Method and apparatus for monitoring and displaying heart rate and blood pressure product information

• US 4,404,974 A
• Filed: 08/07/1981
• Issued: 09/20/1983
• Est. Priority Date: 08/07/1981
• Status: Expired due to Fees

• Current Assignee: Medrad Incorporated (Bayer AG)
• Original Assignee: Possis Medical, Inc. (Bayer AG)
• Inventors: Titus, John S.
• Primary Examiner(s): Apley, Richard J.
• Assistant Examiner(s): Yonulis, George
• Application Number:
  US06/291,023
• Time in Patent Office: 774 Days
• Field of Search: 128/670, 128/672, 128/696, 128/700, 128/710, 128/713
• US Class Current: 600/483
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 40/63 for local operation

Abstract

A method and apparatus for monitoring and digitally displaying primate heart rate and systolic blood pressure product information. The apparatus has a microprocessor programmed to respond to signals relating to heart rate and systolic blood pressure and provide a digital output of the current product information and a two minute average of the product information. Separate LED displays are used to present the current and two minute average product information. An audible alarm operates to alert the personnel caring for the patient in the event that the pulse rate and blood pressure product exceeds a selected level. Operator controls are operable to read the input values, silence the alarm, read the external preset trip point, read the internal power supply and reference voltages, and verify the operations of all segments of all digits.

Claims

1. A method of providing heart rate and blood pressure product information of a primate comprising:

sensing the heart rate of a primate, providing a first signal related to the sensed heart rate, sensing the systolic blood pressure of the primate simultaneously with the sensing of the heart rate of the primate, providing a second signal related to the systolic blood pressure simultaneously with the first signal, combining the first and second signals to produce current heart rate and systolic blood pressure product information and time delayed heart rate and systolic blood pressure product information, visually displaying current heart rate and systolic product information and time average heart rate and systolic product information derived from the combined first and second signals, and actuating a recognizable alarm when the time average heart rate and systolic blood pressure information exceed a selected level.

2. The method of claim 1 wherein:

the time average heart rate and systolic blood pressure product information is periodically updated.

3. The method of claim 2 wherein:

the time average is about a two minute average which is updated in about 10 second intervals.

4. The method of claim 1 wherein:

the first and second signals are combined and coordinated with a micropressor programmed to produce current heart rate and systolic blood pressure product information and a timed average heart rate and systolic blood pressure product information.

5. The method of claim 4 wherein:

the program of the microprocessor is characterized with a heart rate and systolic blood pressure product information level determined by the heart rate and systolic blood pressure of the primate.

6. The method of claim 4 wherein:

the time average heart rate and systolic blood pressure product information is periodically updated.

7. The method of claim 1 wherein:

an audible alarm is actuated when the heart rate and blood pressure exceeds a selected level.

8. The method of claim 1 wherein:

the current heart rate and blood pressure product information and time average heart rate and blood pressure product information are simultaneously presented on separate displays.

9. The method of claim 8 wherein:

the current and time product information are each present on a digital read-out display.

10. A method of providing heart rate and blood pressure product information of a primate comprising:

sensing the heart rate of a primate, providing a first signal related to the sensed heart rate, sensing the blood pressure of the primate, providing a second signal related to the sensed blood pressure, coordinating the first and second signals to provide a product signal of said first and second signals, and providing readable data of current heart rate and blood pressure product information and time average heart rate and blood pressure product information derived from the product signal.

11. The method of claim 10 including:

simultaneously sensing the heart rate and blood pressure of the primate and simultaneously providing the first signals and second signals.

12. The method of claim 10 wherein:

the systolic blood pressure of the primate is sensed.

13. The method of claim 10 wherein:

the first and second signals are coordinated with a microprocessor programmed to produce current heart rate and blood pressure product information and a timed average heart rate and blood pressure product information.

14. The method of claim 13 wherein:

the program of the microprocessor is characterized with a heart rate and blood pressure product information level determined by the heart rate and blood pressure of the primate.

15. The method of claim 13 wherein:

an audible alarm is actuated when the heart rate and blood pressure exceeds a selected level.

16. The method of claim 13 wherein:

the time average heart rate and blood pressure product information is periodically updated.

17. The method of claim 16 wherein:

the time average is about two minutes which is updated in about 10 second intervals.

18. The method of claim 13 wherein:

the current heart rate and blood pressure product information time average heart rate and blood pressure product information are simultaneously presented on separate displays.

19. The method of claim 18 wherein:

the current and time product information are each present on a digital read-out display.

20. A method of providing heart rate and blood pressure product information of a primate comprising:

sensing the heart rate of a primate, providing a first signal related to the sensed heart rate, sensing the blood pressure of the primate simultaneously with the sensing of the heart rate, providing a second signal related to the sensed blood pressure, combining the first and second signals to produce a product signal of said first and second signals and visually displaying current heart rate and blood pressure product information and time average heart rate and blood pressure product information derived from the product signal.

21. The method of claim 20 wherein:

the time average heart rate and blood pressure product information is periodically updated.

22. The method of claim 21 wherein:

the time average is about a two minute average which is updated in about 10 second intervals.

23. The method of claim 20 wherein:

the systolic blood pressure of the primate is sensed.

24. The method of claim 20 wherein:

the first and second signals are combined and coordinated with a microprocessor programmed to produce current heart rate and blood pressure product information and a timed average heart rate and blood pressure product information.

25. The method of claim 24 wherein:

the program of the microprocessor is characterized with a heart rate and blood pressure product information level determined by the heart rate and blood pressure of the primate.

26. The method of claim 24 wherein:

the time average heart rate and blood pressure product information is periodically updated.

27. The method of claim 20 including:

an audible alarm which is actuated when the heart rate and blood pressure exceeds a selected level.

28. The method of claim 20 wherein:

the current heart rate and blood pressure product information, time average heart rate and blood pressure product information are simultaneously presented on separate displays.

29. The method of claim 28 wherein:

the current and time product information are each present on a digital read-out display.

30. In combination:

first means for monitoring the heart rate of a primate and generating a first signal relating to the heart rate, second means for monitoring the blood pressure of the primate simultaneously with the monitoring of the heart rate and generating a second signal related to systolic blood pressure, and an apparatus operatively coupled to said first and second means to receive said first and second signals, said apparatus having means for providing a product of said first and second signals and utilizing the product of said first and second signals to present current heart rate and blood pressure product information and a time average heart rate and blood pressure product information.

31. The structure of claim 30 wherein:

said first means is an EKG monitor having said first signal, and said second means is a blood pressure monitor providing said second signal.

32. The structure of claim 30 wherein:

said means of the apparatus includes display means having digital displays for visually presenting the current heart rate and blood pressure product information and time average heart rate and blood pressure product information.

33. The structure of claim 30 wherein:

said means of the apparatus includes first display means having digital displays for visually presenting the current heart rate and blood pressure product information and said means for displaying said average information including second display means having second digital displays for visually presenting the time average heart rate and blood pressure product information.

34. The structure of claim 30 wherein:

said apparatus includes second means to continuously update said time average information.

35. The structure of claim 34 wherein:

said second means provides an updated two-minute average heart rate and blood pressure product information.

36. The structure of claim 30 wherein:

said apparatus includes alarm means operable to produce an alarm signal when the time average heart rate and blood pressure product information exceeds a selected value.

37. In combination:

EKG monitor means for monitoring the heart rate of a primate and generating a first signal relating to the heart rate, blood pressure monitor means for monitoring the blood pressure of said primate simultaneously with the monitoring of the heart rate and generating a second signal related to systolic blood pressure, and an apparatus operatively coupled to said EKG monitor and blood pressure monitor means to receive said first and second signals, said apparatus having microprocessor means accommodating said first and second signals and providing a current product information and time average heart rate and blood pressure product information of said first and second signals, display means associated with the microprocessor means to visually display current heart rate and blood pressure product information and to visually display time average heart rate and blood pressure product information, and alarm means operable to produce an alarm signal when the time average heart rate and blood pressure product information exceeds a selected level.

38. The structure of claim 37 wherein:

said display means includes a first display for visually presenting current heart rate and blood pressure product information and a second display for visually presenting time average heart rate and blood pressure product information.

39. The structure of claim 38 wherein:

said first display is a first digital display for visually presenting in digit form the current heart rate and blood pressure product information, and said second display is a second digital display for visually presenting in digital form time average heart rate and blood pressure product information.

40. The structure of claim 37 wherein:

said microprocessor means includes means to periodically update said time average heart rate and blood pressure product information.

41. The structure of claim 40 wherein:

said means to periodically update said time average heart rate and blood pressure product information operates about every 10 seconds to update said time average heart rate and blood pressure product information.

42. The structure of claim 37 wherein:

said microprocessor means includes means operable to provide about a two-minute average product of the time average product information.

43. The structure of claim 41 wherein:

said microprocessor means includes means to periodically update said time average heart rate and blood pressure product information.

44. The structure of claim 42 wherein:

said means to periodically update said time average heart rate and blood pressure product information operates about every 10 seconds to update said time average heart rate and blood pressure product information.

45. The structure of claim 37 wherein:

said microprocessor means includes means to preset the level of the time average heart rate and blood pressure product information at which the alarm means will operate.

46. An apparatus for monitoring and displaying heart rate and blood pressure product information used with means for monitoring the heart rate of a primate and producing a first signal relating to the heart rate, and means for monitoring the blood pressure of said primate and producing a second signal relating to the blood pressure comprising:

first means accommodating said first and second signals and providing a current heart rate and blood pressure product information and a time average heart rate and blood pressure product information, display means associated with the first means to visually display current heart rate and blood pressure product information and to visually display time average heart rate and blood pressure product information derived from said product signal, and alarm means operable to produce an alarm signal when the time average heart rate and blood pressure product information exceeds a selected level.

47. The apparatus of claim 46 wherein:

said display means includes a first display for visually presenting current heart rate and blood pressure product information, and a second display for visually presenting time average heart rate and blood pressure product information.

48. The apparatus of claim 47 wherein:

said first display is a first digital display for visually presenting in digit form the current heart rate and blood pressure product information, and said second display is a second digital display for visually presenting in digit form time average heart rate and blood pressure product information.

49. The apparatus of claim 47 wherein:

said microprocessor means includes means to periodically update said time average heart rate and blood pressure product information.

50. The apparatus of claim 49 wherein:

said means to periodically update said time average heart rate and blood pressure product information operates about every 10 seconds to update said time average heart rate and blood pressure product information.

51. The apparatus of claim 50 wherein:

said microprocessor means includes means operable to provide about a two-minute average product of the time average product information.

52. The apparatus of claim 47 wherein:

said microprocessor means includes means to periodically update said time average heart rate and blood pressure product information.

53. The apparatus of claim 52 wherein:

said means to periodically update said time average heart rate and blood pressure product information operates about every 10 seconds to update said time average heart rate and blood pressure product information.

54. The apparatus of claim 47 wherein:

said microprocessor means includes means to preset the level of the time average heart rate and blood pressure product information at which the alarm means will operate.

55. An apparatus for monitoring and displaying heart rate and blood pressure product information used with means for monitoring the heart rate of a primate and producing a first signal relating to the heart rate, and means for monitoring the blood pressure of said primate and producing a second signal relating to the blood pressure comprising:

first means accommodating said first and second signals and providing a time average heart rate and blood pressure product signal, display means associated with the first means to visually display the time average heart rate and blood pressure product information derived from said product signal, and alarm means operable to produce an alarm signal when the time average heart rate and blood pressure product information exceeds a selected level.

56. The apparatus of claim 55 wherein:

said first means is a microprocessor programmed to accommodate the first and second signals and provide a product signal relating to the product of the heart rate and blood pressure of the primate.

57. The apparatus of claim 56 wherein:

said microprocessor includes means to preset the level of the time average heart rate and blood pressure product information at which the alarm means will operate.

58. The apparatus of claim 56 wherein:

said display means includes a digital display for visually presenting the time average heart rate and blood pressure product information.

59. The structure of claim 56 wherein:

said microprocessor includes means to periodically update said time average heart rate and blood pressure product information.

60. The apparatus of claim 59 wherein:

said means to periodically update said time average heart rate and blood pressure product information operates about every 10 seconds to update said time average heart rate and blood pressure product information.

61. The apparatus of claim 56 wherein:

said microprocessor includes means operable to provide about a two-minute average product of the time average product information.

62. The apparatus of claim 55 wherein:

said display means includes a digital display for visually presenting in digit form the time average heart rate and blood pressure product information.