Ralf T Faber, Age 6266 Solomon Pierce Rd, Lexington, MA 02420

2005026, Dec 1, 2005

Jan 31, 2005

11/048005

Ralf Faber - Lexington MA, US
Erik Schwendeman - Charlton MA, US
Guangming Wang - Bedford MA, US

A61B005/00

600322000, 600310000

Non-invasive, optical apparatus and methods for the direct measurement of hemoglobin derivatives and other analyte concentration levels in blood using diffuse reflection and transmission spectroscopy in the wavelength region 400-1350 nm which includes the transparent tissue window from approximately 610 to 1311 nanometers and, using diffuse reflection spectroscopy, the mid-infrared region from 4.3-12 microns in wavelength. Large area light collection techniques are utilized to provide a much larger pulsate signal than can be obtain with current sensor technology. Sensors used in separate or simultaneous precision measurements of both diffuse reflection and transmission, either separately or simultaneously, from pulsate, blood-perfused tissue for the subsequent determination of the blood analytes concentrations such as arterial blood oxygen saturation (SaO), carboxyhemoglobin (COHb), oxyhemoglobin (OHb), deoxyhemoglobin (dOHb), methemoglobin (metHb), water (H2O), hematocrit (HCT), glucose, cholesterol and proteins such as albumin and other analytes components.

2012024, Sep 27, 2012

Mar 22, 2012

13/427323

Ralf T. Faber - Lexington MA, US
Ronald A. Crocker - Hanover MA, US
Keqi Zhang - Wayland MA, US
Joseph Patrinostro - Centerville MA, US
James S. Snyder - Suffield MA, US

VACUUM PROCESS TECHNOLOGY LLC - Plymouth MA

C23C 16/448

4272555, 118726

A vapor deposition source for vaporizing a material has a body forming an interior chamber, at least one crucible in the interior chamber, and a divider that divides the interior chamber into a transport channel and a distribution channel. To deposit vapor on an underlying substrate, the deposition source also has a plurality of exit orifices formed in the body adjacent to the distribution channel. The divider has a set of divider apertures between the transport channel and the distribution channel. This divider aperture is positioned generally symmetrically within the interior chamber.