MEDICAL SYSTEM, APPARATUS AND METHOD

• US 20130204099A1
• Filed: 03/15/2013
• Published: 08/08/2013
• Est. Priority Date: 11/13/2007
• Status: Abandoned Application

• Current Assignee: Oridion Medical 1987 Limited (Medtronic Plc)
• Original Assignee: Oridion Medical 1987 Limited (Medtronic Plc)
• Inventors: Lain, David, Auer, John E., Colman, Joshua Lewis
• Application Number:
  US13/831,721
• Publication Number:
  US 20130204099A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/0833 Measuring rate of oxygen consumption
• CPC Class Codes: A61B 5/0836 Measuring rate of CO2 production
• CPC Class Codes: A61B 5/091 Measuring volume of inspired or expired gases, e.g. to determine lung capacity
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/369 Electroencephalography [EEG] devices for psychotechnics A61B5/16
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 8/0883 for diagnosis of the heart

Abstract

According to some embodiments, there is provided a medical monitoring device that includes one or more sensors, wherein a sensor is adapted to sense a parameter of a patient and computator adapted to receive an output of at least one sensor and to compute a condition-index-value directly related to a condition of the patient.

Claims

1. A method for computing a single unit less index-value indicative of a respiratory status a patient, the method comprising:

continuously sensing at least two parameters of a patient, using two or more sensors, wherein said two or more sensors comprise at least a capnograph and a pulse oximeter; and

continuously computing a single unit-less index-value based on an integration of at least two output parameters received at least from the capnograph and the pulse oximeter, wherein a change in the single unit-less index-value is indicative of a change in the respiratory status of the patient.

2. The method of claim 1, wherein the at least two parameters of a patient comprise a respiratory related parameter, pulmonary related parameter, cardiac related parameter and or any combination thereof.

3. The method of claim 1, wherein the at least two parameters of a patient comprise respiration rate, EtCO2, SpO₂, heart rate, or any combination thereof.

4. The method of claim 1, wherein the two or more sensors further comprises a heart rate monitor, blood pressure monitor, Electrocardiography (ECG), Electroencephalography (EEG) or any combination thereof.

5. The method of claim 1, wherein the single unit-less index-value is in the range of 1 to 10.

6. The method of claim 1, wherein the single unit-less index-value is in the range of 1 to 100.

7. The method of claim 1, wherein an increase in the single unit-less index-value is indicative of an improvement in a patient'"'"'s condition.

8. The method of claim 1, wherein a decrease in the single unit-less index-value is indicative of an improvement in a patient'"'"'s condition.

9. The method of claim 1, wherein a decrease in the single unit-less index-value is indicative of a deterioration of a patient'"'"'s condition.

10. The method of claim 1, wherein an increase in the single unit-less index-value is indicative of a deterioration of a patient'"'"'s condition.

11. The method of claim 1, wherein the single unit-less index-value is computed according to an average of the at least two output parameters.

12. The method of claim 1, wherein computing the single unit-less index-value is comprises mathematical operation of a medical significance level of each of the at least two output parameters.

13. The method of claim 12, wherein the mathematical operation comprises multiplication.

14. The method of claim 1, wherein the medical significance level of each of the at least two output parameters is determined by correlating the output value of each of the at least two output parameters with that of a normal level.

15. The method of claim 1, further comprising computing a trend of said single unit-less index-value.

16. The method of claim 1, further comprising computing a reliability index of said single unit-less index-value.

17. The method of claim 1, further comprising providing a pause frequency parameter.

18. The method of claim 1, further comprising providing a medical recommendation.

19. The method of claim 18, wherein said medical recommendation is determined according to the single unit-less index-value.

20. The method of claim 18, wherein said medical recommendation is determined according to the single unit-less index-value and a parameter related to a CO₂ waveform.

21. The method of claim 1 further comprising a user interface.

22. The method of claim 1 further comprising graphically displaying the single unit-less index-value on a graphic display.

23. The method of claim 1 further comprising graphically displaying a trend of the single unit-less index-value.

24. The method of claim 1, further comprising providing indications correlating to a status of the patient.

25. The method of claim 24, wherein the status comprises hyperventilation, hypoventilation or both.

26. The method of claim 1, wherein the change in the single unit-less index-value is displayed as up and down arrows indicating hyperventilation and hypoventilation respectively.

27. The method of claim 1, further comprising graphically displaying a sub-range to which the single unit-less index-value is assigned, wherein the sub-range correlates to a level of normality of the respiratory status and/or to whether medical intervention is required.

28. The method of claim 27, wherein the sub-range is displayed with a different graphical sign according to the level of normality of the respiratory status and/or to whether medical intervention is required.

29. The method of claim 1, further comprising correlating the at least two output parameters to a set of predefined conditions.

30. A medical system comprising:

a monitoring device comprising two or more sensors adapted to sense at least two parameters of a patient, wherein said two or more sensors comprise at least a capnograph and a pulse oximeter;

a computator adapted to continuously receive at least two output parameters at least from said capnograph and said pulse oximeter and to compute a single unit-less index-value based on integration of said at least two output parameters; and

a sampling unit adapted to sample breath from a patient.

31. The medical system of claim 30, wherein said sampling unit comprises an oral nasal cannula.

32. The medical system of claim 30, wherein said at least two parameters of a patient comprises a respiratory related parameter, pulmonary related parameter, cardiac related parameter or any combination thereof.

33. The medical system of claim 30, wherein said at least two parameters of a patient comprises respiration rate, EtCO2, SpO₂, heart rate, or any combination thereof.

34. The medical system of claim 30, wherein said two or more sensors comprise a heart rate monitor, blood pressure monitor, Electrocardiography (ECG), Electroencephalography (EEG) or any combination thereof.