Wrist-worn device for treating or preventing headache

Abstract

The utility model discloses a wrist-worn device for treating or preventing headache, which comprises a stimulator and a belt body connected with the stimulator, and the belt body can tie the stimulator on a wrist. A shell of the stimulator is provided with a flexible electrode used for targeting median nerves and / or ulnar nerves on the wrist, the stimulator is configured to provide electrical stimulation for the median nerves and / or ulnar nerves through the flexible electrode, and the flexible electrode is detachably connected with the stimulator. The flexible electrode is soft and high in skin-friendly degree, is of a plane structure, is free of point-shaped collision, and is high in comfort during use; meanwhile, the flexible electrode is detachably connected with the stimulator, the flexible electrode can be replaced after being abraded or damaged, the risk that the skin is burnt due to heating of a metal electrode in the prior art can be eliminated, and the use safety is improved, so that the flexible electrode can be replaced by a new flexible electrode in time when the conductive function is reduced, the whole machine does not need to be replaced, and the cost is reduced. The overall service life of the stimulator is prolonged, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment or electronic equipment, in particular to a wrist-worn device for treating or preventing headache. BACKGROUND

[0002] At present, the main method for treating headache is drug treatment, but drug treatment cannot meet the needs of a large number of headache patients due to its side effects and limited efficacy. Therefore, wearable headache treatment instruments have emerged as the times require.

[0003] The existing wearable headache treatment instrument includes a wrist-type headache treatment instrument worn on the wrist, which targets the nerves on the wrist through the setting of electrodes and provides electrical stimulation to promote the conditioned pain modulation mechanism, so as to achieve pain relief treatment and long-term prevention of migraine.

[0004] However, the electrode is a metal electrode integrally arranged on the wrist-type headache treatment instrument, which is relatively hard in texture. Since the electrode needs to be in close contact with the skin during use, there will be a tight feeling, and the comfort of use is low. In addition, with the accumulation of use times, the metal electrode will be worn and damaged, resulting in a decrease in the conductivity. In the process of electrification, it will heat up, especially in the case of using a larger power, it may even burn the skin, and there is a use safety. At this time, only the whole machine can be replaced, and the overall use cost is high, and the economy is low.

[0005] Therefore, the existing technology at least has the following technical problems: the wrist-type headache treatment instrument in the prior art has low comfort of use, and the overall use cost is high. CONTENT OF THE UTILITY MODEL

[0006] The embodiment of the present application provides a wrist-worn device for treating or preventing headache, which is used to solve the technical problems of low comfort of use and high overall use cost of the wrist-type headache treatment instrument in the prior art.

[0007] In order to solve the above problems, the embodiment of the present application provides a wrist-worn device for treating or preventing headache, which comprises a stimulator and a belt body connected with the stimulator, and the belt body can bind the stimulator on the wrist.

[0008] The stimulator comprises a shell, and a flexible electrode for targeting the median nerve and / or ulnar nerve on the wrist is arranged on the shell. The stimulator is configured to provide electrical stimulation to the median nerve and / or ulnar nerve through the flexible electrode, and the flexible electrode is detachably connected with the stimulator.

[0009] Further, the flexible electrode is detachably connected with the stimulator through a connecting structure, and the stimulator comprises a pulse generator for generating electrical pulses.

[0010] When the flexible electrode is connected to the stimulator through the connecting structure, the flexible electrode can be electrically connected with the pulse generator to transmit the electric pulse to the median nerve and / or the ulnar nerve through the flexible electrode.

[0011] Further, the connecting structure is a buckle structure, when the flexible electrode is buckled to the stimulator, the flexible electrode is electrically connected with the pulse generator through the buckle structure to transmit the electric pulse to the median nerve and / or the ulnar nerve through the flexible electrode.

[0012] Further, the buckle structure includes a buckle slot arranged on the stimulator and a buckle column arranged on the flexible electrode, wherein:

[0013] The buckle slot is electrically connected with the pulse generator, the buckle column is electrically connected with the flexible electrode, and the buckle slot and the buckle column are both conductive, when the buckle column is buckled in the buckle slot, the flexible electrode is electrically connected with the pulse generator.

[0014] Further, the outer surface of the buckle slot is flush with or lower than the outer surface of the shell.

[0015] Further, the flexible electrode includes at least one group, each group includes at least one flexible electrode serving as an anode and at least one flexible electrode serving as a cathode, and the anode and the cathode in the group are used to target different positions of the median nerve or the ulnar nerve;

[0016] When the anode and the cathode in the group are in contact with and conductive to different positions of the median nerve or the ulnar nerve at the same time, the anode, the cathode, the median nerve or the ulnar nerve, and the pulse generator are electrically connected to form a conductive path to provide electric stimulation to the median nerve or the ulnar nerve.

[0017] Further, the flexible electrode includes a group, and the group includes two flexible electrodes arranged at intervals along the length direction of the median nerve / ulnar nerve, the two flexible electrodes are used to target different parts of the median nerve / ulnar nerve, and one flexible electrode serves as an anode and the other serves as a cathode.

[0018] When the two flexible electrodes are in contact with and conductive to different parts of the median nerve / ulnar nerve at the same time, the flexible electrode, the median nerve / ulnar nerve, and the pulse generator are electrically connected to form a conductive path to provide electric stimulation to the median nerve / ulnar nerve.

[0019] Further, the flexible electrodes include two groups, the first group includes two flexible electrodes arranged at intervals along the length direction of the median nerve, and the two flexible electrodes of the first group are used to target different parts of the median nerve, and one flexible electrode is used as an anode and the other is used as a cathode;

[0020] The second group includes two flexible electrodes arranged at intervals along the length direction of the ulnar nerve, and the two flexible electrodes of the second group are used to target different parts of the ulnar nerve, and one flexible electrode is used as an anode and the other is used as a cathode.

[0021] Further, each of the flexible electrodes is integrated on the same flexible substrate and is integrated with the flexible substrate.

[0022] Further, the connecting structure clamps and fixes the corresponding flexible electrode on the flexible substrate;

[0023] The connecting structure penetrates the flexible substrate and the corresponding flexible electrode, and the bottom end of the connecting structure is provided with a front piece and a back piece for clamping the flexible electrode and the flexible substrate, and the front piece and the back piece are fixedly connected with the connecting structure, so that the connecting structure, the flexible electrode and the flexible substrate are integrated.

[0024] The present application provides electric stimulation to the median nerve and / or ulnar nerve through the flexible electrode. The flexible electrode has the characteristics of bendability, foldability and ductility, has high skin-friendliness, and has a planar structure without point-like resistance, so that the comfort is high during use. Meanwhile, the flexible electrode is detachably connected with the stimulator, so that the flexible electrode can be replaced after being worn out or damaged, the skin burning caused by heating can be avoided, and the use safety is improved. Therefore, as long as the conductive function is reduced, the new flexible electrode can be replaced in time, the whole machine does not need to be replaced, the overall service life of the stimulator is prolonged, and the use cost is reduced.

[0025] In addition, the unit price of the flexible electrode is much lower than that of the metal electrode, and the flexible electrode is very suitable for use as a consumable. Meanwhile, since the attack of migraine is intermittent, the electric stimulation function can be turned off and the flexible electrode can be removed and stored during the period without attack of migraine and without electric stimulation function, so that unnecessary wear is reduced, the service life of the flexible electrode is prolonged, and the use cost is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic diagram of a wrist-wearing device for treating or preventing headache in an embodiment of the present application when the stimulator and the flexible electrode are separated;

[0027] Figure 2 It is a whole structure schematic diagram of a wrist-wearing device for treating or preventing headache in an embodiment of the present application Figure 1 ;

[0028] Figure 3 This is a schematic diagram of the overall structure of the back of a wrist-worn device for treating or preventing headaches, according to one embodiment of this application. Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the overall structure of the back of a wrist-worn device for treating or preventing headaches, according to one embodiment of this application. Figure 3 ;

[0030] Figure 6 This is a schematic diagram of a portion of the structure of a wrist-worn device for treating or preventing headaches (excluding flexible electrodes) according to an embodiment of this application;

[0031] Figure 7 This is a front view (excluding flexible electrodes) of a portion of the structure of a wrist-worn device for treating or preventing headaches according to an embodiment of this application;

[0032] Figure 8 This is a rear view (excluding flexible electrodes) of a portion of a wrist-worn device for treating or preventing headaches according to an embodiment of this application.

[0033] Figure 9 This is a schematic diagram of the overall structure of a flexible electrode in a wrist-worn device for treating or preventing headaches according to an embodiment of this application.

[0034] Figures 1-8 This is a block diagram illustrating the electrical stimulation principle of a wrist-worn device for treating or preventing headaches, as described in one embodiment of this application. Specific Implementation

[0035] The embodiments of this application provide a wrist-worn device for treating or preventing headaches, thereby addressing the technical problems of low comfort and high overall cost of wrist-worn headache treatment devices in the prior art.

[0036] The technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of this application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0037] Figures 1-8 This application illustrates a wrist-worn device for treating or preventing migraines (including migraines, cluster headaches, tension headaches, and other types of headaches) according to an embodiment of the present application. The device is worn on the patient's wrist and achieves the effect of treating or preventing headaches by electrically stimulating the median nerve and / or ulnar nerve on the ventral side of the wrist, and is particularly suitable for migraines.

[0038] like Figures 1-7As shown, the wrist-worn device includes a stimulator 100 and a band 200 connected to the stimulator 100. The band 200 is a sheet-like structure and is used to form an adjustable ring structure, thereby binding and fixing it to the wrist.

[0039] For example, such as Figures 1-8 As shown, the stimulator 100 is connected to a band 200 on each of its opposite sides. The band 200 is a nylon webbing. The free ends of the two bands 200 are respectively provided with a first male hook and loop fastener 210 and a first female hook and loop fastener 220. By adjusting the position of the first male hook and loop fastener 210 and the first female hook and loop fastener 220, an adjustable ring structure can be formed, thereby binding and fixing the stimulator 100 to the wrist.

[0040] Alternatively, in another embodiment of this application, the strap 200 is made of leather or nylon webbing, and the free ends of the two straps 200 are respectively provided with a tenon and a row of positioning holes. By selecting different positions of the positioning holes for the tenon to engage, an adjustable ring structure can also be formed, thereby binding and fixing the stimulator 100 to the wrist.

[0041] Of course, the strap 200 can also be formed into an adjustable ring structure through other structures, which is not limited here. For example, it can also be a magnetic structure; or, the strap 200 itself is a single-loop woven structure, which can be put on by pulling through the weaving process and elastic material (that is, the strap 200 is or is partly an elastic ring, which can be stretched to fit on the wrist, and the ring shrinks under its own elasticity to fit tightly on the wrist).

[0042] like Figure 9 As shown, the stimulator 100 includes a housing 110, the cross-sectional shape of which can be any shape such as square, rectangular, or circular. The housing 110 is used to house and protect internal components (such as pulse generator 400, power supply 500, controller, communication components, etc.) located within the housing 110, and to house external components (such as display screen, data / power port 150, switch button 130, intensity adjustment key 140, etc.) located on the outer wall of the housing 110.

[0043] like Figures 1-5 As shown, the pulse generator 400 is electrically connected to the power supply 500 to generate an electrical pulse.

[0044] The pulse generator 400 is electrically connected to the controller and is used to execute control commands. The controller is signal-connected to the pulse generator 400. The controller can control the start and stop of the pulse generator 400 and generate electrical pulses of predetermined duration, predetermined frequency and predetermined width according to the control commands input by the user.

[0045] For example, the pulse generator 400 provides an electric pulse frequency of 40-100 Hz, an electric pulse width of 300 μs, and an electric current intensity of 10-30 mA, wherein the electric current intensity for children is 10-15 mA and the electric current intensity for adults is 15-30 mA. The electric pulse with the above parameters can achieve a safe and effective treatment with less side effects and high tolerance. Of course, the wristband device can also be used for treatment according to other working modes or parameters, which are not limited herein.

[0046] The communication component is used to connect the controller and an external terminal device (such as a mobile phone, a tablet, a computer, etc.) to realize the communication between the external terminal device and the wristband device. For example, the controller can communicate with an external computing device through the communication component (such as wireless communication) to update software and / or parameters and / or read data. For another example, the working parameters of the wristband device can be obtained on a mobile phone based on the communication component, or the wristband device can be controlled by inputting control instructions through the mobile phone.

[0047] The wristband device described in the embodiments of the present application can be used independently. For example, the shell 110 is provided with one or more buttons, a display screen, a dial and / or a keyboard for a user to input control instructions. The display screen (touch display screen), buttons, dials and / or keyboards are in communication connection with the controller and can be used by the user to input control instructions. The display screen can display the working state feedback of the wristband device to the user, and can also be used by the user to view the display content of other functions, such as time, weather, heart rate, sleep state, blood pressure, oxygen saturation, etc.

[0048] The wristband device described in the embodiments of the present application can also be applied in combination with other smart devices, which can be a personal computer, a notebook computer, a smart phone, a tablet computer, a smart speaker, a smart television, a smart vehicle device, etc. The smart device has an application program that allows communication with the wristband device and acts as a controller.

[0049] Of course, in some embodiments, the wristband device described in the embodiments of the present application can be integrated with a smart watch, such as an Apple watch or an Android-based smart watch. The smart watch provides a watchband as the band body 200 and a watch dial as the stimulator 100 for the wristband device.

[0050] The power source 500 can be a disposable dry cell battery, a rechargeable battery, or a combination of both. Disposable batteries are replaceable, while rechargeable batteries require a charging interface. For example, in some embodiments, the wrist-worn device may have a data / power port 150, such as a USB port, which allows the user to charge the power source 500, update software and / or parameters on the microcontroller, and / or read data from the controller's storage unit. The controller can communicate with an external computing device via the data port to update software and / or parameters and / or read data.

[0051] In addition, to facilitate quick operation by the user, a switch button 130 can be provided on one side of the wrist-worn device. The switch button 130 is connected to the controller, so that the user can quickly start or stop the wrist-worn device, thereby turning the stimulator 100 on or off.

[0052] In addition, to facilitate user adjustment of electrical stimulation intensity, an intensity adjustment key 140 can be provided on one side of the wrist-worn device. The intensity adjustment key 140 is connected to the controller, so that the user can input control commands to the controller. The controller generates electrical pulses of a predetermined frequency and a predetermined width based on the control commands, thereby adjusting the electrical stimulation intensity.

[0053] like Figures 1-8 As shown, the outer shell 110 is equipped with a flexible electrode 320, which can be electrically connected to the pulse generator 400. This allows the flexible electrode 320 to provide electrical stimulation to the median nerve and / or ulnar nerve on the wrist, transmitting the electrical pulses generated by the stimulator 100 to a pathway formed sequentially by the median nerve (or ulnar nerve) at the wrist, the spinal nerve, the trigeminal nerve cervical complex, the thalamus, and the cerebral cortex. This pathway shares a common integrative center (the thalamus) and a common convergent endpoint (the cerebral cortex) with the neural conduction pathway for headaches (formed sequentially by the trigeminal nerve, trigeminal nucleus, brainstem trigeminothalamic tract, thalamus, and cerebral cortex). Therefore, stimulating the median nerve and / or ulnar nerve on the wrist triggers conditioned pain modulation (CPM), a major neural mechanism for inhibiting headaches and other endogenous pain in humans. This can achieve pain relief and long-term prevention of migraines, significantly reducing the disease burden and improving the quality of life for headache patients.

[0054] Due to the appearance of the wrist-worn device similar to a watch or a wrist-worn device, the patient wears it on the wrist daily, like a common watch, the stimulator 100 is located on the back side of the wrist, when it is needed to be used for treatment and prevention of headache, the stimulator 100 is moved to the abdominal side of the wrist, and the stimulator 100 is turned on, which is convenient to use, can be used anytime and anywhere, and is light and easy to carry. Due to the appearance of the wrist-worn device similar to a watch or a wrist-worn device, it has good concealment and is convenient for the patient's privacy protection.

[0055] At the same time, due to the flexible electrode 320 having the characteristics of bendable, foldable and ductile, high skin-friendliness, and a planar structure without a point-like resistance feeling, the comfort level is high during use, and the discomfort feeling caused by the use of metal electrodes in the prior art is effectively solved.

[0056] Further, the flexible electrode 320 is detachably connected with the stimulator 100 through the connecting structure, so that when the flexible electrode 320 is worn or damaged, it can be replaced, and when the conductive performance of the flexible electrode 320 decreases, a new flexible electrode 320 can be replaced in time to avoid skin burning caused by heating and improve the use safety. As long as the conductive function is replaced in time, the new flexible electrode 320 can be replaced without the need for whole machine replacement, which prolongs the overall service life of the stimulator 100 and reduces the overall use cost. In addition, the unit price of the flexible electrode 320 is much lower than that of the metal electrode, which is very suitable for use as consumables. At the same time, since the onset of migraine is intermittent, when the migraine does not occur and the electric stimulation function is not needed, the electric stimulation function can be turned off and the flexible electrode 320 can be removed for storage, so as to reduce unnecessary wear and tear, thereby prolonging the service life of the flexible electrode 320 and further reducing the use cost.

[0057] For example, in an embodiment of the present application, as shown in Figure 8 The flexible electrode 320 is snap-connected with the stimulator 100, which is very convenient to assemble and disassemble.

[0058] Specifically, the housing 110 is fixedly provided with a buckle groove 120, the buckle groove 120 is electrically connected with the pulse generator 400, the flexible electrode 320 is provided with a clamping column 310 which can be buckled and fixed with the buckle groove 120, the clamping column 310 is electrically connected with the flexible electrode 320, and the clamping column 310 and the buckle groove 120 belong to the above-mentioned connecting structure.

[0059] The buckle slot 120 and the clamping column 310 are made of conductive material, such as copper, aluminum, etc. When the clamping column 310 is buckled into the buckle slot 120, the flexible electrode 320 is fixed on the shell 110 and is in conduction with the pulse generator 400; when the clamping column 310 is pulled out of the buckle slot 120, the flexible electrode 320 is separated from the shell 110 and can be replaced. The conductive buckle slot 120 and the clamping column 310 can realize the detachable connection between the flexible electrode 320 and the stimulator 100 in physics and can realize the electrical connection between the flexible electrode 320 and the stimulator 100, so that the overall structure is compact.

[0060] In addition, the buckle slot 120 is arranged on the shell 110, and the buckle slot 120 is recessed in the shell 110 or the outer surface of the buckle slot 120 is flush with or substantially flush with the outer surface of the shell 110. When the flexible electrode 320 is buckled on the buckle slot 120, the overall flatness can be ensured, so that the flexible electrode 320 can be fully aligned and contacted with the target nerve, the electrical stimulation effect is ensured, and after the flexible electrode 320 is removed, the smoothness of the surface of the stimulator 100 in contact with the skin is ensured, so that the comfort of wearing the wrist-worn device after the flexible electrode 320 is removed is improved.

[0061] In another embodiment of the present application, the flexible electrode 320 is bonded to the shell 110. For example, the shell 110 and the flexible electrode 320 are respectively provided with a second male magic tape and a second female magic tape, and the fixation and detachment of the flexible electrode 320 on the shell 110 are realized by the bonding and separation of the second male magic tape and the second female magic tape. Of course, an electrical conduction structure between the flexible electrode 320 and the pulse generator 400 when the flexible electrode 320 is fixed on the shell 110 is also required, such as a conductive column or other conductive structure arranged on the shell 110 corresponding to the position of the flexible electrode 320. When the flexible electrode 320 is fixed on the shell 110 by the bonding of the second male magic tape and the second female magic tape, the conductive column just touches and electrically connects with the flexible electrode 320.

[0062] In this embodiment, in order to improve the comfort of wearing the wrist-worn device after the flexible electrode 320 is removed, an auxiliary sheet can be additionally provided. One side of the auxiliary sheet is provided with the same magic tape as the flexible electrode 320, and the other side is used to contact the skin and can be kept smooth and soft. In this way, after the flexible electrode 320 is removed, the auxiliary sheet can be replaced.

[0063] Of course, the flexible electrode 320 and the housing 110 can also be connected by other detachable connection methods, which is not limited here. For example, a threaded connection hole can be provided on the housing 110, and a threaded connection post can be provided on the flexible electrode 320. The flexible electrode 320 and the housing 110 can be screwed together and fixed by the threaded connection post and the threaded connection hole. Both the threaded connection post and the threaded connection hole are made of conductive material, which can realize the electrical connection between the flexible electrode 320 and the pulse generator 400.

[0064] It should be noted that after the flexible electrode 320 is removed, the stimulator 100 can be turned off by the switch button 130 to avoid leakage of current through structures such as the slot 120, conductive post, and threaded connection hole.

[0065] like Figures 2-4 As shown, the flexible electrode 320 includes at least one group, each group of flexible electrodes 320 including at least one flexible electrode 320 used as an anode and at least one flexible electrode 320 used as a cathode, and the anode and the cathode in the group are used to target different locations of the same wrist nerve (median nerve or ulnar nerve); when the anode and the cathode in the group simultaneously contact and conduct with different locations of the same wrist nerve in the wrist, the anode, the cathode, the median nerve or ulnar nerve, and the pulse generator are electrically connected to form a conductive path, and the median nerve or ulnar nerve receives electrical stimulation.

[0066] Of course, the anode and cathode within the group can also target the median nerve or the ulnar nerve, respectively. The anode, the cathode, the median nerve, the ulnar nerve, and the pulse generator are electrically connected to form a conductive path, and the median nerve and the ulnar nerve receive electrical stimulation.

[0067] For example, in one embodiment of this application, such as ​ As shown, the flexible electrode 320 includes a set of two flexible electrodes 320 arranged at intervals along the length of the median nerve. One flexible electrode 320 is used as an anode and the other flexible electrode 320 is used as a cathode. When the anode and cathode simultaneously contact and conduct with different parts of the median nerve, the anode, cathode, median nerve, and pulse generator 400 are electrically connected to form a conductive path, and the median nerve receives electrical stimulation.

[0068] For example, in another embodiment of this application, the flexible electrode 320 includes a group of two flexible electrodes 320 arranged at intervals along the length of the ulnar nerve, and one flexible electrode 320 is used as an anode and the other flexible electrode 320 is used as a cathode. When the anode and cathode simultaneously contact and conduct with different parts of the ulnar nerve, the anode, cathode, ulnar nerve and pulse generator 400 are electrically connected to form a conductive path, and the ulnar nerve receives electrical stimulation.

[0069] For example, in another embodiment of the present application, the flexible electrode 320 includes two groups, a first group and a second group. The two flexible electrodes 320 of the first group are arranged along the length direction of the median nerve, and one of the two flexible electrodes 320 is used as an anode and the other is used as a cathode. When the anode and the cathode of the first group are in contact with different parts of the median nerve at the same time and are connected, an electrically conductive path is formed by the anode, the cathode, the median nerve, and the pulse generator 400, and the median nerve receives electrical stimulation. The two flexible electrodes 320 of the second group are arranged along the length direction of the ulnar nerve, and one of the two flexible electrodes 320 is used as an anode and the other is used as a cathode. When the anode and the cathode of the second group are in contact with different parts of the ulnar nerve at the same time and are connected, an electrically conductive path is formed by the anode, the cathode, the ulnar nerve, and the pulse generator 400, and the ulnar nerve receives electrical stimulation. In this embodiment, the median nerve and the ulnar nerve receive electrical stimulation at the same time.

[0070] Of course, in the above embodiment, any anode can also be provided with two or more flexible electrodes 320, and any cathode can also be provided with two or more flexible electrodes 320, to enhance the conduction efficiency and improve the stimulation effect.

[0071] Any of the flexible electrodes 320 is used to target and connect the median nerve or the ulnar nerve, and any of the flexible electrodes 320 is provided with a clamping column 310, a threaded connecting column, or other conductive structure to be electrically connected to the pulse generator 400.

[0072] Further, the flexible electrodes 320 are integrated on a flexible substrate 330 to form a flexible electrode 320 assembly 300, so that the flexible electrodes 320 are integrated as a whole and are replaced as a whole, which is more convenient.

[0073] The bottom end of the clamping column 310 clamps and fixes the corresponding flexible electrode 320 on the flexible substrate 330.

[0074] The bottom end of the clamping column 310 passes through the flexible substrate 330 and the corresponding flexible electrode 320, and the bottom end of the clamping column 310 is respectively provided with a front piece and a rear piece for clamping the flexible electrode and the flexible substrate 330, and the front piece and the rear piece are fixedly connected with the clamping column 310, so that the clamping column 310, the flexible electrode 320, and the flexible substrate 330 are integrated as a whole.

[0075] The front sheet and the back sheet are both conductive and electrically connected with the clamping column 310, and the gap between the front sheet and the back sheet is used to clamp the flexible substrate 330 and the corresponding flexible electrode 320, so that the contact area between the clamping column 310 and the corresponding flexible electrode 320 is increased, and the fixing strength of the clamping column 310 on the flexible electrode 320 is improved.

[0076] Further, at least one side edge of the flexible electrode 320 exceeds the corresponding back sheet, so that the back sheet does not cover the flexible electrode 320, and the stimulation effect is not affected.

[0077] It should be understood that, although the quantity terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the example embodiments.

[0078] In this specification, the orientation terms such as front, back, inner, outer, etc. are defined with respect to the structure shown in the drawings, and are relative concepts, so they can be changed accordingly according to different positions and different use states. Therefore, these or other orientation terms should not be interpreted as limiting terms.

[0079] The above description is only the preferred embodiment of the present application, and is not any form of and substantial limitation of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the method of the present application, some improvements and supplements can also be made, and these improvements and supplements should be considered as the protection range of the present application. For those skilled in the art, without departing from the spirit and scope of the present application, some changes, modifications and equivalent changes can be made according to the above disclosed technical content, which are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above-mentioned embodiments according to the essential technology of the present application are still within the scope of the technical solutions of the present application.

Claims

1. A wrist-worn device for treating or preventing headaches, characterized in that, The wrist-worn device includes a stimulator and a strap connected to the stimulator, the strap being able to secure the stimulator to the wrist; The stimulator includes a housing with flexible electrodes for targeting the median and / or ulnar nerves on the wrist. The stimulator is configured to provide electrical stimulation to the median and / or ulnar nerves via the flexible electrodes, and the flexible electrodes are detachably connected to the stimulator.

2. The wrist-worn device for treating or preventing headaches as described in claim 1, characterized in that, The flexible electrode is detachably connected to the stimulator via a connection structure, the stimulator including a pulse generator for generating electrical pulses; When the flexible electrode is connected to the stimulator via a connection structure, it is electrically connected to the pulse generator to transmit the electrical pulses to the median nerve and / or ulnar nerve via the flexible electrode.

3. A wrist-worn device for treating or preventing headaches as described in claim 2, characterized in that, The connection structure is a snap-fit ​​structure. When the flexible electrode is snapped and fixed on the stimulator, the flexible electrode is electrically connected to the pulse generator through the snap-fit ​​structure so that the electrical pulse is transmitted to the median nerve and / or ulnar nerve through the flexible electrode.

4. A wrist-worn device for treating or preventing headaches as described in claim 3, characterized in that, The snap-fit ​​structure includes a snap groove disposed on the stimulator and a snap post disposed on the flexible electrode, wherein: The buckle slot is electrically connected to the pulse generator, and the locking post is electrically connected to the flexible electrode. Both the buckle slot and the locking post are conductive. When the locking post is locked in the buckle slot, the flexible electrode is electrically connected to the pulse generator.

5. A wrist-worn device for treating or preventing headaches as described in claim 4, characterized in that, The outer surface of the buckle groove is flush with or lower than the outer surface of the outer shell.

6. A wrist-worn device for treating or preventing headaches as described in claim 2, characterized in that, The flexible electrode comprises at least one set, each set comprising at least one flexible electrode serving as an anode and at least one flexible electrode serving as a cathode, wherein the anode and the cathode within the set are used to target different locations of either the median nerve or the ulnar nerve. When the anode and cathode within the group simultaneously contact and conduct with different locations of either the median nerve or the ulnar nerve, the anode, the cathode, the median nerve or the ulnar nerve, and the pulse generator are electrically connected to form a conductive path to provide electrical stimulation to the median nerve or the ulnar nerve.

7. A wrist-worn device for treating or preventing headaches as described in claim 6, characterized in that, The flexible electrode includes a set of two flexible electrodes arranged at intervals along the length of the median nerve / or ulnar nerve. The two flexible electrodes are used to target different parts of the median nerve / or ulnar nerve, and one flexible electrode is used as an anode and the other as a cathode. When the two flexible electrodes simultaneously contact and conduct with different parts of the median nerve / or ulnar nerve, the flexible electrodes, the median nerve / or ulnar nerve, and the pulse generator are electrically connected to form a conductive path to provide electrical stimulation to the median nerve / or ulnar nerve.

8. A wrist-worn device for treating or preventing headaches as described in claim 6, characterized in that, The flexible electrode comprises two sets. The two flexible electrodes of the first set are arranged at intervals along the length of the median nerve. The two flexible electrodes of the first set are used to target different parts of the median nerve, and one flexible electrode is used as an anode and the other as a cathode. The two flexible electrodes in the second group are spaced apart along the length of the ulnar nerve. The two flexible electrodes in the second group are used to target different parts of the ulnar nerve, and one flexible electrode is used as an anode and the other as a cathode.

9. A wrist-worn device for treating or preventing headaches as described in claim 6, characterized in that, Each of the flexible electrodes is integrated on the same flexible substrate and is connected to the flexible substrate as a whole.

10. A wrist-worn device for treating or preventing headaches as described in claim 9, characterized in that, The connection structure clamps and fixes the corresponding flexible electrode onto the flexible substrate; The connecting structure passes through the flexible substrate and the corresponding flexible electrode, and the bottom end of the connecting structure is provided with a front piece and a rear piece for clamping the flexible electrode and the flexible substrate. The front piece and the rear piece are fixedly connected to the connecting structure, so that the connecting structure, the flexible electrode and the flexible substrate are solidified into one.

Images