Patents by Inventor Mohammed N. Islam

Mohammed N. Islam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190150748
    Abstract: A smart phone or tablet includes a first part having at least one laser diode configured to be pulsed, and a second part having at least one other laser diode, the laser diodes configured to generate near-infrared light, wherein at least some of the laser diodes comprise a distributed Bragg reflector, with some laser diode light directed to tissue including skin. An array of laser diodes generates near-infrared light and includes one or more distributed Bragg reflectors. An assembly in front of the array to forms light spots on the tissue. A first receiver includes detectors that receive light reflected from the tissue. An infrared camera generates data from light reflected from the tissue. The smart phone or tablet generates a two-dimensional or three-dimensional image or mapping using the infrared camera data, and includes a wireless receiver, a wireless transmitter, a display, a voice input module, and a speaker.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 23, 2019
    Inventor: Mohammed N. ISLAM
  • Patent number: 10271904
    Abstract: A system and method for selectively processing target tissue material in a patient include a laser subsystem for generating an output laser beam and a catheter assembly including an optical fiber for guiding the output laser beam. The beam has a predetermined selected wavelength between 900 nm and 2600 nm. The catheter assembly is sized to extend through an opening in a first part of the patient to a tissue material processing site within the patient. A beam delivery and focusing subsystem includes a focal distance, which may be adjustable, that positions the beam into at least one focused spot on the target tissue material disposed within a second part of the patient for a duration sufficient to allow laser energy to be absorbed by the target tissue material and converted to heat to produce a desired physical change in the target tissue material without causing undesirable changes to adjacent non-target material.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: April 30, 2019
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10213113
    Abstract: A wearable device includes a measurement device adapted to be placed on a wrist or ear having a light source with LEDs to measure physiological parameters. The measurement device generates an optical beam having a near infrared wavelength between 700-2500 nanometers by modulating the LEDs, and lenses to deliver the beam to tissue, which reflects the beam to a receiver having spectral filters in front of spatially separated detectors coupled to analog to digital converters that generate at least two receiver outputs. Signal-to-noise ratio of the beam reflected from the tissue is improved by comparing the receiver outputs, and by increasing light intensity from the LEDs. The receiver is synchronized to the modulation of the LEDs and uses a lock-in technique that detects the modulation frequency. The measurement device generates an output signal representing a non-invasive measurement on blood within the tissue.
    Type: Grant
    Filed: June 24, 2018
    Date of Patent: February 26, 2019
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Publication number: 20190056266
    Abstract: A spectroscopy system includes a light source having an input light source, including semiconductor diodes generating an input beam with a wavelength shorter than 2.5 microns. Cladding-pumped fiber amplifiers receive the input beam and form an amplified optical beam having a spectral width. A nonlinear element broadens the spectral width of the amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam that is pulsed. A filter is coupled to at least one of a lens and a mirror that receives the output beam and delivers the filtered output beam to a sample. A detection system includes detectors configured to receive the output beam reflected or transmitted from the sample. The detection system is configured to use a lock-in technique with the pulsed output beam and the spectroscopy system is adapted to detect chemicals in the sample.
    Type: Application
    Filed: July 6, 2018
    Publication date: February 21, 2019
    Inventor: Mohammed N. ISLAM
  • Patent number: 10201283
    Abstract: A smart phone or tablet includes pulsed laser diodes generating light with near-infrared wavelengths between 700-2500 nanometers. First lenses direct light from the laser diodes to tissue. An array of pulsed laser diodes generates light with near-infrared wavelengths between 700-2500 nanometers. Second lenses form light from the array into spots directed on the tissue. An infrared camera synchronized to the laser diodes and the array generates data based on light reflected from the tissue. The smart phone or tablet generates a two-dimensional or three-dimensional image using the data from the infrared camera. The smart phone or tablet includes a wireless receiver, a wireless transmitter, a display, a voice input module, and a speaker.
    Type: Grant
    Filed: July 8, 2018
    Date of Patent: February 12, 2019
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10188299
    Abstract: A wearable device for measuring physiological parameters includes a light source having a plurality of semiconductor light emitting diodes (LEDs) each configured to generate an output optical beam, wherein at least a portion of the one or more optical beam wavelengths is a near-infrared wavelength. The light source is configured to increase signal-to-noise ratio by increasing light intensity for at least one of the LEDs and by increasing a pulse rate of at least one of the LEDs. A lens is configured to receive the output optical beam and to deliver a lens output beam to tissue. A detection system generates an output signal in response to the lens output beam reflected from the tissue, wherein the detection system is configured to be synchronized to the light source, and is located a different distance from a first one of the LEDs than a second one of the LEDs.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: January 29, 2019
    Assignee: Omni Medsci, Inc.
    Inventor: Mohammed N. Islam
  • Patent number: 10172523
    Abstract: A measurement system includes a light source having semiconductor sources, a multiplexer, and one or more fused silica fibers configured to form an output optical beam having one or more optical wavelengths modulated at a modulation frequency. A light beam set-up includes a monochromator forming a filtered optical beam. A measurement apparatus delivers the filtered optical beam to a sample. A receiver receives a spectroscopy output beam generated from the sample by the filtered optical beam. The receiver is configured to use a lock-in technique that detects the modulation frequency, and to generate first and second signals responsive to light received while the light source is off and on, respectively. The measurement system improves a signal-to-noise ratio of the spectroscopy output beam by differencing the first and second signals. The receiver processes the spectroscopy output beam using chemometrics or multivariate analysis to permit identification of materials within the sample.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: January 8, 2019
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10136819
    Abstract: An imaging device includes laser diodes (LDs) generating near-infrared wavelength light, lenses configured to deliver the light to tissue, a first receiver having one or more detectors, and a first part with at least one of the LDs capable of being pulsed. The first receiver receives light reflected from the tissue and is synchronized to the pulsed light and configured to perform a time-of-flight measurement. An infrared camera receives light reflected by the tissue from a second part of the imaging device. The camera captures light while the second part is off, and while the second part is on to generate corresponding signals, and differences the signals to generate an image. An array of LDs generates a grid of spots on the tissue, which is reflected to the camera. A coupled phone, tablet, or computer receives and processes the time-of-flight measurement, the image, and the reflected grid of spots.
    Type: Grant
    Filed: February 4, 2018
    Date of Patent: November 27, 2018
    Assignee: Omni Medsci, Inc.
    Inventor: Mohammed N. Islam
  • Patent number: 10126283
    Abstract: A smart phone or tablet includes laser diodes configured to be pulsed and generate near-infrared light between 700-2500 nanometers. Lenses direct the light to a sample. A detection system includes a photodiode array with pixels coupled to CMOS transistors, and is configured to receive light reflected from the sample, to be synchronized to the light from the laser diodes, and to perform a time-of-flight measurement of a time difference between light from the laser diodes and light reflected from the sample. The detection system is configured to convert light received while the laser diodes are off into a first signal, and light received while at least one laser diodes is on, which includes light reflected from the sample, into a second signal. The smart phone or tablet is configured to difference the first signal and the second signal and to generate a two-dimensional or three-dimensional image using the time-of-flight measurement.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: November 13, 2018
    Assignee: Omni MedSci, Inc.
    Inventor: Mohammed N. Islam
  • Publication number: 20180317776
    Abstract: A smart phone or tablet includes pulsed laser diodes generating light with near-infrared wavelengths between 700-2500 nanometers. First lenses direct light from the laser diodes to tissue. An array of pulsed laser diodes generates light with near-infrared wavelengths between 700-2500 nanometers. Second lenses form light from the array into spots directed on the tissue. An infrared camera synchronized to the laser diodes and the array generates data based on light reflected from the tissue. The smart phone or tablet generates a two-dimensional or three-dimensional image using the data from the infrared camera. The smart phone or tablet includes a wireless receiver, a wireless transmitter, a display, a voice input module, and a speaker.
    Type: Application
    Filed: July 8, 2018
    Publication date: November 8, 2018
    Inventor: Mohammed N. ISLAM
  • Patent number: 10105059
    Abstract: A wearable device for measuring physiological parameters includes a light source having a plurality of semiconductor light emitting diodes (LEDs) each configured to generate an output optical beam, wherein at least a portion of the one or more optical beam wavelengths is a near-infrared wavelength. The light source is configured to increase signal-to-noise ratio by increasing light intensity for at least one of the LEDs and by increasing a pulse rate of at least one of the LEDs. A lens is configured to receive the output optical beam and to deliver a lens output beam to tissue. A detection system generates an output signal in response to the lens output beam reflected from the tissue, wherein the detection system is configured to be synchronized to the light source, and is located a different distance from a first one of the LEDs than a second one of the LEDs.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: October 23, 2018
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Publication number: 20180296097
    Abstract: A measurement system includes a light source having semiconductor sources, a multiplexer, and one or more fused silica fibers configured to form an output optical beam having one or more optical wavelengths modulated at a modulation frequency. A light beam set-up includes a monochromator forming a filtered optical beam. A measurement apparatus delivers the filtered optical beam to a sample. A receiver receives a spectroscopy output beam generated from the sample by the filtered optical beam. The receiver is configured to use a lock-in technique that detects the modulation frequency, and to generate first and second signals responsive to light received while the light source is off and on, respectively. The measurement system improves a signal-to-noise ratio of the spectroscopy output beam by differencing the first and second signals. The receiver processes the spectroscopy output beam using chemometrics or multivariate analysis to permit identification of materials within the sample.
    Type: Application
    Filed: June 22, 2018
    Publication date: October 18, 2018
    Inventor: Mohammed N. ISLAM
  • Publication number: 20180296096
    Abstract: A system includes a measurement apparatus having sensors measuring physiologic parameters such as blood pressure, heart rate, and/or blood oxygen level. A sensor is inserted into a user orifice and coupled to tissue comprising blood. Another sensor provides positioning information, and yet another sensor provides proximity information of the apparatus to the tissue. A communication device includes microphones of a headset adapted to be worn by the user to receive voice input commands, and also includes audio output devices. A voice recognition module processes voice commands to identify a specific command and is customized to user preferences. The apparatus communicates with a control system receiving and processing the physiological parameters including a touch-screen, a mechanical system having actuators, and a wireless transmitter to transmit data of the physiological parameters over a wireless link to a host. The control system manipulates part of the control system responsive to the voice commands.
    Type: Application
    Filed: June 22, 2018
    Publication date: October 18, 2018
    Inventor: Mohammed N. ISLAM
  • Publication number: 20180296098
    Abstract: A wearable device includes a measurement device adapted to be placed on a wrist or ear having a light source with LEDs to measure physiological parameters. The measurement device generates an optical beam having a near infrared wavelength between 700-2500 nanometers by modulating the LEDs, and lenses to deliver the beam to tissue, which reflects the beam to a receiver having spectral filters in front of spatially separated detectors coupled to analog to digital converters that generate at least two receiver outputs. Signal-to-noise ratio of the beam reflected from the tissue is improved by comparing the receiver outputs, and by increasing light intensity from the LEDs. The receiver is synchronized to the modulation of the LEDs and uses a lock-in technique that detects the modulation frequency. The measurement device generates an output signal representing a non-invasive measurement on blood within the tissue.
    Type: Application
    Filed: June 24, 2018
    Publication date: October 18, 2018
    Inventor: Mohammed N. ISLAM
  • Patent number: 10098546
    Abstract: A wearable device includes a measurement device having light emitting diodes (LEDs) measuring a physiological parameter. The measurement device modulates the LEDs to generate an optical beam having a near-infrared wavelength between 700-2500 nanometers. Lenses receive and deliver the optical beam to tissue, which reflects the optical beam to a receiver having spatially separated detectors coupled to analog-to-digital converters configured to generate receiver outputs. The receiver captures light while the LEDs are off, and reflected light from the tissue while the LEDs are on, to generate first and second signals, respectively. Signal-to-noise ratio is improved by differencing the first and second signals and by differencing the receiver outputs. The measurement device further improves signal-to-noise ratio of the reflected optical beam by increasing light intensity of the LEDs relative to an initial light intensity.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: October 16, 2018
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Publication number: 20180292377
    Abstract: A smart phone or tablet includes laser diodes configured to be pulsed and generate near-infrared light between 700-2500 nanometers. Lenses direct the light to a sample. A detection system includes a photodiode array with pixels coupled to CMOS transistors, and is configured to receive light reflected from the sample, to be synchronized to the light from the laser diodes, and to perform a time-of-flight measurement of a time difference between light from the laser diodes and light reflected from the sample. The detection system is configured to convert light received while the laser diodes are off into a first signal, and light received while at least one laser diodes is on, which includes light reflected from the sample, into a second signal. The smart phone or tablet is configured to difference the first signal and the second signal and to generate a two-dimensional or three-dimensional image using the time-of-flight measurement.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Inventor: Mohammed N. ISLAM
  • Publication number: 20180289264
    Abstract: A diagnostic system includes a light source having semiconductor sources, optical amplifiers, and fibers configured to deliver a first optical beam to a nonlinear element configured to broaden a spectrum of the first optical beam to at least 10 nanometers through a nonlinear effect in the nonlinear element, wherein a broadened-spectrum output beam comprises a near-infrared wavelength between 600-1000 nanometers. An interface device, having a cap with fiber leads configured to couple to the light source and to a receiver having one or more detectors, delivers the output optical beam to a tissue sample. The receiver is configured to receive a diffuse spectroscopy output beam resulting from light diffusion of the output optical beam into a top two (2) millimeters of the sample and to process the diffuse spectroscopy output beam to generate an output signal that monitors absorption or scattering features of the tissue sample.
    Type: Application
    Filed: June 9, 2018
    Publication date: October 11, 2018
    Inventor: Mohammed N. ISLAM
  • Patent number: 10041832
    Abstract: A super continuum light source includes an input light source having semiconductor diodes generating an input beam having a wavelength shorter than 2.5 microns. Optical amplifiers receive the input beam and form an amplified optical beam having a spectral width. The optical amplifiers may include a cladding-pumped fiber amplifier doped with rare-earth materials. A nonlinear element may include mid-infrared fibers to receive the amplified optical beam and to broaden the spectral width of the received amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam, wherein the output beam is pulsed. At least a portion of the output beam is in a mid-infrared wavelength range between 2 microns and 5 microns and at least a portion of the one or more mid-infrared fibers comprises a ZBLAN fluoride fiber coupled to a chalcogenide fiber.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: August 7, 2018
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam
  • Patent number: 10004402
    Abstract: Measurement apparatus includes sensors configured to generate signals associated with physiological parameters and adapted to be coupled to tissue comprising blood and to communicate signals associated with the parameters to feedback control circuitry capable of generating physiological information from the signals. A software application is configured to operate on a control system capable of receiving the physiological information and configured to receive voice input signals and manually entered input signals. The control system includes a touch-screen, a proximity sensor, circuitry for obtaining movement information from a positioning sensor, a mechanical system having actuators, and a wireless transmitter to transmit the physiological information over a wireless link to a host.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: June 26, 2018
    Assignee: Omni Medsci, Inc.
    Inventor: Mohammed N. Islam
  • Patent number: 9993159
    Abstract: A system and method for using near-infrared or short-wave infrared (SWIR) light sources for early detection and monitoring of breast cancer, as well as other kinds of cancers may detect decreases in lipid content and increases in collagen content, possibly with a shift in the collagen peak wavelengths and changes in spectral features associated with hemoglobin and water content as well. Wavelength ranges between 1000-1400 nm and 1600-1800 nm may permit relatively high penetration depths because they fall within local minima of water absorption, scattering loss decreases with increasing wavelength, and they have characteristic signatures corresponding to overtone and combination bands from chemical bonds of interest, such as hydrocarbons. Broadband light sources and detectors permit spectroscopy in transmission, reflection, and/or diffuse optical tomography. High signal-to-noise ratio may be achieved using a fiber-based super-continuum light source.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: June 12, 2018
    Assignee: OMNI MEDSCI, INC.
    Inventor: Mohammed N. Islam