Patents Assigned to Dymedix Corporation
  • Patent number: 10143418
    Abstract: The system of the present invention is intended to provide a simple, out-of-clinic sleep disorders testing tool. It can be used for pretest screening and diagnosis, and post therapy follow-up of patients. The hardware component comprises a disposable sensor pack containing a PVDF airflow sensor and a PVDF pulse wave sensor, each of which is permanently connected to a signal conditioning and communications module configured to communicate with a patient's smartphone via a Bluetooth circuit. An APP stored in the smartphone allows a patient to initiate a diagnostic recording, collect and store digitized data onto the phone and, subsequently, upload data to a secure server for analysis on a host computer following completion of the test.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: December 4, 2018
    Assignee: Dymedix Corporation
    Inventors: James P. Moore, Todd M. Eiken
  • Patent number: 9724020
    Abstract: Circuits for rendering piezo-based respiratory belts compatible with polysomnograph (PSG) machines designed for use with respiratory induction belts (RIPs) comprise an instrumentation amplifier adapted to be connected to a piezoelectric transducer and providing an AC output signal to a low-pass filter. In a first embodiment, the low-pass filter output is applied to an input of a microcontroller's A to D converter and the resulting digitized samples are used to vary the resistance of a digital potentiometer whose wiper terminal is coupled in series with an inductor so as to emulate the presence of a RIP belt to the PSG machine. In a second embodiment, the low-pass filter output is used to drive the primary of a transformer so as to vary the permeability of the transformer's ferrite core in a way that emulates the performance of a RIP belt to the PSG.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: August 8, 2017
    Assignee: Dymedix Corporation
    Inventors: Bruce R. Bowman, Allen J. Pickard, Peter Stasz
  • Patent number: 9572507
    Abstract: A multi sensor module especially designed for use in sleep-study applications includes a PVDF film piezoelectric transducer enclosed between an upper layer of a single-sided adhesive tape strip and a lower layer of a double-sided adhesive tape strip. Also adhesively affixed to the upper single-sided adhesive tape strip, but not overlaid by the lower double-sided adhesive tape strip are first and second conductive electrodes. The combination sensor module is adapted to be adhesively affixed to the chest area of a person and further included in an extension of the PVDF strip that is adapted to overlay the suprasternal notch of a person for producing signals responsive to respiratory activity of the person.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: February 21, 2017
    Assignee: DYMEDIX CORPORATION
    Inventors: James P. Moore, Todd M. Eiken
  • Publication number: 20160066810
    Abstract: A multi sensor module especially designed for use in sleep-study applications includes a PVDF film piezoelectric transducer enclosed between an upper layer of a single-sided adhesive tape strip and a lower layer of a double-sided adhesive tape strip. Also adhesively affixed to the upper single-sided adhesive tape strip, but not overlaid by the lower double-sided adhesive tape strip are first and second conductive electrodes. The combination sensor module is adapted to be adhesively affixed to the chest area of a person and further included in an extension of the PVDF strip that is adapted to overlay the suprasternal notch of a person for producing signals responsive to respiratory activity of the person.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 10, 2016
    Applicant: DYMEDIX CORPORATION
    Inventors: James P. Moore, Todd M. Eiken
  • Publication number: 20160022212
    Abstract: A respiratory effort sensing belt that incorporates a PVDF transducer is constructed such that the transducer is contained within an elastic, moisture impervious plastic envelope and affixed to the envelope are a pair of cam buckles adapted to receive opposed ends of a body-encircling, single-use band. Because of the construction of the sensor module, it may be sterilized for reuse.
    Type: Application
    Filed: July 24, 2014
    Publication date: January 28, 2016
    Applicant: DYMEDIX CORPORATION
    Inventors: James P. Moore, Alan B. Jones, Todd M. Eiken
  • Publication number: 20140330156
    Abstract: Circuits for rendering piezo-based respiratory belts compatible with polysomnograph (PSG) machines designed for use with respiratory induction belts (RIPs) comprise an instrumentation amplifier adapted to be connected to a piezoelectric transducer and providing an AC output signal to a low-pass filter. In a first embodiment, the low-pass filter output is applied to an input of a microcontroller's A to D converter and the resulting digitized samples are used to vary the resistance of a digital potentiometer whose wiper terminal is coupled in series with an inductor so as to emulate the presence of a RIP belt to the PSG machine. In a second embodiment, the low-pass filter output is used to drive the primary of a transformer so as to vary the permeability of the transformer's ferrite core in a way that emulates the performance of a RIP belt to the PSG.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicant: DYMEDIX CORPORATION
    Inventors: Bruce R. Bowman, Allen J. Pickard, Peter Stasz
  • Patent number: 8834347
    Abstract: This document discusses, among other things, a system and method for anti-habituating sleep therapy using a closed loop neuromodulator. A first sleep disorder event can be detected using first activity information, and a first series of stimuli can be provided, in response to the first sleep disorder event, using a set of stimulus parameters. A habituation event can be detected and anti-habituation stimulation parameter can be adjusted to avoid patient habituation to the stimuli.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: September 16, 2014
    Assignee: Dymedix Corporation
    Inventors: Reinhold Henke, Evan S. Johnston, Alan B. Jones, Peter Stasz, Thomas H. Zymowski
  • Patent number: 8834346
    Abstract: This document discusses, among other things, a system and method for generating a sleep therapy stimulus waveform for a patient. Stimulus sequence information can be selected from a sequence memory array, and stimulus sequence information can be received from the sequence memory array at a stimulus generator selector. A generator select signal can be provided to a stimulus generator of a closed loop neuromodulator using the stimulus sequence information and a stimulus duration signal, wherein the generator select signal can include stimulus type information related to stimulus pulses generated using the closed loop neuromodulator.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: September 16, 2014
    Assignee: Dymedix Corporation
    Inventors: Reinhold Henke, Evan S. Johnston, Peter Stasz
  • Patent number: 8579794
    Abstract: A tactile and audible sensation can be provided to a patient using a coiled or scrolled film in response to a received control signal. The tactile and audible sensation can be configured to stimulate the patient's central nervous system to sufficiently interrupt and undesirable sleep behavior of the patient, but avoid significantly changing a sleep state of the patient.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: November 12, 2013
    Assignee: Dymedix Corporation
    Inventor: Reinhold Henke
  • Patent number: 8147407
    Abstract: System for storing pre-packaged sleep related sensors and facilitating effective, efficient, or error-free usage of the sleep related sensors for sleep diagnostic testing including a thoracic respiratory effort belt, an abdominal effort belt, an oxygen saturation sensor, and a nasal and oral airflow sensor, a receptacle for storing sleep-related sensors, and instruction for using the sleep-related sensors.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: April 3, 2012
    Assignee: Dymedix Corporation
    Inventors: James Patrick Moore, Evan Stuart Johnston, Terry Joseph Lerach
  • Patent number: 8147420
    Abstract: An apparatus and method can be configured to detect respiratory air temperature information and respiratory air pressure information from a patient using a first piezoelectric film and a second piezoelectric film, wherein at least a portion of the second piezoelectric film overlaps at least a portion of the first piezoelectric film. In an example, the first and second piezoelectric films can be sized and shaped to be disposed on an upper lip of a subject. In certain examples, the first piezoelectric film can include a non-overlap portion exposed to nasal respiration, and the second piezoelectric film can include a non-overlap portion exposed to oral respiration.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: April 3, 2012
    Assignee: Dymedix Corporation
    Inventors: Reinhold Henke, Evan Stuart Johnston, Alan Bradley Jones
  • Publication number: 20100076251
    Abstract: This document discusses, among other things, an apparatus and method for detecting respiration information of a patient and for providing a stimulation to the patient. A sleep sensor transducer includes a pyro/piezoelectric film. A first and second electrode can attach to the film to transmit the detected respiration information to a closed loop neuromodulator and to receive stimulation energy from the closed loop neuromodulator to provide the stimulation.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Applicant: Dymedix Corporation
    Inventors: Peter Stasz, Reinhold Henke
  • Publication number: 20100076252
    Abstract: This document discusses, among other things, an apparatus and method for receiving respiration information of a patient and for providing a stimulation to the patient using a hybrid circuit. The hybrid circuit includes a control input for receiving a control signal having a first and second state. A sense switch of the hybrid circuit can provide respiration information from a pyro/piezoelectric film sleep sensor and stimulator to a closed loop neuromodulator in response to the first state. A stimulation switch of the hybrid circuit can provide stimulation energy from the closed loop neuromodulator to the pyro/piezoelectric film sensor and stimulator in response to the second state. The hybrid circuit can couple to the pyro/piezoelectric film sensor and stimulator using a single wire pair.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Peter Stasz
  • Publication number: 20100069771
    Abstract: This document discusses, among other things, a system and method for detecting biomedical data of a patient. Biomedical data of the patient can be detected using one or more wireless sensors. The wireless sensor can include pyro electric and piezo electric properties and can be coupled to a wireless transceiver to receive the biomedical data. Examples include wirelessly communicating the biomedical data to a base station coupled to a polysomnograph (PSG) machine or a sleep therapy device.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Peter Stasz
  • Publication number: 20100069769
    Abstract: This document discusses, among other things, an apparatus and method for receiving biomedical data of a patient. Biomedical data of the patient can be wirelessly received using a wireless sensor base station including a transceiver to receive the biomedical data from a wireless sleep sensor. A demultiplexer of the wireless sensor base station can separate respiration information from the biomedical data. Examples include providing the biomedical data to a polysomnograph (PSG) machine or a sleep therapy device using an output of the wireless sensor base station.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Peter Stasz
  • Publication number: 20100069772
    Abstract: This document discusses, among other things, an apparatus and method for transmitting biomedical data of a patient. Biomedical data of the patient can be transmitted using one or more wireless transceivers. The wireless transceiver can include a pyro/piezoelectric sensor for detecting the biomedical data of the patient. Examples include wirelessly communicating the biomedical data to a base station coupled to a polysomnograph (PSG) machine or a sleep therapy device.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Peter Stasz
  • Publication number: 20100069773
    Abstract: This document discusses, among other things, a system and method for detecting biomedical data for diagnosing sleep disorders of a patient. Biomedical data of the patient can be detected using one or more wireless sensors. The biomedical data can be processed to separate various information including respiration temperature and pressure information. The various information can be wirelessly communicated to a base station coupled to a polysomnograph (PSG) machine configured to display the information for diagnosing sleep disorders.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Peter Stasz
  • Publication number: 20100063348
    Abstract: This document discusses, among other things, a system and method for generating a sleep therapy stimulus waveform for a patient. Stimulus sequence information can be selected from a sequence memory array, and stimulus sequence information can be received from the sequence memory array at a stimulus generator selector. A generator select signal can be provided to a stimulus generator of a closed loop neuromodulator using the stimulus sequence information and a stimulus duration signal, wherein the generator select signal can include stimulus type information related to stimulus pulses generated using the closed loop neuromodulator.
    Type: Application
    Filed: August 21, 2009
    Publication date: March 11, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Evan S. Johnston, Peter Stasz
  • Publication number: 20100063350
    Abstract: This document discusses, among other things, a system and method for anti-habituating sleep therapy using a closed loop neuromodulator. A first sleep disorder event can be detected using first activity information, and a first series of stimuli can be provided, in response to the first sleep disorder event, using a set of stimulus parameters. A habituation event can be detected and anti-habituation stimulation parameter can be adjusted to avoid patient habituation to the stimuli.
    Type: Application
    Filed: August 21, 2009
    Publication date: March 11, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Evan S. Johnston, Alan B. Jones, Peter Stasz, Thomas H. Zymowski
  • Publication number: 20100056853
    Abstract: This document discusses, among other things, a system and method for providing a stimulus signal of a closed loop neuromodulator configured to optimize sleep therapy for a patient. A stimulus select signal can be received at a plurality of stimulus type generators from a stimulus sequencer of the closed loop neuromodulator, and a stimulus signal can be provided using one of the plurality of stimulus type generators in response to the stimulus select signal. An amplified stimulus signal can be provided to a stimulus escalator of the closed loop neural modulator to optimize sleep therapy for the patient.
    Type: Application
    Filed: August 21, 2009
    Publication date: March 4, 2010
    Applicant: Dymedix Corporation
    Inventors: Reinhold Henke, Evan S. Johnston, Thomas H. Zymowski, Peter Stasz