CN117357786A - Device for non-invasive electrical stimulation of body tissue - Google Patents
Device for non-invasive electrical stimulation of body tissue Download PDFInfo
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- CN117357786A CN117357786A CN202310821749.1A CN202310821749A CN117357786A CN 117357786 A CN117357786 A CN 117357786A CN 202310821749 A CN202310821749 A CN 202310821749A CN 117357786 A CN117357786 A CN 117357786A
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- invasive electrical
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- 230000000638 stimulation Effects 0.000 title claims abstract description 23
- 230000010355 oscillation Effects 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 17
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000010931 gold Substances 0.000 claims description 11
- 239000011701 zinc Substances 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 description 12
- 210000003491 skin Anatomy 0.000 description 12
- 210000001519 tissue Anatomy 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 9
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- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000001827 electrotherapy Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
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- 238000000554 physical therapy Methods 0.000 description 2
- 201000004384 Alopecia Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 230000003370 grooming effect Effects 0.000 description 1
- 230000003779 hair growth Effects 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
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- 238000002078 massotherapy Methods 0.000 description 1
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- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
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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
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
-
- 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
- A61N1/20—Applying electric currents by contact electrodes continuous direct currents
- A61N1/26—Electromedical brushes; Electromedical massage devices ; Combs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating
-
- 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
- A61N1/20—Applying electric currents by contact electrodes continuous direct currents
- A61N1/30—Apparatus for iontophoresis, i.e. transfer of media in ionic state by an electromotoric force into the body, or cataphoresis
- A61N1/303—Constructional details
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)
- Heart & Thoracic Surgery (AREA)
- Neurology (AREA)
- Electrotherapy Devices (AREA)
Abstract
The present invention relates to a device for non-invasive electrical stimulation of body tissue. A device for non-invasive electrical stimulation of body tissue comprises a negative and a positive part connected to a direct current circuit and a unit located therebetween for breaking the circuit. The negative and positive electrode members are made of materials having different electronegativity, forming a galvanic couple. The opening unit is made in the form of a mechanical circuit breaker provided with a body and an inertial oscillation element configured to periodically open and close the circuit under the effect of an external force. The body of the mechanical circuit breaker is made hollow and the inertial oscillation element is located inside the body. If the mechanical circuit breaker is powered, the body includes conductive members connected by a dielectric. If the mechanical circuit breaker is gravity or rotary, the body includes conductive contact pads alternating with dielectric inserts.
Description
Technical Field
The present invention relates to devices for meeting living needs, and more particularly to electrical stimulation devices. It can be used for manufacturing various consumer products such as personal products (toothbrushes, combs, massagers, shavers, plasters, tights, chains worn against the skin, etc.) or cutlery (wineglasses, spoons, forks, chopsticks, etc.).
Background
Metals with different electrochemical potentials (e.g., gold and zinc) are capable of forming a galvanic couple that produces the voltage (EMF) of the electrochemical system in the result of the electrochemical reaction that forms the potential (V.N.Varypaev, M.A.Dasoyan, V.A.Nikolskiy "chemical current source" -m.: higher school, 1990).
Devices and methods are known in the prior art (RU 2686427, classification No. a61N 1/26, a61M 5/46, a61M37/00, published 25, 2019, 4) which promote hair growth and/or prevent hair loss by rolling and puncturing the skin on the scalp not more than the dermis thickness and by depositing metal ions in the skin. The device includes a housing connected to a source of electrical current by a handle, and a plurality of parallel disks configured to roll over the scalp. The discs are covered with and/or made of metal (copper and/or zinc). Each disc comprises an array of stimulation elements (needles) located around the circumference of the disc. Each penetration of scalp skin involves the deposition of metal ions in the skin for at least 0.01 seconds and at most 0.1 seconds. According to some embodiments of this solution, the stimulating comprises providing an alternating current for alternately depositing copper ions and zinc ions under the skin, wherein a waveform of the alternating current is selected according to a desired ratio of deposited copper ions and zinc ions.
This known solution has the following drawbacks: it requires an external current source to generate current in the circuit and set the appropriate current waveform and pattern; the device does not utilize the electrophoretic effect of being able to provide more efficient penetration of non-invasive therapeutic and/or nutritional agents into body tissue.
Furthermore, devices and methods for physical therapy are known from the prior art (RU 2215555, class No. a61N1/30, published 11/10 2003) relating to the medical field. They can be used to acquire metal ions and treat biological objects with these metal ions (including iontophoresis), without the need to apply an external electric field. The device consists of two shorting electrodes made of different metals or metal compounds, which are chemically inert to the electrolyte. Water and secretions of the skin or mucous membranes are used as electrolytes. There is a contact potential difference between the electrodes. Upon contact with the electrolyte, ions are released from the electrode. The iontophoresis procedure involves applying the device to the skin or mucosa of a patient to create a reaction force between similar charges, which produces directional movement of ions.
The drawbacks of this solution are as follows: the device cannot set the waveform and mode of the current in the circuit; furthermore, the device does not take advantage of the electrophoretic effect that would provide more efficient penetration of non-invasive therapeutic and/or nutritional agents into body tissue.
Furthermore, iontophoretic patches are known from the prior art (published under WO9727899A1, class No. A61N1/30, A61N1/32, month 7/31 2003). This solution aims to provide an electrotherapy effect, for example iontophoretic delivery of drugs in the current operating frequency range of 0.0027-10 Hz.
The disadvantage of this solution is that: iontophoresis patches require an external current source to perform electrophoresis and set the shape and pattern of the current.
A comb intended for massage and electrotherapy is known from the prior art (WO 9704731A2, classification No. A61H7/00, A61N1/32, A61N2/06, published month 2/13 1997). It comprises a main body provided with a conductive massage element and a handle forming a galvanic couple. In one embodiment of the device, the massage element itself may form a galvanic couple in structure. The apparatus may comprise an ac power source and means for changing the shape and mode of operation of the signal. In a particular case, the device may comprise an electrical switch arranged between the current source and the surface of the electrode and configured to bring the conductive massage elements into short-circuit contact.
The drawbacks of this solution are as follows: the device cannot operate in a pulsed mode; the device does not utilize the electrophoretic effect of being able to provide more efficient penetration of non-invasive therapeutic and/or nutritional agents into body tissue.
Regarding the technical essence, the closest prior art to the present invention is a toothbrush (RU 2183439, published under categories a61C 17/16, a61N 1/20, a46B 9/04, month 6/20, 2002) comprising a negative (cathode) component and a positive (anode) component connected to form a direct current circuit, and a unit for breaking the circuit located between the components and made in the form of a relay. The negative and positive parts are conductive elements and the circuit to which they are connected is equipped with a direct current power supply. The first conductive element is electrically connected to the positive pole of the current source and is located on the handle, and the second element is electrically connected to the negative pole of the current source and is located in the bristle field. The toothbrush may be equipped with a current limiter and LED indicator light in series with the negative pole of the current source. Preferably, the microbattery is used as a power source for the electronic circuitry.
The disadvantage of the known solution is that: the circuit breaker (relay) is configured to switch the operation mode from operating with an external current source to operating in a short circuit mode, but is not designed to perform a pulse mode. Therefore, the interruption of the direct current can only be performed at the moment of switching the modes. Furthermore, the fact that the operation of such known devices requires a separate power supply (battery) makes the design and manufacture of the device sufficiently complex and also limits its working cycle without maintenance.
Disclosure of Invention
The technical problem underlying the present invention is therefore to overcome the above-mentioned drawbacks and to create a device capable of operating in pulsed DC mode without an additional current source.
The technical effect is to expand the functionality of the device.
The problem is solved and the technical result achieved by providing an electro-stimulation device as claimed comprising a negative part and a positive part connected to a direct current circuit and a unit located between them for breaking the circuit, wherein the negative part and the positive part are made of materials having different electronegativity, forming a galvanic couple, and the breaking unit is made in the form of a mechanical circuit breaker provided with a body and an inertial oscillation element configured to periodically break and close the circuit under the effect of external forces during operation of the device.
Preferably, the device is configured to interrupt the circuit at a frequency of 0.5-20Hz, and the galvanic couple is configured to generate an EMF of 0.4-2.8V in the circuit.
The negative electrode component of the device may be made of gold, platinum, silver, graphite or palladium, while the positive electrode component is made of zinc, magnesium, lithium or alloys thereof. The device may be made in the form of a dielectric blank on which the negative and positive electrode parts are arranged in the form of a metal coating.
The body of the mechanical circuit breaker may be made hollow and comprise a first conductive part and a second conductive part connected by a dielectric, and the inertial oscillation element may be located inside the body. The first conductive part of the body of the mechanical circuit breaker is connected to the negative part of the device and the second conductive part of the body of the mechanical circuit breaker is connected to the positive part of the device.
Preferably, the inertial oscillation element comprises a fixation element, a contact element and a rod connecting these elements, the fixation element, the contact element and the rod connecting these elements being electrically conductive, wherein the fixation element is connected to the first electrically conductive part of the body and the rod and the contact element are configured to bring the contact element and the second electrically conductive part of the body into periodic contact with each other during oscillation under an external force.
In one version of the inertial oscillation element, the fixing element and the contact element are made in the form of conical spirals having different maximum diameters, their apices being connected to the rod. In another version, the fixation element is made in the form of a cylindrical spiral and the contact element is made in the form of an extension of the rod curled into a spiral or loop.
A mechanical circuit breaker with a fixing element in the form of an extension of the rod and a contact element in the form of a load weight can also be implemented, wherein a collar is arranged on the inner wall of the second conductive part of the body, on which collar a soft and elastic additional contact element is mounted, which element is configured to oscillate under the effect of external forces during operation of the device and which is electrically isolated from the inertia oscillating element in the absence of said forces. The additional contact element may be made in the form of a cylindrical spiral and a dielectric insert may be located between the stem and the additional contact element.
The construction of the device also includes other variants of inertial oscillation elements.
For example, the body of the mechanical circuit breaker may be made in the form of a hollow cylinder inside which is arranged an inertial oscillation element in the form of a conductive ball, the diameter of the ball being smaller than the inner diameter of the cylinder and equal to the height of the cylinder cavity, wherein conductive contact pads are arranged in a central portion of the inner wall of the cylinder, the conductive contact pads being separated by a dielectric insert and being alternately connected to the negative and positive parts of the device.
According to another embodiment, the body of the mechanical circuit breaker is made in the form of a hollow outer cylinder, the inertial oscillation element is made in the form of an inner cylinder with coaxial rotation capability inside the outer cylinder, wherein the conductive contact pads are located on the inner wall of the outer cylinder and on the outer wall of the inner cylinder, said pads alternating with the dielectric inserts.
Drawings
Fig. 1 shows an overall view of the claimed electrostimulation device made in the form of a toothbrush;
fig. 2 shows an overall view of the claimed electrostimulation device made in the form of a comb;
fig. 3 shows an overall view of the claimed electrostimulation device made in the form of a roller massager;
fig. 4 shows an overall view of the claimed electrostimulation device made in the form of a stick massager;
fig. 5 shows an overall view of the claimed electrostimulation device made in the form of a shaver;
fig. 6 shows an overall view of the claimed electrostimulation device made in the form of a plaster;
FIG. 7 shows an overall view of the claimed electrostimulation device made in the form of a wine glass;
fig. 8 shows an overall view of the claimed electrostimulation device made in the form of a spoon;
fig. 9 shows a pair of electro-stimulation devices in the form of chopsticks;
FIG. 10 is a diagram illustrating user interaction with the claimed electro-stimulation device;
fig. 11 shows a power-type mechanical circuit breaker equipped with a fixing element and a contact element made in the form of a conical spiral;
fig. 12 shows a power mechanical circuit breaker equipped with a fixing element made in the form of a cylindrical screw and a contact element made in the form of an extension of a rod curled into a screw or ring;
fig. 13 shows a power mechanical circuit breaker equipped with a fixing element in the form of an extension of the lever and a contact element in the form of a load weight;
fig. 14 is a plan view of a gravity type mechanical breaker;
fig. 15 is a side view of a gravity type mechanical breaker;
fig. 16 shows a rotary mechanical circuit breaker;
fig. 17 is a graph showing the rate of penetration (1/t) of a non-invasive therapeutic and/or nutritional agent into body tissue as a function of the frequency of dc circuit interruption.
Detailed Description
The claimed electro-stimulation device (fig. 1-9) is formed from a dielectric blank 1 having a negative electrode part 2 and a positive electrode part 3. The components 2 and 3 are connected into a DC circuit, made of materials (e.g. gold and zinc) with different electronegativity (i.e. with different electrochemical potentials), and constitute a galvanic couple that generates a voltage in the circuit (i.e. the voltage (EMF) of the electrochemical system). The amount of this voltage is 0.4V to 2.8V and it occurs due to the electrochemical reaction that forms the potential.
The following half-reaction corresponds to the electrical contact "gold (Au) -zinc (Zn)":
red (Au): o (O) 2 +2H 2 O+4e - →4OHˉ，E°＝+0.401V，
Ox(Zn)：Zn+4OHˉ-2e - →ZnO 2 2- +2H 2 O，E°＝-1.216V，
Wherein E DEG- -standard electrode potential of half reaction,
the amount of EMF is 1.616V.
The following half reaction corresponds to the electrical contact "gold (Au) -magnesium (Mg)":
red (Au): o (O) 2 +2H 2 O+4e - →4OHˉ，E°＝+0.401V，
Ox(Mg)：Mg-2e - →Mg 2+ ，E°＝-2.363V，
Wherein the amount of EMF is 2.763V.
An opening unit in the form of a mechanical circuit breaker 4 is arranged between the parts 2 and 3 for periodically opening and closing the electric circuit under the action of an external mechanical force during operation of the device at a frequency of 0.5-20 Hz. During operation of the device, the negative electrode part 2 and the positive electrode part 3 are connected to each other on one side by means of a mechanical breaker 4 and on the other side by means of a living biological object (user tissue) (fig. 10).
The device can be made either in the form of a dielectric blank 1 with a negative electrode part 2 and a positive electrode part 3 coated thereon in the form of a metal coating or entirely of materials with different electronegativity (different electrochemical potential). The negative electrode component of the device may be made of gold, platinum, silver, graphite or palladium, while the positive electrode component may be made of zinc, magnesium, lithium or alloys thereof.
In a power-type version (fig. 11-13), the mechanical circuit breaker 4 of the claimed device comprises a body 5 and a inertial oscillation element 9. The body 5 of the mechanical circuit breaker 4 is hollow and comprises a first conductive part 6 and a second conductive part 7 connected by a dielectric 8. The inertial oscillation element 9 is located inside the main body 5. The first conductive part 6 is connected to the negative part 2 of the device and the second conductive part 7 is connected to the positive part 3 of the device.
In one embodiment of a power mechanical circuit breaker (fig. 11), the inertial oscillation element 9 comprises an electrically conductive fixing element 10, a contact element 12 and a rod 11 connecting these elements. The fixing element 10 is connected to the first conductive part 6 of the body 5, while the lever 11 and the contact element 12 are configured to periodically bring the contact element 12 and the second conductive part 7 of the body 5 into contact with each other during oscillations caused by external mechanical forces during operation of the device. The fixing element 10 and the contact element 12 are respectively made in the form of conical spirals having different maximum diameters d1 and d2, the vertices of which are connected to the rod 11.
According to another embodiment of the power mechanical circuit breaker (fig. 12), the fixing element 10 is made in the form of a cylindrical screw, while the contact element 12 is made in the form of an extension of the rod curled into a screw or loop.
In another embodiment of the power mechanical circuit breaker (fig. 13), the fixing element 10 is made in the form of an extension of the lever 11, while the contact element 12 is made in the form of a load weight. An annular collar 13 is provided on the inner wall of the second conductive part 7 of the body 5, on which collar a soft and resilient additional contact element 14 is mounted. The element 14 is configured to oscillate under the action of external mechanical forces during operation of the device, which is electrically isolated from the inertial oscillation element 9 by the dielectric insert 15.
In the gravity type (fig. 14, 15), the body 5 of the mechanical circuit breaker is made in the form of a hollow cylinder inside which the inertial oscillation element 9 in the form of a conductive ball is located. A conductive contact pad 16 is arranged in a central portion of the inner wall of the body 5, said conductive contact pad being separated by a dielectric insert 17 and being alternately connected to the negative and positive parts 2, 3 of the device.
In a rotary version (fig. 16), the body 5 of the mechanical circuit breaker is made in the form of a hollow outer cylinder, while the inertial oscillation element 9 is made in the form of an inner cylinder inside the outer cylinder, with the ability to rotate coaxially. Conductive contact pads 16 are arranged on the inner wall of the body 5 and on the outer wall of the inertial oscillation element 9, alternating with dielectric inserts 17.
In the version provided with a power mechanical circuit breaker 4 (fig. 11-13), the claimed device works in the following way.
In the non-operating mode of the device, the negative and positive parts 2, 3 connected in the DC circuit are open. During operation of the device (e.g., while grooming, brushing, etc.), the device switches to a pulsed mode of operation under the periodic external mechanical force applied to the device. In this mode, the lever 9 with the contact element 12 enters a state of continuous forced oscillation, which causes the periodic closure of the DC circuit under the electrical contact between the parts 6 and 7 of the mechanical circuit breaker 4, respectively connected to the negative and positive parts 2 and 3 of the device.
The difference between the power mechanical circuit breaker shown in fig. 13 and the other circuit breakers (fig. 11, 12) is that, in addition to the lever 9 and the contact element 12, the additional contact element 14 also enters a state of continuous forced oscillation during the pulse mode of the device, but with a different natural oscillation period. The presence of the additional contact element 14 and the ability to change its parameters and the parameters of the lever 9 and the contact element 12 make it possible to modify the closing and opening frequency of the DC circuit in a wider range of values.
When the action of the external mechanical force has ceased, the device switches to an intermediate operating mode in which the lever 9 with the contact element 12 is in a state of damped free oscillation due to the influence of the elastic force, but they have no electrical contact with the body 5. When the oscillation is terminated, the device switches again to the inactive mode.
The device with the gravity type mechanical breaker (fig. 14, 15) works as follows.
In the non-operating mode of the device (fig. 14, 15), the negative and positive parts connected in the DC circuit are closed to each other. Under the action of external mechanical forces applied to the device during operation of the device, the spherical inertial oscillation element 9 enters a state of continuous forced oscillation inside the cavity of the body 5, which provides a periodic closure of the DC circuit by the contact pads 16 and a periodic interruption of the circuit upon contact with the insert 17.
The device with the rotary mechanical circuit breaker (fig. 16) works as follows.
In the non-operating mode of the device (fig. 16), the negative and positive components connected to the DC circuit can be either closed or open. When the device enters the pulsed operating mode, the inertia oscillating element 9 of the rotary mechanical breaker 4 rotates coaxially with the body 5, which periodically closes and opens the DC circuit by periodically contacting the conductive contact pads 16.
The electromotive force generated between the negative part 2 and the positive part 3 of the device ensures that micro-currents pass through the body tissue (the treatment area of the device). During application of the device to the skin, the following effects may occur: pleasant touch, formic feeling, locally improving blood circulation, heating the treatment area. During use of the device in the form of a toothbrush or a cutlery, there may be a sour sensation in the mouth that increases with increasing frequency of galvanic interruption. When the effect of the device is combined with the use of non-invasive therapeutic and/or nutritional agents, an increased rate of penetration of the formulation through the tissue is observed.
In order to evaluate the effectiveness of the electrical stimulation effect of direct current in pulse mode, a test was performed aimed at analyzing the penetration of niacin through human skin. Empirically, it was found that an increase in the frequency of DC circuit interruption resulted in an increase in the rate of penetration of non-invasive therapeutic and/or nutritional agents into body tissue, and the resulting curve had a form that was power law dependent (fig. 17). In determining the dependency, the frequency of interruption was set using a potentiostat "Elins" P-20X, and to determine the permeation rate of the drug, a stopwatch was used to record the moment when the skin became red (which indicates permeation of the test substance). The reference drop of the substance was applied nearby, and it should be noted that no reddening of the skin was observed during the test portion without electrical exposure.
Fig. 17 shows the following points obtained during an experiment using a test rig of the claimed device comprising a mechanical breaker: point 18-for a device in the form of a stick massager-point 19-for a device in the form of a comb.
The range of 0.5 to 20Hz (represented by the box in fig. 17) was determined to be most suitable for practical use, because at lower values substantially no effect of the pulse mode (the rate of penetration of the non-invasive agent into the body tissue decreases and tends to be the penetration rate under the effect of direct current) was observed, whereas any attempt to provide a higher frequency by means of a mechanical transducer involved significant technical difficulties, rapid wear of the device and a substantial increase in manufacturing costs due to miniaturization of the mechanism. The frequency of interruption in said range can be varied by selecting the geometrical and physicochemical parameters of the elements of the circuit breaker 4.
According to Pfluger's law of polarity (b.i. khodorov, general physiology of excitable membranes, m., 1975), it is the influence of direct current that provides states of tissue excitation at the moment of closing and opening the circuit. The claimed device based on the dc pulse mode is thus able to ensure a specific type of physiological influence. In combination with the electrophoretic effect, this form of exposure makes it possible to obtain new physiotherapy and organoleptic effects which are not obtainable with the known analogues of the device. Since the prior art does not allow to implement a circuit breaker as an electronic circuit breaker, the unit for breaking the electrical circuit is made in the claimed device in the form of a mechanical circuit breaker, which will utilize the energy of the proposed variant of the galvanic couple without losing the electrical energy for the operation of the device: EMF 2.8V, current intensity 100 μa, power 0.28W.
Thanks to the above design features, the proposed structure enables to significantly expand the functionality of the electro-stimulation device. Furthermore, the use of the device in combination with a non-invasive therapeutic and/or nutritional agent enables to increase the rate of penetration of the agent into the body tissue due to the electrophoretic effect (the higher the frequency of the pulse pattern and the greater the potential difference in the galvanic couple, the higher the penetration rate).
Claims (16)
1. A device for non-invasive electrical stimulation of body tissue comprising a negative and a positive part connected to a direct current circuit and a unit located therebetween for breaking said circuit, characterized in that:
the negative and positive parts are made of materials having different electronegativity, forming a galvanic couple, while the breaking unit is made in the form of a mechanical circuit breaker provided with a body and an inertial oscillation element configured to periodically open and close the circuit under the effect of an external force,
wherein the body of the mechanical circuit breaker is made hollow and the inertial oscillation element is located inside said body,
wherein if the mechanical circuit breaker is powered, the body comprises conductive parts connected by a dielectric, but if the mechanical circuit breaker is gravity or rotary, the body comprises conductive contact pads alternating with dielectric inserts.
2. The device for non-invasive electrical stimulation of body tissue according to claim 1, wherein the device is configured to interrupt the electrical circuit at a frequency of 0.5-20 Hz.
3. The device for non-invasive electrical stimulation of body tissue according to claim 1, wherein the galvanic couple generates a voltage of the electrochemical system of 0.4-2.8V in the circuit.
4. The device for non-invasive electrical stimulation of body tissue according to claim 1, wherein the negative electrode member is made of gold, platinum, silver, graphite or palladium.
5. The device for non-invasive electrical stimulation of body tissue according to claim 1, wherein the positive electrode component is made of zinc, magnesium, lithium or alloys thereof.
6. The device for non-invasive electrical stimulation of body tissue according to claim 1, wherein the device is made in the form of a dielectric blank on which the negative and positive electrode parts are arranged in the form of a metal coating.
7. The device for non-invasive electrical stimulation of body tissue according to claim 1, wherein the body of the mechanical circuit breaker comprises a first electrically conductive part and a second electrically conductive part connected by a dielectric, wherein the first electrically conductive part of the body is connected to a negative part of the device and the second electrically conductive part of the body is connected to a positive part of the device.
8. The device for non-invasive electrical stimulation of body tissue according to claim 7, wherein the inertial oscillation element comprises a fixation element, a contact element and a rod connecting these elements, the fixation element, the contact element and the rod connecting these elements being all electrically conductive, wherein the fixation element is connected to a first electrically conductive part of the body and the rod and the contact element are configured to bring the contact element and a second electrically conductive part of the body into periodic contact with each other during oscillation under external forces.
9. The device for non-invasive electrical stimulation of body tissue according to claim 8, wherein the fixation element and the contact element are made in the form of conical spirals having different maximum diameters, the apexes of which are connected to the rod.
10. The device for non-invasive electrical stimulation of body tissue according to claim 8, wherein the fixation element is made in the form of a cylindrical spiral and the contact element is made in the form of an elongated portion of a rod curled into a spiral or loop.
11. A device for non-invasive electrical stimulation of body tissue according to claim 8, characterized in that a collar is provided on the inner wall of the second electrically conductive part of the body, on which collar a soft and resilient additional contact element is mounted, which element is configured to oscillate under the influence of external forces and to be electrically isolated from the inertial oscillation element in the absence of these external forces.
12. The device for non-invasive electrical stimulation of body tissue according to claim 11, wherein the additional contact element is made in the form of a cylindrical spiral.
13. The device for non-invasive electrical stimulation of body tissue according to claim 11, wherein a dielectric insert is located between the stem and the additional contact element.
14. The device for non-invasive electrical stimulation of body tissue according to claim 8, wherein the fixation element is made in the form of an extension of the rod and the contact element is made in the form of a load weight.
15. The device for non-invasive electrical stimulation of body tissue according to claim 1, characterized in that the body of the mechanical circuit breaker is made in the form of a hollow cylinder inside which an inertial oscillation element in the form of a conductive ball is arranged, the diameter of the ball being smaller than the inner diameter of the cylinder and equal to the height of the cylinder cavity, wherein the conductive contact pads are arranged in the central portion of the inner wall of the cylinder and are alternately connected to the negative and positive parts of the device.
16. The device for non-invasive electrical stimulation of body tissue according to claim 1, characterized in that the body of the mechanical circuit breaker is made in the form of a hollow outer cylinder, the inertial oscillation element being made in the form of an inner cylinder with coaxial rotation capability inside the outer cylinder, wherein the electrically conductive contact pads are located on the inner wall of the outer cylinder and on the outer wall of the inner cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2022118385A RU2792528C1 (en) | 2022-07-06 | Device for non-invasive electrical stimulation of body tissues | |
| RU2022118385 | 2022-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117357786A true CN117357786A (en) | 2024-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310821749.1A Pending CN117357786A (en) | 2022-07-06 | 2023-07-06 | Device for non-invasive electrical stimulation of body tissue |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117357786A (en) |
| WO (1) | WO2024010488A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240057755A1 (en) * | 2020-04-06 | 2024-02-22 | Proxihealthcare Inc. | Electric toothbrush |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5147297A (en) * | 1990-05-07 | 1992-09-15 | Alza Corporation | Iontophoretic delivery device |
| US6238381B1 (en) | 1990-11-01 | 2001-05-29 | Robert Tapper | Iontophoretic treatment system |
| IL114728A (en) | 1995-07-25 | 1998-12-06 | Pelz Smuel | Massage device |
| RU2183439C2 (en) | 2000-01-27 | 2002-06-20 | Измайлов Игорь Вячеславович | Toothbrush |
| ATE402733T1 (en) * | 2001-04-04 | 2008-08-15 | Alza Corp | ELECTRICAL TRANSDERMAL ADMINISTRATION DEVICE WITH A COMPATIBLE ANTIMICROBIAL RESERVOIR SOLUTION |
| RU2215555C2 (en) | 2001-09-12 | 2003-11-10 | Родимин Евгений Михайлович | Method and apparatus for physiotherapy |
| AU2012348573A1 (en) | 2011-12-08 | 2014-07-24 | Pilogics L.P. | Apparatus for stimulating hair growth and/or preventing hair loss |
| CN111888641B (en) * | 2019-05-06 | 2023-09-22 | 上海肤泰科技有限公司 | Iontophoresis drug delivery device |
-
2023
- 2023-07-05 WO PCT/RU2023/000197 patent/WO2024010488A1/en unknown
- 2023-07-06 CN CN202310821749.1A patent/CN117357786A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240057755A1 (en) * | 2020-04-06 | 2024-02-22 | Proxihealthcare Inc. | Electric toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024010488A1 (en) | 2024-01-11 |
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