GB1378754A - Patient monitoring - Google Patents

Patient monitoring

Info

Publication number
GB1378754A
GB1378754A GB4172071*[A GB4172071A GB1378754A GB 1378754 A GB1378754 A GB 1378754A GB 4172071 A GB4172071 A GB 4172071A GB 1378754 A GB1378754 A GB 1378754A
Authority
GB
United Kingdom
Prior art keywords
capacitor
patient
transmitter
lamps
movements
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.)
Expired
Application number
GB4172071*[A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PEAK TECHNOLOGIES Ltd
Original Assignee
PEAK TECHNOLOGIES Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PEAK TECHNOLOGIES Ltd filed Critical PEAK TECHNOLOGIES Ltd
Priority to GB4172071*[A priority Critical patent/GB1378754A/en
Priority to DE2205411A priority patent/DE2205411A1/en
Priority to US00225934A priority patent/US3796208A/en
Priority to FR7213199A priority patent/FR2141047A5/fr
Publication of GB1378754A publication Critical patent/GB1378754A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • 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 
    • A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  using microwaves or terahertz waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Dentistry (AREA)
  • Physiology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

1378754 Electro-medical apparatus PEAK TECHNOLOGIES Ltd 14 Dec 1971 [7 Sept 1971] 41720/71 Heading G1N Movements of a patient, e.g. movements of the chest wall due to respiration, are monitored using a micro-wave field enveloping at least part of the patient and sensing variations in the field, an alarm being given when the degree of movement has fallen beneath a predetermined threshold value for more than a pre-selected interval of time. As described a micro-wave transmitter is used to provide the field, and a receiver is provided to sense the Doppler frequency shift due to movement of the patient. As shown, the components included within the dashed/dotted line in Fig.5a are mounted on one printed circuit board, and those in Fig.5b on another printed circuit board. A receiver diode D1 is provided and the frequency shift is represented by a cyclically varying voltage at the output of an amplifier A1, which voltage is applied to a capacitor C7. As the patient breathes the voltage across capacitor C7 passes above and below a threshold value of a transistor VT2 which operates a relay RL 1. The contacts of this relay then make and break a clamp circuit causing a pair of lamps to blink on and off at the respiration rate. The pulses produced are applied to a selected one of three capacitors C 2 , C 3 , C 4 in an alarm circuit, Fig.6. Should breathing cease causing the relay contacts to be permanently closed and the lamps to be permanently energized, the selected capacitor is allowed to discharge and after a delay (10, 20 or 30 secs. depending on the capacitor), a noise generator is energized. A recorder may be connected across one of the lamps or to the output of amplifier A1. In an alternative, only a micro-wave transmitter is provided, and load impedance variations at the transmitter due to movements are monitored by an auxiliary oscillator. The transmitter, receiver and associated circuitry may be mounted on a scanner which is pivotally mounted on a wall, Figs. 1 and 2 (not shown), or which is mounted on a free-standing support, Figs.3 and 4 (not shown). The alarm circuitry may be arranged at a remote location. (For Figures see next page)
GB4172071*[A 1971-09-07 1971-09-07 Patient monitoring Expired GB1378754A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4172071*[A GB1378754A (en) 1971-09-07 1971-09-07 Patient monitoring
DE2205411A DE2205411A1 (en) 1971-09-07 1972-02-05 DEVICE FOR MONITORING MOVEMENTS
US00225934A US3796208A (en) 1971-09-07 1972-02-14 Movement monitoring apparatus
FR7213199A FR2141047A5 (en) 1971-09-07 1972-04-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4172071*[A GB1378754A (en) 1971-09-07 1971-09-07 Patient monitoring

Publications (1)

Publication Number Publication Date
GB1378754A true GB1378754A (en) 1974-12-27

Family

ID=10421054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4172071*[A Expired GB1378754A (en) 1971-09-07 1971-09-07 Patient monitoring

Country Status (4)

Country Link
US (1) US3796208A (en)
DE (1) DE2205411A1 (en)
FR (1) FR2141047A5 (en)
GB (1) GB1378754A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227322B (en) * 1988-11-22 1993-03-10 N H Eastwood & Son Limited Respiration sensor and monitor
CN114452012A (en) * 2022-04-12 2022-05-10 浙江伽奈维医疗科技有限公司 Puncture operation respiration amplitude detection device and method thereof

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US4619270A (en) * 1984-04-16 1986-10-28 Margolis Frederick J Infant respiratory arrest stimulator device
FR2623388A1 (en) * 1987-11-23 1989-05-26 Bertin & Cie METHOD AND DEVICE FOR MONITORING THE BREATHING OF AN INDIVIDUAL
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US7849545B2 (en) * 2006-11-14 2010-12-14 Hill-Rom Industries Sa Control system for hospital bed mattress
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US8721554B2 (en) 2007-07-12 2014-05-13 University Of Florida Research Foundation, Inc. Random body movement cancellation for non-contact vital sign detection
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US20100152600A1 (en) * 2008-04-03 2010-06-17 Kai Sensors, Inc. Non-contact physiologic motion sensors and methods for use
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227322B (en) * 1988-11-22 1993-03-10 N H Eastwood & Son Limited Respiration sensor and monitor
CN114452012A (en) * 2022-04-12 2022-05-10 浙江伽奈维医疗科技有限公司 Puncture operation respiration amplitude detection device and method thereof
CN114452012B (en) * 2022-04-12 2022-07-08 浙江伽奈维医疗科技有限公司 Puncture operation breathing amplitude detection device and method thereof

Also Published As

Publication number Publication date
FR2141047A5 (en) 1973-01-19
DE2205411A1 (en) 1973-03-15
US3796208A (en) 1974-03-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee