U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of and apparatus for detecting cardiac rhythm disturbance

Patent 4784153 Issued on November 15, 1988. Estimated Expiration Date: Icon_subject November 12, 2006. 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 References

3565058

3650264

3732868

3760100

3830227

3841315

3861387

Pulsimeter
Patent #: 4120296
Issued on: 10/17/1978
Inventor: Prinz

Cardiotachometer
Patent #: 4181134
Issued on: 01/01/1980
Inventor: Mason ,   et al.

Method and apparatus for monitoring electrocardiographic waveforms
Patent #: 4181135
Issued on: 01/01/1980
Inventor: Andresen ,   et al.

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Inventor

Application

No. 06/929414 filed on 11/12/1986

US Classes:

600/514, Sound generated by successive heartbeat electric signals to represent heart action600/509, Detecting heartbeat electric signal600/515, Detecting arrhythmia600/516, Variation in duration of segment of PQRST signal waveform (e.g., QRS complex, etc.) detected600/517, Vertical variation of PQRST signal waveform (e.g., amplitude of QRS complex, etc.) detected600/521Detecting R portion of signal waveform

Examiners

Primary: Kamm, William E.
Assistant: Keegan, Timothy

Attorney, Agent or Firm

International Classes

A61B 5/0468 (20060101)
A61B 5/0452 (20060101)
G06F 17/00 (20060101)

Abstract

A method for generating audio information to indicate the presence and nature of a cardiac rhythm disturbance is disclosed. More specifically, this method produces sounds which accompany atrial and ventricular ectopic rhythms, allowing the physician to appreciate the presence of such rhythms without having to visually inspect the morphology of the electrocardiogram signal. Furthermore, the sounds differ according to the type of ectopic rhythm present. This method provides such information in real time, allowing the physician to correlate the information with the current condition of the patient. The electrocardiogram signal is analyzed by a microprocessor or microcomputer which in turn controls a tone generator to produce the audio output.

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