WO2005116958A1 - Simulateur anatomique - Google Patents

Simulateur anatomique Download PDF

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Publication number
WO2005116958A1
WO2005116958A1 PCT/AU2005/000752 AU2005000752W WO2005116958A1 WO 2005116958 A1 WO2005116958 A1 WO 2005116958A1 AU 2005000752 W AU2005000752 W AU 2005000752W WO 2005116958 A1 WO2005116958 A1 WO 2005116958A1
Authority
WO
WIPO (PCT)
Prior art keywords
illumination
simulating
human
colouring
anatomical
Prior art date
Application number
PCT/AU2005/000752
Other languages
English (en)
Inventor
Harry Owen
Karen Reynolds
Original Assignee
Flinders Meditech 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
Priority claimed from AU2004902841A external-priority patent/AU2004902841A0/en
Application filed by Flinders Meditech Pty Ltd filed Critical Flinders Meditech Pty Ltd
Publication of WO2005116958A1 publication Critical patent/WO2005116958A1/fr

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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
    • 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
    • G09B23/30—Anatomical models

Definitions

  • the method also includes detecting ambient illumination conditions and using the illumination controller to adjust the colour effect to compensate for the detected ambient illumination conditions.
  • Detected ambient illumination conditions may include light intensity and/or colour.
  • Figure 1 is a block diagram illustrating components of an embodiment of the invention.
  • Figure 3 is a graph illustrating the relationship between oxygen saturation and red and blue light illumination over the oxygen saturation range 50% to 100% at a blood pressure level of 120 mmHg.
  • the anatomical simulator of Figure 1 provides the body tissue simulating portion in the form of lips 2.
  • Each pixel of the LED array 4 is made up of matched red, green and blue LEDs which can be combined in different ways to produce rich colours. It is desirable that the illumination sources are sufficiently small and arranged so that the colour effect is smooth and realistic. Accordingly, certain large LED arrays or illumination sources may not be suitable. In some embodiments, it may be desirable to mount a plurality of individually controllable LEDs into an array of any size or shape which is appropriate for the body part being simulated. In some embodiments it is desirable to control the intensity of each LED individually.
  • illumination sensor 10 is provided in the form of a photodetector configured to measure the ambient lighting conditions and provide an illumination sensor signal to the illumination controller 6. This signal is used by the illumination controller to adjust the overall brightness of light emitted from the LED array. This enables the level of illumination to be adjusted to facilitate use of the anatomical simulator in different ambient lighting environments. For example, when the anatomical simulator is used outdoors during daytime where there is bright ambient lighting, the intensity of the colour effect created by the LED array is increased so that it can be seen easily. Similarly, in dimmer ambient lighting conditions the intensity of the colour effect created by the LED array is decreased so that the LED array doesn't have the appearance of a lamp or beacon.
  • values for oxygen saturation and blood pressure may be used as inputs 8 to the illumination controller 6 to control illumination of the red, blue and green LEDs in LED array 4 to create the desired colour effect.
  • these inputs are provided in the form user-adjustable buttons (as illustrated in Figure 2C).
  • values for oxygen saturation, blood pressure and parameters for other relevant physiological conditions could be read from another device automatically, or extracted from another application.
  • Such a device may be a control unit for a sophisticated medical mannequin.
  • an algorithm used by another simulation control unit may be used to provide inputs to the microcontroller, or the functionality of the microcontroller may be built into a larger control system.
  • illumination controller 6 determines a control signal (being a number value between 0 and 255) for each of the red, green and blue LEDs using oxygen saturation and blood pressure as parameters in the following cubic relationships.
  • a control signal being a number value between 0 and 255
  • oxygen saturation S
  • an algorithm for determining illumination of the red LED, R is:
  • an algorithm for determining illumination of the blue LED, B is:
  • equation 2 contains a function of blood pressure, f(BP) .
  • FIG. 4 shows a linear relationship between blood pressure and green light illumination over the range 60mmHg to 120mmHg.
  • 60mmHg very low blood pressure
  • green light emission is at a maximum value (255) which will result in a colour effect representative of very pale tissue colouring. That is, as the blood pressure input value is decreased, green light illumination is increased to create a paler colour effect in the lips 2.
  • 120mmHg normal blood pressure
  • Figure 4 shows an increase in the amount of blue light emitted as blood pressure decreases (simulated by an increase in the amount of green light emitted), for oxygen saturation levels above 85%.
  • the present invention may be used to simulate a colour effect in a number of model body parts simultaneously to create a realistic anatomical model.
  • a model may include lips, fingertips and eyes that simulate a colour response to physiological conditions or physiological changes which are provided as inputs to an illumination controller.
  • Use of an array of tri-colour LEDs enables fine control of the colour effect to give a realistic simulation.
  • the formulae specified herein facilitate continuous variation in the colour effect to simulate realistic and smooth colour changes as exhibited by actual patients experiencing certain changes in physiological conditions. This has obvious advantages over look up tables which may only allow incremental changes in the colour effect and which would result in a less realistic simulation.
  • the system can also be scaled readily for use in both small (neonatal) and large (adult) simulators. Whilst formulae are specified herein, it is to be understood that numerous different algorithms may be derived to create a desired colour effect whilst remaining within the scope of the invention. Accordingly, the present invention should not be limited by reference to the particular formulae specified herein.
  • An advantage of the present invention is that the body tissue simulation portion is not directly illuminated on a surface which is viewed by an observer. Rather, use of the illuminating sources in the present invention causes the body tissue simulation portion to become illuminating by diffusing light through the material from which it is formed.
  • a further advantage is that the present invention enables illumination to be modified according to the ambient illumination conditions. This enables light diffused from the anatomical simulator to be viewed in a wide range of conditions, both indoors and out, without the problem of the illumination sources appearing like a beacon. Also, the use of urethane rubber with grey dye added enables realistic simulation of colouring of the lips and other tissues for very low simulated oxygen levels (severe hypoxia). Moreover, varying the proportion of green light emitted from the illumination sources in combination with controlled amounts of blue and red light enables clinically realistic hues to be simulated for a range of blood pressure conditions and oxygen saturation conditions. It is to be understood that various modifications, additions and/or alterations may be made to the parts previously described without departing from the ambit of the present invention as defined in the claims appended hereto.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Algebra (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medical Informatics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Un simulateur anatomique simule des couleurs d'un être humain indicatrices d'un état physiologique. Ce simulateur anatomique comprend une partie simulation des tissus du corps (2), des sources d'éclairage (4) et un contrôleur d'éclairage (6). Les sources d'éclairage émettent de la lumière dans une pluralité de couleurs et sont agencées de façon à diffuser la lumière à travers la partie simulation des tissus du corps. Le contrôleur d'éclairage commande les sources d'éclairage de façon à créer un effet de couleur dans la partie simulation des tissus du corps indicateur d'un état physiologique.
PCT/AU2005/000752 2004-05-27 2005-05-27 Simulateur anatomique WO2005116958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004902841 2004-05-27
AU2004902841A AU2004902841A0 (en) 2004-05-27 An anatomical simulator

Publications (1)

Publication Number Publication Date
WO2005116958A1 true WO2005116958A1 (fr) 2005-12-08

Family

ID=35451084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2005/000752 WO2005116958A1 (fr) 2004-05-27 2005-05-27 Simulateur anatomique

Country Status (1)

Country Link
WO (1) WO2005116958A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2317489A1 (fr) * 2009-11-02 2011-05-04 Technische Universiteit Eindhoven Peau artificielle et simulateur de patient comportant la peau artificielle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036392A1 (de) * 1980-09-26 1982-05-13 Datamed Medizinische Datentechnik GmbH, 2000 Hamburg Modell eines lebewesens
WO1999038140A1 (fr) * 1998-01-21 1999-07-29 Evgeny Ivanovich Dedov Modele illustrant l'anatomie humaine
US20030073060A1 (en) * 1996-05-08 2003-04-17 Gaumard Scientific, Inc. Interactive education system for teaching patient care
US6638073B1 (en) * 1998-07-27 2003-10-28 Jury Borisovich Kazimirov Training device for teaching emergency help techniques for a person in an emergency situation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036392A1 (de) * 1980-09-26 1982-05-13 Datamed Medizinische Datentechnik GmbH, 2000 Hamburg Modell eines lebewesens
US20030073060A1 (en) * 1996-05-08 2003-04-17 Gaumard Scientific, Inc. Interactive education system for teaching patient care
WO1999038140A1 (fr) * 1998-01-21 1999-07-29 Evgeny Ivanovich Dedov Modele illustrant l'anatomie humaine
US6638073B1 (en) * 1998-07-27 2003-10-28 Jury Borisovich Kazimirov Training device for teaching emergency help techniques for a person in an emergency situation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2317489A1 (fr) * 2009-11-02 2011-05-04 Technische Universiteit Eindhoven Peau artificielle et simulateur de patient comportant la peau artificielle

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