PROGRAMMING A TRANSCUTANEOUS ELECTROSTIMULATION DEVICE

Abstract

A method is proposed for adjusting a transcutaneous electrical nerve stimulation (TENS) device. The device comprises at least one electrode, a rechargeable battery connected to the electrode, and a control unit coupled with a memory. The control unit is capable of configuring an electrical current supplied by the battery and delivered by the electrode. The method includes selecting, from the memory, a program associated with several parameters of the electrical current delivered by the electrode. Each parameter is associated with a value. The program includes at least the following parameters: a voltage of the electrical current pulses; a duration of the electrical current pulses; and a frequency of the electrical current pulses. The method then configures the control unit so that the electrical current delivered by the electrode corresponds to the parameter values ​​of the selected program.

Description

Title of the invention: PROGRAMMING OF A TRANSCUTANEOUS ELECTROSTIMULATION DEVICE FIELD OF THE INVENTION

[0001] The present invention relates to the technical field of transcutaneous electrostimulation devices. TECHNICAL BACKGROUND

[0002] The pain message is transmitted from the painful area to the brain via nociceptive fibers. There are two known types of nociceptive fibers. The first type is the Aô (A delta) fibers which are involved in rapid transmission of information to the brain, for example in the case of immediate, intense and very brief pain. The second type of fiber is the C fibers which are the most numerous and are involved in slow and long-lasting transmission of information, for example in persistent and diffuse pain.

[0003] Transcutaneous electrical nerve stimulation provides pain relief at using an electrical current of a specifically adapted intensity. This non-drug method is used daily in pain centers. Transcutaneous electrical nerve stimulation reduces or eliminates pain in all painful muscle and joint tissues, but does not treat the cause of the pain. The electrical current is transmitted by electrodes placed on the surface of the skin. To facilitate the electrical circuit, a gel is generally used between the electrode and the skin. The electrical current creates electrical excitation of the nerves. The pain is reduced through two actions. First, an immediate action obtained by reducing the transmission of pain to the spinal cord, in other words a "portal effect" is achieved by the transcutaneous electrical nerve stimulation device.Then there is a lasting action which is caused by the increase in the secretion of endorphins, natural pain-relieving hormones secreted by the brain.

[0004] Transcutaneous electrical nerve stimulation is therefore a real alternative to an pain relief that has been scientifically proven by the medical profession. It also provides immediate and / or long-lasting pain relief. Furthermore, it is a solution with very few side effects, unlike the adverse effects of the most common analgesics and anti-inflammatories such as digestive and / or cardiovascular side effects.

[0005] However, adjusting a transcutaneous electrostimulation device can be complex for the general public because the number of combinations of the electrical current parameters is very large (theoretically infinite). In addition, only a number A limited number of these combinations provides optimal therapeutic efficacy. In addition, the intensity of the pain may or may not require rapid relief, which will depend on the characteristics of the electrical neurostimulation. In addition, the type of pain (muscular, joint, etc.) and the location of the pain (stomach, head, etc.) also require specific parameters of the electrical current for greater effectiveness.

[0006] There is therefore currently no simple method of adjusting a transcutaneous electrical neurostimulation device that is capable of adapting to different pain situations. Summary of the invention

[0007] The present invention provides a method for adjusting a transcutaneous electrostimulation device. The device comprises at least one electrode, a rechargeable battery connected to the electrode, and a control unit coupled to a memory, the control unit being capable of configuring an electric current supplied by the battery and delivered by the electrode. The method comprises the operations of:

[0008] - selecting, from the memory, a program associated with several parameters of the electric current delivered by the electrode, each parameter being associated with a value, the program including at least as parameters:

[0009] - a voltage of the pulses of the electric current;

[0010] - a duration of the pulses of the electric current;

[0011] - a frequency of the pulses of the electric current;

[0012] - configure the control unit so that the electric current delivered by the electrode corresponds to the parameter values ​​of the selected program.

[0013] Such a method improves the efficiency, use and safety of use of a transcutaneous electrostimulation device. Indeed, the device comprises a memory in which a program is stored. This program is associated with at least three of the main parameters of the electrical current which will be sent to the pain area, and each of these parameters is associated with a value. These parameters and their respective values ​​define the conditions necessary to obtain a configuration of the electrical current which acts on the pain without user intervention (for example manual configuration) being necessary.Furthermore, the method of adjusting a transcutaneous electrostimulation device according to the invention allows a user to use the device alone for parts of the body that are more difficult to access because calling up a program requires little or no action on the part of the user; it is therefore possible for a user alone to adjust the device, even if the latter is placed on areas of the body that are less easily accessible, for example the shoulder.

[0014] According to different embodiments, any combination of at least one of the following features can be implemented:

[0015] - selecting a program includes the operations of selecting a default program, provide a default value, stored in memory, associated with each parameter of the selected default program;

[0016] - selecting a program further comprises the operation of selecting, by user action on a first selection member, a new value of at least one parameter of the electric current delivered by the electrode;

[0017] - the new selected value of the at least one parameter is an intensity value of an electric current;

[0018] - selecting a program further comprises the operation of selecting sequentially, by user action on a second selection member, a program from at least two programs stored in the memory;

[0019] - a selection operation further comprises transmitting, by a transmitting device of light, a light signal for each new selection;

[0020] - one of the operations of selecting a program further comprises emit, by a sound emitting device, a sound which uniquely identifies the selected program;

[0021] - the memory storing a first program for which the width of the pulses the electric current delivered by the electrode is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive, the frequency of the pulses of the electric current delivered by the electrode is between 60 and 140 hertz inclusive, preferably between 80 and 120 hertz inclusive;

[0022] - the memory storing a second program for which the width of the pulses of the electric current is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive, the frequency of the pulses of the electric current is between 2 and 8 hertz inclusive, preferably between 4 and 6 hertz inclusive;

[0023] - the pulses of the electric current delivered by the electrode are generated continuously

[0024] - the memory storing a third program for which the width of the pulses of the electric current is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive, the frequency of the pulses of the electric current delivered by the electrode comprises: a first pulse frequency of the electric current between 60 and 140 hertz inclusive, preferably between 80 and 120 hertz inclusive; and a second pulse frequency of the electric current between 2 and 8 hertz inclusive included, preferably between 4 and 6 hertz inclusive; a first duration of generation of the pulses according to the first frequency and a second duration of generation of the pulses according to the second frequency, the first duration and the second duration being substantially equal;

[0025] - the memory storing a fourth program for which the frequency of the im pulses of the electric current delivered by the electrode are between 1 and 150 hertz inclusive, the frequency of the pulses increasing and decreasing as a function of time in order to form a triangle signal;

[0026] - the width of the pulses of the electric current delivered by the electrode is included in 50 and 500 microseconds inclusive, preferably between 50 and 250 microseconds inclusive, the pulse width decreasing for each increase in pulse frequency and increasing for each decrease in pulse frequency;

[0027] - the pulses of the electric current delivered by the electrode are generated in cycles discontinuous;

[0028] - the memory stores a fifth program which successively executes the first, second, third and fourth programs repeatedly, no electrical signal being emitted between each repetition so that each successive execution of the three programs has a duration of between 45 and 75 seconds, preferably substantially equal to 60 seconds;

[0029] - the voltage value of the electric current is between 3.5 and 25 volts, terminals included.

[0030] The present invention also provides a computer program comprising program code instructions for executing the steps of the method according to the invention when said program is executed on a control unit of the transcutaneous electrostimulation device.

[0031] A computer-readable information medium on which the computer program is recorded is also provided.

[0032] A transcutaneous electrostimulation device is also proposed, comprising:

[0033] - at least one electrode;

[0034] - a rechargeable battery connected to the electrode;

[0035] - a control unit coupled to a memory, the control unit being adapted to configure an electric current supplied by the battery and delivered by the electrode, the memory comprising program code instructions of the program according to the invention.

[0036] The device may further comprise:

[0037] - the battery, the control unit and the memory are arranged in a housing comprising a bottom forming a surface;

[0038] - the electrode is arranged on a flexible material which is substantially in the same plane than the bottom of the case. BRIEF DESCRIPTION OF THE FIGURES

[0039] Embodiments of the invention will now be described by means of non-limiting examples of the invention, and with reference to the figures, where:

[0040] FIG. 1 is an example of a top view of a device according to the invention;

[0041] FIG. 2 is an example of a bottom view of the device of FIG. 1;

[0042] FIG. 3 is an example of a side view of the device of FIG. 1;

[0043] FIG. 4 is a second example of a top view of a device according to the invention;

[0044] FIG. 5 is a third example of a top view of a device according to the invention;

[0045] FIG. 6 is a fourth example of a top view of a device according to the invention;

[0046] FIG. 7 is a generic representation of intensity as a function of time current pulses;

[0047] FIG. 8 is a representation of the intensity as a function of time of a first example of a current pulse program;

[0048] FIG. 9 is a representation of the intensity as a function of time of a second example current program;

[0049] FIG. 10 is a representation of the frequency versus time of a third example current pulse program;

[0050] FIG. 11 is a representation of the intensity as a function of time of the example of FIG. 10;

[0051] FIG. 12 is a representation of the frequency versus time of a fourth example current pulse program;

[0052] FIG. 13 is a table showing an example of the parameters of the current program of FIG. 12;

[0053] FIG. 14 is a representation of the intensity as a function of time of the example of FIG. 12;

[0054] FIG. 15 is a schematic example of a device according to the invention;

[0055] FIG. 16 is an example of a programming method according to the invention.

[0056] DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0057] The present invention relates to the adjustment or programming of a transcutaneous electrostimulation device. Such a device makes it possible to immediately and / or permanently relieve pain which may be, but is not limited to, joint, muscular, etc., using an electric current of a suitable intensity and frequency.

[0058] With reference to FIG. 15, a schematic example of a transcutaneous electrostimulation device 600 is discussed. The device comprises at least one electrode 610 which is an electrically conductive device that allows energy to be supplied electrical energy at the skin of the body part on which it is placed. The electrical energy is typically a direct current type electric current. Direct current can be delivered discontinuously. The electrode generally comprises a first electrically conductive face, and a second face which is insulating in order to prevent any electrical contact between this second face and another object or body or body part.

[0059] In some embodiments, the electrode may comprise a conductive gel that facilitates the transmission of electrical energy between the electrode and the skin, and avoids skin irritation at the skin. The conductive gel is therefore deposited on the conductive face of the electrode.

[0060] In some embodiments, the conductive gel may be an adhesive gel that is deposited on the electrode before the device is used. The adhesive gel may be placed between two sheets (or protective films) that hold it and protect it before it is applied to the electrode. The two sheets may be made of plastic. When the gel is placed on the electrode, one of the two sheets may be removed, thus releasing one of the faces of the adhesive gel that will be brought into contact with the electrode. The adhesive properties of the gel hold it on the electrode. The second sheet is then removed, so that the electrode has the adhesive gel on its conductive face. When the device is placed on the area of ​​the body to be treated, it can be kept fixed on the body thanks to the adhesive properties of the adhesive gel.When the device is not in use, the adhesive gel that is still on the electrode can be protected by replacing one of the protective films over it.

[0061] The device 600 further comprises a battery 606. The battery is an electrochemical element in which chemical energy is converted into electrical energy. The battery is rechargeable, that is to say that it is possible to store electrical energy therein again, for example by connecting the battery to an external source of electricity. The rechargeable battery can be of any technology such as, but is not limited to, lithium ion, lithium polymer, ... The rechargeable battery is connected to the electrode, that is to say that the electrical energy produced by the battery can be transmitted to the electrode.

[0062] The battery produces a direct current and therefore has a positive output terminal and a negative output terminal. The electrode 610 is therefore divided into two sub-electrodes: a positive electrode which is connected to the positive terminal of the battery and a negative electrode which is connected to the negative terminal of the battery. When the electrode is placed on the area of ​​skin to be treated, the electric current therefore passes from the negative electrode to the positive electrode.

[0063] Still with reference to FIG. 15, the transcutaneous electrical stimulation device 600 also comprises a battery control unit (CU) 608. The control unit The function of the control unit is to configure (or conform) the electrical current supplied by the battery so that it has the desired shape. The electrical energy produced by the battery is therefore transformed into an electrical signal which is transmitted to the electrode, and the latter delivers this electrical signal to the area of ​​the body on which the electrode (and therefore the device) is applied. The control unit is programmable, that is to say it can be configured to produce different electrical signals from the energy supplied by the battery. The control unit is therefore similar to a computing unit.

[0064] The transcutaneous electrical stimulation device 600 also includes a memory that is coupled with the control unit. In the example of FIG. 15, the control unit and the memory are coupled via a BUS 602, it being understood that they can be coupled (i.e., put in relation) by any means. The memory is a memory for storing the instructions and data necessary for the operation of a computer program. The memory may be, but is not limited to, a non-volatile memory, including for example semiconductor memories such as EPROMs, EEPROMs, flash memory. All the elements 602, 604, 606, 608 can be supplemented by or incorporated into ASICs (acronym for "application-specific integrated circuits").

[0065] The computer program may comprise instructions executable by the control unit 608. The instructions comprise means for causing the system to execute the method according to the invention. The program may be recordable on any data storage medium, including the memory 604. The program may, for example, be implemented in digital electronic circuits, or in computer hardware, firmware, software, or combinations thereof. The program may be implemented as an apparatus, for example, a product tangibly incorporated in a machine-readable storage device for execution by a programmable processor. The steps of the method according to the invention may be executed by a programmable processor executing a program of instructions to perform functions of the method by operating on input data and generating an output.The control unit may be or may include the programmable processor. The processor may thus be programmed and coupled to receive data and instructions, to transmit data and instructions to a data storage system, to at least one input device and to at least one output device. The computer program may be implemented in a high-level procedural or object-oriented programming language, or in assembly or machine language if necessary. In all cases, the language may be a compiled or interpreted language. The program may be a complete installation program or an update program. The application of the program on the system in all cases results in instructions for the execution of the method.

[0066] With reference to FIG. 16, examples of the method of adjusting the transcutaneous electrical stimulation device are now discussed. The various examples can be combined with each other, the combinations not being limited to that shown in FIG. 16.

[0067] In embodiments according to the invention, the method may comprise an operation of switching on the transcutaneous electrostimulation device. Switching on means that the control unit is able to receive instructions from a computer program stored in the memory, or an instruction from a user.

[0068] In embodiments according to the invention, the transcutaneous electrical stimulation device may comprise a power-up member which in response to a user action (1300) powers up the device (1302). The member may be a switch, for example a button, which the user presses, for example, for a predetermined duration.

[0069] In examples, the device may comprise a sound emitting device, for example a loudspeaker or a buzzer. After the user presses the power-on member, a sound is emitted (1304), for example a beep, confirming that the device is powered on.

[0070] In examples, the device may comprise a light-emitting device, for example a light-emitting diode (LED). After the user presses the power-on member, a light signal is emitted (1304). The light signal may be brief, for example of the order of a few seconds, or conversely the light signal may be constantly lit as long as the device is powered on.

[0071] Then, a selection of a program is made. The selection is made in the memory of the device, that is to say that the program is stored on the memory. The selection means that there is identification of the program in the memory, and that the control unit can access the program, for example for its execution. The program is a list of several parameters of the electric current to be delivered to the electrode (and therefore consequently to be delivered by the electrode) in which each parameter is associated with a value. The electric current delivered by the control unit to the electrode is a succession of current pulses, that is to say that the current is in a variable state. The pulses are of the rectangular signal type. The variation of the intensity of the current over time produces the pulses, and a pulse is a short-term variation of a physical quantity of the current with return to the initial state.Current parameters represent characteristics. physical characteristics of the latter which may vary.

[0072] One of these parameters is the voltage of the current pulses. Its value is expressed in volts. It is understood that it is equivalent to speak of the intensity of the current pulses.

[0073] Another of these parameters is the duration of the electrical pulses. The duration of the pulses represents the time during which a voltage is emitted; for example, for a rectangular signal, it is the time during which the signal remains high. Its value can be expressed in seconds or in sub-multiples.

[0074] The third of these parameters is the frequency of the electric current pulses. Frequency represents the number of pulses that are emitted per second. Its value is expressed in Hertz.

[0075] It will be understood that these parameter values ​​are particularly suitable for characterizing rectangular type electrical pulses that can be used for transcutaneous electrostimulation. FIG. 7 illustrates a generic example of rectangular electrical pulses that can be programmed. The two pulses 70, 72 have a height that represents a current intensity. Their pulse widths are identical. The time T that elapses between two rising edges of two successive pulses is the periodicity between two pulses. In the example of FIG. 7, the pulses are unidirectional, that is to say that the current is polarized. In example programs that will be described below, the pulses can be bidirectional, that is to say that the current is depolarized and therefore that the negative and positive poles are reversed at each pulse.

[0076] In examples, the memory of the device may store a first program schematically represented in FIG. 8, in which the voltage value of the electric current is between 3.5 and 17 volts inclusive. Note that in FIG. 8 the intensity of the pulses is represented as a function of time. The pulses are bidirectional, the voltage values ​​are therefore given in absolute value. The width of the pulses of the electric current is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive. In FIG. 8, all the pulses have a substantially equal width with a corresponding value of 180 microseconds. The frequency of the pulses is between 60 and 140 hertz inclusive, preferably between 80 and 120 hertz inclusive. In FIG. 8, the frequency is 100 Hz. The first program is a high frequency simulation.It is suitable for continuously stimulating the Aa and A[3 type nerve fibers to reduce the message transmitted by the Aô and C pain nerve fibers. This first program therefore produces rapid, but short-lasting relief. In addition, the user can vary the value of the intensity of the electric current until he finds a value that suits him, that is to say a value at which the area . treated responds, or in other words an intensity value for which the user is relieved.

[0077] In examples, the memory of the device may store a second program schematically represented in FIG. 9, in which the voltage value of the electric current is between 7 and 25 volts inclusive. The intensity of the pulses is represented as a function of time in FIG. 9. The pulses are also bidirectional. The width of the pulses of the electric current is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive. In FIG. 9, all the pulses have a substantially equal width with a corresponding value of 200 microseconds. The frequency of the pulses is between 2 and 8 hertz inclusive, preferably between 4 and 6 hertz inclusive. In FIG. 9, the frequency is 4 Hz. The second program is a low frequency simulation.It is suitable for stimulating the brain's secretion of endorphins, which provides delayed but lasting pain relief. The current voltage can be selected around the upper limit mentioned above, for example between 20 and 25 volts, to enhance the above-mentioned effects.

[0078] In examples, the pulses of the first program and the second program are generated continuously. In other words, there are no cycles.

[0079] In examples, the memory of the device can store a third program schematically represented in FIG. 10. This third program comprises two successive phases: a first phase where the pulses are generated at high frequency and a second where the pulses are generated at low frequency. The frequency of the pulses of the first phase can be between 60 and 140 hertz inclusive, preferably between 80 and 120 hertz inclusive. The frequency of the pulses of the 2nd phase can be between 2 and 8 hertz inclusive, preferably between 4 and 6 hertz inclusive. FIG. 10 illustrates these two phases with a first phase during which the pulses are generated at a frequency of 100 Hz and a second phase during which the pulses are generated at a frequency of 4 hertz.The width of the electric current pulses may be between 50 and 500 microseconds inclusive, preferably between 130 and 220 microseconds inclusive. In FIG. 11, the pulses are shown with a width of 150 microseconds for the first phase and 200 microseconds for the second phase. In the example of FIG. 11, the duration of the first and second phases are identical, it being understood that they may be of different durations. The first and second phases form a cycle. In examples, the cycles may be generated continuously. In examples, and preferably, the cycles are discontinuous with a pause between each cycle of a duration . which can be understood for example between 1 and 3 seconds. In the example of FIG. 11, a cycle comprising the first and second phases has a duration of 6 seconds, and a pause of 1 second separates each generated cycle. The voltage value of the electric current can be understood between 3.5 and 24 volts terminals inclusive. Note that in FIG. 11 the intensity of the pulses is represented as a function of time and that the pulses are bidirectional. The third program therefore resembles a combination of the first program (high frequency, low intensity) and the second program (low frequency, high intensity) which is generated discontinuously. The relief provided by the third program is immediate and lasting.

[0080] In examples, the memory of the device can store a fourth program schematically represented in FIG. 12. This involves generating successions of current pulse cycles where for each cycle the frequency varies as a function of time in order to form a triangle signal: the frequency increases gradually during the first half of the cycle and decreases gradually during the second half of the cycle to reach at the end of the cycle a frequency which is equal to the starting frequency of the first half of the cycle. In examples, the frequency of the electric current pulses is between 1 and 150 hertz inclusive. The width of the pulses decreases with each increase in the frequency of the pulses, and conversely increases with each decrease in the frequency of the pulses.In other words, the first half of the cycle sees the pulse width gradually decrease while the second half of the cycle sees the pulse width gradually increase. The voltage value of the electric current can be between 3.5 and 21 volts inclusive. FIG. 13 is an example of variations in frequency and pulse width for a half cycle. The same values ​​reversed can be used for the next half cycle. The pulse width of the electric current can be between 50 and 500 microseconds inclusive, preferably between 50 and 250 microseconds inclusive. In the example of FIG. 13, the pulse time of all the pulses is equal to 0.5 seconds, and the sum of the pulse times for a half cycle is 7 seconds. A complete cycle is therefore 14 seconds. Note that in FIG.14 that the intensity of the pulses is represented as a function of time and that the pulses are bidirectional. The values ​​reported in FIG. 14 correspond to those in the table in FIG. 13. It can thus be observed in FIG. 14 that the first pulse comprises two pulse widths of 200 microseconds over a pulse time of 0.5 seconds at a frequency of 2 Hertz, and the last pulse of the (rising) half-cycle comprises two pulses of 96 microseconds over a pulse time of 0.5 seconds and at a frequency of 100 Hertz. This last pulse of the rising half-cycle is also the first pulse of the falling half-cycle, and the first pulse of the half- . rising cycle becomes the last pulse of the descending half-cycle. In examples, successive cycles may be generated continuously, i.e., without a pause between them. In examples, and preferably, the cycles are discontinuous with a pause between each cycle that may be, for example, between 1 and 3 seconds. The fourth program causes rapid and lasting pain relief accompanied by a massaging sensation that is caused in particular by the gradual and simultaneous variation of the frequency and pulse width of the electrical signal.

[0081] In examples, the memory of the device may store a fifth program that successively executes the first, third, and fourth programs repeatedly. Between each repetition, no electrical signal is emitted so that each successive execution of the three programs lasts between 45 and 75 seconds, preferably around 60 seconds.

[0082] In examples, the memory of the device may store a sixth program which is a combination of the first program executed successively with a respective frequency substantially equal to 100 hertz, then 80 hertz and then 60 hertz, and the second program executed successively with a respective frequency substantially equal to 100 / 2 hertz, then 80 / 2 hertz and then 60 / 2 hertz. The width of the pulses may be between 80 and 120 microseconds, and preferably substantially equal to 100 microseconds. This program is particularly well suited for dysmenorrhea.

[0083] In examples, the memory of the device may store a seventh program similar to the first program, for which the pulse frequency is between 80 and 120 hertz, preferably substantially equal to 100 hertz and the pulse width is between 80 and 120 microseconds, preferably substantially equal to 100 microseconds. Dysmenorrhea may be treated using this seventh program. Headache pain may also be effectively reduced with this program.

[0084] In examples, the memory of the device may store an eighth program similar to the first program for which the frequency of the pulses is between 40 and 80 hertz, preferably substantially equal to 60 hertz and the width of the pulses is between 80 and 120 microseconds, preferably substantially equal to 100 microseconds. This eighth program is particularly suitable for preventing headaches, for example a migraine, when the first signs appear.

[0085] In examples, the duration of the aforementioned programs may be between 20 and 35 minutes, preferably the duration of a program is substantially equal to 30 minutes, or even 60 minutes for better efficiency while preserving the battery charge level.

[0086] In examples, the value of the voltage of the electric current for the programs is between 3.5 and 15 volts, terminals included. These values ​​have shown good effectiveness of the stimulation while being adapted to the voltages that the rechargeable battery can deliver.

[0087] Returning to FIG. 16, examples of selecting a program stored in memory are discussed. In FIG. 16, the selection is shown as being made after the device is powered on, however, it will be understood that the selection can be made at any time, for example, it is possible to select another program even while a program is running. Generally, a necessary and sufficient condition for a program to be selected is that the device be powered on.

[0088] In examples, the selection includes selecting a default program. For example, if the memory includes multiple programs, one of those programs is automatically selected to generate the electrical current delivered by the electrode. In one example, this default program is the first program previously discussed that provides rapid pain relief. The selection of the default program may be accompanied by providing a default value for each parameter of the default program; each value is included in the memory.

[0089] In examples, the user can select a program (1320), or even change the default program if it was selected following the powering up of the device. In FIG. 16, the selection is made following the default selection of the first program (operation not shown). The selection is obtained by a user action on a selection member (1310), for example a button arranged on the device, which triggers the selection of another program included in the memory. When the memory comprises several programs, the programs can be selected sequentially, that is to say that each new user action on the selection member triggers the selection of a new program, and when all the programs have been proposed to the user, the default program is again proposed for a new user action on the selection member.This allows the user to continuously scroll through all programs one by one. The last program selected is the last program presented to the user, either the default program selected or the program selected following the last user action on the selection device.

[0090] In examples, the selection member makes it possible to propose a new program, but also to propose a previously presented program. This allows the user to more quickly select the program that he wishes to have, for example in case he has missed it. In one example, the selection member comprises two selection organs, for example a "plus" button and a "minus" button, where each organ allows you to scroll through the programs in its own direction; for example, the "plus" button allows you to progress through an ordered list of programs in one direction (for example, in ascending order) while the "minus" button allows you to progress through the list in the opposite direction.

[0091] In examples, the selection of a program may be accompanied by a sound that uniquely identifies the selected program. It is understood that the device then comprises a sound emitting device, which may be, but is not limited to, a loudspeaker, a buzzer, etc. The identification of the selected program may be carried out, for example, using a number of beeps where each number is associated with a single program; for example, the first program with one beep, the second with two beeps, and so on.

[0092] In examples, the selection may be accompanied by a light signal emitted by the light emitting device.

[0093] In examples, the selection may be accompanied (1322) by a sound that uniquely identifies the selected program, as previously selected, or by a sound that has the sole purpose of informing that the selection is confirmed.

[0094] Then, once the selection has been made, the control unit is configured so that the electrical current delivered by the electrode corresponds to the values ​​of the parameters of the selected program. In other words, the control unit is configured to execute the electrical stimulation associated with the program. This configuration is therefore a programming (or reprogramming) of the device.

[0095] In examples, the selection may be followed by a confirmation of the selection. The confirmation of the selection allows the user to confirm to the device that they wish the selected program to be executed. In one example, this may be achieved with a particular user action on the selection member.

[0096] In examples, confirmation of the selection may be implicit with the start of the stimulation (and therefore once the control unit has been configured), for example by performing a user action on the selection member (1330).

[0097] In examples, the program selection may include a user action to select (1340) a new value of a parameter of the selected program. The selection of this parameter value may be made via a selection member.

[0098] In examples, the member for selecting this parameter value may be the same as that used to select the program. In one example, the selection member comprises two buttons, a "plus" button and a "minus" button. Each action on the "plus" button increases the value, and vice versa each user action on the "minus" button decreases the parameter value (1342). In order to be able to distinguish between a program selection and a modification of a parameter value when the same selection device is used, the duration of the user action on the device can be used: a long action (for example, pressing the button for more than three seconds) will be interpreted by the device as a program selection, and conversely a short action (for example, pressing the button for less than three seconds) will be interpreted by the device as a parameter value selection.

[0099] In examples, the selection of a parameter value may be accompanied by a sound and / or a light signal to assist the user in the selection.

[0100] For example, the range of parameter values ​​that can be selected may be limited. When the user wishes to move outside this range of values, which is not possible, the system may inform the user using a sound and / or a light signal.

[0101] In examples, the new selected value is an electrical current intensity value. This allows the user to increase the effect of the electrostimulation based on their experience of the electrical stimulation and the pain relief obtained.

[0102] It is understood that the choice of the intensity value could be made before the start of the stimulation, for example, the user knows which intensity suits him.

[0103] In examples, when the battery is not sufficiently charged to carry out a complete program, the device can inform the user and / or go into safety mode (the program cannot be executed) or be executed until the battery is empty.

[0104] In examples, when the battery is not sufficiently charged to carry out a complete program (for its entire duration), it is possible to operate the device by connecting the rechargeable battery to an external power source. The device can then operate on mains power.

[0105] With reference to FIG. 1 to FIG. 6, examples of devices are now discussed. These figures are photographs of devices. In FIG. 1, the device according to the invention comprises a housing in which the battery, the control unit and the memory are arranged. The housing makes it possible to protect them from external elements which could damage them (dust, water, etc.). The housing can therefore be waterproof. The housing can comprise a power-on and / or power-off member 120. The housing can also comprise a first member for selecting a program and / or a second member for selecting a parameter value. In the example of FIG. 1, the first and second members are the same and identical: it is a button " plus » 122a and a “minus” button 122b. The housing of this example includes an LED 124 acting as a light indicator and a buzzer (not shown). The housing includes two electrodes, one positive and one negative, which are not directly visible with the top view; more precisely, the second (insulating) face of the electrode 10a, 10b is visible. The two electrodes are connected and secured to the housing, thus forming a compact device. Two notches 14a and 14b increase the flexibility of the device, thus allowing it to be placed on curved parts of the body.

[0106] The housing may be made of a solid and protective polymer material, for example ABS (Acrylonitrile butadiene styrene) plastic. The housing 12 and the electrodes 10a, 10b may be covered on this face with a flexible and electrically insulating material of the silicone type.The electrodes further comprise in this example tabs 16a, 16b which facilitate the removal of the device which is held on the skin for example using an adhesive gel.

[0107] FIG. 2 is a bottom view of the same device shown in FIG. 1. The housing 12 comprises a bottom which forms a surface, for example a plane. This surface is preferably merged with the surface of the electrodes 10a, 10b in order to improve the placement of the device on the area to be treated. The electrode is therefore substantially in the same plane as the bottom of the housing. The electrically conductive surfaces 16a, 16b of the electrode are accessible. These surfaces can accommodate the gel, for example the adhesive gel.

[0108] FIG. 3 is a side view of the transcutaneous electrical stimulation device shown in FIG. 1 and FIG. 2. The housing 12 includes an opening 126 that provides access to an interface for electrically connecting the battery to an external power source, for example to recharge the battery. The interface can be of any type. In one example, the interface is a USB interface and can be connected to a power source using a USB cable 30.

[0109] The device shown in FIGs. 1 to 3 comprises large electrodes which make it possible to cover relatively flat parts of the body, for example the back or a thigh.

[0110] FIG. 4 is another example of a device similar to that of FIGs. 1 to 3, except that the electrodes 10a, 10b have a substantially different shape which is adapted to be placed on the forehead in order to relieve headaches. Thus the electrodes are narrower and longer to cover the forehead. Only one tab is present in this example. The electrodes each include an opening 40a, 40b facilitating the attachment of a headband (not shown) in order to hold the device against the patient's forehead.

[0111] FIG. 5 is another example of a device similar to that of FIGs. 1 to 3, except that the electrodes 10a, 10b have a substantially different shape which is adapted to be placed on the stomach to relieve dysmenorrhea. In particular, their shape is adapted to cover the organs responsible for pain when the device is placed on the stomach.

[0112] FIG. 6 is another example of a device similar to that of FIGs. 1 to 3, except that the positive electrode 16a (or conversely negative electrode 16b) is no longer integral with the housing. The device comprises two elements, a first element comprising the housing and the positive electrode (or conversely negative), and a second element comprising the negative electrode (or conversely negative). The second element 10a is connected to the housing via an electrically conductive wire, for example the cable 60. The two elements have substantially a half-disc shape which is particularly suitable for being placed around a joint, for example a knee. This improves the effectiveness of the electrostimulation.

[0113] In examples, the housing may further comprise wireless communication means for configuring the control unit, for example performing the operation of selecting a program and / or the operation of selecting a parameter value. The configuration may for example be carried out with the Bluetooth© protocol between an application for example executed by a smartphone and the control unit.

Claims

Claims

1. A method for adjusting a transcutaneous electrostimulation device, the device comprising: - at least one electrode; - a rechargeable battery connected to the electrode; - a control unit coupled to a memory, the control unit being capable of configuring an electric current supplied by the battery and delivered by the electrode; the method comprising the operations of: - selecting, in the memory, a program associated with several parameters of the electric current delivered by the electrode, each parameter being associated with a value, the program comprising at least as parameters: - a voltage of the pulses of the electric current; - a duration of the pulses of the electric current; - a frequency of the pulses of the electric current;- configuring the control unit so that the electrical current delivered by the electrode corresponds to the values ​​of the parameters of the selected program, in which selecting a program comprises the operations of: - selecting a default program; - providing a default value, stored in the memory, associated with each parameter of the selected default program.;

2. Method according to claim 1, in which selecting a program further comprises the operation of: - selecting, by user action on a first selection member, a new value of at least one parameter of the electric current delivered by the electrode.

3. The method of claim 2, wherein the new selected value of the at least one parameter is an intensity value of an electric current.

4. Method according to any one of the preceding claims, in which selecting a program further comprises the operation of: - sequentially selecting, by user action on a second selection member, a program from at least two programs stored in memory.

5. Method according to any one of the preceding claims, in which a selection operation further comprises: - emitting, by a light emitting device, a light signal for each new selection.

6. A method according to any preceding claim, wherein one of the operations of selecting a program further comprises: - emitting, by a sound emitting device, a sound which uniquely identifies the selected program.

7. Method according to any one of the preceding claims, the memory storing a first program for which: - the width of the pulses of the electric current delivered by the electrode is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive; - the frequency of the pulses of the electric current delivered by the electrode is between 60 and 140 hertz inclusive, preferably between 80 and 120 hertz inclusive.

8. Method according to any one of the preceding claims, the memory storing a second program for which: - the width of the pulses of the electric current is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive; - the frequency of the pulses of the electric current is between 2 and 8 hertz inclusive, preferably between 4 and 6 hertz inclusive.

9. A method according to any one of claims 7 or 8, wherein the pulses of electric current delivered by the electrode are generated continuously.

10. Method according to any one of the preceding claims, the memory storing a third program for which: - the width of the pulses of the electric current is between 50 and 500 microseconds inclusive, preferably between 150 and 250 microseconds inclusive; - the frequency of the pulses of the electric current delivered by the electrode comprises: — a first pulse frequency of the electric current between 60 and 140 hertz inclusive, preferably between 80 and 120 hertz terminals included; and — a second pulse frequency of the electric current between 2 and 8 hertz terminals included, preferably between 4 and 6 hertz terminals included; — a first duration of generation of the pulses according to the first frequency and a second duration of generation of the pulses according to the second frequency, the first duration and the second duration being substantially equal.

11. Method according to any one of the preceding claims, the memory storing a fourth program for which: - the frequency of the pulses of the electric current delivered by the electrode is between 1 and 150 hertz inclusive, the frequency of the pulses increasing and decreasing as a function of time in order to form a triangle signal; - the width of the pulses of the electric current delivered by the electrode is between 50 and 500 microseconds inclusive, preferably between 50 and 250 microseconds inclusive, the width of the pulse decreasing for each increase in the frequency of the pulses and increasing for each decrease in the frequency of the pulses.

12. A method according to any one of claims 10 or 11, wherein the pulses of electric current delivered by the electrode are generated in discontinuous cycles.

13. A method according to the combination of claims 7 to 12, wherein the memory stores a fifth program which successively executes the first, second, third and fourth programs repeatedly, no electrical signal being emitted between each repetition so that each successive execution of the three programs has a duration of between 45 and 75 seconds, preferably substantially equal to 60 seconds.

14. A method according to any one of claims 7 to 13, wherein the voltage value of the electric current is between 3.5 and 25 volts, terminals inclusive.

15. A computer program comprising program code instructions for performing the steps of the method according to any one of claims 1 to 14 when said program is executed on a control unit of the transcutaneous electrostimulation device.

16. A transcutaneous electrostimulation device, comprising: - at least one electrode; - a rechargeable battery connected to the electrode; - a control unit coupled to a memory, the control unit being adapted to configure an electric current supplied by the battery and delivered by the electrode, the memory comprising program code instructions of the program according to claim 15.

17. Device according to claim 16, wherein: - the battery, the control unit and the memory are arranged in a housing comprising a bottom forming a surface; - the electrode is arranged on a flexible material which is substantially in the same plane as the bottom of the housing.

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