WO2014016719A1 - Appareil de régulation de stimuli ambiants au niveau d'un patient - Google Patents

Appareil de régulation de stimuli ambiants au niveau d'un patient Download PDF

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Publication number
WO2014016719A1
WO2014016719A1 PCT/IB2013/055624 IB2013055624W WO2014016719A1 WO 2014016719 A1 WO2014016719 A1 WO 2014016719A1 IB 2013055624 W IB2013055624 W IB 2013055624W WO 2014016719 A1 WO2014016719 A1 WO 2014016719A1
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WO
WIPO (PCT)
Prior art keywords
patient
stimuli
ambient
measured
control apparatus
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PCT/IB2013/055624
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English (en)
Inventor
Tim Johannes Willem Tijs
Murray Fulton Gillies
Stewart Young
Laura KLAMING
Original Assignee
Koninklijke Philips N.V.
Philips Deutschland Gmbh
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Application filed by Koninklijke Philips N.V., Philips Deutschland Gmbh filed Critical Koninklijke Philips N.V.
Publication of WO2014016719A1 publication Critical patent/WO2014016719A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/0618—Psychological treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
    • A61B5/0036—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room including treatment, e.g., using an implantable medical device, ablating, ventilating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/165—Evaluating the state of mind, e.g. depression, anxiety
    • 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
    • A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M21/02—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance
    • A61B5/0533—Measuring galvanic skin response
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/369—Electroencephalography [EEG]
    • A—HUMAN NECESSITIES
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    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4806—Sleep evaluation
    • A61B5/4809—Sleep detection, i.e. determining whether a subject is asleep or not
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4884—Other medical applications inducing physiological or psychological stress, e.g. applications for stress testing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
    • 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
    • A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
    • A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense
    • 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
    • A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
    • A61M2021/0044—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the sight sense
    • A61M2021/005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the sight sense images, e.g. video
    • 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
    • A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
    • A61M2021/0066—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus with heating or cooling
    • 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
    • A61M2205/502—User interfaces, e.g. screens or keyboards
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/04—Heartbeat characteristics, e.g. ECG, blood pressure modulation
    • A61M2230/06—Heartbeat rate only
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/08—Other bio-electrical signals
    • A61M2230/10—Electroencephalographic signals
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/42—Rate
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/65—Impedance, e.g. conductivity, capacity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0626—Monitoring, verifying, controlling systems and methods

Definitions

  • the invention relates generally to the field of medical devices, specifically to a controller for controlling ambient stimuli to a patient.
  • Position Emission Tomography may be used to detect various forms of brain diseases such as dementia, e.g. Alzheimer's disease since such diseases affect the metabolic brain activity in a distinctive way.
  • dementia e.g. Alzheimer's disease since such diseases affect the metabolic brain activity in a distinctive way.
  • the patient is given a radioactive glucose tracer such as FDG. Since the tracer and thereby the radioactivity is taken up in the brain depending upon the metabolic brain activity, specific patterns of radioactivity in the brain can be measured by a PET scanner. The measured patterns of radioactivity can be used for assisting a clinical diagnosis of brain diseases.
  • the uptake of the tracer may also depend on the patient's brain activity and thereby the patient's mental state and physical behavior.
  • Such inadvertent uptake of radioactive glucose tracer may complicate diagnosis and compromise the specificity of the pattern of measured radioactivity in the brain.
  • the inadvertent uptake of the tracer may even generate false positive results. For example, anxiety or stress but also sleep may affect the uptake of the glucose tracer and may therefore be sources of false positive brain activity compared the distinctive brain activity caused by brain diseases.
  • WO2008062384 discloses a patient carrier for use in a radiation imaging suite, the patient carrier comprising at least one sensor configured to detect one or more parameters in a group of environmental parameters in the radiation imaging suite and physiological parameters of a patient positioned on the patient carrier, and an event initiator arranged to initiate an event in the radiation imaging suite based on the one or more detected parameters.
  • the inventor of the present invention has appreciated that improved methods for making diagnosis of brain diseases using FDG-PET is of benefit, and has in consequence devised the present invention.
  • the invention preferably seeks to alleviate or eliminate problems with correct diagnosing caused by inadvertent uptake of FDG tracers in the brain due to the patient's brain activity.
  • a stimuli unit configured to determine a first stimulus on the basis of the first measured patient characteristic for reducing a stress level of the patient and a second stimulus on the basis of the second measured characteristic for making the patient more aware, wherein the first and second stimuli can be generated by the ambient stimuli system.
  • the capability of the control apparatus to determine both a stimulus for reducing stress or a stimulus for making the patient more aware to avoid that the patient falls asleep enables stimulating the patient so that the patient can be calmed in case the patient characteristics indicates too high stress levels and enables stimulating the patient so that the patient can be entertained more in case the patient characteristics indicates that the patient is close to fall asleep.
  • brain activity caused by stress or sleep may be avoided. Consequently, inadvertent uptake of a FDG tracer may be avoided so that brain disease patterns in PET images may be less distorted due to unwanted brain activity. Also the risk of generating false positive PET imaging results may be reduced since patterns in the PET image due to stress or sleep may be avoided.
  • the first measureable characteristic of the patient is indicative of a stress level and the second measureable characteristic of the patient is indicative of a sleep state level of the patient.
  • first and second measured patient characteristics are obtainable from first and second detectors.
  • different types of sensors may be used in order to obtain the most precise measurements of patient characteristics such as stress, sleep state or tiredness.
  • sensors include stress and sleep sensors.
  • the measurement unit is configured to store the first and/or second measured characteristics in a storage.
  • the storage of the measured patient characteristics may enable e.g. a doctor to better interpret the PET images since knowledge about specific patient characteristics measured during the uptake period may enable the trained doctor to compensate image results for possible special patient characteristics.
  • the stimuli unit is configured to determine the first and/or second stimuli also on the basis of patient data provided via an input to the stimuli control apparatus. Use of additional patient data may improve selection of stimuli or enable selection of stimuli which has best effect on the patient.
  • the ambient stimuli control apparatus is configured to communicate the patient data to a database and, dependent on the patient data, to retrieve stimuli data relevant for determining the first and/or second stimuli from the database. Accordingly, by comparing patient data with similar patient data in the database it may be possible to determine stimuli which has shown good results for other patients with patient data similar to the current patient.
  • the patient data in the database may have been obtained from previous patients which have been stimulated by stimuli determined by the stimuli control apparatus or other stimuli systems.
  • the ambient stimuli control apparatus is configured to communicate the first and/or second measured patient characteristics to a staff information device.
  • the staff may be notified in case of abnormal patient characteristics enabling the staff to intervene, e.g. wake up the patient.
  • the ambient stimuli control apparatus further comprises a patient guiding function configured to guide to patient to perform particular acts.
  • a second aspect of the invention relates to an ambient stimuli control system comprising:
  • a third aspect of the invention relates to a method for controlling an ambient stimuli system capable of presenting ambient stimuli for a patient, the method comprises:
  • the invention relates to an ambient stimuli control apparatus for controlling an ambient stimuli system capable of presenting ambient stimuli such as music or video for a patient.
  • the apparatus is intended for use during uptake of FDG tracers for patients which have to undergo a PET brain scanning.
  • the apparatus determines different stimuli on the basis of different measured patient characteristics.
  • the different stimuli are capable of reducing the patient's stress level and increasing the patient's awareness if the measured patient characteristics show either too high stress or too high tiredness, respectively.
  • Fig. 1 shows an ambient stimuli control apparatus 100 and a stimuli control system 199. DESCRIPTION OF EMBODIMENTS
  • Fig. 1 shows an ambient stimuli control apparatus 100 for controlling an ambient stimuli system 120.
  • the ambient stimuli system may comprise an audio system capable of generating music or sounds for the patient, a video system capable of displaying video or images for the patient or other devices capable of presenting ambient stimuli for a patient.
  • the ambient stimuli system may comprise one or more ambient stimuli devices or systems, e.g. an audio system combined with a video system.
  • the ambient stimuli control apparatus 100 comprises a measurement unit 103 for processing first and second measured patient characteristics.
  • the first and second measured patient characteristics are different characteristics.
  • the first characteristic of the patient may be indicative of a stress level and the second measureable characteristic of the patient may indicative of a tiredness level of the patient.
  • the first and second patient characteristics may be obtained from a single detector, or they may be obtained from individual first and second detectors 101, 102 (respectively) which may be different detectors or similar detectors.
  • the first and second detectors 101, 102 are normally different detectors suited for measuring different patient characteristics. However, the first and second detectors could also be the same physical detector capable of measuring different characteristics.
  • the first detector 101 may be a skin conductance detector such as a wristband detector capable of measuring the skin conductance. Skin conductance is indicative of the stress level of the patient, i.e. a low skin conductance indicates a relative high stress level.
  • the first detector 101 could also be a heart rate detector since heart rate may also be indicative of the stress level.
  • the first detector may also be embodied by a patient input means, e.g. a stress button, enabling the patient to indicate the current stress level by self-reporting.
  • the second detector 102 may be a camera configured to detect eye movement or eye-lid position which may be indicative of tiredness of the patient. E.g. if the eye-lid is almost closed, this may indicate that the patient is about to fall asleep.
  • the camera detector may also be able to measure heart rate by measuring chest movements.
  • the first and second detectors 101,102 could be embodied by the same detector, i.e. the same camera or two different cameras.
  • the second detector 102 could also be a brain detector capable of detecting brain signals such as alpha-waves. The level of alpha-waves is indicative of the tiredness or relaxation level of the patient and, therefore, the brain detector could embody the second detector 102 for detecting tiredness levels of the patient.
  • the second detector 103 may also be embodied by a patient input means, e.g. a tiredness button, enabling the patient to indicate if he or she feels tired.
  • examples of the first patient characteristic comprise stress level, skin conductance, respiration rate and heart rate.
  • examples of the second patient characteristic comprises tiredness level, relaxation level, eye-lid position, heart rate, respiration rate and alpha- wave level.
  • the processing capability of the measurement unit 103 may comprise receiving measurement signals from the first and second detectors 101, 102, scaling the detector signals or otherwise converting the signals into a form suitable for the stimuli unit 104.
  • the processing capability may also comprise combining signals from the first and second detectors into a single signal, e.g. a signal wherein high signal levels indicate a high stress level and low levels indicate a high level of tiredness.
  • the ambient stimuli control apparatus 100 further comprises a stimuli unit 104 configured to determine a first stimulus on the basis of the first measured patient characteristic for reducing a stress level and a second stimulus on the basis of the second measured value for making the patient more aware or less relaxed.
  • the first or second stimulus determined by the stimuli unit 104 may be in the form of a stimulus descriptor containing an ID number or name of the stimulus or the determined stimulus may contain the content of the stimulus.
  • the determined stimulus may be data (e.g. mp3 coded data) containing a piece of music or the stimulus may an ID number defining the same piece of music.
  • the stimuli unit 104 or the stimuli control apparatus 100 is configured to communicate the determined stimulus to the ambient stimuli system 120 which is able to generate the desired stimulus, e.g. by playing the music data containing the piece of music or by retrieving the piece of music from a music database based on the received ID number.
  • the first or second stimulus could also define a change of a stimulus, e.g. an increase or decrease in volume of an audio stimulus, an increase or decrease of room lighting intensity or room temperature, a change of the color setting of ambient room lighting or other changes of ambient stimuli.
  • a change of a stimulus e.g. an increase or decrease in volume of an audio stimulus, an increase or decrease of room lighting intensity or room temperature, a change of the color setting of ambient room lighting or other changes of ambient stimuli.
  • the stimuli unit 104 by means of the stimuli unit 104 and the measured first and second patient characteristics it may be possible to affect or stimulate the patient by means of the first and second stimuli so that the patient at one hand is calmed by the first stimulus to avoid too high stress levels and at the other hand is entertained by the second stimulus to avoid that the patient falls asleep.
  • the first and second stimuli are not generated at the same time. Since the mental state - and thereby brain activity - of a patient can be controlled it may be avoided that the brain activity shows patterns corresponding to high stress levels and patterns corresponding to sleep.
  • brain disease characteristics such as Alzheimer's disease characteristics in brain images obtained by a PET scanner after a FDG tracer has been taken up by the patient's brain are not compromised or distorted by specific brain activities generated by stress or sleep.
  • the stimuli control apparatus may comprise a patient guiding function 110 configured to guide the patient to keep the eyes closed or to guide to patient to perform other particular acts.
  • the guiding function 110 may be an audio system containing a recorded voice that reminds the patient to keep the eyes closed during the uptake period.
  • stress should be understood broadly to include similar mental states.
  • the first stimulus may be equally suited for reducing the patient's excitement, restlessness or anxiety.
  • a stress state level may refer to how stressed, relaxed or anxious a patient is.
  • the term awareness should be understood broadly to include similar mental states.
  • the second stimulus may be equally suited for reducing tiredness, changing the sleep state level away from sleep, reducing tendency to fall asleep, or reducing the relaxation level of a patient.
  • a sleep state level may refer to how tired, aware or relaxed a patient is.
  • the measured patient characteristics may advantageously be stored in a storage or database 105 a.
  • the stored measurement data may be used for interpretation of images obtained from the PET scan.
  • the stored measurement data shows large levels of the first patient characteristics the patient may have been very stressed during the uptake period despite attempts to calm the patient by use of the ambient stimuli.
  • Clinical experts may be able to determine a more precise diagnosis when it is known that the patient has been highly stressed.
  • the measured second patient characteristics may show that the patient had eyes open during a period in the PET uptake phase despite being instructed to keep eyes closed. Knowing that the patient had eyes open may explain high brain activity in the visual cortex area in the brain and, thereby, enable the clinical experts (e.g. a doctor) to correct the images for these additional patterns of high brain activity.
  • the stored patient shows large levels of the first patient characteristics the patient may have been very stressed during the uptake period despite attempts to calm the patient by use of the ambient stimuli.
  • Clinical experts may be able to determine a more precise diagnosis when it is known that the patient has been highly stressed.
  • the measured second patient characteristics may show that the patient had eyes open during a period in the PET uptake phase despite being instructed to keep eyes closed. Knowing that
  • the storage of the first and/or second measured patient characteristics may be enabled by the measurement unit 103 being configured to store the patient characteristics in the storage 105 a.
  • the first and/or second stimuli may be determined both on the basis of measured patient characteristics and other patient data such as age, gender, nationality, preferences for music/video genres and other non-measured patient characteristics. Thereby, it may be possible to determine a stimulus which has a higher chance of affecting the patient as desired. For example, if the patient is a female the stimuli unit 104 may be configured to not select soccer as a stimulation for making the patient more aware, since soccer may have the opposite effect on a female, i.e. making the female patient more tired. Accordingly, the stimuli unit 104 may be configured to determine the first and/or second stimuli also on the basis of patient data provided via an input 107 to the stimuli control apparatus 100.
  • the input 107 may be a user interface enabling the patient of clinical staff to input such additional patient information.
  • the patient data provided via the input 107 may be communicated by the stimuli unit 104 to a database 105b in order to compare the patient data with stored patient data in the database.
  • the provided input data may identify the patient as a male with preferences for jazz music.
  • the ambient stimuli control apparatus 100 may be configured to communicate the first and/or second measured patient
  • the ambient stimuli control apparatus 100 may be an independent system which is connectable with different kinds of ambient stimuli systems or devices 120, the ambient stimuli control apparatus 100 could also be configured as an ambient stimuli control system 199 which contains both an ambient stimuli control apparatus 100 and an ambient stimuli system or device 120.
  • the ambient stimuli control apparatus 100 and an ambient stimuli device 120 may be integrated into a bed side unit.

Abstract

L'invention concerne un appareil de régulation de stimuli ambiants (100) pour réguler un système de stimuli ambiants (120) qui est apte à présenter des stimuli ambiants, tels que de la musique ou une vidéo, à un patient. L'appareil est destiné à être utilisé pendant la prise de traceurs FDG pour des patients qui doivent subir un balayage de cerveau PET. De façon à éviter l'excitation de l'activité cérébrale involontaire, qui pourrait rendre le diagnostic de maladies cérébrales plus compliqué, l'appareil détermine différents stimuli sur la base de différentes caractéristiques de patient mesurées. Les différents stimuli sont aptes à réduire le niveau de stress du patient et à accroître la vigilance du patient si les caractéristiques de patient mesurées présentent soit un stress trop élevé, soit une fatigue trop élevée, respectivement.
PCT/IB2013/055624 2012-07-25 2013-07-09 Appareil de régulation de stimuli ambiants au niveau d'un patient WO2014016719A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261675386P 2012-07-25 2012-07-25
US61/675,386 2012-07-25

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WO2014016719A1 true WO2014016719A1 (fr) 2014-01-30

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Cited By (1)

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