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WO2018164563A1 - Dispositif portatif de diathermie par radiofréquence pour traitement médical dans la réhabilitation de lésions - Google Patents

Dispositif portatif de diathermie par radiofréquence pour traitement médical dans la réhabilitation de lésions Download PDF

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Publication number
WO2018164563A1
WO2018164563A1 PCT/MX2017/000030 MX2017000030W WO2018164563A1 WO 2018164563 A1 WO2018164563 A1 WO 2018164563A1 MX 2017000030 W MX2017000030 W MX 2017000030W WO 2018164563 A1 WO2018164563 A1 WO 2018164563A1
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WO
WIPO (PCT)
Prior art keywords
voltage
medical therapy
chip
signal
portable
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/MX2017/000030
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English (en)
Spanish (es)
Inventor
Antonio Rafael CORRES MATAMOROS
Esteban MARTÍNEZ GUERRERO
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.)
Instituto Tecnologico Y De Estudios Superiores De Occidente AC
Original Assignee
Instituto Tecnologico Y De Estudios Superiores De Occidente AC
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 Instituto Tecnologico Y De Estudios Superiores De Occidente AC filed Critical Instituto Tecnologico Y De Estudios Superiores De Occidente AC
Publication of WO2018164563A1 publication Critical patent/WO2018164563A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes

Definitions

  • the present invention relates to the equipment and devices used to apply therapy in body parts for the treatment of muscle and ligament injuries. More specifically, it refers to a portable radiofrequency diathermy device for medical therapy in rehabilitation of muscle and ligament injuries.
  • Diathermy can be defined as a physiotherapeutic method of heat production that is applied localized in the tissues or ligaments injured by the passage through them of a high frequency oscillating current, avoiding electrical sensitivity and nervous and muscular excitations. It contributes to the relaxation of the muscles and relieves the sensation of pain.
  • the diathermy, therapeutic used in rehabilitation uses electromagnetic fields of a frequency of 0.5 to 27.12 MHz with a power of a few hundred watts.
  • Radiofrequency or Tecarrick diathermy equipment non-portable and high output power from 80 to 400 W for physical rehabilitation. They produce an alternating electric current with voltages ranging between 50 and 400 Vpp "peak to peak voltage" and currents from .005 to 1 A. They are applied to the skin in the area of the patient that is injured by means of 2 metal electrodes (Active and reference).
  • commercial equipment is not portable, therefore, they need to be connected to the electric current and generate large output powers (80 to 400 Watts), so they need to be operated by a specialist.
  • US patent application US20160136462A1 by Lewis Jr. et al. of June 24, 2014 which discloses a portable ultrasonic device (100) consisting of a power controller (170) wired connected to at least one applicator (110) comprising a housing (160) where a sensor is integrated, of temperature (120), coupling detectors (125) and inferiorly comprises a coupling bandage (130) that perimetrically includes an interlocking lip (140) and centrally a hydrogel tank (135) [see fig. one].
  • the power controller (170) with DC output includes a power source, such as a battery.
  • the power controller (170) provides user control of the device and delivers electrical power to the applicator (s) (110) with a controlled, stable amplitude, for a defined period of time.
  • the applicator (110) with the integrated RF control electronics, controllers of at least one transducer, in order to transmit ultrasound through a lens.
  • This applicator is positioned to deliver ultrasound to a site of the user's body and a coupling bandage 130 is used both to lubricate the surface on which the ultrasound is administered, and to fix the applicator (110) to the treatment site in the body. of the carrier.
  • the applicator (110) is connected to the coupling bandage (130) in the interlocking / engaging lip (140) of the housing (160) of the applicator (110).
  • the applicator lens (110) When coupled to the coupling bandage 130, the applicator lens (110) in contact with a hydrogel reservoir in the coupling bandage (130). Therefore, the applicator (110) administers ultrasound through this hydrogel tank (135) in the bandage (130). This coupling prevents the surface of the ultrasound face radiating from the applicator (110) from coming into contact with the skin of the user (eg, patient) receiving ultrasound.
  • the applicator provides closed loop diathermy control by monitoring the heating, current, and output energy and is adjusted accordingly for the user of the device. All electronics and control of the output of Ultrasound are in the applicator itself and it only receives CD power from the power controller.
  • Said patent application accordingly is a portable ultrasound equipment, which generates heat by means of mechanical vibration provided by the movement of piezoelectric crystals.
  • an RF radiofrequency diathermy coil assembly that includes a patient's garment which defines a step for receiving a part of the body therein and a primary coil that includes a number of turns arranged around the passage.
  • the primary coil can be connected to a power source and incorporated into the patient's clothing.
  • the primary coil is sensitive to the RF energy supplied by the power source cable for the establishment of an RF radio frequency field.
  • a secondary coil is provided that includes a number of windings arranged around the passage. The secondary coil is arranged near the primary coil and is incorporated into the patient's garment.
  • a tuner is coupled to the secondary coil to fine tune the RF field at a resonant frequency of the body part disposed within the passage.
  • said patent application reveals an apparatus that stimulates the body with an electro-magnetic field by means of antennas placed in different parts of the body. Also drives a low frequency (55Hz) muscle electro-stimulator (separately).
  • said patent reveals an RF diathermy device that stimulates body tissues by means of an electromagnetic field since it uses as an applicator coils used as antennas to transmit said field. It is not portable and works at a frequency of 27 MHz.
  • a portable radiofrequency diathermy device for medical therapy in injury rehabilitation such as that of the present invention, which includes a chip which together with a rechargeable battery (5V 2600 mAh) and a pair of electrodes to generate the appropriate signal to provide patients with diathermy therapy of radiofrequency; where the chip comprises four modules, the external part of which has the rechargeable battery that will feed the entire equipment, LEDs indicating the battery charge and where the output has two cables connected to two metal electrodes that will be responsible for deliver the "RFD" radio frequency diathermy signal to the patient.
  • the four modules that make up the chip are based on the transistor-level design of the two oscillators of the chip for radiofrequency diathermy (RFD) consisting of a low frequency oscillator (LFO) and a voltage controlled oscillator (VCO) with output frequency sweep in the range of 500 KHz to 1 and MHz, repeating this sweep every second; a flash type A / D converter and an AMP amplifier module (for its acronym in English) to convert the signal from the VCO into a signal with an amplitude of 150 Vpp "peak to peak voltage" and a maximum output current of 50 mA ; wherein said LFO, VCO and AMP modules are implemented with said chip.
  • RTD radiofrequency diathermy
  • LFO low frequency oscillator
  • VCO voltage controlled oscillator
  • the present invention has as its main objective to make available a novel device for application of radiofrequency diathermy for medical therapy in rehabilitation of injuries that is completely portable and allows to provide patients with a radiofrequency diathermy therapy that achieves healing in all types of lesions of Muscle and ligament.
  • Another objective of the invention is to provide a novel portable radiofrequency diathermy device for medical therapy in injury rehabilitation, which is also rechargeable, low power consumption and low power output and that can be used by any patient in the comfort of your home.
  • Another objective of the invention is to provide a novel portable radiofrequency diathermy device for medical therapy in injury rehabilitation, which also allows to generate a field Alternate pulsatile electromagnetic that, in contact with the water molecules of the tissues, polarizes and repolarizes the molecules, increasing the patient's body heat, generating greater vascularization, producing a faster and more efficient healing of the injured area.
  • Another objective of the invention is to provide a novel portable radiofrequency diathermy device for medical therapy in injury rehabilitation, which is also simple, practical and functional and avoids physical risks for the patient.
  • the portable radiofrequency diathermy device for medical therapy in injury rehabilitation in accordance with the present invention, consists of a chip which together with a rechargeable battery (5V 2600 mAh) and a pair of electrodes generates the appropriate signal to provide patients with radiofrequency diathermy therapy, which will achieve healing in all types of muscle and ligament injuries.
  • the device has a frequency sweep of the output signal of 0.5 to 1 MHz, a maximum amplitude of 150 Vpp, an output current of 50 mA and a maximum current consumption of 100mA. Having the ability to work continuously for 24 hours. No need to recharge the battery.
  • the device allows attacking any type of muscle and ligament injury, and can be placed by the same patient for long periods (8 to 72 Hrs.) In order to give treatment during the first hours of the lesion continuously and constantly. To achieve these levels of autonomy and efficiency in the equipment, a chip that integrates almost entirely the electronic functions of the product is necessary.
  • said chip comprises, in its external part, the rechargeable battery that will power all the equipment, LEDs indicating the battery charge and the output that will have two cables connected to two metal electrodes that will be responsible for deliver the RFD radiofrequency diathermy signal to the patient.
  • This chip is based on the design at the level of two oscillator transistors for radiofrequency diathermy (RFD) consisting of a low frequency oscillator (LFO), a voltage controlled oscillator (VCO) with output frequency sweep in the 500 KHz to 1 MHz range, repeating this sweep every second, an amplifier (AMP) to convert the signal from the VCO into a signal with an amplitude of 150 Vpp and a maximum output current of 50 mA, and an A / A converter D type flash that converts the voltage coming from the battery (2) into a three-level digital thermometer type code and allows sensing the charge levels of the battery and will indicate them by means of the LEOs (preferably three) connected to three outputs of the chip, by means of code type thermometer, lighting only the LED corresponding to the level of sensed charge, and also comprising said chip.
  • RTD radiofrequency diathermy
  • LFO low frequency oscillator
  • VCO voltage controlled oscillator
  • AMP amplifier
  • a / A converter D type flash that converts
  • Figure 1 shows a block diagram of the chip of the portable radiofrequency diathermy device for medical therapy in injury rehabilitation, which integrates four modules, an external rechargeable battery that will power the entire device, LEDs indicating the charge of the battery and the output where two cables connected to two metal electrodes are connected, which will be responsible for delivering the RFD radio frequency diathermy signal to the patient.
  • Figure 2 illustrates a top view of the portable radiofrequency diathermy device for medical therapy in injury rehabilitation, in one of the embodiments of the invention.
  • Figure 3 shows a schematic diagram of the electrode arrangement of the portable radiofrequency diathermy device for medical therapy in injury rehabilitation, on an upper limb
  • Figure 4 illustrates the electrical diagram of the low frequency oscillator responsible for generating the low frequency ramp signal to control the output frequency of the voltage controlled oscillator (VCO).
  • VCO voltage controlled oscillator
  • FIG. 5 shows the electrical diagram of the voltage controlled oscillator (VCO) responsible for generating the signal with frequency of Radio Frequency Diathermy (RFD).
  • VCO voltage controlled oscillator
  • RFID Radio Frequency Diathermy
  • Figure 6 shows the electrical diagram of the flash type A / D converter (8) that converts the voltage from the battery (2) into a three-level digital thermometer type code
  • FIG 7 shows the electrical diagram of the signal amplifier (AMP) from the voltage controlled oscillator (VCO) to generate the 150 Vpp signal necessary for the production of radiofrequency diathermy (RFD).
  • AMP signal amplifier
  • VCO voltage controlled oscillator
  • the portable radiofrequency diathermy device for medical therapy in injury rehabilitation consists of a chip (1) which together with an external rechargeable battery (2) (5V 2600 mAh) and a pair of metal electrodes (3, 4, see fig. 2) connected to the output of said chip (1) generate the appropriate signal to provide patients with radiofrequency diathermy therapy, which will achieve healing in all types of muscle injuries and of ligaments.
  • Said chip (1) comprises four modules, its external part having said rechargeable battery (2) that will power the entire device; said four modules are based on the transistor-level design of two oscillators of the chip (1) for radiofrequency diathermy (RFD) consisting of a low frequency oscillator (5) (LFO) connected to a voltage controlled oscillator (6) (VCO) with output frequency sweep in the range of 500 KHz to 1.0 MHz, repeating this sweep every second; the latter being connected an amplifier module (7) (AMP), which allows amplifying the signal from the voltage controlled oscillator (6) in a signal with an amplitude of 150 Vpp and a maximum output current 50 mA, necessary for the production of radiofrequency diathermy (RFO).
  • RFD radiofrequency diathermy
  • Said amplifier module (7) is connected to the output of the chip (1).
  • a coil or inductor is also connected to the positive of the rechargeable battery (2) in order to complement the amplification of the AMP circuit (7).
  • a cable (10, see fig. 2) with metallic electrode (3) for therapy is connected and the other cable (11, see fig. 2) with metallic electrode (4) is connected to ground or Negative rechargeable battery (2).
  • Said AMP amplifier module (7) is connected to a coil and the other end thereof, to the positive of said rechargeable battery (2) and one of the cables (10, 11) with a metal electrode (3, 4) that goes to the patient.
  • These two metal electrodes (3, 4, see fig. 2) will be responsible for delivering the radiofrequency diathermy (RFD) signal to the patient.
  • RFID radiofrequency diathermy
  • the device has a frequency sweep of the signal from 0.5 to 1.0 MHz output, a maximum amplitude of 150 Vpp "peak to peak voltage", a maximum output current of 50 mA and a maximum current consumption of 100mA. Having the ability to work continuously for 24 hours. without recharging the battery, which allows them to attack any type of muscle and ligament injury, and that have the ability to be placed by the same patient for long periods (8 to 72 Hrs. At home) in order to give treatment during the first hours of the lesion continuously and constantly.
  • Figure 3 shows a schematic diagram of the arrangement of the electrodes (3, 4) of the portable radiofrequency diathermy device for medical therapy in injury rehabilitation, in a patient's hand (12).
  • the electrical diagram of the low frequency oscillator (5) comprises an arrangement of a plurality of inverters (13) associated with delay transistors (14) connected in parallel, among which capacitors are arranged. delay (15) and with a common source amplifier (16) arranged at the end that will deliver a voltage (Vo_LFO); said low frequency oscillator circuit (5) (LFO) is powered by an input with a direct polarization voltage (Vf_LFO) responsible for calibrating the oscillation frequency of the circuit and is powered by 5V from the rechargeable battery (2) and comprising a thread of earth.
  • Vf_LFO direct polarization voltage
  • Said low frequency oscillator (5) (LFO) is responsible for generating a ramp signal of 1 Hz frequency and voltage levels of 0 to 5 V. This signal will be in charge of controlling the oscillation frequency of the voltage controlled oscillator circuit VCO (6, see figure 5).
  • FIG. 5 shows the electrical diagram of the voltage controlled oscillator (6) (VCO) comprising an arrangement of a plurality of inverters (17), preferably in number of five, connected in parallel, between which delay capacitors are arranged (18), in the same number of inverters (17) and finally defining a buffer (19) that will deliver a voltage (Vo_VCO); said voltage controller oscillator circuit (6) (VCO) is fed with the voltage (Vo_LFO) generated by the low frequency oscillator (5) (LFO) and comprising a ground wire.
  • VCO voltage controlled oscillator
  • VCO voltage controlled oscillator
  • the flash type A / D converter (8) that converts the voltage from the battery (2) into a three-level digital thermometer type code and that is connected to the rechargeable battery (2) using resistors reference (R0, R 1, R2) and that integrates an array of transconductance amplifiers (20) with charge capacitors (21) that supply voltage to the charge indicator LEDs (9):
  • Said flash type A / D converter (8) that converts the voltage from the battery (2) into a digital code
  • Three-level thermometer type allows the battery charge levels to be sensed and will be indicated by three charge indicator LEDs (9) by means of a thermometer type code, only turning on the LED corresponding to the sensed charge level, said LEDs being charge indicators (9) connected to three outputs of the chip
  • Figure 7 shows the electrical diagram of the AMP amplifier module (7) that will amplify the signal from the voltage controlled oscillator (6) (VCO) through positive applied voltage (Vcc) and negative (Vss) applied to generate the 150 Vpp signal (peak to peak voltage) required for the production of the radio frequency diathermy (RFD) signal.
  • VCO voltage controlled oscillator
  • Vcc positive applied voltage
  • Vss negative
  • the invention has been described sufficiently that a person with average knowledge in the field can reproduce and obtain the results mentioned in the present invention.
  • any skilled person in the field of the art that is in charge of the present invention may be able to make modifications not described in the present application, however, if for the application of these modifications in a given structure or in the manufacturing process thereof, the matter claimed in the following claims is required, said structures must be included within the scope of the invention.

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  • 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)
  • Electrotherapy Devices (AREA)

Abstract

L'invention concerne un dispositif portatif de diathermie par radiofréquence pour traitement médical dans la réhabilitation de lésions, caractérisé en ce qu'il comprend une puce alimentée par une batterie rechargeable externe, et présentant une conception de niveau transistor consistant en la mise en oeuvre d'un oscillateur basse fréquence qui produit un signal de type rampe de 1 Hz de fréquence et des niveaux de tension de 0 à 5 V, connectée à un oscillateur commandé par tension pour produire un balayage de fréquence de sortie par seconde de 0 à 1 MHz, ce dernier étant connecté à un amplificateur permettant d'amplifier le signal provenant de l'oscillateur commandé par tension en un signal d'amplitude de 150 Vpp, avec un courant de sortie maximum de 50 mA et une consommation maximale de courant de 100 mA, nécessaires pour la production d'une diathermie par radiofréquence pour application à des lésions du corps d'un patient par l'intermédiaire de deux électrodes métalliques connectées à la sortie dudit amplificateur.
PCT/MX2017/000030 2017-03-09 2017-03-13 Dispositif portatif de diathermie par radiofréquence pour traitement médical dans la réhabilitation de lésions Ceased WO2018164563A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2017003153A MX380925B (es) 2017-03-09 2017-03-09 Dispositivo portátil de diatermia por radiofrecuencia para terapia médica en rehabilitación de lesiones
MXMX/A/2017/003153 2017-03-09

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WO2018164563A1 true WO2018164563A1 (fr) 2018-09-13

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PCT/MX2017/000030 Ceased WO2018164563A1 (fr) 2017-03-09 2017-03-13 Dispositif portatif de diathermie par radiofréquence pour traitement médical dans la réhabilitation de lésions

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WO (1) WO2018164563A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944302A (en) * 1985-07-08 1990-07-31 Indiba, S.A. Electronic device for cosmetic and medical therapy
WO2001051122A1 (fr) * 2000-01-07 2001-07-19 Biowave Corporation Procedes et dispositifs d'electrotherapie
US20050187591A1 (en) * 2000-01-07 2005-08-25 Biowave Corporation Electro therapy method and apparatus
US20120259395A1 (en) * 2009-11-30 2012-10-11 Ralf Scherer Device for electrotherapeutic treatment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944302A (en) * 1985-07-08 1990-07-31 Indiba, S.A. Electronic device for cosmetic and medical therapy
WO2001051122A1 (fr) * 2000-01-07 2001-07-19 Biowave Corporation Procedes et dispositifs d'electrotherapie
US20050187591A1 (en) * 2000-01-07 2005-08-25 Biowave Corporation Electro therapy method and apparatus
US20120259395A1 (en) * 2009-11-30 2012-10-11 Ralf Scherer Device for electrotherapeutic treatment

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Publication number Publication date
MX2017003153A (es) 2018-09-10
MX380925B (es) 2025-03-12

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