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WO2000069337A1 - Appareils cpap et nippv a systeme de communications audio - Google Patents

Appareils cpap et nippv a systeme de communications audio Download PDF

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Publication number
WO2000069337A1
WO2000069337A1 PCT/AU2000/000450 AU0000450W WO0069337A1 WO 2000069337 A1 WO2000069337 A1 WO 2000069337A1 AU 0000450 W AU0000450 W AU 0000450W WO 0069337 A1 WO0069337 A1 WO 0069337A1
Authority
WO
WIPO (PCT)
Prior art keywords
controller
cpap
patient
treatment apparatus
conversion circuit
Prior art date
Application number
PCT/AU2000/000450
Other languages
English (en)
Inventor
Alexander Virr
Peter John Deacon Wickham
Original Assignee
Resmed Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Resmed Limited filed Critical Resmed Limited
Priority to AU45236/00A priority Critical patent/AU4523600A/en
Publication of WO2000069337A1 publication Critical patent/WO2000069337A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0021—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
    • A61M2205/3546—Range
    • A61M2205/3561—Range local, e.g. within room or hospital
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/52—General characteristics of the apparatus with microprocessors or computers with memories providing a history of measured variating parameters of apparatus or patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/581—Means for facilitating use, e.g. by people with impaired vision by audible feedback

Definitions

  • This invention relates to continuous positive airway pressure (CPAP) and Non
  • NPPV Invasive Positive Pressure Ventilation
  • CPAP and NIPPV apparatus function to supply a patient with a supply of clean breathable gas (usually air, with or without supplemental oxygen) at a prescribed pressure or pressures, at appropriate times during the patient's breathing cycle.
  • clean breathable gas usually air, with or without supplemental oxygen
  • An example of a suitable device in which the present invention may be included is the AutoSet ® T device (ResMed Ltd.), which may be used for treating sleep disordered breathing, such as Obstructive Sleep Apnea (OSA) and flow limitation, as described in US Patent . 5,704,345 (Berthon-Jones).
  • OSA Obstructive Sleep Apnea
  • NIPPV or CPAP apparatus typically include a flow generator, an air filter, a mask, an air delivery conduit connecting the flow generator to the mask, various sensors and a microprocessor-based controller.
  • the flow generator may include a servo-controlled motor and an impeller.
  • the flow generator may also include a valve capable of discharging air to atmosphere as a means for altering the pressure delivered to the patient as an alternative to motor speed control.
  • the sensors measure, amongst other things, motor speed, gas volumetric flowrate and pressure.
  • the apparatus may optionally include a humidifier in the air delivery circuit.
  • the controller may include data storage capacity with and without integrated data retrieval and display functions.
  • treatment apparatus will imply a reference to CPAP or
  • CPAP apparatus are mostly used and operated by the patients themselves in a home environment.
  • Conventional interaction with treatment apparatus is by a series of input devices such as pushbuttons, and output devices such as LEDs. LCDs, audible alarms and pressure indicators.
  • the sophistication of known treatment apparatus in functions such as timed or ramped start-up (for example as described in US Patent No. 5,199,424 and US Patent No. 5,522.382 assigned to ResMed Ltd) and mask fitting test modes can mean that a considerable degree of interaction by the patient with the apparatus is required.
  • status or diagnostic information on the operation of treatment apparatus is available from the controller.
  • the status or diagnostic information may include the set pressure, delay timer or ramp times, the expiratory (EPAP) phase pressure and the inspiratory (IPAP) phase pressure, patient compliance hours, the apparatus use history and fault information.
  • the status or diagnostic information is useful to one or more of the patient, clinician or service technician.
  • a known way of communicating with a CPAP apparatus is with a cabled remote control, for example, the REMStar ChoiceTM Machine (Respironics, Inc. Pittsburgh, PA, United States of America).
  • the remote control for this device has an On/Off button and a Ramp button.
  • UCU2 Clinical control units
  • the UCU2TM is typically used in a clinical setting by sleep study professionals and may be connected to a range of machines, such as the ResMed Ltd Sullivan IIITM group of CPAP machines, the ResMed Ltd Sullivan VTM group of CPAP machines or the ResMed Ltd VPAP IITM group of machines.
  • Connection of the UCU2 to the machine is via a physical lead, such as an 8-core cable with miniature 8-pin connector, or a cable with RJ11 connectors.
  • the UCU2 functions include the capacity to vary the parameter settings within the connected machine as well as analog outputs for connection to chart recorders to provide a record of signals such as the pressure, leak, and flow.
  • the UCU2 also includes an LCD screen for displaying information such as the connected machine's current operating mode and set pressure.
  • One alternative way to obtain the status or diagnostic information would be make a telephone call to the patient and request the patient to interrogate their treatment apparatus in the conventional manner; that is, through manipulation of the appropriate control switches.
  • This task often requires progressing through a sequence of data presented by the existing output device.
  • Many patients using treatment apparatus are limited in their ability to operate such a device because of the complexity of the operation or because they have limited physical movement and dexterity due to their age or illness. Further, they may suffer from poor eyesight.
  • the status or diagnostic information may be independent of patient perception.
  • the clinician may be interested to compare the treatment true compliance with the patient's perception of their degree of compliance.
  • An arrangement to independently and remotely obtain the status or diagnostic information is to download the information using a computer link and a modem, which may be built into the treatment apparatus. However, when used in a patient's home, this requires the patient to disconnect their telephone and connect the treatment apparatus directly to the telephone line. Alternatively, an additional telephone line is required.
  • modem-based communication requires that the person wishing to communicate remotely with the treatment apparatus has access to a computer and a modem.
  • the presented invention is directed to overcoming or at least ameliorating one or more of the disadvantages in the prior art.
  • the invention discloses CPAP or NIPPV treatment apparatus that provides information through audio communication, the apparatus comprising: a flow generator for supplying breathable gas; a controller for controlling operation of the flow generator; a conversion circuit; and announcement means coupled to the conversion circuit; wherein the controller provides output data concerning operation of the treatment apparatus to the conversion circuit that converts the data to an audio form to be output by the announcement means.
  • the audio form resembles the human voice.
  • the announcement means can be a loudspeaker, piezoelectric device or any the other suitable audio reproduction device.
  • the conversion circuit can include the sequential connection of a phrase memory, a sequencer and a digital-to-analog converter.
  • the announcement means provides information selectable between a variety of different languages, for example, English, French, German and Japanese.
  • the output data from the controller can be in response to input data, representing commands, instructions or numeric values, made by input devices of the treatment apparatus that are coupled to the controller.
  • the output data from the controller can be in response to operational or internal diagnostic states of the treatment apparatus determined by the controller.
  • Input commands or instructions can be provided by pushbuttons or the like, or by audio input means, for example, a tone detection circuit coupled to the controller. Additionally, the voice form information can also be transferred to a remote location via a telephone or radio link.
  • the invention further discloses a method for communicating information from CPAP or NIPPV treatment apparatus, the method comprising the steps of: generating an output data signal representing information concerning operation of the treatment apparatus that is to be communicated; converting the data signal into an audio form; and reproducing the audio form.
  • the audio form preferably resembles the human voice.
  • the method comprises the further steps of detecting an input command or instruction or an operational or internal diagnostic state of the treatment apparatus, and generating a relevant said output electrical signal in response thereto.
  • the method comprises the further steps of recording the input command or instruction in a data storage means.
  • an operator can remotely provide input instructions to the apparatus using a tone generator and obtain return information through voice communication via an audio communication link.
  • the invention further discloses a method for communicating information concerning a patient's CPAP machine to a remote location, comprising the steps of: establishing a telephone link between the remote location and the patient's telephone; establishing audio communication between the patient ' s telephone and the CPAP machine; sending a command message from said remote location via the telephone link to be audibly announced to said CPAP machine; and announcing an information containing response by said CPAP machine to be transmitted to said remote location by said telephone link.
  • the physician or technician can remotely interrogate the treatment apparatus without requiring complex equipment.
  • the treatment apparatus status could be checked using any ordinary pushbutton telephone, such as a standard mobile cellular phone.
  • this additional security feature can prevent inadvertent missetting of the treatment apparatus by the patient or another person, or the release to unauthorised persons of data, intended for addition to a patient's confidential medical file.
  • Fig. 1 shows a schematic block diagram of treatment apparatus having audio communication
  • Fig, 2 shows a further embodiment of treatment apparatus having voice communication output and tone input
  • Fig, 3 shows an exterior of treatment apparatus having voice communication
  • Fig. 4 shows a flowchart of a process for coordinating signals to input ports and from output ports of the treatment apparatus.
  • Fig. 5 shows a block diagram of an embodiment of the invention where the input device includes a speech recognition chip.
  • An NIPPV apparatus 10 is shown in Fig. 1 , and has a controllable motor/ impeller arrangement 12 receiving a supply of air or breathable gas and providing a flow of air or gas at an outlet to an air delivery hose 14 that transports the air or gas to a patient mask 16.
  • the output pressure of the NIPPV apparatus 10 is determined by the speed of the motor/ impeller arrangement 12, which is controlled by the controller 20.
  • the speed of the motor/ impeller arrangement 12 is cyclically changed to match patient respiratory phase providing the desired IPAP and EPAP phase pressures at the patient mask.
  • the invention also can be embodied in a constant level or automatically adjusting CPAP apparatus, such as the present Applicant's AutoSet T (TM) machine.
  • the controller 20 also receives data signals relating to pressure and flow in the delivery hose 14 from in-line sensors 18.
  • the controller 20 upon receiving data, representing commands, instructions or numerical values from input devices 22, further provides a corresponding or related output command to the voice output generator 24, associated with a loudspeaker 26.
  • the loudspeaker 26 outputs a corresponding simulated or pre-recorded human voice.
  • the controller includes a Central Processing Unit (CPU), memory, and input and output ports, such as parallel or serial ports.
  • the CPU executes code, which can read from and written to the input and output ports.
  • the input devices 22 can be implemented by pushbuttons, touch screens, or the like. Other forms of inputs to the controller 20 can result in the generation of an output signal to the voice generator 24. These can be diagnostic states generated within the controller 20 or in response to the pressure and flow sensors 18, so far as there may be an abnormal operational condition.
  • the voice output generator 24 includes a phrase memory 28 that stores a plurality of output phrases available for output to the loudspeaker 26.
  • the voice output generator 24 further includes a sequencer 30 that selects a combination of phrases from the phrase memory 28 to be outputted to the loudspeaker 26 via a digital to analog converter 32.
  • the voice output generator 24 can be embodied in an integrated circuit of the type MSM6650, manufactured by OKI of Japan. This integrated circuit includes digital memory in which phrases may be stored. This family of integrated circuits allows up to 2 megabits of phrase memory to be stored. The amount of memory required for each phrase is dependent on the sampling rate used.
  • a minimal set of phrases stored in the phrase memory 28 is listed in the following table:
  • Fig. 2 shows an electrical block diagram of the NIPPV apparatus 10, having a voice output generator 24 as well as a tone input arrangement by which commands or instructions can be provided.
  • the purpose of the tone input arrangement is to serve as alternative to the conventional input devices 22.
  • the NIPPV controller 20 can additionally receive inputs from the audio input device 40.
  • the operator who may be the patient or another person, would, using a tone generator 50, provide commands to the NIPPV controller via the audio input device 40.
  • the audio signals from the tone the generator 50 are received by the microphone 42 and supplied to a frequency discriminator 44 via an amplifier 46.
  • the frequency discriminator 44 provides inputs to the controller 20 that corresponds with the command represented by the audio signals from the tone generator 50.
  • the tone generator 50 is a DTMF generator and the frequency discriminator 46 is a DTMF decoder, accepting a sequence of tones and provides corresponding output signal to the controller 20.
  • Fig. 2 otherwise functions in the same manner as the embodiment of Fig. 1 so far as the output of information by the voice output generator 24 is concerned.
  • the loud speaker 26 and the microphone 42 are arranged on the NIPPV apparatus 10 with a suitable space between them, allowing a conventional telephone handset 60 to be placed adjacent them, facilitating remote communication.
  • the NIPPV apparatus is further equipped with a switch 61 to initiate the communication procedure.
  • this switch 61 can be illuminated to indicate successful communication. Should the NIPPV apparatus 10 not receive a valid command in a predetermined time period, the illumination for switch 61 can be switched off automatically.
  • the physician, technician, clinician or other person wishing to communicate remotely calls the patient and requests that the telephone handset 60 be placed over the microphone 42.
  • the patient then presses the "Talk” button 61 (step 100) on the NIPPV apparatus 10.
  • This button 61 is initially not illuminated (i.e. "lit”).
  • the NIPPV apparatus 10 detects DTMF tones (step 105), (omitting a few steps), the "talk” button 61 becomes illuminated (step 1 10).
  • This visual feedback enables the patient to know that the telephone handset 60 is correctly positioned. For example, the patient may inadvertently place the telephone handset microphone adjacent to the NIPPV apparatus microphone 42 inhibiting voice communication.
  • the controller 20 After successfully receiving DTMF tones, should the controller 20 not receive a valid command within a predetermined time, for example, 1 minute, then the "Talk” button 61 illumination will be turned off (step 115), and the procedure will end (step 120).
  • Fig. 4 shows various other steps not apparent to the patient when the talk button is pressed a timer (t) is set to the current time (step 125).
  • the time-out function follows (step 130).
  • step 130 there is command/digit discrimination between the "Enter” command (steps 135, 140), followed by a string length determination (steps 145, 150).
  • step 155 There is command/digit discrimination between the "Enter” command (steps 135, 140), followed by a string length determination (steps 145, 150).
  • the 'button lit' test then follows (step 155), after which the command/digit string is executed (step 160).
  • a command string is cleared once execution has occurred (step 165).
  • the person dialling remotely may dial a test tone. If the NIPPV apparatus 10 successfully detects the test tone, the NIPPV apparatus 10 will announce the phrase "Ready".
  • the person communicating remotely having first dialled the test tone and having heard that the NIPPV apparatus is "Ready”, may then proceed dialling the appropriate command, followed by the hash (#) key.
  • the NIPPV apparatus 10 then "answers".
  • a series of commands may be issued, each being followed by the hash key and each query being “answered”.
  • To terminate the call the person communicating remotely dials "99" followed by the hash key, at which point the "talk" button 61 illumination will be turned off.
  • the NIPPV apparatus 10 only reports the relevant number(s). For example, suppose the NIPPV apparatus 10 had the following conditions: pressure set point 15 cmH 2 O, previous session compliance time 5 hours, 10 minutes. The input and corresponding outputs are given in the following table:
  • the apparatus will speak a longer phrase describing the report, for example in response to an input of " 1#”, the apparatus will respond with "Patient compliance time", followed by the time.
  • a mobile phone (not illustrated) can be factory installed inside the treatment apparatus 10, with electrical connections to the speaker 26 and microphone 42 circuits. The person communicating remotely dials the number of the mobile phone and follows the same series of commands as in the previously described embodiment.
  • the phrase memory contains "help" files to assist either the local or remote user in operating the treatment apparatus.
  • a standard set of instructions may be stored regarding the use of the equipment and, optionally, particular instructions for the patient as for example might be provided by a physician.
  • the function of each button on the treatment apparatus is described by the pre-recorded or simulated voice output whenever that button is pressed.
  • the pre-recorded or simulated voice provides instructions as to how to assemble correctly the mask, harness and air delivery conduit.
  • the apparatus provides pre-recorded or simulated voice warnings when the apparatus is not correctly assembled, or when a part, for example, a filter, needs changing and may also deliver instructions to correct the situation.
  • the input device 22' includes a microcontroller to 180 with speech recognition faculty, such as the RSC- 164 integrated circuit (Sensory, Inc. CA, USA).
  • the input device 22' includes a microphone 182, a preamplifier and gain control section 1, 184, the RSC-164 chip 1 , 180 , and an external memory 1, 186, for example, Flash Memory.
  • remote communication with the treatment device 10 can be accomplished without the need to dial tone commands.
  • the speech recognition circuit 180 can recognise spoken instructions.
  • the speech recognition chip can be programmed to recognise numbers and commands such as "compliance", "faults", "apnea hypopnea index", “mean pressure”.
  • Flash memory 1, 186 as the external memory, the device can be customised to recognise different voices or languages. Once an input has been recognised, the appropriate data string is placed on the output bus 188 to the controller 20.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention porte sur un appareil d'assistance respiratoire du type NIPPV (10) muni d'une commande (20) agissant sur un groupe moteur/ventilateur (12) fournissant de l'air ou un gaz respirable sous pression à un masque (16) via une conduite (14). Ladite commande émet des signaux (20) relatifs à l'état diagnostiqué ou au fonctionnement, par exemple quant au respect du traitement par le patient, vers un générateur vocal (24) qui comporte une mémoire (28) stockant différentes phrases, mises en forme par un séquenceur (30), puis converties sous forme analogique, et diffusées par un haut-parleur.
PCT/AU2000/000450 1999-05-13 2000-05-12 Appareils cpap et nippv a systeme de communications audio WO2000069337A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45236/00A AU4523600A (en) 1999-05-13 2000-05-12 Cpap and nippv apparatus having audio communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ0331 1999-05-13
AUPQ0331A AUPQ033199A0 (en) 1999-05-13 1999-05-13 Cpap and nippv apparatus having audio communication

Publications (1)

Publication Number Publication Date
WO2000069337A1 true WO2000069337A1 (fr) 2000-11-23

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PCT/AU2000/000450 WO2000069337A1 (fr) 1999-05-13 2000-05-12 Appareils cpap et nippv a systeme de communications audio

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WO (1) WO2000069337A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10857399B2 (en) 2016-06-22 2020-12-08 Lucca Ventures, Inc. Patient respiratory mask with integrated microphone and method of patient communication utilizing the same
US11033699B2 (en) 2005-10-14 2021-06-15 ResMed Pty Ltd Flow generator message system
US11284175B1 (en) 2020-09-03 2022-03-22 Lucca Ventures, Inc. Modular communication device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390238A (en) * 1992-06-15 1995-02-14 Motorola, Inc. Health support system
WO1996016685A1 (fr) * 1994-11-25 1996-06-06 Block Medical, Inc. Systeme de perfusion programmable a distance
WO1997015240A1 (fr) * 1995-10-25 1997-05-01 Johns Hopkins University Systeme de soins medicaux a commande vocale
WO1998041279A1 (fr) * 1997-03-17 1998-09-24 Nims, Inc. Systeme de retour de l'information concernant des signes physiologiques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390238A (en) * 1992-06-15 1995-02-14 Motorola, Inc. Health support system
WO1996016685A1 (fr) * 1994-11-25 1996-06-06 Block Medical, Inc. Systeme de perfusion programmable a distance
WO1997015240A1 (fr) * 1995-10-25 1997-05-01 Johns Hopkins University Systeme de soins medicaux a commande vocale
WO1998041279A1 (fr) * 1997-03-17 1998-09-24 Nims, Inc. Systeme de retour de l'information concernant des signes physiologiques

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11033699B2 (en) 2005-10-14 2021-06-15 ResMed Pty Ltd Flow generator message system
US10857399B2 (en) 2016-06-22 2020-12-08 Lucca Ventures, Inc. Patient respiratory mask with integrated microphone and method of patient communication utilizing the same
US11771929B2 (en) 2016-06-22 2023-10-03 Lucca Ventures, Inc. Patient respiratory mask with integrated microphone and method of patient communication utilizing the same
US12011621B2 (en) 2016-06-22 2024-06-18 Lucca Ventures, Inc. Systems and methods for communication with a patient wearing a respiratory mask
US11284175B1 (en) 2020-09-03 2022-03-22 Lucca Ventures, Inc. Modular communication device

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Publication number Publication date
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