Patient ECG recording control for an automatic implantable defibrillator
Patent 4625730 Issued on December 2, 1986. Estimated Expiration Date: 
April 9, 2005. 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.
April 9, 2005. 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 ReferencesArrhythmia recorder for use with an implantable defibrillator Heartbeat monitoring process and device Recorder with patient alarm and service request systems suitable for use with automatic implantable defibrillator Implantable heart stimulator and stimulation method Synchronous clock stopper for microprocessor Patent #: 4545030 InventorsAssigneeApplicationNo. 06/721464 filed on 04/09/1985US Classes:607/4, Combined cardioverting/defibrillating and pacing128/903, RADIO TELEMETRY607/27, Testing or monitoring pacer function607/30, Remotely changing, (e.g., programming, pacer) parameters or operation607/32Communicating with pacer (e.g., telemetry)ExaminersPrimary: Kamm, William E.Attorney, Agent or FirmInternational ClassesG06F 17/00 (20060101)A61N 1/39 (20060101) AbstractAn implantable automatic defibrillator includes sensors which are placed on or near the patient's heart to detect electrical signals indicative of the physiology of the heart. The signals are digitally converted and stored into a FIFO region of a RAM by operation of a direct memory access (DMA) controller. The DMA controller operates transparently with respect to the microprocessor which is part of the defibrillator. The implantable defibrillator includes a telemetry communications circuit for sending data outbound from the defibrillator to an external device (either a patient controller or a physician's console or other) and a receiver for sensing at least an externally generated patient ECG recording command signal. The patient recording command signal is generated by the hand held patient controller. Upon detection of the patient ECG recording command, DMA copies the contents of the FIFO into a specific region of the RAM.Other References
Field of SearchRADIO TELEMETRY | |
