WO1998055015A1 - Dispositif servant a faciliter un diagnostic medical - Google Patents

Dispositif servant a faciliter un diagnostic medical Download PDF

Info

Publication number
WO1998055015A1
WO1998055015A1 PCT/NL1997/000315 NL9700315W WO9855015A1 WO 1998055015 A1 WO1998055015 A1 WO 1998055015A1 NL 9700315 W NL9700315 W NL 9700315W WO 9855015 A1 WO9855015 A1 WO 9855015A1
Authority
WO
WIPO (PCT)
Prior art keywords
day
function
microprocessor structure
programmed
instructions
Prior art date
Application number
PCT/NL1997/000315
Other languages
English (en)
Inventor
Harmen Jacob Palsma
Jack Brugts
Original Assignee
Harmen Jacob Palsma
Jack Brugts
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 Harmen Jacob Palsma, Jack Brugts filed Critical Harmen Jacob Palsma
Priority to PCT/NL1997/000315 priority Critical patent/WO1998055015A1/fr
Publication of WO1998055015A1 publication Critical patent/WO1998055015A1/fr

Links

Classifications

    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0406—Constructional details of apparatus specially shaped apparatus housings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0443—Modular apparatus
    • A61B2560/045—Modular apparatus with a separable interface unit, e.g. for communication

Definitions

  • TITLE Medical diagnosis support device
  • the invention relates to a device for supporting medical diagnosis. From practice various appliances are known to help medical and paramedical personnel in performing first aid assistance, such as resuscitation in the event of a cardiac arrest.
  • first aid assistance such as resuscitation in the event of a cardiac arrest.
  • Such devices do not contribute to solving the problem of providing instantaneous support after an incident or symptoms have occurred, but have to be brought to the patient first. For example, about one-third of the deaths in North America are caused by heart attacks and more than half of these were dead on arrival at a hospital. Even if only a small proportion of these deaths could be prevented by prompt Cardiopulmonary Resuscitation (CPR) a large number of deaths could be prevented. CPR can also save lifes in cases of drowning, suffocating, electrocution and drug overdose ("First Aid Handbook" by Alton L. Thygerson, Jones and Bartlett Publishers, 1994, ISBN 0-86720-846-5 and 0-86720-943-7) .
  • CPR Cardiopulmonary Resus
  • this object is achieved by providing a device for supporting first aid assistance in accordance with claim 1.
  • the invention is based on the insight, that if a device for supporting medical diagnosis is incorporated in a pocket size or wearable device fulfilling another day-to-day function, such as knowing the time, keeping keys together or providing telecommunication facilities, which type of device is usually taken along by the user in at least very many occasions anyway, and such devices are worn by an important number of people in a given area, the likelihood that, in the event of an incident or illness in that area, support for medical diagnosis is directly available, is increased substantially.
  • first aid can not only be provided more adequately by persons having relatively little experience or expertise, but such persons are also reassured, so that hesitation to help, which often occurs, can be overcome in many cases .
  • Fig. 1 is a frontal view of a device according to the invention in the form of a wrist watch
  • Fig. 2 is a schematic representation of the device according to Fig. 1,
  • Fig. 3 is a flow chart representing an example of an algorithm programmed in the device according to Figs . 1 and 2,
  • Fig. 4 is a frontal view of a second example of a device according to the invention in the form of a key-fob, and
  • Fig. 5 is a frontal view of a third example of a device according to the invention in the form of a mobile telephone.
  • the wristwatch shown in Fig. 1 is adapted to fulfil the function of a device for supporting first aid in emergency situations .
  • the wristwatch comprises a casing 1 which is wearable on the body by means of a metal bracelet 2.
  • a microprocessor structure 3 which includes a commercially available IC-chip 4 which is programmed for generating instructions for providing first aid treatment to injured or ill human beings.
  • the hardware programmed control structure may also be provided in other forms, such as for example in the form of a GAL.
  • a user interface is provided in the form of a speech generator 5 (a commercially available speech chip) which is connected to the microprocessor structure 3 for transferring the instructions into human audible form.
  • a speech generator 5 a commercially available speech chip
  • an amplifier 6 is connected to a mini-loudspeaker 7 for transducing the electrical drive signals from the amplifier 6 into sound.
  • the loudspeaker 7 is located in a section 8 of the casing 1.
  • a further user interface is provided in the form of an optical display structure 9 having an optical display 10 (Fig. 1) .
  • providing the instructions in audible form and more in particular in spoken form is generally preferable over providing the instructions in visible or human readable form, since it allows the user to concentrate more fully on the victim.
  • he or she can refer to the optical display to learn the instructions which would otherwise have been missed.
  • the shown device functions as a conventional wristwatch.
  • the microcontroller 3 In normal day-to-day use, the shown device functions as a conventional wristwatch. To this end, the microcontroller 3
  • the shown wristwatch is further provided with a "yes" button 15 and a "no" button 16 which are connected to the microcontroller 3 as well.
  • the watch is provided with first, second third and fourth function buttons 11, 12, 13, 14.
  • first function button 11 a diagnosis and treatment protocol for providing first aid to suddenly unconscious adult persons not suffering from hypothermia can be started. This protocol is described in more detail hereinafter with reference to Fig. 3.
  • second button 12 a diagnosis and treatment protocol for providing first aid to patients suffering from breathing problems can be started.
  • the third button 13 is a reset and return button.
  • the fourth button 14 is a scroll button for scrolling between different menu's in which the other buttons have temporary other functions, for example for setting an alarm or for switching between languages or diagnosis protocols.
  • the shown wristwatch performs the function of showing the time, which function is widely appreciated in day-to-day life, the user can easily incorporate the daily use of the device in his normal behaviour, in which the user will generally be used to wearing a wristwatch anyway.
  • Fig. 3 is started if the first function button 11 is pressed. The start of the algorithm is designated as step 17.
  • the programming of the microprocessor structure 4 is stored in circuits of the microprocessor structure. Thus, the programming is not lost if batteries are empty or changed and the function of first aid support is always directly activable with no perceptible delay.
  • the audible and visible message "talk to victim" and the question “Reaction?” are generated repeatedly at step 18 until either the "yes” button or the : “no” button is pressed. These messages are simultaneously displayed as is shown in Fig. 1.
  • the algorithm then continues with a section 20 dealing with re-activating or maintaining the patient's breathing. Protocols for re-activating or maintaining a patient's breathing are well known in the art. Therefore this section 20 of the algorithm is not described in more detail than appears from the flow chart. If the response "no" has >been entered by pressing the respective button 16 (step 21) , the next audible and visible instruction which is generated is "Give pain stimulus" .
  • the question “Reaction?” is generated too and simultaneously displayed (step 22).
  • the device is responsive to pressing of the "yes” or the “no” button by generating an audible “yes” or, respectively “no” confirmation and by activating a LED in the respective button.
  • the reset and return button 13 By operating the reset and return button 13 , the user can make one step back in the algorithm as is designated for example by the "Reset” arrows in Fig. 3. At each stage, operating the reset and return button 13 allows the user to step back through the algorithm, for example to correct erroneous entries.
  • step 23 the algorithm continues with the same first step of the section 20 which followed the "yes” response to the question whether the patient reacted to being spoken to.
  • step 24 the audible and visible instruction "check pulse rate” is generated at step 25.
  • the audibly generated and simultaneously visually displayed question is "Pulse present?".
  • This latter question is in fact a double-check of the victim's condition to verify that the victim is indeed suffering of cardiac arrest so that cardiac massage can be given without adversely affecting a functioning heart.
  • the algorithm again continues with the same first step of the section 20 which followed the "yes” response to the question whether the patient reacted to being spoken to. If the "no" button 16 is operated (step 27) , the device immediately responds with the instruction "call 1-1-2 (or any other pre-programmed alarm number) , start Cardiopulmonary Resuscitation" and the question “One helper?" (step 28) .
  • the instruction “five compressions and one breath” is generated and displayed and, immediately, pulses at a frequency of 80-100 and preferably 90 1/min are generated for cardiac massage (step 30) .
  • a red LED incorporated in the "no" button 16 flashes at the same frequency. Since the LEDs are provided at the front of the watch, these are easily visible during cardiac massage.
  • one helper can carry out the cardiac massage at a frequency indicated by the sounds generated by the watch. Each time five strokes have been counted and completed, the other helper can carry out one mouth-to-mouth resuscitation breathing .
  • step 31 If the response to the question "One helper?" is "yes” (step 31), then the instruction “fifteen compressions and two breaths” is generated and displayed and, immediately, pulses at a frequency of 80-100 and preferably 90 1/min are generated for cardiac massage (step 32) . Simultaneously a red LED incorporated in the "no" button 16 flashes at the same frequency .
  • step 33 After the cycles for cardiac massage and mouth-to-mouth resuscitation have been indicated for 60 seconds, at step 33, the instruction "Check pulse” and the question “Pulse present?" are generated like at step 25. If a response "yes” is entered, the programme continues with step 26 which has been discussed before. A small but significant portion of stopped cardiac functions can be recovered by such a short cardiac massage and further cardiac massage would generally only do harm to the recovered cardiac function.
  • the cardiac arrest is generally of a type which typically cannot be reverted by commonly available means and the cardiac massage and mouth-to-mouth resuscitation have to be continued until external help has arrived to limit brain damage due to lack of oxygen.
  • the instruction "Continue CPR" is generated (step 35) . If after 10 minutes no external help has arrived with instruments, successful resuscitation becomes less and less likely. Optionally signals to this effect can be given. Of course the helper should stop CPR or at least cardiac massage if the victim shows any sign of recovery, otherwise the heart of which the function is recovering would be adversely affected by the further massage.
  • the first button 11 can be pressed two times . once for stopping the running algorithm and once for restarting the diagnosis protocol to take into account the changed condition of the victim.
  • diagnosis protocol interactively responsive to inputted responses, and by operatively connecting the microprocessor structure to the control buttons for inputting the responses, the user is substantially helped to follow a generally accepted diagnosis protocol to determine whether CPR is appropriate in the situation at hand.
  • This helps users to take the right action and encourages users, who typically have not encountered the need to carry out resuscitation before, ov rcome hesitation and unsureness and to try to help the victim as much as they can.
  • the system may be refined to for example to select different diagnosis strategies and different manners of resuscitation for children and babies.
  • the frequency of the signals indicating the rhythm of cardiac massage is for instance preferably 100 signals per minute for children and 120 signals per minute for babies.
  • a device which is activable to generate a sequence of signals at a frequency of 75-140 1/min and preferably at least three selectable sequences of signals at frequencies of 80-100, 95-105 and 115-125 1/min are important to help carrying out cardiac massage more effectively.
  • the availability of guidance with respect to the frequency of cardiac massage reassures persons in a typically stressful situation in which cardiac massage to be carried out.
  • the device according to the present example provides a particularly effective support, because the microprocessor structure 4 is programmed to automatically switch to the sequence of signals to support cardiac massage in response to particular responses which indicate that cardiac massage is appropriate .
  • the present invention is not limited to the above described example and many variations are conceivable within the framework of the present invention.
  • the programming of the device may for example contain algorithms based on protocols for the diagnosis or first aid treatment of many other illnesses and incidents, although the watch is particularly useful to identify situations in which quick action is advantageous, such as loss of blood, shock or
  • a device according to the invention in which a wide range of diagnostic protocols is programmed is for instance particularly useful for members of medical personnel who are frequently confronted with patients having more or less sudden symptoms. In such cases preliminary measures, quick collection of the appropriate data or just the ability to give a preliminary answer before diagnosis by a specifically consulted doctor can provide important relief.
  • Other persons for whom the device according to the invention is particularly useful are persons having relatives, roommates or the like suffering from heart and other diseases .
  • the display may be adapted to display symbols in addition to or instead of alphanumeric characters as is shown in the examples.
  • the display may also be adapted to show moving images demonstrating actually showing how the diagnosis or treatment.
  • the display can for example be provided in the form of an LCD display.
  • a device may also be provided in a form in which its housing forms a key-fob 48 for performing the second, day-to-day function by keeping keys together, in the shown example, the key-fob is provided with a display and "yes" and "no" buttons 50, 51.
  • control means can also be provided in the form of voice control, so that the helpers has both hands free while carrying out the diagnosis.
  • Another option is to provide the device according to the invention in the form of a mobile telephone 52 for performing the second, non-medical day-to-day function by providing portable telecommunication.
  • a particular advantage of providing a device according to the invention in the form of a mobile telephone is, that use can be made of the loudspeaker 53 of the telephone 52 to generate the spoken instructions and that the telephone can also be used to automatically search external assistance and to automatically repeat collected data in spoken form to the contacted assistance centre.
  • buttons 56, 57 are typically provided in most mobile telephones.
  • a large button 58 is provided in a prominent position.
  • a device preferably fit within a box having internal dimensions of 16 x 6 x 3 cm or less and a wearable device is preferably provided with a clip, a strap or a string to suspend the device to the body or to a piece of clothing worn by the user.

Abstract

Dispositif servant à faciliter un diagnostic médical, se présentant sous un format de poche ou pouvant être porté sur le corps et comprenant un microprocesseur (3) programmé afin de remplir une première fonction de recueil de données concernant les symptômes d'un patient, une interface utilisateur (5, 6, 7, 9) reliée au microprocesseur (3) afin de donner des instructions concernant les données à recueillir sous une forme perceptible pour l'homme, ainsi que des moyens de commande (15, 16; 50, 51; 56-58) servant à entrer les données. Ce dispositif est également conçu pour remplir une deuxième fonction courante. En condition de fonctionnement, la première fonction peut être mise en service de façon permanente et directe en réaction à une opération effectuée par l'utilisateur. L'incorporation de ce dispositif servant à faciliter un diagnostic médical sous format de poche ou portable afin de remplir un autre besoin courant, permet d'augmenter sensiblement ses chances de disponibilité directe en cas d'incident.
PCT/NL1997/000315 1997-06-05 1997-06-05 Dispositif servant a faciliter un diagnostic medical WO1998055015A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/NL1997/000315 WO1998055015A1 (fr) 1997-06-05 1997-06-05 Dispositif servant a faciliter un diagnostic medical

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL1997/000315 WO1998055015A1 (fr) 1997-06-05 1997-06-05 Dispositif servant a faciliter un diagnostic medical

Publications (1)

Publication Number Publication Date
WO1998055015A1 true WO1998055015A1 (fr) 1998-12-10

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ID=19866194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1997/000315 WO1998055015A1 (fr) 1997-06-05 1997-06-05 Dispositif servant a faciliter un diagnostic medical

Country Status (1)

Country Link
WO (1) WO1998055015A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027860A1 (fr) * 1999-02-09 2000-08-16 Tanita Corporation Dispositif et système de gestion de l'état de santé
EP1491175A1 (fr) * 2003-06-27 2004-12-29 Zoll Medical Corporation Dispositif de réanimation cardio-respiratoire avec feedback de mesure du rythme cardiaque et/ou de l'oxygénation sanguine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611948A1 (fr) * 1987-02-25 1988-09-09 Levy Rene Dispositif pour la reconnaissance mutuelle automatique d'une information du type tout ou rien entre deux personnes en presence
US4863385A (en) * 1987-01-05 1989-09-05 Pierce Richard S Cardiopulmonary resuscitation (CPR) sequencer
US5086391A (en) * 1989-02-24 1992-02-04 Chambers Bryan R Remote controller for activating speech messages and for contacting emergency services
US5088037A (en) * 1990-03-23 1992-02-11 Anthony Battaglia Portable rescue administration aid device
WO1995000939A1 (fr) * 1993-06-23 1995-01-05 Presmatec S.A. Objet personnel portant des indications medicales
WO1996006490A1 (fr) * 1994-08-18 1996-02-29 Omnipoint Corporation Systeme de telecommunication a spectre etale a bandes multiples et a modes multiples

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863385A (en) * 1987-01-05 1989-09-05 Pierce Richard S Cardiopulmonary resuscitation (CPR) sequencer
FR2611948A1 (fr) * 1987-02-25 1988-09-09 Levy Rene Dispositif pour la reconnaissance mutuelle automatique d'une information du type tout ou rien entre deux personnes en presence
US5086391A (en) * 1989-02-24 1992-02-04 Chambers Bryan R Remote controller for activating speech messages and for contacting emergency services
US5088037A (en) * 1990-03-23 1992-02-11 Anthony Battaglia Portable rescue administration aid device
WO1995000939A1 (fr) * 1993-06-23 1995-01-05 Presmatec S.A. Objet personnel portant des indications medicales
WO1996006490A1 (fr) * 1994-08-18 1996-02-29 Omnipoint Corporation Systeme de telecommunication a spectre etale a bandes multiples et a modes multiples

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027860A1 (fr) * 1999-02-09 2000-08-16 Tanita Corporation Dispositif et système de gestion de l'état de santé
US6327495B1 (en) 1999-02-09 2001-12-04 Tanita Corporation Health management device and health management system
US7087016B2 (en) 1999-02-09 2006-08-08 Tanita Corporation Health management device and health management system
EP1491175A1 (fr) * 2003-06-27 2004-12-29 Zoll Medical Corporation Dispositif de réanimation cardio-respiratoire avec feedback de mesure du rythme cardiaque et/ou de l'oxygénation sanguine
US7190999B2 (en) 2003-06-27 2007-03-13 Zoll Medical Corporation Cardio-pulmonary resuscitation device with feedback from measurement of pulse and/or blood oxygenation

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