Wearable device for treating or preventing headache

Abstract

The invention discloses a wearable device for treating or preventing headache, which comprises a stimulator and a flexible fixing piece connected with the stimulator, and the flexible fixing piece can fix the stimulator on the wrist, the head or the upper arm; the first electrode is used for targeting wrist nerves on the wrist, and the stimulator is configured to provide electrical stimulation for the wrist nerves on the wrist through the first electrode; the second electrode is used for targeting frontal nerves of the head or sensory nerve C-type fibers on the upper arms, and the stimulator is configured to provide electrical stimulation for the frontal nerves of the head or the sensory nerve C-type fibers on the upper arms through the second electrode; the wearable device can be worn on the wrist, the head or the upper arm, so that a patient can freely select the wearing position according to the current use occasion and preference, the use requirements of the patient in various use scenarios can be met, the wearable device is convenient to carry daily, the use convenience of the headache treatment instrument is greatly improved, and more choices are provided for a user.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment or electronic equipment, and in particular to a wearable device for treating or preventing headaches. Background Art

[0002] Migraine is a type of headache. Currently, the main method for treating migraine is drug therapy. However, due to its side effects and limited efficacy, drug therapy cannot meet the needs of the majority of headache patients. Wearable headache treatment devices have come into being.

[0003] Wearable headache treatment devices can provide electrical stimulation to human nerves, triggering the conditioned pain modulation (CPM) mechanism, which can achieve analgesic treatment and long-term prevention of migraine. Among them, conditioned pain modulation is an endogenous pain inhibition mechanism, which refers to the phenomenon that persistent pain in a certain part of the body can inhibit the pain perception caused by noxious stimulation in another part, that is, "pain relief".

[0004] Headache treatment devices include head-mounted trigeminal nerve stimulation devices (External Trigeminal Nerve Stimulation Device). When used, the trigeminal nerve stimulation device is worn on the head or forehead. The trigeminal nerve stimulation device stimulates the trigeminal nerve by generating electric current, thereby relieving headaches. It is suitable for relieving dizziness, motion sickness and other head discomforts. Because the stimulation site is close to the brain, common adverse reactions such as drowsiness, fatigue, and insomnia will occur. However, it must be used in a resting state, and the device must be worn on the forehead continuously when used, which is very inconvenient to use in public places. In addition, it is also inconvenient to carry it when going out.

[0005] Headache treatment instruments also include remote electrical neuromodulation instruments. When using it, the patient first fully exposes the upper arm, then ties the instrument to the upper arm, and then controls the instrument to release electric pulses to stimulate the C-type fibers of the sensory nerves in the upper arm to upload to the pain center to achieve the therapeutic effect. Because the stimulation site is far away from the head and the nerve conduction velocity of the C-type fibers of the sensory nerves is slow, the treatment time is long and the onset is slow. Long-term stimulation can cause side effects such as local skin tingling and hyperesthesia. At the same time, the instrument also needs to be used in a resting state and the upper arm needs to be exposed, which is very inconvenient to use in public places. In addition, it is also inconvenient to carry it when going out.

[0006] Headache treatment instruments also include wrist-type headache treatment instruments, which patients can wear on their wrists on a daily basis and use anytime and anywhere. They are lightweight and easy to carry. Moreover, because the wrist-type wearable device resembles a watch or bracelet in appearance, it is highly concealed and will not attract the attention of others when used in public places, which is conducive to protecting the privacy of patients. Compared with the above two treatment methods, although this treatment instrument is farthest from the head, it can directly and accurately stimulate the trunk of the wrist nerves, with fast conduction speed and high efficiency, and can exert a rapid analgesic effect. However, since the effect of treating headaches needs to be achieved by triggering the CPM mechanism, its responsiveness will vary depending on the sensitivity of different populations to the CPM mechanism.

[0007] Headache patients usually have a high frequency of attacks. For example, migraine attacks may occur up to 30 times per month, and cluster headaches may occur up to 8 times a day. Patients may switch between private and public places every day. None of the above-mentioned headache treatment devices can meet the patient's needs to freely choose the stimulation site according to the use occasion. Carrying two or more headache treatment devices on the commute every day is not only costly but also inconvenient to carry.

[0008] Therefore, the headache treatment instruments in the prior art cannot meet the needs of patients in various usage scenarios. Summary of the invention

[0009] The embodiments of the present application provide a wearable device for treating or preventing headaches, so as to solve the technical problem that headache treatment instruments in the prior art cannot meet the needs of patients in various usage scenarios.

[0010] In order to solve the above problems, an embodiment of the present application provides a wearable device for treating or preventing migraine, comprising a stimulator and a flexible fixing member connected to the stimulator, wherein the flexible fixing member can fix the stimulator on a wrist, head or upper arm;

[0011] Also included is a first electrode for targeting a wrist nerve on the wrist, the stimulator being configured to provide electrical stimulation to the wrist nerve on the wrist via the first electrode when the stimulator is fixed on the wrist, wherein the wrist nerve is the median nerve and / or the ulnar nerve;

[0012] It also includes a second electrode for targeting the frontal nerve of the head or the sensory nerve C fibers on the upper arm. The stimulator is configured to provide electrical stimulation to the frontal nerve via the second electrode when the stimulator is fixed on the head, and to provide electrical stimulation to the sensory nerve C fibers on the head via the second electrode when the stimulator is fixed on the upper arm, wherein the frontal nerve is the supraorbital nerve and / or the supratrochlear nerve.

[0013] Further, the stimulator includes a housing, and the first electrode and the second electrode may be at least partially exposed from the housing to contact the wrist nerve on the wrist, the frontal nerve on the head, or the sensory nerve C fiber on the upper arm;

[0014] A pulse generator for generating electrical pulses is disposed in the housing, and the pulse generator may be connected to the first electrode or the second electrode;

[0015] When the first electrode contacts and conducts with the wrist nerve on the wrist, the electrical pulse can be transmitted to the wrist nerve on the wrist via the first electrode, thereby forming electrical stimulation;

[0016] When the second electrode contacts and conducts with the frontal nerve of the head or the sensory nerve C fibers on the upper arm, the electrical pulse can be transmitted to the frontal nerve of the head or the sensory nerve C fibers on the upper arm through the second electrode, thereby forming electrical stimulation.

[0017] Furthermore, the first electrode is fixed on the stimulator, and the second electrode is detachably connected to the stimulator.

[0018] Further, the first electrode is electrically connected to the stimulator;

[0019] The first electrodes include at least one group, each group includes at least one first electrode used as an anode and at least one first electrode used as a cathode, and the anodes and cathodes in the group are respectively used to target different positions of the wrist nerves;

[0020] When the anode and the cathode in the group simultaneously come into contact with different positions of the wrist nerve and conduct, the stimulator, the anode, the cathode and the wrist nerve are electrically connected to form a conductive path for conducting electrical pulses.

[0021] Furthermore, the second electrode is a flexible electrode.

[0022] Furthermore, the second electrode is detachably connected to the first electrode on the stimulator via a connecting structure;

[0023] When the second electrode is connected to the first electrode through a connecting structure, it is electrically connected to the stimulator through the first electrode to transmit the electric pulses generated by the stimulator to the frontal nerve of the head or the C fibers of the sensory nerves on the upper arm through the second electrode, thereby forming electrical stimulation.

[0024] Furthermore, the connection structure is a buckle structure, and the buckle structure includes a buckle groove arranged on the first electrode and a clamping column arranged on the second electrode, wherein:

[0025] The buckle slot is electrically connected to the first electrode, the clamping column is electrically connected to the second electrode, and both the buckle slot and the clamping column are conductive. When the clamping column is clamped in the buckle slot, the second electrode is electrically connected to the pulse generator via the first electrode.

[0026] Furthermore, the flexible fixing member includes an adhesive tape arranged around the stimulator, and the back side of the adhesive tape can be adhered and fixed on the wrist, head or upper arm.

[0027] Furthermore, the adhesive tape can be detachably connected to the back side of the stimulator, and a window for exposing the first electrode is provided on the adhesive tape, and the window is for the first electrode to pass through.

[0028] Furthermore, the flexible fixing member includes a flexible belt, which can be surrounded by a ring structure with an adjustable circumference, and the circumference of the ring structure can be locked so as to be tightly fitted on the wrist, head or upper arm.

[0029] Furthermore, the flexible belt is detachably connected to the stimulator.

[0030] Further, the flexible belt comprises a first belt body and a second belt body which are arranged opposite to each other on both sides of the stimulator, wherein:

[0031] The inner end of the first belt body and the inner end of the second belt body are respectively connected to the stimulator, and the first belt body and the second belt body can form the ring structure with adjustable circumference, and the circumference of the ring structure can be locked.

[0032] Furthermore, the front side of the first belt body and the front side of the second belt body are respectively provided with Velcro fur surfaces extending along their own length directions, and the back side of the outer end of the second belt body is provided with Velcro hook surfaces;

[0033] The Velcro hook surface can be bonded and fixed to the Velcro fleece surface at any position, so that the first belt body and the second belt body form the ring structure with adjustable circumference and lockable;

[0034] or:

[0035] The first belt body and the second belt body are respectively provided with a first magnet extending along the length direction thereof, a second magnet is provided on the back of the outer end of the second belt body, and the first magnet and the second magnet on the second belt body are arranged at staggered positions;

[0036] The second magnet can be magnetically fixed to the first magnet at any position, so that the first belt body and the second belt body form the annular structure with adjustable circumference and lockable.

[0037] Furthermore, a fixing ring is provided on the outer end of the first belt body, the outer end of the second belt body penetrates into the fixing ring, and an anti-slip plug is provided on the outer end of the second belt body to prevent the second belt body from slipping out of the fixing ring.

[0038] Furthermore, the second belt body is longer than the first belt body, and the stimulator is provided with a through hole for the second belt body to penetrate the stimulator along its own length direction.

[0039] Since the wearable device can be worn on the wrist, head or upper arm, when the patient is in a private space and does not need to worry about the attention of others, he or she can choose to wear it on the head or upper arm; when the patient does not need to worry about the attention of others and it is troublesome to expose the upper arm, he or she can choose to wear it on the head; when the patient does not want to attract the attention of others in public or the wearable device is in a non-stimulating treatment state, he or she can choose to wear it on the wrist. The patient can freely choose the wearing position according to the current usage scenario and preference, which can meet the patient's needs in a variety of usage scenarios and is convenient for daily carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A structural explosion of a wearable device for treating or preventing headaches in one embodiment of the present application Figure 1 ;

[0041] Figure 2 A structural explosion of a wearable device for treating or preventing headaches in one embodiment of the present application Figure 2 ;

[0042] Figure 3 A structural explosion of a wearable device for treating or preventing headaches in one embodiment of the present application Figure 3 ;

[0043] Figure 4 This is a partial structural diagram of a wearable device for treating or preventing headaches in one embodiment of the present application;

[0044] Figure 5 A back view of a stimulator of a wearable device for treating or preventing headaches in one embodiment of the present application;

[0045] Figure 6 This is a schematic structural diagram of a stimulator of a wearable device for treating or preventing headaches in one embodiment of the present application;

[0046] Figure 7 This is a schematic diagram of the structure of a second electrode of a wearable device for treating or preventing headaches in one embodiment of the present application;

[0047] Figure 8 A side view of a second electrode of a wearable device for treating or preventing headaches in one embodiment of the present application;

[0048] Fig. 9 This is a structural exploded diagram of a wearable device for treating or preventing headaches in another embodiment of the present application;

[0049] Fig.10 It is a partial front view of a wearable device for treating or preventing headaches in another embodiment of the present application;

[0050] Fig.11 This is a schematic diagram of the partial structure of the back of a wearable device for treating or preventing headaches in another embodiment of the present application. Specific embodiments

[0051] The embodiments of the present application provide a wearable device for treating or preventing headaches, so as to solve the technical problem that headache treatment instruments in the prior art cannot meet the needs of patients in various usage scenarios.

[0052] The technical solution of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0053] Figures 1 to 11 A wearable device for treating or preventing headaches (including migraine, cluster headache, tension headache and other types of headaches or motion sickness, dizziness and other head discomforts) in one embodiment of the present application is shown. The device can be worn on the patient's wrist, head or upper arm, and achieves the effect of treating or preventing headaches by electrically stimulating the wrist nerves on the ventral side of the wrist (the median nerve and / or ulnar nerve in this application), the frontal nerves in the head (the supraorbital nerve and / or supratrochlear nerve in this application) or the C fibers of the sensory nerves in the upper arm. The device is particularly suitable for migraine.

[0054] Since the wearable device can be worn on one of the wrist, head, and upper arm, when the patient is in a private space and does not need to worry about the attention of others, he or she can choose to wear it on the head or upper arm; when the patient does not need to worry about the attention of others and it is troublesome to expose the upper arm, he or she can choose to wear it on the head; when the patient does not want to attract the attention of others in public or the wearable device is in a non-stimulating treatment state, he or she can choose to wear it on the wrist. In this way, the wearing position of the wearable device can be flexibly selected to meet the needs of patients in a variety of usage scenarios, and it is convenient to carry daily. This application aims to improve the ease of use of headache treatment instruments and provide users with more choices.

[0055] It should be noted that the median nerve and the ulnar nerve are the two main nerves of the upper limbs, which respectively innervate different muscles and sensory areas; for ease of wearing, the wearable device described in the embodiment of the present application acts on the median nerve area and / or the ulnar nerve area on the inner side of the wrist.

[0056] The supraorbital nerve and the supratrochlear nerve are two branches of the first ophthalmic nerve of the trigeminal nerve. They pass through the upper edge of the orbit and are distributed in the frontal sinus mucosa, the conjunctiva and skin of the upper eyelid, the forehead skin and the scalp. For ease of wearing, the wearable device described in the embodiment of the present application acts on the supraorbital nerve and / or supratrochlear nerve area of ​​the forehead.

[0057] Sensory nerve C fibers are a type of nerve fiber in the peripheral nervous system, which are mainly responsible for transmitting pain, temperature and other non-obvious tactile information; for ease of wearing, the wearable device described in the embodiment of the present application mainly acts on the area innervated by the sensory nerve C fibers on the inner side of the upper arm.

[0058] like Figures 1 to 11 As shown, the wearable device includes a stimulator 100 and a flexible fixing member connected to the stimulator 100, and the flexible fixing member can fix the stimulator 100 on the wrist, head or upper arm so that the stimulator 100 fits on the wrist nerve, the frontal nerve of the head or the C-type fiber of the sensory nerve of the upper arm.

[0059] like Figures 1 to 8 As shown, the stimulator 100 includes a shell, and the cross-sectional shape of the shell can be any shape such as square, rectangular, circular, etc. The shell is used to set and protect internal components located in the shell (such as a pulse generator, a power supply, a controller, a communication component, etc.) and to set external components exposed on the outer wall of the shell (such as a display screen 150, a data / power port 130, a switch button 110, an intensity adjustment key 120, etc.).

[0060] The pulse generator is electrically connected to a power source to form an electric pulse. The pulse generator is electrically connected to a controller for executing a control instruction. The controller is connected to the pulse generator signal. The controller can control the start and stop of the pulse generator and generate an electric pulse of a predetermined duration, a predetermined frequency and a predetermined width according to the control instruction input by the user.

[0061] For example, the pulse generator can provide an electric pulse frequency of 40 to 100 Hz, an electric pulse width of 300 μs, and a current intensity of 10 to 30 mA, wherein the current intensity for children is 10 to 15 mA, and the current intensity for adults is 15 to 30 mA. The use of electric pulses under the above parameter indicators for treatment can achieve safe and effective effects with few side effects and high tolerance. Of course, the wearable device can also be used for treatment according to other working modes or working parameters, which are not limited here.

[0062] The communication component is used to connect the controller and the external terminal device (such as a mobile phone, tablet, computer, etc.) to achieve communication between the external terminal device and the wearable device. For example, the controller can communicate with the 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 wearable device are obtained on the external terminal device based on the communication component, or the wearable device is controlled by inputting control instructions through the external terminal device.

[0063] The wearable device described in the embodiment of the present application can be used independently. For example, one or more buttons, a display screen 150, a dial and / or a keyboard for the user to input control instructions are provided on the housing, and the display screen 150 (touch display screen 150), buttons, a dial and / or a keyboard are connected to the controller for communication, and the user can input control instructions. The display screen 150 can display the working status of the wearable device described in the embodiment of the present application and feedback it 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 status, blood pressure, oxygen saturation, etc.

[0064] The wearable device described in the embodiment of the present application can also be used in combination with other smart devices, which can be personal computers, laptops, smart phones, tablet computers, smart speakers, smart TVs, smart car devices, etc. The smart device has an application that allows communication with the wearable device and acts as a controller.

[0065] Of course, in some embodiments, the wearable device described in the embodiments of the present application can be integrated with a smart watch, such as an Apple watch or an Android smart watch. The smart watch provides a strap as a flexible fixing part for the wearable device and a dial as a stimulator 100, etc.

[0066] The power source may be a disposable dry cell or a rechargeable battery, or a combination of the two. The disposable battery is replaceable, and the rechargeable battery requires a reserved charging interface. For example, in some embodiments, the wearable device may have a data / power port 130, such as a USB port, which allows the user to charge the power source, update the software and / or parameters on the microcontroller, and / or read data from the storage unit of the controller. The controller can communicate with an external computing device through the data port to update the software and / or parameters and / or read data.

[0067] In addition, in order to facilitate quick operation by the user, a switch button 110 may be provided on one side of the wearable device, and the switch button 110 is connected to the controller, so that the user can quickly start or turn off the stimulator 100.

[0068] In addition, in order to facilitate the user to adjust the intensity of electrical stimulation, an intensity adjustment key 120 may be provided on one side of the wearable device, and the intensity adjustment key 120 is connected to the controller, so that the user can input control instructions to the controller. The controller generates an electric pulse of a predetermined frequency and a predetermined width based on the control instruction, thereby adjusting the intensity of electrical stimulation. However, the principle and implementation method of adjusting the intensity of electrical stimulation by the intensity adjustment key 120 can refer to the prior art.

[0069] like Figures 1 to 5 As shown, a first electrode 300 is fixedly provided on the back of the housing, the inner end of the first electrode 300 is electrically connected to the pulse generator, and the outer end is exposed from the housing to contact the wrist nerve on the wrist.

[0070] The first electrode 300 includes at least one group, each group of first electrodes 300 includes at least one first electrode 300 used as an anode and at least one first electrode 300 used as a cathode, and the anode and the cathode in the group are respectively used to target different positions of the wrist nerve (different positions of the same wrist nerve or different wrist nerves); when the anode and the cathode in the group simultaneously collide with different positions of the wrist nerve and are conductive, the anode, the cathode, the wrist nerve, and the pulse generator are electrically connected to form a conductive path, thereby providing electrical stimulation to the wrist nerve.

[0071] For example, in one embodiment of the present application, Figures 2 to 4 As shown, the first electrode 300 includes a group, in which two first electrodes 300 can be arranged at intervals along the length direction of the wrist nerve (for example, along the length direction of the median nerve), and one of the first electrodes 300 is used as an anode and the other first electrode 300 is used as a cathode. When the anode and the cathode simultaneously contact and conduct with different parts of the median nerve or the ulnar nerve, or when the anode and the cathode contact and conduct with the median nerve and the ulnar nerve respectively, the anode, the cathode, the wrist nerve, and the pulse generator are electrically connected to form a conductive path.

[0072] The electric pulse provides electrical stimulation to the median nerve and / or ulnar nerve on the wrist through the first electrode 300, and conducts the electric pulse formed by the stimulator 100 to the pathway formed by the sequential conduction of "median nerve (or ulnar nerve) at the wrist - spinal nerve - trigeminal cervical complex - thalamus - cerebral cortex". This pathway and the neural conduction pathway of headache (formed by "trigeminal nerve - trigeminal nucleus - brainstem trigeminal thalamus - cerebral cortex" in sequence) have a common integration center (i.e. thalamus) and a common collection end point (i.e. cerebral cortex). Therefore, by stimulating the median nerve and / or ulnar nerve on the wrist, the conditioned pain regulation mechanism will be triggered, thereby achieving analgesic treatment and long-term prevention of migraine, and significantly improving the disease burden of headache patients and improving the quality of life.

[0073] Since the wrist-worn device is similar in appearance to a watch or bracelet, patients wear it on their wrists in daily life, just like an ordinary watch. The stimulator 100 is located on the back of the wrist. When it is needed to treat and prevent headaches, the stimulator 100 is moved to the ventral side of the wrist and turned on. It is easy to use and can be used anytime and anywhere. It is light and easy to carry, and has good concealment, which is convenient for protecting the patient's privacy.

[0074] Of course, in the above embodiments, any anode may be provided with two or more first electrodes 300, and any cathode may be provided with two or more first electrodes 300, so as to enhance the conduction efficiency and improve the stimulation effect.

[0075] The second electrode 400 is a flexible electrode, and the second electrode 400 is detachably connected to the first electrode 300, that is, the second electrode 400 is connected to the stimulator 100 via the first electrode 300. In this way, when acting on the wrist, the second electrode 400 can be removed, and when acting on the head or upper arm, the second electrode 400 can be assembled, the space utilization rate is higher, and the whole is more compact and small. Of course, the second electrode 400 can also be directly detachably connected to the shell of the stimulator 100, and the first electrode 300 and the second electrode 400 are switched by the switch to be connected with the stimulator 100, so as to achieve the effect of selecting one of the first electrode 300 and the second electrode 400 for use, which is not limited here.

[0076] In addition, since the flexible electrode has the characteristics of being bendable, foldable and extensible, it has a high skin-friendliness and a planar structure, has no point-like resistance, and is more comfortable to use. In addition, after the flexible electrode is worn or damaged, it can be replaced. When the conductive performance of the flexible electrode decreases, a new flexible electrode can be replaced in time to avoid heating and burning the skin, thereby improving the safety of use, extending the overall service life of the stimulator 100, and reducing the overall cost of use; at the same time, since the onset of migraine is intermittent, when the migraine is not onset and the electrical stimulation function is not needed, the electrical stimulation function can be turned off, and the flexible electrode can be removed and stored separately to reduce unnecessary wear, thereby extending the service life of the flexible electrode and further reducing the cost of use.

[0077] For example, in one embodiment of the present application, the flexible electrode is snap-connected to the first electrode 300, which is very convenient for assembly and disassembly.

[0078] Specifically, a buckle groove 310 is fixedly provided on each of the two first electrodes 300, and the buckle groove 310 is electrically connected to the pulse generator. The flexible electrode is provided with a clamping column 410 that can be buckled and fixed with the buckle groove 310, and the clamping column 410 is electrically connected to the flexible electrode. The clamping column 410 and the buckle groove 310 belong to a connection structure.

[0079] The buckle slot 310 and the clamping column 410 are both made of conductive materials, such as metal copper, aluminum, etc. When the clamping column 410 is buckled into the buckle slot 310, the flexible electrode is fixed on the housing and is connected to the pulse generator; when the clamping column 410 is pulled out of the buckle slot 310, the flexible electrode is separated from the housing, and the flexible electrode can be replaced. The conductive buckle slot 310 and the clamping column 410 can realize both the physically detachable connection between the flexible electrode and the stimulator 100 and the electrical connection between the flexible electrode and the stimulator 100, making the overall structure compact.

[0080] In addition, the buckle groove 310 is arranged on the first electrode 300, and the buckle groove 310 is recessed in the first electrode 300 or the outer surface of the buckle groove 310 is flush or approximately flush with the outer surface of the first electrode 300. This can ensure that the flexible electrode is overall flat when it is buckled on the first electrode 300, thereby facilitating the flexible electrode to fully align and contact the targeted nerve and ensure the electrical stimulation effect of the second electrode 400. After the flexible electrode is removed, the smoothness of the side of the first electrode 300 in contact with the skin can be ensured, thereby improving the comfort of wearing the wrist-worn device after the flexible electrode is removed.

[0081] When the wearable device is worn on the head, electric pulses are emitted to stimulate the frontal nerve through the second electrode 320. When the frontal nerve merges into the trigeminal nerve, the electric pulses emitted by the frontal nerve are uploaded to the trigeminal nerve nucleus, directly stimulating and regulating the trigeminal nerve nucleus, thereby directly regulating the excitability of the trigeminal nerve nucleus during a migraine attack, thereby achieving the therapeutic effect of suppressing the attack of a migraine.

[0082] Similarly, when the wearable device is worn on the upper arm, the electrical pulses are transmitted to the pain nerve C fibers in the upper arm nerves through the second electrode 320, and the pain signals caused by the electrical stimulation are transmitted upward to the pain centers of the thalamus and cerebral cortex, ultimately triggering the endogenous pain inhibition mechanism - the conditioned pain modulation (CPM) effect, thereby achieving the effect of analgesic treatment for migraine.

[0083] Of course, the buckle groove 310 can also be directly set on the shell, for example, the buckle groove 310 is set on the shell between the two first electrodes 300, and the buckle groove 310 is directly electrically connected to the pulse generator, that is, the flexible electrode is directly electrically connected to the pulse generator through the buckle groove 310 and the clamping column 410.

[0084] Of course, the flexible electrode can also be detachably connected to the stimulator in other ways, such as threaded connection, for example, a threaded connection hole is set on the outer shell or the first electrode 300, and a threaded connection column is set on the flexible electrode. The flexible electrode and the outer shell are screwed and fixed through the threaded connection column and the threaded connection hole, and the threaded connection column and the threaded connection hole are both made of conductive materials, which can realize the electrical connection between the flexible electrode and the pulse generator.

[0085] Of course, the second electrode may also be other electrodes, such as a metal electrode, etc., which is not limited here.

[0086] Furthermore, two ends of the clamping column 410 are clamped and fixed on the front and back surfaces of the flexible electrode.

[0087] Among them, the bottom end of the clamping column 410 passes through the flexible electrode, and the bottom end of the clamping column 410 is respectively provided with a front piece and a rear piece for clamping the front and back sides of the flexible electrode, and the front piece and the rear piece are fixedly connected to the clamping column 410, so that the clamping column 410 and the flexible electrode are fixed as one.

[0088] In addition to the electrical connection between the card column 410 itself and the flexible electrode, the front piece and the rear piece are both conductive and electrically connected to the card column 410, thereby enhancing the connection effect between the card column 410 and the flexible electrode. The front piece and the rear piece increase the contact area with the flexible electrode, thereby improving the physical fixing strength of the card column 410 on the flexible electrode.

[0089] Furthermore, at least one side edge of the flexible electrode exceeds the corresponding rear sheet to prevent the rear sheet from safely covering the flexible electrode and affecting the stimulation effect.

[0090] The wrist circumference of an average adult is 13 to 20 cm, the head circumference is 54 to 58 cm, and the upper arm circumference is 20 to 35 cm. The wearable device of the embodiment of the present application is to be worn on the head, upper arm and wrist with large differences in circumference, and the flexible fixing part must have good adaptability and / or adjustability. Among them, the flexibility of the flexible fixing part refers to the ability to flexibly change shape according to the body part, so as to better fit the wrist, head or upper arm.

[0091] For example, in one embodiment of the present application, Figures 9-11 As shown, the flexible fixing member is an adhesive tape 230 arranged around the stimulator, and the back of the adhesive tape 230 is sticky and can be adhered and fixed on the wrist, head or upper arm. The adhesive fixation has strong adaptability, and there is no need to consider the dimensional differences of the head, upper arm and wrist. The adhesive tape 230 itself is flexible and can fit the curvature of the wrist, head or upper arm well, and can effectively fix the stimulator to fit on the stimulation site.

[0092] Furthermore, the adhesive tape 230 is relatively arranged on both sides of the stimulator 100, so as to bond and fix the stimulator 100 to the wrist, head or upper arm from the left and right sides, which has a good fixing effect, reduces the bonding area, and improves wearing comfort. Of course, the adhesive tape 230 can also be arranged in two or more pairs, or a full circle is arranged along the periphery of the stimulator 100 to enhance the fixing effect.

[0093] Furthermore, the adhesive tape 230 is made of silicone gel, which can be reliably adhered to the skin and is easy to remove and reposition without causing damage to the skin or discomfort due to adhesion, and can be repeatedly adhered and used.

[0094] In addition, to facilitate the replacement of the adhesive tape 230, the adhesive tape 230 can be detachably connected to the back of the stimulator 100. For example, a Velcro hook surface is provided on the back of the stimulator 100 housing, and a Velcro fur surface is provided on the adhesive tape 230. The stimulator 100 and the adhesive tape 230 are detachably connected by Velcro bonding, and a window for exposing the first electrode 300 is provided on the adhesive tape. The window is for the first electrode 300 to pass through so as not to affect the first electrode 300 from contacting the wrist nerve.

[0095] In another embodiment of the present application, Figures 1 to 4As shown, the flexible fixing member is a flexible belt, such as a silicone belt, a leather belt or a nylon webbing, etc. The flexible belt can be surrounded by a ring structure with an adjustable circumference, and the circumference of the ring structure can be locked to be tightly wrapped around the wrist, head or upper arm, so that the stimulator 100 is bound to the wrist, head or upper arm. In this way, the size of the ring structure can be adjusted to adapt to wrists, heads or upper arms of different thicknesses. For example, the circumference of the ring structure can range from 10 to 65 cm to cover the wrist circumference, head circumference and upper arm circumference of an average person.

[0096] The flexible belt includes a first belt body 210 and a second belt body 220 which are relatively arranged on both sides of the stimulator 100, wherein the inner end of the first belt body 210 and the inner end of the second belt body 220 are respectively connected to the stimulator 100, and the first belt body 210 and the second belt body 220 can be surrounded to form a ring structure that is tightly wrapped around the wrist, head or upper arm, and the circumference of the ring structure is adjustable and lockable.

[0097] For example, the front of the first belt body 210 and the front of the second belt body 220 are Velcro fleece surfaces respectively, and the back of the outer end of the second belt body 220 is provided with a Velcro hook surface 222, and the Velcro hook surface 222 can be bonded and fixed with the Velcro fleece surface. In this way, when the Velcro hook surface 222 on the second belt body 220 is bonded with the Velcro fleece surface on the front of the first belt body 210 or the Velcro fleece surface on the front of the second belt body 220, ring structures of different sizes are formed, so as to adapt to the wrist, head or upper arm.

[0098] When the wearable device is worn on the head, the stimulator 100 is aimed at the frontal nerve, and the first belt body 210 and the second belt body 220 are wrapped along the head, the second belt body 220 is tightened, and the Velcro hook surface 222 on the back of the second belt body 220 is bonded to the Velcro fleece surface, so that the first belt body 210 and the second belt body 220 form a ring structure that can be tied and fixed on the head; because the head is relatively large, the Velcro hook surface 222 on the back of the second belt body 220 will bond to the Velcro fleece surface on the first belt body 210.

[0099] When the wearable device is worn on the wrist, the stimulator 100 is aimed at the wrist nerve, and the first belt body 210 and the second belt body 220 are wrapped along the wrist, the second belt body 220 is tightened, and the Velcro hook surface 222 on the back of the second belt body 220 is bonded to the Velcro fleece surface, so that the first belt body 210 and the second belt body 220 form a ring structure that can be tied and fixed on the wrist; due to the thin wrist, the second belt body 220 may be wrapped around the wrist multiple times, and finally, the Velcro hook surface 222 on the back of the second belt body 220 will adhere to the Velcro fleece surface on the front of the second belt body 220 that has been wrapped around the wrist.

[0100] When the wearable device is worn on the upper arm, the stimulator 100 is aligned with the skin on the inner side of the upper arm (the area innervated by the C-fibers of the sensory nerve), and the first belt body 210 and the second belt body 220 are wrapped along the upper arm, the second belt body 220 is tightened, and the Velcro hook surface 222 on the back of the second belt body 220 is attracted to the Velcro fleece surface, so that the first belt body 210 and the second belt body 220 form a ring structure that can be bound and fixed on the upper arm; since the thickness of the upper arm is moderate, the Velcro hook surface 222 on the back of the second belt body 220 may adhere to the Velcro fleece surface on the first belt body 210 or the Velcro fleece surface on the second belt body 220 due to the different thicknesses of the upper arm.

[0101] Alternatively, the first belt body 210 and the second belt body 220 are provided with a first magnet extending along the length direction thereof, and a second magnet is provided on the back of the outer end of the second belt body 220, wherein the setting position of the first magnet on the second belt body 220 and the setting position of the second magnet are staggered, and the second magnet can be fixed by magnetic attraction with the first magnet. In this way, when the second magnet on the second belt body 220 is attracted to the first magnet on the first belt body 210 or the first magnet on the second belt body 220 is attracted to, annular structures of different sizes are formed, so as to adapt to the wrist, head or upper arm.

[0102] In this way, when the wearable device is worn on the head, the stimulator 100 is aimed at the frontal nerve, and the first belt body 210 and the second belt body 220 are wrapped along the head, the second belt body 220 is tightened, and the second magnet on the back of the second belt body 220 is attracted to the first magnet, so that the first belt body 210 and the second belt body 220 form a ring structure that can be tied and fixed on the head; because the head is larger, the second magnet on the back of the second belt body 220 will be attracted to the first magnet on the first belt body 210.

[0103] When the wearable device is worn on the wrist, the stimulator 100 is aimed at the wrist nerve, and the first belt body 210 and the second belt body 220 are wrapped along the wrist, the second belt body 220 is tightened, and the second magnet on the back of the second belt body 220 is attracted to the first magnet, so that the first belt body 210 and the second belt body 220 form a ring structure that can be tied and fixed on the head; because the wrist is thin, the second belt body 220 may be wrapped around the wrist multiple times, and finally, the second magnet on the back of the second belt body 220 will be attracted to the first magnet on the second belt body 220 that has been wrapped around the wrist.

[0104] When the wearable device is worn on the upper arm, the stimulator 100 is aligned with the skin on the inner side of the upper arm (the area innervated by the C-type fibers of the sensory nerve), and the first belt body 210 and the second belt body 220 are wrapped along the upper arm, the second belt body 220 is tightened, and the second magnet on the back of the second belt body 220 is attracted to the first magnet, so that the first belt body 210 and the second belt body 220 form a ring structure that can be bound and fixed on the upper arm; since the upper arm is of moderate thickness, the second magnet on the back of the second belt body 220 may be attracted to the first magnet on the first belt body 210 or the first magnet on the second belt body 220 due to the different thicknesses of the upper arm.

[0105] It should be noted that in the embodiments of the present application, the back side refers to the side facing the patient's skin when worn, and the front side refers to the side facing outwards when worn.

[0106] In the above embodiment, the length of the second strap 220 is longer than the first strap 210. The length of the first strap 210 is 8 to 12 cm, and the length of the second strap 220 is 50 to 60 cm. In this way, when worn on the wrist, it is only necessary to wrap the second strap 220 around the wrist multiple times. The length of the first strap 210 is less than the dimension of an adult's wrist and does not need to be wrapped multiple times, which is convenient for wearing.

[0107] In the above embodiment, a fixing ring 211 is provided on the outer end of the first belt body 210, and the outer end of the second belt body 220 is inserted into the fixing ring 211, and an anti-slip plug 221 is provided on the outer end of the second belt body 220 to prevent the second belt body 220 from slipping out of the fixing ring 211, thereby avoiding the first belt body 210 and the second belt body 220 from being accidentally completely separated, reducing the risk of the wearable device falling off the patient; at the same time, the first belt body 210 and the second belt body 220 have consistent movements through the restraining effect of the anti-slip plug 221 and the fixing ring 211. By pulling the second belt body 220 along the fixing ring 211, the first belt body 210 and the second belt body 220 can be pulled synchronously, and the size of the ring structure can be adjusted, which is easy to operate, and the second belt body 220 presses the outer end of the first belt body 210 to avoid the outer end of the first belt body 210 turning outward from the first belt body 210, making it more convenient to wear with one hand.

[0108] In the above embodiment, the housing is provided with a through hole 140 for the second belt 220 to pass through the housing along its own length direction, so that when the wearable device is worn on the wrist, the second belt 220 that needs to be wrapped around the wrist multiple times can pass through the through hole 140 to avoid covering the display screen 150 on the front of the stimulator 100. Of course, the width of the second belt 220 and the through hole 140 is narrower than that of the stimulator 100, and there is still enough space in the housing to arrange other components.

[0109] In addition, the wearable device in some embodiments of the present application may also adopt a combination of an adhesive tape 230 and a flexible tape, that is, the stimulator 100 may be equipped with an adhesive tape 230 and a flexible tape at the same time, and the adhesive tape 230 and the flexible tape are both detachably connected to the stimulator 100. When the stimulator 100 is used on the head and upper arm, the adhesive tape 230 is used to remove the flexible tape; when the stimulator 100 is used on the wrist, the flexible tape is used to remove the adhesive tape 230. However, at this time, since the flexible tape only acts on the wrist, the length does not need to be too long, and the length of the first belt body 210 is 8 to 12 cm, and the length of the second belt body 220 is 10 to 15 cm.

[0110] The detachable connection between the adhesive tape 230 and the stimulator 100 can refer to the above structure. The detachable connection between the flexible tape and the stimulator 100 can be achieved in one of the following ways, and of course, it can also be achieved in other ways, which are not limited here:

[0111] For example, a fixing ring is provided on both sides of the stimulator 100, and a hook is provided on the inner end of the first belt body 210 and the inner end of the second belt body 220, respectively, and the hook is detachably connected to the fixing ring. Specifically, the hook has a hook body and a closed body rotatably connected to the hook body, and the hook body is hooked on the fixing ring. In a natural state, the closed body and the hook body are enclosed to form a closed ring, so that the first belt body 210 and the second belt body 220 are fixed on the fixing ring, and the closed body is pressed, and the closed body rotates to form a gap with the hook body, so that the first belt body 210 and the second belt body 220 can be removed from the fixing ring.

[0112] Alternatively, the inner end of the first belt body 210 and the inner end of the second belt body 220 are both provided with fastening parts, and the fastening parts include a tenon and a tenon groove. The inner end of the first belt body 210 and the inner end of the second belt body 220 are inserted into the fixing ring and bent, and the bent part and the main body of the first belt body 210 / the second belt body 220 are respectively provided with a tenon and a tenon groove relative to each other. The first belt body 210 and the second belt body 220 are fixed on the fixing ring by fastening and fixing with the tenon and the tenon groove. Under the action of external force, the tenon and the tenon groove are separated, so that the first belt body 210 and the second belt body 220 can be removed from the fixing ring.

[0113] Alternatively, a pair of shaft holes are respectively provided on both sides of the stimulator 100, and a rotating shaft is fixedly passed through the inner end of the first belt body 210 and the inner end of the second belt body 220, respectively. The rotating shaft has a certain degree of deformability, such as a stainless steel rotating shaft. Under the action of external force, the two ends of the rotating shaft can be respectively inserted into a pair of shaft holes on the same side of the stimulator 100, and the rotating shaft is rotatably connected to the two sides of the stimulator 100. Under the action of external force, the rotating shaft can also be taken out of the shaft hole, so that the first belt body 210 and the second belt body 220 are separated from the stimulator 100, and the detachable connection between the flexible belt and the stimulator 100 is realized.

[0114] Of course, the fixing member may also be other structures that can fix the stimulator 100 on the wrist, which is not limited here. For example, in another embodiment of the present application, the flexible fixing member is or is partially an elastic ring, and the elastic ring can be stretched to be put on the wrist, head or upper arm, and the ring body shrinks under its own elasticity, so that it is tightly put on the wrist, head or upper arm to form a fixation.

[0115] It should be understood that although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit without departing from the scope of the exemplary embodiments.

[0116] The directional terms such as outer, middle, inner, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0117] The above is only a preferred embodiment of the present application, and is not any formal or substantial limitation to the present application. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present application, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present application, can make some changes, modifications and evolutions of the technical content disclosed above, which are equivalent embodiments of the present application; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the substantial technology of the present application are still within the scope of the technical solution of the present application.

Claims

1. A wearable device for treating or preventing migraine, It is characterized in that It includes a stimulator and a flexible fixing member connected to the stimulator, wherein the flexible fixing member can fix the stimulator on the wrist, head or upper arm; Also included is a first electrode for targeting a wrist nerve on the wrist, the stimulator being configured to provide electrical stimulation to the wrist nerve on the wrist via the first electrode when the stimulator is fixed on the wrist, wherein the wrist nerve is the median nerve and / or the ulnar nerve; It also includes a second electrode for targeting the frontal nerve of the head or the sensory nerve C fibers on the upper arm. The stimulator is configured to provide electrical stimulation to the frontal nerve via the second electrode when the stimulator is fixed on the head, and to provide electrical stimulation to the sensory nerve C fibers on the head via the second electrode when the stimulator is fixed on the upper arm, wherein the frontal nerve is the supraorbital nerve and / or the supratrochlear nerve.

2. A wearable device for treating or preventing migraine according to claim 1, It is characterized in that The first electrode is fixed on the stimulator, and the second electrode is detachably connected to the stimulator.

3. A wearable device for treating or preventing migraine according to claim 2, It is characterized in that The first electrode is electrically connected to the stimulator; The first electrodes include at least one group, each group includes at least one first electrode used as an anode and at least one first electrode used as a cathode, and the anodes and cathodes in the group are respectively used to target different positions of the wrist nerves; When the anode and the cathode in the group simultaneously come into contact with different positions of the wrist nerve and conduct, the stimulator, the anode, the cathode and the wrist nerve are electrically connected to form a conductive path for conducting electrical pulses.

4. A wearable device for treating or preventing migraine according to claim 2 or 3, It is characterized in that The second electrode is a flexible electrode.

5. A wearable device for treating or preventing migraine according to claim 2, It is characterized in that The second electrode is detachably connected to the first electrode on the stimulator via a connecting structure; When the second electrode is connected to the first electrode through a connecting structure, it is electrically connected to the stimulator through the first electrode to transmit the electric pulses generated by the stimulator to the frontal nerve of the head or the C fibers of the sensory nerves on the upper arm through the second electrode, thereby forming electrical stimulation.

6. A wearable device for treating or preventing migraine according to claim 5, It is characterized in that The connection structure is a buckle structure, and the buckle structure includes a buckle groove arranged on the first electrode and a clamping column arranged on the second electrode, wherein: The buckle slot is electrically connected to the first electrode, the clamping column is electrically connected to the second electrode, and both the buckle slot and the clamping column are conductive. When the clamping column is clamped in the buckle slot, the second electrode is electrically connected to the pulse generator via the first electrode.

7. A wearable device for treating or preventing migraine according to claim 1, It is characterized in that The flexible fixing member comprises an adhesive tape arranged around the stimulator, and the back side of the adhesive tape can be adhered and fixed on the wrist, head or upper arm.

8. A wearable device for treating or preventing migraine according to claim 7, It is characterized in that The adhesive tape can be detachably connected to the back side of the stimulator, and a window for exposing the first electrode is provided on the adhesive tape, and the window is for the first electrode to pass through.

9. A wearable device for treating or preventing migraine according to claim 1 or 7, It is characterized in that The flexible fixing element comprises a flexible belt, which can be surrounded by a ring structure with adjustable circumference, and the circumference of the ring structure can be locked so as to be tightly put on the wrist, head or upper arm.

10. A wearable device for treating or preventing migraine according to claim 9, It is characterized in that The flexible band is detachably connected to the stimulator.

11. A wearable device for treating or preventing migraine according to claim 9, It is characterized in that The flexible belt comprises a first belt body and a second belt body which are arranged opposite to each other on both sides of the stimulator, wherein: The inner end of the first belt body and the inner end of the second belt body are respectively connected to the stimulator, and the first belt body and the second belt body can form the ring structure with adjustable circumference, and the circumference of the ring structure can be locked.

12. A wearable device for treating or preventing migraine according to claim 11, It is characterized in that The front side of the first belt body and the front side of the second belt body are respectively provided with Velcro fur surfaces extending along their own length directions, and the back side of the outer end of the second belt body is provided with Velcro hook surfaces; The Velcro hook surface can be bonded and fixed to the Velcro fleece surface at any position, so that the first belt body and the second belt body form the ring structure with adjustable circumference and lockable; or: The first belt body and the second belt body are respectively provided with a first magnet extending along the length direction thereof, a second magnet is provided on the back of the outer end of the second belt body, and the first magnet and the second magnet on the second belt body are arranged at staggered positions; The second magnet can be magnetically fixed to the first magnet at any position, so that the first belt body and the second belt body form the annular structure with adjustable circumference and lockable.

13. A wearable device for treating or preventing migraine according to claim 11, It is characterized in that A fixing ring is arranged on the outer end of the first belt body, the outer end of the second belt body penetrates into the fixing ring, and an anti-slip plug is arranged on the outer end of the second belt body to prevent the second belt body from slipping out of the fixing ring.

14. A wearable device for treating or preventing migraine according to claim 12 or 13, It is characterized in that The second belt body is longer than the first belt body, and the stimulator is provided with a through hole for the second belt body to penetrate the stimulator along its own length direction.

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