PATIENT MONITORING SYSTEM AND METHOD

• US 20100016682A1
• Filed: 12/18/2007
• Published: 01/21/2010
• Est. Priority Date: 12/21/2006
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Vicente Antunes, Vitor M., Schluess, Rainer
• Application Number:
  US12/519,782
• Publication Number:
  US 20100016682A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/08 Detecting, measuring or recording devices for evaluating the respiratory organs A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/0809 by impedance pneumography
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/7207 of noise induced by motion artifacts
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B

Abstract

The present invention relates to a patient monitoring system (1). Further the invention relates to a method for monitoring a patient and to a computer program for a patient monitoring system (1). In order to provide a reliable technique for reducing the number of false alarms in a patient monitoring system a patient monitoring system (1) is suggested, which comprises a first sensor device (2) adapted to acquire (101) a first patient signal (10) corresponding to a first physiological parameter of the patient, a second sensor device (3, 4, 5) adapted to acquire (102, 103, 104) a second patient signal (11, 12, 13) corresponding to a second physiological parameter of the patient, said second patient signal (11, 12, 13) comprising an overlay signal (14, 15, 16) caused by the first physiological parameter of the patient, a processing device (7) adapted to determine (105) from the first patient signal (10) a first value of the first physiological parameter of the patient, to determine (106, 107, 108) from the overlay signal (14, 15, 16) of the second patient signal (11, 12, 13) a second value of the first physiological parameter of the patient, and to analyze (109) the first and second value of the first physiological parameter of the patient, and a control device (8) adapted to control (110) a patient monitor alarm system (9) depending on the result of the analysis.

Claims

1. A patient monitoring system, comprising

a first sensor device adapted to acquire a first patient signal corresponding to a first physiological parameter of the patient,

a second sensor device adapted to acquire a second patient signal corresponding to a second physiological parameter of the patient, said second patient signal comprising an overlay signal caused by the first physiological parameter of the patient,

a processing device adapted to determine from the first patient signal a first value of the first physiological parameter of the patient, to determine from the overlay signal of the second patient signal a second value of the first physiological parameter of the patient, and to analyze the first and second value of the first physiological parameter of the patient, and

a control device adapted to control a patient monitor alarm system (9) depending on the result of the analysis.

2. The system as claimed in claim 1, wherein the first physiological parameter of the patient is the patient'"'"'s respiration and the overlay signal of the second patient signal is a respiration overlay signal.

3. The system as claimed in claim 1, wherein the second physiological parameter of the patient is the patient'"'"'s invasive blood pressure.

4. The system as claimed in claim 1, wherein the second physiological parameter of the patient is the pulsation of the patient'"'"'s blood.

5. The system as claimed in claim 1, wherein the second physiological parameter of the patient is the electrical voltage in the patient'"'"'s heart.

6. A method of monitoring a patient, the method comprising the steps of

acquiring a first patient signal corresponding to a first physiological parameter of the patient,

determining from the first patient signal a first value of the first physiological parameter of the patient,

acquiring a second patient signal corresponding to a second physiological parameter of the patient, said second patient signal comprising an overlay signal caused by the first physiological parameter of the patient,

determining from the overlay signal of the second patient signal a second value of the first physiological parameter of the patient,

analyzing the first and second value of the first physiological parameter of the patient, and

controlling the release of a monitoring alarm depending on the result of the analyzing step.

7. The method as claimed in claim 6, wherein in case of the first value being critical an alarm is suppressed, if the second value is non-critical.

8. A computer program for a patient monitoring system, which is adapted to acquire a first patient signal corresponding to a first physiological parameter of the patient, and a second patient signal corresponding to a second physiological parameter of the patient, said second patient signal comprising an overlay signal caused by the first physiological parameter of the patient, the program comprising:

computer instructions to determine from the first patient signal a first value of the first physiological parameter of the patient,

computer instructions to determine from the overlay signal of the second patient signal a second value of the first physiological parameter of the patient,

computer instructions to analyze the first and second value of the first physiological parameter of the patient, and

computer instructions to control the release of a monitoring alarm depending on the result of the analysis,

when the computer program is executed in a computer.