Apparatus and method for synchronizing cardiac rhythm related events

• US 5,769,641 A
• Filed: 12/17/1996
• Issued: 06/23/1998
• Est. Priority Date: 05/13/1992
• Status: Expired due to Term

• Current Assignee: University of Florida Research Foundation, Incorporated (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:
  US08/767,947
• Time in Patent Office: 553 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 apparatus and method for synchronizing output devices related to a cardiac rhythm in real time in an integrated patient simulator during simulated medical surgery includes a manikin, at least one output device including devices for simulating a cardiac pulse and a radial pulse, a first computer associated with the patient simulator for generating an electric cardiac rhythm synchronizing pulse, a second computer for receiving the cardiac rhythm synchronizing pulse and generating a simulated response thereto, and a distributed processing network for transmitting the cardiac rhythm synchronizing pulse between the first computer and the second computer and for transmitting the simulated response between the second computer and the output device. In this way, a time offset to allow for simulated travel time or lag of the simulated cardiac pulse through the body can be added by the second computer where appropriate for certain subsystems or monitors associated with the patient simulator.

Claims

1. An apparatus for synchronizing output devices related to a cardiac rhythm in real time in an integrated patient simulator during simulated medical surgery, comprising:

a. a manikin;

b. at least one output device associated with the manikin;

c. a first programmed computing means capable of generating at least one electric cardiac rhythm synchronizing pulse;

d. a distributed processing network connected to said first programmed computing means and said at least one output device for transmitting said at least one electric cardiac rhythm synchronizing pulse; and

e. a second programmed computing means connected to said distributed processing network for calculating a simulated response to the at least one cardiac rhythm synchronizing pulse and for actuating via the distributed processing network the at least one output device associated with the manikin in real time.

2. The apparatus of claim 1, wherein the distributed processing network is a star network.

3. The apparatus of claim 1, wherein the at least one output device emulates a radial pulse in the manikin.

4. The apparatus of claim 3, wherein said second programmed computing means introduces a time delay in the at least one cardiac rhythm synchronizing pulse to emulate the radial pulse in said manikin.

5. The apparatus of claim 4, wherein a second output device emulates a carotid pulse in the manikin, and wherein the time delay introduced by said second programmed computing means causes the radial pulse emulated in the manikin to occur after the carotid pulse emulated in the manikin, and at an identical frequency as the carotid pulse.

6. The apparatus of claim 5, wherein the carotid pulse and the radial pulse emulated in the manikin exhibit identical simulated arrhythmias.

7. The apparatus of claim 1, wherein the simulated response is calculated by said second programmed computing means according to a time-and-event-based script, a computer model or a combination of a time-and-event-based script and a computer model based on a physiological state of said integrated patient simulator.

8. A method of synchronizing cardiac rhythm related events in real time in an integrated simulator during simulated medical procedures using a manikin, comprising the steps of:

a. generating at least one electric pulse, corresponding to a cardiac rhythm synchronizing pulse, in a first programmed computing means;

b. transmitting throughout a distributed processing network associated with the integrated patient simulator the at least one electric pulse to a second programmed computing means;

c. processing the at least one electric pulse in said second programmed computing means; and

d. generating a response in at least one output device associated with the manikin based on the processed electric pulse.

9. The method of claim 8, wherein the distributed processing network is a star network.

10. The method of claim 8, wherein the step of generating a response in at least one output device comprises emulating a radial pulse in the manikin.

11. The method of claim 10, wherein said processing step comprises introducing a time delay in the cardiac rhythm synchronizing pulse to emulate the radial pulse in said manikin.

12. The method of claim 11, further comprising emulating a carotid pulse in a second output device associated with the manikin, and wherein the time delay introduced in said processing step causes the radial pulse emulated in the manikin to occur after the carotid pulse emulated in the manikin, and at an identical frequency as the carotid pulse.

13. The method of claim 12, wherein the carotid pulse and the radial pulse are emulated in the manikin to exhibit identical simulated arrhythmias.

14. The method of claim 8, wherein said processing step comprises calculating a simulated response to the at least one electric pulse based on a time-and-event-based script, a computer model or a combination of a time-and-event-based script and a computer model based on a physiological state of said integrated patient simulator.

15. An apparatus for actuating an output device related to a cardiac rhythm in real time in an integrated patient simulator, comprising:

a. a manikin having an output device associated therewith;

b. a first programmed computing means capable of generating a cardiac rhythm synchronizing pulse;

c. a second programmed computing means for receiving the cardiac rhythm synchronizing pulse and generating a simulated response thereto; and

d. a distributed processing network for communicating the cardiac rhythm synchronizing pulse between said first programmed computing means and said second programmed computing means, and for communicating the simulated response between said second programmed computing means and the output device.

16. The apparatus of claim 15, wherein said distributed processing network is a star network.

17. The apparatus of claim 15, wherein the output device emulates a radial pulse in said manikin.

18. The apparatus of claim 17, wherein said second programmed computing means introduces a time delay in the cardiac rhythm synchronizing pulse to emulate the radial pulse in said manikin.

19. The apparatus of claim 18, further comprising a second output device which emulates a carotid pulse in the manikin, and wherein the time delay introduced by said second programmed computing means causes the radial pulse emulated in the manikin to occur after the carotid pulse emulated in the manikin, and at an identical frequency as the carotid pulse.

20. The apparatus of claim 19, wherein the carotid pulse and the radial pulse emulated in the manikin exhibit identical simulated arrhythmias.

21. The apparatus of claim 15, wherein the simulated response is calculated by said second programmed computing means according to a time-and-event-based script, a computer model or a combination of a time-and-event-based script and a computer model based on a physiological state of said integrated patient simulator.