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WO1986003392A1 - Dispositif pour determiner la mobilite des parties du corps - Google Patents

Dispositif pour determiner la mobilite des parties du corps Download PDF

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Publication number
WO1986003392A1
WO1986003392A1 PCT/AT1985/000056 AT8500056W WO8603392A1 WO 1986003392 A1 WO1986003392 A1 WO 1986003392A1 AT 8500056 W AT8500056 W AT 8500056W WO 8603392 A1 WO8603392 A1 WO 8603392A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmitters
mobility
pulses
ultrasound
determining
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.)
Ceased
Application number
PCT/AT1985/000056
Other languages
German (de)
English (en)
Inventor
Meinhard Berger
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.)
Siemens AG Oesterreich
Original Assignee
Siemens AG Oesterreich
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 Siemens AG Oesterreich filed Critical Siemens AG Oesterreich
Publication of WO1986003392A1 publication Critical patent/WO1986003392A1/fr
Priority to DK367686A priority Critical patent/DK367686A/da
Priority to FI863252A priority patent/FI863252A0/fi
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/343—Circuits therefor using frequency variation or different frequencies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring 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 or mobility of a limb
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring 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 or mobility of a limb
    • A61B5/1121—Determining geometric values, e.g. centre of rotation or angular range of movement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring 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 or mobility of a limb
    • A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb using a particular sensing technique
    • A61B5/1127—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb using a particular sensing technique using markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/488—Diagnostic techniques involving Doppler signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring 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 or mobility of a limb
    • A61B5/112—Gait analysis

Definitions

  • the invention relates to a device for determining the mobility of parts of the body by measuring the position with the aid of field-generating and receiving devices which are partly fixed to the body and partly fixed in space.
  • Measurements of the human movement system are currently mainly used as excursion measurements, i.e. Measurement of the end position mobility of various joints (e.g. hips, knees etc.) carried out.
  • the end position movement is measured or determined with the aid of a measuring circle (or magnetic needle or gravity needle). This procedure is very rough, since only a few defined (standardized) end positions are noted. It is therefore not possible to record the entire end position mobility.
  • the dynamic movement in terms of quality and quantity in all possible directions of movement can currently only be achieved by very expensive, apparatus-intensive processes. consequences. These methods are therefore almost only accessible to research and are unsuitable for further dissemination, for example in the practice, hospitals, etc.
  • the current measurement methods use, for example, two or more video cameras with correspondingly complex electronic data processing or light scanner methods using rotating mirrors or other moving light (also laser light) with recording of the light signal by special cameras or reflector systems with photosensitive elements.
  • DE-OS 1 541 180 has disclosed a method and a device for postoperative monitoring of patients, the patient being exposed to a high-frequency radiation field, the changes in the radiation field caused by the patient's body movements being indicated optically or acoustically will.
  • magnetic fields are used for this purpose and Hall generators are provided as sensors.
  • the invention has set itself the task of accurately detecting the spatial movement of parts of the body and achieves this by determining the position of a measurement of the coordinates of one or more body areas marked by ultrasound receivers or transmitters with the aid of pulse-running time measurements between further assigned ones , spatially arranged ultrasonic transmitters or receivers is provided, with a temporal and / or frequency staggering of the individual transit time measurements serving to avoid mutual interference.
  • the drawing shows the basic structure of the devices and the basic circuit diagram of a device for measuring the position of body parts, which is particularly suitable for determining the mobility of these body parts.
  • a microphone 1 with a spherical characteristic is attached, which advantageously consists of a bundle of individual microphones oriented in different directions.
  • the arrangement shown permits the detection of all movement components by the interaction of three spatially arranged ultrasound transmitters (transmitters) 2, 3 and 4 radiating in different directions of the room with the microphone 1, in such a way that the ultrasound transmitters 2, 3 and 4 Send out short ultrasonic pulses, the transit times of which are measured on the way from the respective ultrasonic transmitter to the microphone 1, after which the distances of these paths are calculated from these time measurements.
  • the circuit used to generate the ultrasonic pulses and to evaluate the received pulses is delimited by dashed lines.
  • a microprocessor 5, which is controlled by a clock generator 6, is used to control all of these processes. From the clock frequency of the clock generator 6, the ultrasonic frequencies required for the operation of the ultrasonic transmitters 2, 3 and 4 are obtained with the aid of frequency dividers 7, 8 and 9. In order to avoid mutual interference of the ultrasound signals by echoes or resonances, these frequencies are in prime numbers to one another. The. Alternating voltages with the frequencies obtained in this way are fed to the signal inputs of three switching amplifiers 10, 11 and 12, which are only switched through briefly to emit pulses (wave packets). These connections are carried out as a function of a control carried out by the microprocessor 5 and in such a way that the switching amplifiers 10, 11 and 12 actuate the ultrasonic transmitters 2, 3 and 4 in cyclical order.
  • the sound pulses emitted by the ultrasound transmitters 2, 3 and 4 are received by the microphone 1 with the corresponding delay delays.
  • the electrical signals obtained therefrom by the microphone 1 are amplified broadband by means of an amplifier 13 and fed to three narrowband frequency filters 14, 15 and 16.
  • Connected to the outputs of the frequency filters 14, 15 and 16 are three pulse shaping elements 17, 18 and 19, respectively, which feed the pulses received by the individual ultrasound transmitters 2, 3 and 4 separately to the microprocessor 1, each of which compares individual of the received pulses with its associated triggering pulse with regard to its transit time.
  • the distance values resulting from the transit times are also calculated by the microprocessor 1 and fed to a computer or an output unit 20.
  • the patient lies on the back.
  • the transmitter with a fan-shaped arrangement of 3 ultrasound transmitters is fastened over the kneecap of the bent knee and the knee or thigh is moved in a circular arc in the maximum excursion (flexion, abduction, adduction, extension).
  • the position of the femoral head can be calculated by means of coordinate transformation and the excursion of the knee can be entered on a pie chart (similar to visual field determination).
  • the patient lies on the back.
  • the ultrasound transmitter is attached to the knee, the extended leg is maximally adducted and abducted to determine the degree of admission or abduction.
  • the patient lies on the back.
  • the hip is bent 90 degrees, one transmission system is attached over the kneecap, the second over the ankle. From this position (knees and hips bent 90 degrees) the internal and external rotation is measured and shown in a corresponding diagram.
  • the degree of maximum flexion and extension can be determined in the seated patient.
  • the rotation could be measured by attaching a transmitter system in the forefoot area. 5.
  • the ultrasound transmitter By attaching the ultrasound transmitter to the teeth of the lower jaw (for example by means of plastillin or tooth clamp), the biting, speaking or arbitrary movements of the lower jaw can be measured with the head fixed.
  • a further optimization of the measurement result can be achieved by using two ultrasound transmitters on the front and outside of the lower jaw (approx. 3rd and 4th tooth on both sides).
  • an individual system can be attached to each foot (e.g. via an archilles tendon), which means that the gait sequence can be recorded precisely in terms of quality and quantity over a longer walking distance (corridor).
  • the device according to the invention is characterized in that only a receiver system that is easy to install in the room is necessary and that the sensor or sensors can be easily attached to the corresponding parts of the body.
  • the peculiarity of the entire system lies in the fact that an automatic standardized evaluation and graphical representation of the respective measurement results can take place by means of special user programs for data processing, so that the examining doctor only has to enter the type of examination (for example hip), the sensor on The knee is fastened and the measurement result is automatically evaluated, for example with additional information, such as the length of the thigh, etc.
  • an analysis of the speed of movement, deceleration or acceleration during the movement can take place . Movements can be started with the aid of acoustic signals, which makes it possible, for example, to measure the delay (in the case of diseases of the central nervous system, muscle diseases, etc.).
  • specific questions such as spasticity, rigor
  • Shaking (tremor) of outstretched hands can be determined exactly.
  • the measuring system should be designed in such a way that the "measuring window" is set accordingly, i.e. the sensitivity range e.g. from 3 cm to 10 m is available.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Physiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Geometry (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

Afin de déterminer la mobilité de parties du corps, leur position est mesurée à l'aide d'émetteurs (1) et de récepteurs (2, 3, 4) d'ultrasons, disposés en partie sur le corps et en partie fixes dans l'espace dans les différents axes de coordonnées, sur la base de la mesure du temps de parcours des impulsions. Afin d'éviter des perturbations des mesures du temps de parcours individuelles entre elles, celles-ci sont réalisées successivement, par exemple de telle manière que les impulsions de tous les émetteurs d'ultrasons soient décalées réciproquement dans le temps de façon cyclique. Les effets d'interférence et de résonance sont évités par le fait que les rapports des fréquences des impulsions fournies par les émetteurs d'ultrasons forment une suite de nombres premiers.
PCT/AT1985/000056 1984-12-11 1985-12-10 Dispositif pour determiner la mobilite des parties du corps Ceased WO1986003392A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK367686A DK367686A (da) 1984-12-11 1986-08-01 Indretning til bestemmelse af legemsdeles bevaegelighed
FI863252A FI863252A0 (fi) 1984-12-11 1986-08-08 Anordning foer bestaemning av roerligheten hos kroppsdelar.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA3919/84 1984-12-11
AT0391984A AT384544B (de) 1984-12-11 1984-12-11 Verfahren zur bestimmung der beweglichkeit von koerperteilen

Publications (1)

Publication Number Publication Date
WO1986003392A1 true WO1986003392A1 (fr) 1986-06-19

Family

ID=3557221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1985/000056 Ceased WO1986003392A1 (fr) 1984-12-11 1985-12-10 Dispositif pour determiner la mobilite des parties du corps

Country Status (4)

Country Link
EP (1) EP0204772A1 (fr)
AT (1) AT384544B (fr)
FI (1) FI863252A0 (fr)
WO (1) WO1986003392A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006949A1 (fr) * 1985-06-01 1986-12-04 Beecham Group P.L.C. Appareil de controle de balancement
EP0567898A1 (fr) * 1992-05-01 1993-11-03 Jürgen Dr. Manthey Méthode de mesure de la posture et du mouvement du corps
AU2004272023B2 (en) * 2003-09-08 2008-06-26 Board Of Trustees Of The University Of Arkansas Ultrasound apparatus and method for augmented clot lysis

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823958A (en) * 1990-11-26 1998-10-20 Truppe; Michael System and method for displaying a structural data image in real-time correlation with moveable body
EP0488987B1 (fr) * 1990-11-26 1996-01-31 Michael Dr. Truppe Méthode de représentation de corps mobiles
AT399272B (de) * 1990-11-26 1995-04-25 Truppe Michael Anordnung zur darstellung eines schädels
AT399273B (de) * 1990-11-26 1995-04-25 Truppe Michael Anordnung zur dreidimensionalen erfassung von gelenksbewegungen
DE4119150A1 (de) * 1991-06-11 1992-12-17 Brunner Wolfgang Messanordnung fuer die ganganalyse
DE102012202990A1 (de) 2012-02-28 2013-08-29 Sportmed Ag Vorrichtung und Verfahren zum Vermessen und Befunden von Körperteil- und Extremitätenbeweglichkeiten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3606879A (en) * 1968-06-17 1971-09-21 Electro Medical Systems Inc Monitoring the physiological phenomena of childbirth with ultrasound
FR2198641A5 (fr) * 1972-08-28 1974-03-29 Akad Tekn Videnskaber
US3924450A (en) * 1973-05-10 1975-12-09 Hitachi Shipbuilding Eng Co Device for measuring three dimensional coordinates of models
US4197856A (en) * 1978-04-10 1980-04-15 Northrop Robert B Ultrasonic respiration/convulsion monitoring apparatus and method for its use

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1541180A1 (de) * 1966-10-27 1970-02-19 Transform Roentgen Matern Veb Verfahren und Einrichtung zur postoperativen UEberwachung
DE2648282A1 (de) * 1976-10-25 1978-04-27 Siemens Ag Holographische einrichtung
DE2715106C2 (de) * 1977-04-04 1982-05-27 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Messung des Ortes, der Lage und/oder der Orts- bzw. Lageänderung eines starren Körpers im Raum
JPS5468091A (en) * 1977-11-10 1979-05-31 Kouji Tamura Device for measuring motion of living organ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3606879A (en) * 1968-06-17 1971-09-21 Electro Medical Systems Inc Monitoring the physiological phenomena of childbirth with ultrasound
FR2198641A5 (fr) * 1972-08-28 1974-03-29 Akad Tekn Videnskaber
US3924450A (en) * 1973-05-10 1975-12-09 Hitachi Shipbuilding Eng Co Device for measuring three dimensional coordinates of models
US4197856A (en) * 1978-04-10 1980-04-15 Northrop Robert B Ultrasonic respiration/convulsion monitoring apparatus and method for its use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006949A1 (fr) * 1985-06-01 1986-12-04 Beecham Group P.L.C. Appareil de controle de balancement
EP0567898A1 (fr) * 1992-05-01 1993-11-03 Jürgen Dr. Manthey Méthode de mesure de la posture et du mouvement du corps
DE4214523A1 (de) * 1992-05-01 1993-11-11 Juergen Dr Manthey Verfahren zur Stimulierung der Körperhaltung
AU2004272023B2 (en) * 2003-09-08 2008-06-26 Board Of Trustees Of The University Of Arkansas Ultrasound apparatus and method for augmented clot lysis

Also Published As

Publication number Publication date
FI863252A7 (fi) 1986-08-08
AT384544B (de) 1987-11-25
EP0204772A1 (fr) 1986-12-17
ATA391984A (de) 1987-05-15
FI863252A0 (fi) 1986-08-08

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