Minimization of ecg interference in patient monitoring systems
AssigneeDrägerwerk AG & Co. KGaA
InventorsLIXIN LIU, DEREK Y. QIN
Life of this patent
Estimating the term…
Abstract
A patient monitoring system includes a patient monitor and an ECG lead set coupled thereto. The patient monitor may be programmed to periodically issue interrogation signals to the ECG lead set to determine the type and connection status of the ECG lead set. The interrogation signals may be issued via a communication bus. The patient monitor may time the issuance of interrogation signals to the ECG lead set to correspond to non-critical ECG intervals, such that interference with the ECG signals by the communication bus is minimized.
Claims14
A method of operating a patient monitoring system, comprising:
- issuing a first initial interrogation signal from a patient monitor to identify a primary electrocardiogram (“ECG”) lead set type coupled to the patient monitor;
- selectively issuing a second initial interrogation signal from the patient monitor, depending upon the identified type of the primary ECG lead set to identify an auxiliary ECG lead set;
- and
- timing issuance of at least one subsequent interrogation signal to the primary ECG lead set to correspond to a non-critical ECG interval.
A patient monitoring system, comprising:
- a patient monitor having a processor and a user interface for displaying an electrocardiogram (“ECG”) signal;
- and
- a primary ECG lead set, coupled to the patient monitor, for providing ECG signals to the patient monitor;
- wherein:
- the patient monitor issues an initial interrogation signal to identify the type of the primary ECG lead set;
- the patient monitor times issuance of at least one subsequent interrogation signal to the ECG lead set to correspond to a non-critical ECG interval.
A non-transitory computer-readable medium, tangibly embodying instructions executable by a hardware processor to:
- issue an initial interrogation signal from a patient monitor to identify a primary electrocardiogram (“ECG”) lead set type coupled to the patient monitor;
- selectively issue an initial interrogation signal from the patient monitor, depending upon the identified type of the primary ECG lead set, to identify an auxiliary ECG lead set;
- and
- time issuance of at least one subsequent interrogation signal to the primary ECG lead set to correspond to a non-critical ECG interval.
Dependencies are inferred from the claim text.