4 results about "Tissue phantom" patented technology

An optical tissue phantom (OTP) is provided, comprising: a matrix comprising a hot melt adhesive; and a light scattering agent and a light absorbing agent dispersed in the matrix. A method of forming the OTP is also provided.

Disclosed is a tissue phantom system, comprising: a tissue phantom material having known optical properties and an input surface for receiving incident source light from the optical measurement instrument; and one or more light guides having a first and second end, wherein the first end of the or each light guide is embedded within the phantom material at a respective location beneath the input surface to transmit light to and / or from the respective location for simulating an optical property variation within the tissue phantom material. Also disclosed is a method of calibrating or testing an optical measurement instrument configured to measure a target's response to illumination, by: illuminating the input surface of the tissue phantom material with source light, simulating an optical property variation within the tissue phantom material according to a known response pattern by transmitting light to and / or from the respective location beneath the input surface via the one or more light guides; and detecting scattered light emitted from the tissue phantom material.

A method for calibrating detectors of a self-contained, tissue oximetry device includes emitting light from a light source into a tissue phantom, detecting in a plurality of detectors the light emitted from the light source, subsequent to reflection from the tissue phantom, and generating a set of detector responses by the plurality of detectors based on detecting the light emitted from the light source. The method further includes determining a set of differences between the set of detector responses and a reflectance curve for the tissue phantom, and generating a set of calibration functions based on the set of differences. Each calibration function in the set of calibration functions is associated with a unique, light source-detector pair. The method further includes storing the set of calibration function in a memory of the self-contained, tissue oximetry device.