Surgery – Diagnostic testing – Detecting muscle electrical signal
Patent
1997-04-25
1998-07-07
Hinderburg, Max
Surgery
Diagnostic testing
Detecting muscle electrical signal
600591, A61B 504
Patent
active
057760730
ABSTRACT:
A method and apparatus is presented for recording uterine electrical activity from the surface of the abdomen or vagina for the purpose of diagnosing contractile patterns of the uterus or abdominal muscles in pregnant and nonpregnant patients. The present invention provides data analysis techniques for analyzing electromyographic data measured from the surface of a patient to characterize uterine activity. The method and apparatus described include algorithms for the systematic analysis of electrical signals recorded from the abdominal surface. Such processing comprises integration of signals, frequency spectral analysis, 3-dimensional power density mesh plots, vector analysis, fast wavelet transform, and joint time-frequency characteristics. These techniques and apparatus are appropriate for use in a clinic or through communication lines for use as a remote or home uterine monitoring system. As such, uterine electrical activity may be measured at a remote location and processed at a central facility through on-line communications channels, such as a telephone line. The techniques and apparatus disclosed are also useful in predicting successful treatment for cases where either the uterus fails to develop forceful contractions at term or begins to contract pre-term.
REFERENCES:
patent: 4256118 (1981-03-01), Nagel
patent: 4396019 (1983-08-01), Perry, Jr.
patent: 4967761 (1990-11-01), Nathanielsz
patent: 5154177 (1992-10-01), Eisman et al.
patent: 5301680 (1994-04-01), Rosenberg
patent: 5373852 (1994-12-01), Harrison et al.
patent: 5397344 (1995-03-01), Garfield et al.
Margue, et al., "Uterine EHG Processing for Obstetrical Monitoring, " IEEE Transactions on Biomedical Engineering, BME-33(12):1182-1186, Dec. 1986.
Pajntar, et al., "Electromyography of the Human Uterus," IEEE Engineering in Medicine and Biology Society 10.sup.th Annual International Conference, New Orleans, Louisiana, vol. 10, Nov. 1988.
Tepavac, et al., "A Portable 8 Channel Surface EMG Recording System," Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 14:1433-1434, Oct.-Nov. 1992.
Devedeux, et al., "Uterine Electromyography: A Critical Review," Am. J. Obstet. Gynecol. 169:1636-1653, 1993.
Wolfs, et al., "Electromyographic observations on the Human Uterus during Labour," Acta Obstet. Gynecol. Scand. (Suppl. ) 90:1-62, 1979.
Garfield et al., "Control of Myometrial Contractility: Role and Regulation of Gap Junctions," Oxford Rev. Reprod. Biol. 10:436-490, 1988.
Dill, et al., "The Electrical Potentials of the Human Uterus in Labor, " Am. J. Obstet. Gynecol. 52-735-745, 1946.
Steer, "The Electrical Activity of the Human Uterus in Normal and Adnormal Labor," Am. J. Obstet. Gynecol. 68:867-890, 1954.
Halliday, et al. "Uterine Activity and Electrical Response," J. Obstet. Gynaec. Brit. Emp. 62:155-161, 1955.
Hon, et al., "Cutaneous and Uterine Electrical Potentials in Labor--an Experiment," Obstet. Gynec. 12 47-53, 1958.
Csapo, et al., Chapter 43, "Force of Labor," Principles and Practices of Obstetrics and Perinatology, Ed. L. Iffy, et al., Pub. John Wiley and Sons, 761-799, 1981.
Marshall, "Regulation of Activity in Uterine Smooth Muscle," Physiol. Rev. 42:213:227, 19625.
Garfield, Chapter 3, "Role of Cell-to-Cell Coupling in Control of Myometrial Contractility and Labor," Control of Uterine Contractility, Ed. R.E. Garfield, et al., CRC Press, 39-81, 1994.
Cody, "The Fast Wavelet Transform," Dr. Dobb's Journal, Apr. 1992.
Cody, "A Wavelet Analyzer," Dr. Dobb's Journal, Apr. 1993.
Cody, "The Wavelet Packet Transform," Dr. Dobb's Journal, Apr. 1994.
Phillipe, "Mechanisms Underlying Phasic Contractions of Pregnant Ray Myometrium Stimulated with Aluminum Fluoride," Am. J. Obstet. Gynecol. 173:981-990, Apr. 1994.
Garfield, "Mechanism Underlying Phasic Contraction of Pregnant Rat Myometrium Simulated By Aluminum Floride," Am. J. Obstet. Gynecol. 173:348-349, Jul. 1995.
Linzer, et al., "Incremental Diagonstic Yield of Loop Electrocardiographic Recorders in Unexplained Syncope," Am. J. Cardio. 66:214-219, Jul. 1990.
Trenkwalder, et al., "Usefulness of Simultaneous Ambulatory Electrocardiographic and Blood Pressure Monitoring in Detecting Myocardial Ischemia in Patients > 70 Years of Age with Systemic Hypertension, " Am. J. Cardio. 72:927-931, Oct. 1993.
Nagey, et al., "Randomized Comparison of Home Uterine Activity Monitoring and Routine Care in Patients Discharged After Treatment for Preterm Labor," Obstet, & Gynecol. 82:329-323, Sep. 1993.
"Home Uterine Activity Monitoring for Preterm Labor," J. Am. Med. Assoc. 270:369-376, Jul. 1993.
Survival Technology Inc., "The Cardio Beeper III," 1988.
Meditronic Cardiocare, "Arrhythmias Don't Keep Regular Hours, " 6 pgs., Jan. 1991.
Micro-Med, Inc., "Digi-Med Heart Performance Analyzer," 4 pgs., Jun. 1993.
Marquette Electronics, Inc., Mac Vu A Complete Electrocardiographic System, 12 pgs. 1992.
Marquette Electronics, Inc., "Mac 8 Resting ECG Analysis System, " 2pgs., 1993.
Marquette Electronics, Inc., "Cardiology Products," 18 pgs., 1992.
Boyle Mary B.
Garfield Robert E.
Board of Regents University of Texas System
Hinderburg Max
LandOfFree
Method and apparatus for analyzing uterine electrical activity f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for analyzing uterine electrical activity f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for analyzing uterine electrical activity f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1199946