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WO1993002439A1 - Appareil de demonstration medicale - Google Patents

Appareil de demonstration medicale Download PDF

Info

Publication number
WO1993002439A1
WO1993002439A1 PCT/AU1992/000365 AU9200365W WO9302439A1 WO 1993002439 A1 WO1993002439 A1 WO 1993002439A1 AU 9200365 W AU9200365 W AU 9200365W WO 9302439 A1 WO9302439 A1 WO 9302439A1
Authority
WO
WIPO (PCT)
Prior art keywords
bulb
manometer
restrictor
medical
way valve
Prior art date
Application number
PCT/AU1992/000365
Other languages
English (en)
Inventor
Robert William Futcher
Graham Frederick Orr
Original Assignee
Ticca Pty. Ltd.
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 Ticca Pty. Ltd. filed Critical Ticca Pty. Ltd.
Priority to AU23667/92A priority Critical patent/AU669121B2/en
Priority to EP92916235A priority patent/EP0595963A4/fr
Priority to JP5502487A priority patent/JPH07501952A/ja
Publication of WO1993002439A1 publication Critical patent/WO1993002439A1/fr

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine

Definitions

  • the present invention relates to medical demonstration apparatus and particularly discloses apparatus that provides an indication of cardiac exertion. BACKGROUND ART
  • a medical demonstration apparatus adapted for indicating cardiac exertion, said apparatus comprising an elastically and recoverably deformable hollow bulb including a one-way valve for re-inflating said bulb to atmospheric pressure, said bulb having an outlet leading to a manometer,
  • said apparatus upon squeezing said bulb said apparatus provides an indication of the cardiac exertion required to reach a predetermined pressure as indicated by said manometer.
  • the preferred embodiment of the present invention is specifically designed as a visual and tactile interactive simulation device whose purpose is primarily to impart the concepts of blood pressure, cardiac exertion and peripheral resistance.
  • it is visually reinforcing (it can be a model of a human heart); it demonstrates the effect of drug and other therapy on peripheral resistance; it demonstrates the influence of heart rate; it demonstrates the relationship between elevated diastolic blood pressure on producing extra-vascular coronary resistance; it demonstrates pulsatile pressure; it is best used as a dynamic model, requiring repeated application of pressure to maintain the desired effect.
  • Fig. 1 is a schematic diagram of the medical demonstration apparatus of a first embodiment
  • Fig. 2 is a schematic diagram of the medical demonstration apparatus of Fig 1 when pressure is applied;
  • Fig. 3 is a schematic diagram of the medical demonstration apparatus of Fig. 1 when pressure is released
  • Fig. 4 is a longitudinal cross-sectional view of the medical demonstration apparatus illustrating the heart shaped bulb and its base.
  • Fig. 5 is a detailed view of the connection between the heart shaped bulb and its base,and Fig. 6 is a cross-sectional view along the lines VI-VI of Fig. 4.
  • Fig. 7 is a schematic diagram of the medical demonstration apparatus of a second embodiment
  • Fig. 8 is a schematic diagram of the medical demonstration apparatus of Fig. 7 when pressure is applied
  • Fig. 9 is a schematic diagram of the medical demonstration apparatus of Fig. 7 when pressure is released.
  • BEST MODE OF CARRYING OUT THE INVENTION Referring to Figs. 1-3, the medical demonstration apparatus comprises a manometer 2 and a bulb 3. As illustrated in Fig. 4, the bull ) 3 is connected via a connector 4. The connector 4 is illustrated in 5 schematic form in Figs. 1-3 and the manometer 2 is connected to the connector 4 by a tube 5 as illustrated in Figs. 1-3.
  • the bulb 3 is made from a moulded plastics material and is preferably coloured and shaped to resemble a human heart.
  • the bulb 3 has a single opening 6 which sealing fits over a 10 ringed flange 7 of an inlet 8 of the connector 4. When the bulb 3 is squeezed and then released, air is forced out of and into the bulb 3 accordingly.
  • the connector 4 (as illustrated in Figs. 4-6) includes a base 10 through which an internal tube 11 passes to an outlet 12.
  • the inlet 8 15 and outlet 12 are thus able to communicate through the connector 4 for passing of air therethrough.
  • the connector 4 includes an annular aperture 13 located at the inlet 8.
  • the aperture 13 communicates with a pipe 19 which is received in one end of the internal tube 11.
  • the annular aperture 13 and the pipe 20 19 communicate by a one way flap valve 9.
  • the annular aperture 13 also is connected to a first restrictor 14 which communicates with a chamber 16 within the connector 4.
  • the chamber 16 is open to the atmosphere.
  • the connector 4 also includes a second aperture 17 which communicates with a second restrictor 15 into the chamber 16 which is 25 open to atmosphere.
  • a second one-way valve 18 prevents air from passing from the bulb 3 to the chamber 16 but allows air from the chamber 16 to pass into the valve in parallel with the first restrictor 14.
  • the operation of the apparatus is as follows.
  • the patient commences manually squeezing the bulb 3 to create pressure on the 30 manometer 2.
  • the air passes through the annular aperture 13 via the one way flap valve 15 and into the internal tube 11 and out of the outlet 12 into the tube 5 to the manometer 2.
  • air passes vie the annular aperture 13 through the first restrictor 14 into the chamber 16 and thence into atmosphere.
  • air passes through 5 the aperture 17 through the second restrictor 15 into the chamber 16 and thence into atmosphere.
  • the bulb 3 is released the air returns Into the bulb 3 simultaneously via the second valve 18 and second restrictor 15 while the air in the tube 5 is bled to atmosphere via the first restrictor 14 via the chamber 16.
  • a pumping action on the heart shaped bulb 3 causes a normal cyclical "blood" pressure reading indicated on the manometer 2.
  • manometer 2 reading cycling between 70 and 130mm Hg. From this, the patient gauges the normal requirements of cardiac exertion through the effort required to squeeze the bulb 3 as well as the indicator 10 pressure on the manometer 2.
  • the patient can vary the frequency of squeezing and the pressure applied to the bulb to experience the exertion required to simulate higher blood pressure readings.
  • the pumping action of the squeezing of the bulb 3, ensures further 15 air being allowed into the bulb 3 while the air in the tube is bled through the first restrictor 14.
  • the reading on the manometer 2 can be maintained according to the frequency and pressure of the squeezing of the bulb 3.
  • connector 104 is illustrated in a differenl ' 20 schematic form.
  • the connector 104 includes a first one way valve 109 and second restrictor 115.
  • the second restrictor 114 is open to the interior of the bulb 103.
  • the second one way valve 118 and the first restrictor 115 are positioned the same way.
  • the difference with the embodiment is how the air is bled from the manometer 102 back to the bulb 103. 25 INDUSTRIAL APPLICABILITY
  • the greater perception of the disease on the part of a patient lessens any resistance for accepting treatment and life style adjustments.
  • the patient is better able to 30 conceptualize the positive effects of treatment, which is usually by means of a course of medication.
  • the patient learns to associate the lowering of blood pressure with the lessening of grip pressure required to operate the apparatus 1 and is therefore better able to accept possible adverse reactions to the therapy. 5 .
  • the apparatus 1 provides a convenient and inexpensive way of communicating a complex medical issue between the medical practitioner and the patient.
  • the use of the apparatus 1 also provides for a number of advantages to the general public as it can be used in medical and nursing training as well as in general improving community awareness of the problems of high blood pressure and hypertension. As such, morbidity and mortality rates can be lowered.
  • the medical practitioner also obtains a number of advantages from the use of the apparatus 1 in that its use provides for a basis for the return of the patient for increased monitoring of the condition and the opportunity to diagnose other diseases. Also 1t provides for the opportunity to assess other risk factors (besides possibly increasing revenue for the the medical practitioner).
  • the use of the apparatus 1 saves time and provides an attractive alternative to other methods of communicating what can be, at times, mundane and non-challenging subject matter. It will also be understood, that the apparatus 1 can be used to overcome language barriers as its demonstration requires lessened explanation.
  • the apparatus 1 can be easily adapted by those skilled in the art for a variety of other supplementary uses.
  • the optional valve 7 is included so that the bulb 3 can be used as a sphygmomano eter bulb as known in the art.
  • the apparatus 1 can be used to demonstrate the concept of pulse, the functions of the heart, heart- anatomy, showing the problems associated with heart by-pass, demonstrate coronary occlusion as well as demonstrating problems associated with angina.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Physics (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Algebra (AREA)
  • Computational Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Optimization (AREA)
  • Medical Informatics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Instructional Devices (AREA)

Abstract

Appareil de démonstration médicale (1) conçu pour indiquer un effort cardiaque. L'appareil (1) comprend un élément bulbiforme creux (3), à déformation élastique et à mémoire de forme, et en forme de c÷ur. L'élément bulbiforme (3) est raccordé à un manomètre (2) par l'intermédiaire d'un raccord (4) et d'un tube (5), ce manomètre étant utilisé pour indiquer la pression artérielle. L'élément bulbiforme (3) peut être comprimé pour indiquer le niveau d'effort cardiaque requis pour atteindre une pression prédéterminée indiquée sur le manomètre (2).
PCT/AU1992/000365 1991-07-19 1992-07-17 Appareil de demonstration medicale WO1993002439A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU23667/92A AU669121B2 (en) 1991-07-19 1992-07-17 Medical demonstration apparatus
EP92916235A EP0595963A4 (fr) 1991-07-19 1992-07-17 Appareil de demonstration medicale.
JP5502487A JPH07501952A (ja) 1991-07-19 1992-07-17 医療表示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK734891 1991-07-19
AUPK7348 1991-07-19

Publications (1)

Publication Number Publication Date
WO1993002439A1 true WO1993002439A1 (fr) 1993-02-04

Family

ID=3775565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000365 WO1993002439A1 (fr) 1991-07-19 1992-07-17 Appareil de demonstration medicale

Country Status (4)

Country Link
EP (1) EP0595963A4 (fr)
JP (1) JPH07501952A (fr)
AU (1) AU669121B2 (fr)
WO (1) WO1993002439A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722413A (en) * 1991-07-19 1998-03-03 Cortech Development Pty Ltd Medical demonstration apparatus
US7044128B2 (en) * 2003-04-08 2006-05-16 Advanced Circulatory Systems, Inc. CPR demonstration device and methods
US9352111B2 (en) 2007-04-19 2016-05-31 Advanced Circulatory Systems, Inc. Systems and methods to increase survival with favorable neurological function after cardiac arrest
US9675770B2 (en) 2007-04-19 2017-06-13 Advanced Circulatory Systems, Inc. CPR volume exchanger valve system with safety feature and methods
US9724266B2 (en) 2010-02-12 2017-08-08 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US9811634B2 (en) 2013-04-25 2017-11-07 Zoll Medical Corporation Systems and methods to predict the chances of neurologically intact survival while performing CPR
US9949686B2 (en) 2013-05-30 2018-04-24 Zoll Medical Corporation End-tidal carbon dioxide and amplitude spectral area as non-invasive markers of coronary perfusion pressure
US10034991B2 (en) 2011-12-19 2018-07-31 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US10265495B2 (en) 2013-11-22 2019-04-23 Zoll Medical Corporation Pressure actuated valve systems and methods
US10512749B2 (en) 2003-04-28 2019-12-24 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
US12016820B2 (en) 2010-02-12 2024-06-25 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029830A1 (fr) * 1993-06-11 1994-12-22 Ticca Pty. Ltd. Appareil de demonstration de la tension arterielle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624334A (en) * 1951-09-11 1953-01-06 Epstein Charles Blood pressure taking device
US3670720A (en) * 1971-05-04 1972-06-20 Norman Panzer Power-assisted inflation assembly for sphygmomanometers
US4254562A (en) * 1979-02-14 1981-03-10 David Murray Combination cardiovascular electronic display/teaching apparatus, system and methods of constructing and utilizing same
EP0166828A1 (fr) * 1982-12-18 1986-01-08 Ford Motor Company Limited Pompe à air actionnée à la main

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568333A (en) * 1969-06-27 1971-03-09 Medical Supply Co Heart for teaching and practicing external cardiac compression
JPS5996163A (ja) * 1982-11-01 1984-06-02 ゼネラル・エレクトリツク・カンパニイ 脱揮発物押出し機を使用する室温硬化性シリコ−ンゴムの製造法
SU1298792A1 (ru) * 1984-05-16 1987-03-23 Донецкий медицинский институт им.М.Горького Модель дыхательного аппарата человека
DE8701359U1 (de) * 1987-01-28 1988-06-01 Wehner, Arthur, 8012 Ottobrunn Gerät zum Üben der Herz-Lungen-Wiederbelebung
JPH082532B2 (ja) * 1988-10-11 1996-01-17 東芝シリコーン株式会社 熱加硫型シリコーンゴムコンパウンドの連続的製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624334A (en) * 1951-09-11 1953-01-06 Epstein Charles Blood pressure taking device
US3670720A (en) * 1971-05-04 1972-06-20 Norman Panzer Power-assisted inflation assembly for sphygmomanometers
US4254562A (en) * 1979-02-14 1981-03-10 David Murray Combination cardiovascular electronic display/teaching apparatus, system and methods of constructing and utilizing same
EP0166828A1 (fr) * 1982-12-18 1986-01-08 Ford Motor Company Limited Pompe à air actionnée à la main

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0595963A4 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722413A (en) * 1991-07-19 1998-03-03 Cortech Development Pty Ltd Medical demonstration apparatus
US7044128B2 (en) * 2003-04-08 2006-05-16 Advanced Circulatory Systems, Inc. CPR demonstration device and methods
US10512749B2 (en) 2003-04-28 2019-12-24 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
US9352111B2 (en) 2007-04-19 2016-05-31 Advanced Circulatory Systems, Inc. Systems and methods to increase survival with favorable neurological function after cardiac arrest
US9675770B2 (en) 2007-04-19 2017-06-13 Advanced Circulatory Systems, Inc. CPR volume exchanger valve system with safety feature and methods
US12220378B2 (en) 2007-04-19 2025-02-11 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US11679061B2 (en) 2007-04-19 2023-06-20 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US11020313B2 (en) 2007-04-19 2021-06-01 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US10478374B2 (en) 2007-04-19 2019-11-19 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US11969551B2 (en) 2009-06-19 2024-04-30 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
US11583645B2 (en) 2009-06-19 2023-02-21 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
US12016820B2 (en) 2010-02-12 2024-06-25 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US11123261B2 (en) 2010-02-12 2021-09-21 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US9724266B2 (en) 2010-02-12 2017-08-08 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US10874809B2 (en) 2011-12-19 2020-12-29 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US11654253B2 (en) 2011-12-19 2023-05-23 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US10034991B2 (en) 2011-12-19 2018-07-31 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US9811634B2 (en) 2013-04-25 2017-11-07 Zoll Medical Corporation Systems and methods to predict the chances of neurologically intact survival while performing CPR
US11488703B2 (en) 2013-04-25 2022-11-01 Zoll Medical Corporation Systems and methods to predict the chances of neurologically intact survival while performing CPR
US10835175B2 (en) 2013-05-30 2020-11-17 Zoll Medical Corporation End-tidal carbon dioxide and amplitude spectral area as non-invasive markers of coronary perfusion pressure
US9949686B2 (en) 2013-05-30 2018-04-24 Zoll Medical Corporation End-tidal carbon dioxide and amplitude spectral area as non-invasive markers of coronary perfusion pressure
US10265495B2 (en) 2013-11-22 2019-04-23 Zoll Medical Corporation Pressure actuated valve systems and methods

Also Published As

Publication number Publication date
JPH07501952A (ja) 1995-03-02
AU2366792A (en) 1993-02-23
EP0595963A4 (fr) 1995-07-05
EP0595963A1 (fr) 1994-05-11
AU669121B2 (en) 1996-05-30

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