GB2190751A - Apparatus and method for monitoring organs of the body - Google Patents
Apparatus and method for monitoring organs of the bodyInfo
- Publication number
- GB2190751A GB2190751A GB08711445A GB8711445A GB2190751A GB 2190751 A GB2190751 A GB 2190751A GB 08711445 A GB08711445 A GB 08711445A GB 8711445 A GB8711445 A GB 8711445A GB 2190751 A GB2190751 A GB 2190751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impedance
- signals
- subject
- patient
- pairs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0535—Impedance plethysmography
Abstract
Apparatus for monitoring body functions comprises oscillator means (1) for generating a very high frequency oscillation, an oscillator driven constant current generating source (2), at least one pair of current driven electrodes (4) for attachment to the body of a patient, at least two pairs of voltage sensing electrodes (5) for attachment to the body of the patient, tuner/voltage amplifier means (6) tuned to the frequency of the generator means (1), converter means (7) for measuring impedance changes between pairs of voltage sensing electrodes (5), impedance indicator means (8), isolating circuit means (9) for receiving signals from the impedance converter (7), filter means (10) for excluding electronic or biological fluctuations from the equipment or the subject and a impedance offset control, and recorder means (11 or 12) for recording process and analysing the subject signals, the subject signals being received by the recorder means (11 or 12) as separate signals. Methods of producing a record of the function and volume of a hollow visceral organ are also described.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB848428831A GB8428831D0 (en) | 1984-11-15 | 1984-11-15 | Monitoring organs of body |
PCT/GB1985/000521 WO1986002819A1 (en) | 1984-11-15 | 1985-11-15 | Apparatus and method for monitoring organs of the body |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8711445D0 GB8711445D0 (en) | 1987-06-17 |
GB2190751A true GB2190751A (en) | 1987-11-25 |
GB2190751B GB2190751B (en) | 1988-07-13 |
Family
ID=10569750
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB848428831A Pending GB8428831D0 (en) | 1984-11-15 | 1984-11-15 | Monitoring organs of body |
GB08711445A Expired GB2190751B (en) | 1984-11-15 | 1985-11-15 | Apparatus and method for monitoring organs of the body |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB848428831A Pending GB8428831D0 (en) | 1984-11-15 | 1984-11-15 | Monitoring organs of body |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0235137A1 (en) |
JP (1) | JPS62501267A (en) |
AU (1) | AU5069685A (en) |
GB (2) | GB8428831D0 (en) |
WO (1) | WO1986002819A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2445454A (en) * | 2007-01-03 | 2008-07-09 | Gen Electric | Combined uterine activity and foetal heart rate monitoring device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0359397B1 (en) * | 1988-08-19 | 1995-05-03 | Hewlett-Packard Company | Device for detection of uterine contractions |
AU1328595A (en) * | 1994-06-20 | 1996-01-15 | Auckland Uniservices Limited | Brain damage monitor |
US6631292B1 (en) * | 2001-03-23 | 2003-10-07 | Rjl Systems, Inc. | Bio-electrical impedance analyzer |
AU2002952265A0 (en) * | 2002-10-25 | 2002-11-07 | Upfal, Jonathan | Implantable sensor |
US20090204017A1 (en) * | 2008-02-12 | 2009-08-13 | Pandit Ashit M | Uterine activity monitoring using impedance plethysmography |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US387436A (en) * | 1888-08-07 | o neil | ||
FR2294677A1 (en) * | 1973-11-09 | 1976-07-16 | Thomson Medical Telco | Cardio-pulmonary diagnostic appts using HF current - has electrodes mounted in front and rear of thorax |
US4059169A (en) * | 1976-02-09 | 1977-11-22 | Hagen Winston H | Monitor for biological volume changes |
FR2354744A1 (en) * | 1976-06-16 | 1978-01-13 | Commissariat Energie Atomique | OCCLUSION RHEOPLETHYSMOGRAPHY DEVICE |
WO1983004369A1 (en) * | 1982-06-07 | 1983-12-22 | Healthdyne, Inc. | Respiration or respiration and electrocardiographic monitor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874368A (en) * | 1973-04-19 | 1975-04-01 | Manfred Asrican | Impedance plethysmograph having blocking system |
-
1984
- 1984-11-15 GB GB848428831A patent/GB8428831D0/en active Pending
-
1985
- 1985-11-15 AU AU50696/85A patent/AU5069685A/en not_active Abandoned
- 1985-11-15 WO PCT/GB1985/000521 patent/WO1986002819A1/en not_active Application Discontinuation
- 1985-11-15 EP EP19850905646 patent/EP0235137A1/en not_active Withdrawn
- 1985-11-15 JP JP50500785A patent/JPS62501267A/en active Pending
- 1985-11-15 GB GB08711445A patent/GB2190751B/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US387436A (en) * | 1888-08-07 | o neil | ||
FR2294677A1 (en) * | 1973-11-09 | 1976-07-16 | Thomson Medical Telco | Cardio-pulmonary diagnostic appts using HF current - has electrodes mounted in front and rear of thorax |
US4059169A (en) * | 1976-02-09 | 1977-11-22 | Hagen Winston H | Monitor for biological volume changes |
FR2354744A1 (en) * | 1976-06-16 | 1978-01-13 | Commissariat Energie Atomique | OCCLUSION RHEOPLETHYSMOGRAPHY DEVICE |
WO1983004369A1 (en) * | 1982-06-07 | 1983-12-22 | Healthdyne, Inc. | Respiration or respiration and electrocardiographic monitor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2445454A (en) * | 2007-01-03 | 2008-07-09 | Gen Electric | Combined uterine activity and foetal heart rate monitoring device |
GB2445454B (en) * | 2007-01-03 | 2011-09-14 | Gen Electric | A combined uterine activity and fetal heart rate monitoring device |
Also Published As
Publication number | Publication date |
---|---|
GB8711445D0 (en) | 1987-06-17 |
WO1986002819A1 (en) | 1986-05-22 |
AU5069685A (en) | 1986-06-03 |
EP0235137A1 (en) | 1987-09-09 |
JPS62501267A (en) | 1987-05-21 |
GB8428831D0 (en) | 1984-12-27 |
GB2190751B (en) | 1988-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4602639A (en) | Method and apparatus for contactless measurement of charge concentrations and potential differences in biological organisms | |
US3534728A (en) | Physiological parameter measuring system | |
EP0383703A2 (en) | Tracking multielectrode electroglottograph and process for using it | |
EP0268366A3 (en) | Methods of and apparatus for generating low frequency electrical stimulus signals | |
GB2269458A (en) | Method and apparatus for producing electrochemical impedance spectra | |
CA2218281A1 (en) | Method and apparatus for noninvasively determining hematocrit | |
IE45794L (en) | Signal measuring device | |
US4459996A (en) | Ear pathology diagnosis apparatus and method | |
GB2190751A (en) | Apparatus and method for monitoring organs of the body | |
US4159018A (en) | Cardiac signal transmitter unit | |
Hatteland et al. | A heterodyne ultrasound blood velocity meter | |
JPS60250731A (en) | Living body communication system | |
DE3477641D1 (en) | Averaging method for elimination of periodic strays and a circuit arrangement for applying the method | |
EP0284678A1 (en) | A device and method for monitoring small displacements of a peak in a frequency spectrum | |
ATE31375T1 (en) | METHOD AND DEVICE FOR TRANSMITTING ACOUSTIC INFORMATION AS FELT VIBRATIONS. | |
US4882535A (en) | Device and method for monitoring small desplacements of a peak in a frequency spectrum | |
SU1604351A1 (en) | Method of determining disturbance of cardiac rhythm and conduction | |
JPS56135140A (en) | Abnormality diagnostic device for roller bearing | |
SU873162A1 (en) | Method of measuring electric field intensity | |
JPS55112563A (en) | Ultrasonic microscope unit | |
SU124582A1 (en) | Radio measurement method of physiological parameters | |
JPS6486939A (en) | X-ray tomographic imaging apparatus | |
SU814336A1 (en) | Device for examining man's acoustic function | |
US4142147A (en) | Method and system for testing the accuracy of an electronic clock | |
RU2107487C1 (en) | Method and device for performing electroacupuncture diagnosis procedure taking into account mechanical and electric properties of acupuncture points |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |