Dymedix Corporation Patent applications |
Patent application number | Title | Published |
20160066810 | COMBINATION PHYSIOLOGIC SENSOR - 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. | 03-10-2016 |
20160022212 | REUSABLE RESPIRATORY EFFORT SENSOR MODULE - 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. | 01-28-2016 |
20140330156 | APPARATUS AND METHOD FOR ADAPTING A PIEZOELECTRIC RESPIRATORY SENSING BELT TO A RESPIRATORY INDUCTANCE PLETHYSMOGRAPHY POLYSOMNOGRAPH - 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. | 11-06-2014 |
20100076252 | PYRO/PIEZO SENSOR AND STIMULATOR HYBRID CIRCUIT - 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. | 03-25-2010 |
20100076251 | PYRO/PIEZO SENSOR AND STIMULATOR - 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. | 03-25-2010 |
20100069773 | WIRELESS PYRO/PIEZO SENSOR SYSTEM - 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. | 03-18-2010 |
20100069772 | WIRELESS PYRO/PIEZO SENSOR TRANSCEIVER - 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. | 03-18-2010 |
20100069771 | WIRELESS PYRO/PIEZO SENSOR - 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. | 03-18-2010 |
20100069769 | WIRELESS PYRO/PIEZO SENSOR BASE STATION - 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. | 03-18-2010 |
20100063350 | Anti-habituating sleep therapy for a closed loop neuromodulator - 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. | 03-11-2010 |
20100063348 | Stimulus sequencer for a closed loop neuromodulator - 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. | 03-11-2010 |
20100057148 | Stimulus timer for a closed loop neuromodulator - This document discusses, among other things, a system and method for preventing stimulus delivery to a patient for a predetermined interval after commencing sleep therapy to ensure that the patient is asleep. An indication of abnormal respiration activity can be received from an activity detector of a closed loop neuromodulator at a therapy delay gate. The indication of abnormal respiration activity can be provided to a sleep disorder gate after a predetermined delay interval following commencement of the sleep therapy. A sleep disorder event can be detected if the indication of abnormal respiration activity exceeds a predetermined sleep disorder interval, and a stimulus start signal can be provided to the closed loop neuromodulator in response to the detected sleep disorder event. | 03-04-2010 |
20100056942 | Activity detector for a closed loop neuromodulator - This document discusses, among other things, method and apparatus for detecting abnormal respiration activity. Clock pulses can be passed through a first gate when digital airflow information indicates a first respiration state, summed, and compared to a first count threshold, and a respiration activity output can be generated using the comparison. | 03-04-2010 |
20100056941 | Device controller and datalogger for a closed loop neuromodulator - This document discusses, among other things, a system and method for communicating sleep therapy information between a closed loop neuromodulator, configured to optimize sleep therapy, and a remote diagnostic terminal. A state machine can control the closed loop neuromodulator, by exchanging the sleep therapy information with using a device register, and the sleep therapy information can be routed between the device register and the state machine using an internal data bus. | 03-04-2010 |
20100056882 | SENSOR KITS FOR SLEEP DIAGNOSTIC TESTING - 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. | 03-04-2010 |
20100056855 | Closed loop neuromodulator - This document discusses, among other things, a system and method for optimizing a sleep therapy using a closed loop neuromodulator. A first sleep disorder event can be detected using first activity information, and a first stimulus can be provided, in response to the first sleep disorder event, using a set of stimulus parameters. Termination of the first sleep disorder event can be detected using second activity information, and at least one therapy parameter can be adjusted to decrease an energy level of a subsequent stimulus. | 03-04-2010 |
20100056853 | Stimulus generator for a closed loop neuromodulator - 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. | 03-04-2010 |
20100056852 | Stimulus escalator for a closed loop neuromodulator - This document discusses, among other things, a system and method for modulating an energy level of a sleep therapy stimulus signal for a patient. A stimulus driver signal can be provided to a closed loop neuromodulator using a stimulus signal and a stimulus duration signal, and an energy level of the stimulus signal can be adjusted using a selected escalation envelope function. | 03-04-2010 |
20100049265 | EMI/ESD hardened sensor interface for a closed loop neuromodulator - This document discusses, among other things, apparatus and mthiods for protecting an input and electronics of a closed loop neuromodulator. Electromagnetic interference (EMI) can be reduced using an EMI filter. Energy surges can be dissipated using a electrostatic discharge (ESD) device. An analog and a digital output can be produced using respiration information received at an input, each output indicative of resiration effort. | 02-25-2010 |
20100049264 | Diagnostic indicator and PSG interface for a closed loop neuromodulator - This document discusses, among other things, a system and method for providing diagnostic information from a closed loop neuromodulator, configured to provide sleep therapy for a patient, to a user or a polysomnograph (PSG). A first portion of the diagnostic information can be received at a diagnostic indicator register of the closed loop neuromodulator and an LED driver can be switched using the first portion of the diagnostic information. A second portion of the diagnostic information can be received at a PSG interface of the closed loop neuromodulator and provided to the PSG for display. | 02-25-2010 |
20100048986 | Dosage optimization for a closed loop neuromodulator - This document discusses, among other things, a system and method for optimizing a sleep therapy using a closed loop neuromodulator. A first sleep disorder can be detected using first activity information, and a first stimulus can be provided, in response to the first sleep disorder event, using a set of stimulation parameters. The first sleep disorder can be detected using second activity information, at least one of the set of stimulation parameters can be adjusted, and a second stimulus can be provided using the adjusted set of stimulus parameters, wherein the second stimulus has more energy than the first stimulus. | 02-25-2010 |
20100048985 | EMI/ESD hardened transducer driver driver for a closed loop neuromodulator - This document discusses, among other things, a system and method for protecting electronics of a closed loop neuromodulator, configured to optimize sleep therapy for a patient, from electromagnetic interference (EMI) or electrostatic discharge (ESD). A transducer signal can be provided, at an output of a hardened sensor interface, to a sleep therapy transducer. EMI can be reduced between the output and the electronics using an EMI filter and a grounded metal shield, and an ESD protection device, coupled to the grounded metal shield, can be provided to protect the electronics of the closed loop neuromodulator from an energy surge. | 02-25-2010 |
20100010362 | REUSEABLE SNORE/AIR FLOW SENSOR - A sensor for use with a polysomnograph in a sleep lab setting is made reusable by laminating a PVDF film and associated lead contacts within a flexible, moisture-impervious plastic envelope that is hermetically sealed about its periphery. Lead terminals within the envelope are adhered to the metalized surfaces of the PVDP film using a conductive adhesive which inhibits dislodgement of the leads from the sensor even with rough handling and cleaning. | 01-14-2010 |
20090318781 | RESPIRATORY AIR TEMPERATURE AND PRESSURE SENSOR - 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. | 12-24-2009 |
20090318780 | APPARATUS AND METHOD FOR PROCESSING RESPIRATORY AIR TEMPERATURE AND PRESSURE INFORMATION - An apparatus or method can be configured to receive information indicative of respiratory air temperature of a subject from a respiratory air temperature piezoelectric film sensor and information indicative of respiratory air pressure of the subject from a respiratory air pressure piezoelectric film sensor, and to simultaneously process the received respiratory air temperature information and the received respiratory air pressure information to produce a first electronic signal output indicative of respiratory air temperature and a second electronic signal output indicative of respiratory air pressure. | 12-24-2009 |
20090287265 | AGITATOR TO STIMULATE THE CENTRAL NERVOUS SYSTEM - 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. | 11-19-2009 |
20090264784 | APPARATUS AND METHOD FOR CREATING MULTIPLE FILTERED OUTPUTS FROM A SINGLE SENSOR - Multiple different output signals for a polysomnograph (PSG) machine, the multiple different output signals including a first output indicative of an upper airway restriction (UAR), a second output indicative of an airway pressure during respiration, and a third output indicative of an airway air temperature during respiration, can be produced using a single sensor input. | 10-22-2009 |
20090259135 | APPARATUS AND METHOD FOR CREATING MULTIPLE POLARITY INDICATING OUTPUTS FROM TWO POLARIZED PIEZOELECTRIC FILM SENSORS - An apparatus or method can be configured to receive first information indicative of respiratory effort of a subject from a first piezoelectric film sensor and second information indicative of respiratory effort of the subject from a second piezoelectric film sensor, and to process the received first and second information to produce an electronic signal output indicative of respiratory effort of the subject, the processing including averaging the received first information using a first differential amplifier and signal integrator with resistive reset to reduce differential noise and to attenuate common-mode noise, and averaging the received second information using a second differential amplifier and signal integrator with resistive reset to reduce differential noise and to attenuate common-mode noise. | 10-15-2009 |