Method and apparatus for monitoring heart rate and abnormal respiration
November 17, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus for monitoring and storing a variety of heart activity signals Apparatus for monitoring the rhythm of a patient's heartbeat Marker channel telemetry system for a medical device Rate adaptive pacer Metabolic-demand pacemaker and method of using the same to determine minute volume Method and apparatus for precision monitoring of infants on assisted ventilation Method and apparatus for implementing histogram storage and trend analysis in a medical stimulator Telemetry gain adjustment algorithm and signal strength indication in a noisy environment Apparatus for monitoring electrical physiologic signals Method and apparatus for processing quasi-transient telemetry signals in noisy environments InventorsAssigneeApplicationNo. 09715637 filed on 11/17/2000US Classes:600/536, Detector responsive to movement induced variation in impedance of body to electric current600/547, Measuring electrical impedance or conductance of body portion607/18Plural sensed conditionsExaminersPrimary: Schaetzle, Kennedy J.Assistant: Droesch, Kristen Attorney, Agent or FirmForeign Patent References
International ClassA61N 1365AbstractAn implantable device having enhanced capabilities for monitoring a patient's heart rate and respiration trends over extended periods of time is disclosed. The information collected by the implantable device may be stored and telemetered to an associated external device such as a device programmer for display and analysis. Heart rates are measured by measuring the time intervals between sensed depolarizations of a chamber of the patient's heart and preceding sensed depolarizations or delivered pacing pulses. Intervals may be measured in the ventricle and/or atrium of the patient's heart. According to another aspect of the invention, an implanted impedance sensor is employed to monitor minute ventilation. The heart rate and minute ventilation data is used to develop long-term trend data used for diagnostic purposes. In one embodiment of the invention, heart interval and minute ventilation measurements are taken only during defined time periods of the night and/or day when the patient is at rest. A sensor such as an activity sensor or metabolic rate sensor may be used to confirm patient inactivity.Field of SearchSimultaneously detecting cardiovascular condition and diverse body conditionDetecting respiratory condition Detecting heartbeat electric signal Testing artificially regulated or assisted heart Detecting heartbeat electric signal and diverse cardiovascular characteristic Detecting signal repetition rate Respiratory Detecting body movement attending breathing Detector responsive to movement induced variation in impedance of body to electric current Measuring electrical impedance or conductance of body portion Heart rate regulating (e.g., pacing) Ventricular electrocardiographic intervals (e.g., Q-T interval) Testing or monitoring pacer function | |
