EP0999875A1 - Dispositif de magnetotherapie - Google Patents

Dispositif de magnetotherapie

Info

Publication number
EP0999875A1
EP0999875A1 EP98935221A EP98935221A EP0999875A1 EP 0999875 A1 EP0999875 A1 EP 0999875A1 EP 98935221 A EP98935221 A EP 98935221A EP 98935221 A EP98935221 A EP 98935221A EP 0999875 A1 EP0999875 A1 EP 0999875A1
Authority
EP
European Patent Office
Prior art keywords
transducer
magnetic field
magneto
subject
therapy
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.)
Withdrawn
Application number
EP98935221A
Other languages
German (de)
English (en)
Inventor
Gabriele Agabiti
Dario Corsi
Michele Ponsele'
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.)
Baldi Holding SA
Original Assignee
Baldi Holding SA
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 Baldi Holding SA filed Critical Baldi Holding SA
Publication of EP0999875A1 publication Critical patent/EP0999875A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N2/00—Magnetotherapy
    • A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets

Definitions

  • the present invention relates to a device for magneto-therapy which presents important innovative characteristics with respect to those currently in use and extends their field of employment.
  • Electromagnetic fields influence, among other things, cell membrane permeability, cell enzyme activity, calcium mobility and its velocity of migration through the membrane itself.
  • the role of calcium in the transmission of intracellular signals, such as muscle contraction and relaxation, is scientifically recognised.
  • Electromagnetic waves have been used as a non invasive tool to promote healing of bone fractures, obtaining significant successes and scientific recognition. Numerous studies confirm the influence of electromagnetic fields on calcium movement and on the piezoelectric organisation of bone structures, as well as their favourable action in the organisation of the cytoskeleton of the bone callus (calcification acceleration action). Electromagnetic fields also influence circadian wake and sleep rhythms.
  • the devices for magneto-therapy currently in use generate magnetic fields with fixed frequencies, selectable manually. Since the optimal frequency of the field depends on the subject, on the type of treatment to be performed and on the earth's magnetic field, which varies from place to place, the experiments that are conducted do not have universal validity. It is therefore necessary to proceed by trial and error on a case by case basis, wasting a great amount of time, to attain the desired results.
  • the object of the present invention is to allow effective magneto- therapy treatments of various kinds, without having each time to seek by trial and error the optimal conditions of adjustment for the device.
  • Other aims are to perform an extremely localised action on a preselected point and to allow treatment on persons during their physical activity.
  • the transducer that produces the magnetic field is fed pulses whose frequency is cyclically variable, from a minimum to a maximum, such as to delimit a range of values which is sure to include the optimal ones for any subject, wherever he or she may be located.
  • the transducer further comprises an inductor with ferrite core, or the like, or reduced size, which generates an extremely focused field and thus can be applied exactly onto the pre-selected point, even to physically active persons.
  • FIG. 1 shows a block diagram of the device.
  • reference number 1 indicates a ramp generator, number 2 a voltage-controlled oscillator (VCO), number 3 a pulse generator circuit, number 4 a power amplifier and number 5 a transducer, which, fed by the amplified pulses, produces a pulsing magnetic field of suitable intensity.
  • Reference numbers 6 and 7 indicate respectively a rechargeable battery and the related charging circuitry.
  • the ramp generator 1 can in practice comprise the V_. integrated circuit IC1 shown at the top left in Table 2, 3456 type or equivalent.
  • the pulse generator circuit 3 comprises, in the example in Fig. 2, the remaining part of integrated circuit IC1, shown at the bottom left.
  • the voltage-controlled oscillator or VCO 2 is obtained with the integrated circuit IC2, 4046 type or equivalent.
  • the power amplifier 4 comprises the transistor TR1, BC337 type or equivalent.
  • the transducer 5 is represented by inductor LI.
  • the device At start-up, the device generates pulses of pre-set width, typically 60 microseconds, with repetition frequency that depends on the VCO 2 and on the ramp generator 1 connected thereto.
  • the minimum pulse repetition frequency specified is 3 Hz
  • the maximum frequency is 65 Hz.
  • variable frequency pulses thus generated are amplified by the power amplifier 4, that drives the magnetic transducer 5, which comprises a small coil of reduced size, with core made of ferrite, or the like.
  • the amplitude of the amplified pulses and the characteristics of the transducer are such as to produce a magnetic field of appropriate intensity.
  • Some components of the device can be adjustable, to allow device calibration.
  • circuit configurations different from the one shown could be adopted: for instance, the electronic circuit could be variously integrated and even programmable.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

La présente invention concerne un dispositif de magnétothérapie qui, contrairement à ceux s'utilisant actuellement, ne nécessite aucun réglage par rapport à son lieu d'utilisation et au sujet à traiter. Le dispositif selon l'invention est également capable d'effectuer une action bien localisée sur un point sélectionné du corps et peut être utilisé par des personnes physiquement actifs. A cette fin, le transducteur produisant le champ magnétique reçoit des impulsions dont la fréquence varie cycliquement d'une valeur minimale à une valeur maximale, de manière à délimiter une gamme comprenant les valeurs optimales pour chaque sujet, quel que soit l'emplacement. Le transducteur comprend un inducteur à coeur en ferrite ou matière similaire, de taille extrêmement réduite.
EP98935221A 1997-07-30 1998-07-27 Dispositif de magnetotherapie Withdrawn EP0999875A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT97PS000022A IT1295994B1 (it) 1997-07-30 1997-07-30 Dispositivo per magneto-terapia
ITPS970022 1997-07-30
PCT/IB1998/001153 WO1999006109A1 (fr) 1997-07-30 1998-07-27 Dispositif de magnetotherapie

Publications (1)

Publication Number Publication Date
EP0999875A1 true EP0999875A1 (fr) 2000-05-17

Family

ID=11396782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98935221A Withdrawn EP0999875A1 (fr) 1997-07-30 1998-07-27 Dispositif de magnetotherapie

Country Status (4)

Country Link
EP (1) EP0999875A1 (fr)
AU (1) AU8456798A (fr)
IT (1) IT1295994B1 (fr)
WO (1) WO1999006109A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133131A1 (de) * 1981-08-21 1983-03-03 Bangert, Wolfgang, 7405 Dettenhausen Anordnung zur magnetfeldtherapie der menschlichen haut
DE3605148A1 (de) * 1986-02-18 1987-08-20 Vmei Lenin Nis Vorrichtung fuer die magnetische therapie
US4994016A (en) * 1989-04-14 1991-02-19 John Atwood Electronic stimulating device
EP0500983B1 (fr) * 1991-02-28 1995-07-26 Medi-Line Gmbh Dispositif d'irradiation pour le traitement de tissu vivant par des ondes électromagnétiques
GB9402545D0 (en) * 1994-02-10 1994-04-06 Magstim Co Ltd Magnetic stimulators
GB2304287A (en) * 1995-08-18 1997-03-19 Malcolm Cummings Magnetotherapy apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9906109A1 *

Also Published As

Publication number Publication date
IT1295994B1 (it) 1999-06-03
ITPS970022A1 (it) 1999-01-30
AU8456798A (en) 1999-02-22
ITPS970022A0 (it) 1997-07-30
WO1999006109A1 (fr) 1999-02-11

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