Expert system simulator for modeling realistic internal environments and performance

• US 4,907,973 A
• Filed: 11/14/1988
• Issued: 03/13/1990
• Est. Priority Date: 11/14/1988
• Status: Expired due to Term

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: David C. Hon
• Inventors: Hon, David C.
• Primary Examiner(s): Coven, Edward M.
• Assistant Examiner(s): Szczepanik, Valerie A.
• Application Number:
  US07/270,012
• Time in Patent Office: 484 Days
• Field of Search: 434/262, 434/267, 434/272, 434/307, 434/265, 128/8
• US Class Current: 434/262
• CPC Class Codes: G09B 23/285 for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas

Abstract

A medical investigative system in which a person interacts with the system to interject information that is utilized by the system to establish non-restricted environmental modeling of the realities of surrogate conditions to be encountered with invasive or semi-invasive procedures. This is accomplished by video display of simulated internal conditions that appear life-like, as well as by display of monitor data including, for example, blood pressure, respiration, heart beat rate and the like.

Claims

1. An investigative medical system comprising:

(A) a physical model representing physically and spatially at least that portion of a patient on which a selected medical procedure is to be performed;

(B) at least one implement representing a medical procedural tool normally employed in conducting said selected medical procedure;

(C) moving means for moving and controlling said implement within said model;

(D) first memory means for storing data representing the internal landscape of said at least that portion of said patient; and

(E) means interconnected with said moving means and responsive to the position of said implement for producing and displaying a visual presentation of that portion of said internal landscape representing the region adjacent the active portion of said implement.

2. An investigative medical system according to claim 1 in which said physical model includes physical characteristics-imparting devices to impart realistic physical characteristics to said model.

3. An investigative medical system according to claim 1 in which said physical model includes a plurality of sensors located in predetermined positions within said model to track the position of said implement.

4. An investigative medical system according to claim 2 in which said physical model includes a plurality of sensors located in predetermined positions within said model to track the position of said implement.

5. An investigative medical system according to claim 2 in which said physical characteristics-imparting devices include constrictors.

6. An investigative medical system according to claim 4 in which said physical characteristics-imparting devices include constrictors.

7. An investigative medical system according to claim 2 in which said physical characteristics-imparting devices include spacers.

8. An investigative medical system according to claim 5 in which said physical characteristics-imparting devices include spacers.

9. An investigative medical system according to claim 6 in which said physical characteristics-imparting devices include spacers.

10. An investigative medical system according to claim 1 in which said tool is a catheter.

11. An investigative medical system according to claim 1 in which said tool is an endoscope.

12. An investigative medical system according to claim 4 in which said tool is an catheter.

13. An investigative medical system according to claim 4 in which said tool is an endoscope.

14. An investigative medical system according to claim 9 in which said tool is a catheter.

15. An investigative medical system according to claim 9 in which said tool is an endoscope.

16. An investigative medical system according to claim 9 in which said tool is a catheter and an endoscope.

17. An investigative medical system according to claim 1 in which said visual presentation is made on video-like screen.

18. An investigative medical system according to claim 17 in which said video-like screen is a conventional video monitor.

19. An investigative medical system according to claim 1 further including performance memory means for storing performance data representing a record of the performance of said medical procedure.

20. An investigative medical system according to claim 19 wherein said performance memory means comprises semiconductor storage means.

21. An investigative medical system according to claim 19 wherein said performance memory means comprises a magnetic disc.

22. An investigative medical system according to claim 19 wherein said performance memory means comprises a magnetic tape.

23. An investigative medical system according to claim 1 further including printing means effective, when activated, to print a record of predetermined data representing selected portions of said medical procedure.

24. An investigative medical system according to claim 1 further including idealized performance data storage means for storing idealized performance data representative of the idealized performance of said medical procedure.

25. An investigative medical system according to claim 24 further including means for accessing said idealized performance data and comparing said last mentioned data with data representing actual performance of said medical procedure to obtain comparison data.

26. An investigative medical system according to claim 25 further including translating means for translating said comparison data into perceptible data adapted for visual display.

27. An investigative medical system according to claim 26 further including comparison display means for displaying said perceptible data.

28. An investigative medical system according to claim 26 further including analysis means for analyzing said comparison data and for producing a critique display therefrom.

29. The method of performing a simulated medical procedure comprising the steps of:

(A) preparing a physical model representing physically and spatially at least the portion of a patient on which the procedure is to be performed;

(B) providing a first data storage means and storing data within first data storage means representing a realistic range of internal landscapes ordinarily encountered in patients for which predetermined medical procedures are ordinarily performed;

(C) identifying a pathology or diagnostic region set to be explored;

(D) inserting a medical procedural tool within said model;

(E) positioning said tool within said model and identifying the position of said tool within said model;

(F) accessing said first data storage means in response to the position of said tool within said model to retrieve selected data representing the one of said realistic internal landscapes represented by the position of said tool within said model;

(G) translating said selected data into visual form data; and

(H) displaying said visual form data in a visual display.

30. The method of performing a simulated medical procedure comprising the steps of:

(A) preparing a physical model representing physically and spatially at least that portion of a patient on which the procedure is to be performed;

(B) providing a first data storage means;

(C) storing data within first data storage means representing a realistic range of internal landscapes ordinarily encountered in patients for which predetermined medical procedures are ordinarily performed;

(D) identifying a pathology or diagnostic region set to be explored;

(E) selecting one of said predetermined medical procedures;

(F) inserting a medical procedural tool within said model;

(G) positioning said tool within said model;

(H) identifying and monitoring the position of said tool within said model;

(I) accessing said first data storage means in response to the position of said tool within said model to retrieve selected data representing the one of said realistic internal landscapes represented by the position of said tool within said model;

(J) translating said selected data into visual form data; and

(K) displaying said visual form data in a visual display.

31. A method according to claim 30 further including the step of printing said selected data.

32. A method according to claim 30 further including the step of positioning within said model a plurality of sensors for sensing the position of said tool.

33. A method according to claim 30 further including the step of positioning within said model a plurality of realism-imparting members for imparting to said model realistic feel to the positioning of said tool.

34. A method according to claim 30 further including the step of storing idealized data representing idealized performance of the selected one of said medical procedures.

35. A method according to claim 30 further including the step of collecting and storing performance data representative of the actual performance of the selected one of said procedures.

36. A method according to claim 34 further including the step of collecting and storing performance data representative of the actual performance of the selected one of said procedures.

37. A method according to claim 36 further including the step of comparing said performance data with said idealized data to produce comparison data.

38. A method according to claim 37 further including the step of translating said comparison data into visual form data.

39. A method according to claim 38 further including the step of displaying said visual form data.

40. A method according to claim 37 further including the step of printing said comparison data.

41. A method according to claim 35 wherein said step of storing performance data comprises the step of making a permanent record of said performance data.

42. A method according to claim 37 further including the step of analyzing said comparison data and producing a procedure critique.