integrally with a removable mounting card. The mounting card is removable so that new samples can be sampled by quickly replacing the crystal with a new crystal having a new sample for analysis. Preferably, the crystal has the shape of a Fresnel lens. The infrared energy can be delivered to the crystal so that it experiences a single internal reflection and mounted in a card to form a surface that is integral with one side of the card to facilitate rapid cleaning and reuse of the card.

Infrared spectroscopic sampling accessory having a remotely mounted

An improved apparatus for diffuse reflectance spectroscopy having a specular control device. The specular control device has at least a first surface divided into an even-numbered plurality of reflecting sections and open or transmitting sections. The number of reflecting sections is equal to the number of open sections. Each reflecting section is situated between a pair of open sections and opposite to another reflecting section. Similarly, each open section is situated between a pair of reflecting sections and is opposite to another open section. In one preferred embodiment, the total surface area of the reflecting sections is equal to the total surface area of the open sections. In another embodiment, the total surface area of the reflecting sections is unequal to the total surface area of the open sections. In another preferred embodiment, opaque spacers are provided on the borders between adjacent sections to improve the detecting definition between source and reflected beams, and, to selectively provide for decreasing surface area of one or more selected sections.

Growing community of inventors

Albuquerque, NM, United States of America

Robert G Messerschmidt