Other

The City University of New York

Eastman-Kodak Company

Avigdor M Ronn

Philip A Bernstein

James P Coffey

Jaime Nieman

Alan P Van Kerkhove

Harvey C Branch

Leonard F Hurysz

A method of measuring a metric of a measurement area of interest on a subject comprises contacting a part of the subject on a rest of a measurement apparatus that comprises an arm, a base attached to or formed on the arm, and a displacement sensor attached to the arm; adjusting the measurement apparatus to optimize the spatial relationship between the displacement sensor and the measurement area of interest on the subject; and measuring the metric.

Body metric differential measurement device

A concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelength is determined by the steps of drawing a tissue sample from the patient, powderizing the tissue sample, extracting the photosensitizing drug from an amount of the powderized tissue sample with a solvent to form an extract, irradiating the extract with an interrogation light at an interrogation wavelength range of an absorption band bluer than the treatment light wavelength, measuring a magnitude of an emission signal at the treatment light wavelength, the emission signal caused by the irradiation of the extract, and comparing the measured magnitude to a magnitude/concentration calibration curve to determine the concentration of the photosensitizing drug.

Method for assaying photosensitizing drug in tissue

A filtering connection to optical light cable is a body having a hollow bore extending through the body, with a single or multicomponented optical element positioned coaxially in the hollow bore. An interior threaded portion with a standard thread is formed at one end of the hollow bore while an exterior threaded portion with a mating standard thread is formed about the other opposite end of the hollow bore.

Filtering connection to optical light cable

A concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelength, is determined by the steps of drawing a blood sample from the patient, separating a blood plasma portion from the blood sample, irradiating the blood plasma portion with an interrogation light at an interrogation wavelength range at an absorption band bluer than the treatment light wavelength, measuring a magnitude of an emission signal at the treatment light wavelength, the emission signal caused by the irradiation of the blood plasma portion, and comparing the measured magnitude to a magnitude/concentration calibration curve to determine the concentration of the photosensitizing drug.

Method for assaying photosensitizing drug in plasma

A concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelength, is determined by the steps of drawing a blood sample from the patient, diluting the blood sample to form a diluted sample, irridating the diluted sample with an interrogation light at an interrogation wavelength range at an absorption band bluer than the treatment light wavelength, measuring a magnitude of an emission signal at the treatment light wavelength, the emission signal caused by the irradiation of the diluted sample, and comparing the measured magnitude to a magnitude/concentration calibration curve to determine the concentration of the photosensitizing drug.

Method for assaying photosensitizing drug in whole blood

A concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelenght, is determined by the steps of drawing a blood sample from the patient, spreading the blood sample between two optically transmissive plates to form a spread sample, irradiating the spread sample with an interrogation light at an interrogation wavelength range of an absorption band bluer than the treatment light wavelength, measuring a magnitude of an emission signal at the treatment light wavelength, the emission signal caused by the irradiation of the spread sample, and comparing the measured magnitude to a magnitude/concentration calibration curve to determine the concentration of the photosensitizing drug.

A fluorescence spectrometer for determining a concentration of a photosensitizing drug in a patient, for PhotoDynamic Therapy treatment of the patient by a treatment light at a treatment light wavelength, the fluorescence spectrometer comprising a light source that directs an interrogation beam at a blood or blood plasma sample at an interrogation wavelength range bluer than the treatment light wavelength, measuring a magnitude of an emission signal at the treatment light wavelength, the emission signal caused by the irradiation of the sample, and comparing the measured magnitude to a magnitude/concentration calibration curve to determine the concentration of the photosensitizing drug. A CPU controls the components and makes the comparison and determination.

Plasma assay spectrometer

A laser initiated process generates a shock wave of sufficient strength to produce a sintered product. The sintered product is prepared from at least a fuel and an oxidizer that will sustain an explosion in a reaction vessel. The explosion is initiated by introducing a laser beam into the reaction vessel and a shock wave begins to propagate at the point where the explosion is initiated. A sintered product is prepared when the shock wave is sufficiently strong to densify the product. Although the reaction will proceed using a two-component fuel-oxidizer mixture, the reaction is especially useful for producing sintered doped or undoped silicon dioxide (SiO.sub.2) from a reaction mixture containing at least silicon tetrachloride, hydrogen and oxygen. The sintered SiO.sub.2 can be deposited on a deposition surface situated in the reaction vessel to produce a preform that can be processed to produce an optical fiber.

Laser initiated chain reactions for producing a sintered product

A method of forming a predetermined pattern on a substrate or support. In one embodiment, the method comprises the steps of:

Method for forming patterns on a substrate or support

Directed to the use of non-resonant laser energy to initiate reactions in reaction mixtures containing ingredients of the kind and in the amounts capable of forming chain reactions.

Production of chain reactions by laser chemistry

The production of polymeric bodies having included, isolated areas of fine metal or metal oxide particles dispersed therein by mixing a metal compound with a polymer, converting the resulting mixture to a desired shape and irradiating selected areas of the shape with laser light to decompose the metal compound in the irradiated areas.

Preparation of metal containing polymeric material via laser chemistry

Irradiation of a molecular specie by itself or in the presence of a secondary material at a pressure above a threshold value for the particular system by a laser of predetermined minimum power and having a frequency displaced from an absorption line of the specie causes severance of the weakest bond and a yield of products containing at least one dissociative fragment from said specie. A Rogowski type TEA CO.sub.2 --N.sub.2 --He laser has been used successfully on a wide variety of molecular species. Solid, liquid and gaseous end products have been obtained depending upon the starting materials. When solids have been produced they are in the form of microfine particles or microfine aggregates. A neodymium glass laser has also been used successfully.

Growing community of inventors

Great Neck, NY, United States of America

Avigdor M Ronn