Apparatus and method of simulating the determination of continuous blood gases in a patient simulator

• US 5,941,710 A
• Filed: 12/17/1996
• Issued: 08/24/1999
• Est. Priority Date: 05/13/1992
• Status: Expired due to Term

• Current Assignee: Florida State University Research Foundation, Inc. (State University System of Florida)
• Original Assignee: University of Florida Research Foundation, Incorporated (State University System of Florida)
• Inventors: Lampotang, Samsun, Carovano, Ronald G., Gravenstein, Joachim S., Good, Michael L., van Meurs, Willem L.
• Primary Examiner(s): Leubecker, John P.
• Application Number:
  US08/767,949
• Time in Patent Office: 980 Days
• Field of Search: 434/262, 434/265, 434/266, 434/267, 434/268, 434/272, 434/275, 128/774
• US Class Current: 434/272
• CPC Class Codes: A61B 5/00 Measuring for diagnostic purposes radiation diagnosis A61B6/00; diagnosis by ultrasonic, sonic or infrasonic waves A61B8/00; Identification of persons
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/1106 to assess neuromuscular blockade, e.g. to estimate depth of anaesthesia
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/411 Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
• CPC Class Codes: A61B 5/7405 using sound
• CPC Class Codes: A61B 7/003 Detecting lung or respiration noise
• CPC Class Codes: G09B 23/28 for medicine
• CPC Class Codes: G09B 23/285 for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas

Abstract

An integrated patient simulator for training or other purposes capable of realistically reacting to a current physiological state and physiological model. A patient simulator and method of patient simulation wherein a physical gas composition representative of a simulated alveolar gas composition in a lung model is determined, and a simulated blood gas machine simulates an output representative of a simulated physiological state based at least in part on the simulated alveolar gas composition.

Claims

1. An apparatus for simulating the determination of continuous blood gases in real time in an integrated patient simulator during simulated medical procedures, comprising:

a. a manikin having an associated lung model for simulating a physiological state of the integrated patient simulator;

b. means for determining a physical gas composition in the lung model representative of a simulated alveolar gas composition, the simulated physiological state of the integrated patient simulator being based at least in part on the simulated alveolar gas composition; and

c. a simulated continuous blood gas machine associated with the manikin and capable of simulating an output representative of the simulated physiological state of the integrated patient simulator.

2. The apparatus of claim 1, wherein the physiological state comprises simulated arterial oxygen partial pressure in the blood, simulated arterial carbon dioxide partial pressure in the blood, simulated blood temperature, simulated blood pH, or a combination thereof.

3. The apparatus of claim 1, wherein the simulated continuous blood gas machine comprises a display panel for displaying the output.

4. The apparatus of claim 1, wherein said lung model comprises a mechanical lung.

5. The apparatus of claim 4, wherein said mechanical lung is self-regulating.

6. The apparatus of claim 4, wherein said mechanical lung comprises at least one bellows capable of receiving and expelling a gas.

7. A method of simulating the monitoring of continuous blood gases in real time in an integrated patient simulator during simulated medical procedures using a manikin having an associated lung model, comprising the steps of:

a. determining a physical gas composition in the lung model representative of a simulated alveolar gas composition;

b. determining a physiological state of the integrated patient simulator based at least in part on the simulated alveolar gas composition;

c. computing blood gas information based on the determined physiological state; and

d. simulating an output of a continuous blood gas machine according to the computed blood gas information.

8. The method of claim 7, wherein the physiological state comprises simulated arterial oxygen partial pressure in the blood, simulated arterial carbon dioxide partial pressure in the blood, simulated blood temperature, simulated blood pH, or a combination thereof.

9. The method of claim 7, wherein the simulated output occurs on a display panel.

10. An apparatus for simulating the determination of blood gases in a patient simulator, said apparatus comprising:

a. a lung model associated with the patient simulator;

b. means for determining a physical gas composition in the lung model representative of a simulated alveolar gas composition; and

c. a simulated blood gas machine for generating an output representative of a simulated physiological state at least partially dependant upon the simulated alveolar gas composition.

11. The apparatus of claim 10, wherein said lung model comprises a mechanical lung.

12. The apparatus of claim 11, wherein said mechanical lung is self-regulating.

13. The apparatus of claim 11, wherein said mechanical lung comprises at least one bellows capable of receiving and expelling a gas.

14. The apparatus of claim 10, wherein said simulated blood gas machine comprises a display panel for generating the output.

15. The apparatus of claim 10, wherein the simulated physiological state comprises simulated arterial oxygen partial pressure in the blood, simulated arterial carbon dioxide partial pressure in the blood, simulated blood temperature, simulated blood pH, or a combination thereof.

16. The apparatus of claim 10, wherein said simulated blood gas machine comprises a simulated continuous blood gas machine.