METHOD AND DEVICE FOR THE NON-INVASIVE MEASUREMENT OF DYNAMIC CARDIOPULMONARY INTERACTION PARAMETERS

• US 20100324428A1
• Filed: 02/13/2009
• Published: 12/23/2010
• Est. Priority Date: 02/13/2008
• Status: Abandoned Application

• Current Assignee: Up-Med GmbH (Koninklijke Philips N.V.)
• Original Assignee: Up-Med GmbH (Koninklijke Philips N.V.)
• Inventors: Pfeiffer, Ulrich
• Application Number:
  US12/866,600
• Publication Number:
  US 20100324428A1
• Time in Patent Office: Days
• US Class Current: 600/490
• CPC Class Codes: A61B 5/02141 Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits A61B5/02233, A61B5/0235 take precedence
• CPC Class Codes: A61B 5/02233 Occluders specially adapted therefor tourniquets A61B17/132
• CPC Class Codes: A61B 5/085 Measuring impedance of respiratory organs or lung elasticity

Abstract

A method for a non-invasive determination of cardiopulmonary interaction parameters in a patient includes fitting a pressure cuff on the patient, setting a volume of the pressure cuff in a pulsatile range of the patient, measuring pulsatile signals over time, and evaluating the measured pulsatile signals so as to ascertain the cardiopulmonary interaction parameters.

Claims

1-10. -10. (canceled)

11. A method for a non-invasive determination of cardiopulmonary interaction parameters in a patient comprising:

fitting a pressure cuff on the patient;

setting a volume of the pressure cuff in a pulsatile range of the patient;

measuring pulsatile signals over time; and

evaluating the measured pulsatile signals so as to ascertain the cardiopulmonary interaction parameters.

12. The method as recited in claim 11, wherein the cardiopulmonary interaction parameters include at least one of a stroke volume variation, a pulse pressure variation and a pre-ejection phase variation.

13. The method as recited in claim 11, wherein the measuring is performed over at least one breathing cycle of the patient,

14. The method as recited in claim 11, wherein the measuring is performed over at least three breathing cycles of the patient.

15. The method as recited in claim 11, further comprising ascertaining a respirator variation range of the cardiopulmonary interaction parameters.

16. The method as recited in claim 11, wherein the measuring is performed while keeping the volume of the pressure cuff constant.

17. The method as recited in claim 11, wherein the setting of the volume includes setting the volume between a volume for ascertaining a systolic blood pressure of the patient and a volume for ascertaining the diastolic blood pressure of the patient.

18. The method as recited in claim 17, further comprising deriving a value for performing a pulse contour method from the pulsatile signals.

19. A device for a non-invasive determination of cardiopulmonary interaction parameters in a patient comprising:

a pressure cuff configured to measure a cuff pressure in a pulsative range of the patient over at least one breathing cycle of the patient; and

a control device configured to detect a measured cuff pressure value and to evaluate a measured pulsatile signal so as to ascertain the cardiopulmonary interaction parameters.

20. The device as recited in claim 19, further comprising an output device configured to output the cardiopulmonary interaction parameters.

21. The device as recited in claim 20, further comprising a volume-regulating device configured to regulate a volume in the pressure cuff.