Abstract: A waterproof button structure includes a button main body, a shell and a shaft sleeve, wherein a button mounting slot is reserved on the shell; a vertical column is arranged in the button mounting slot; the vertical column is provided with a through hole longitudinally penetrating through the vertical column; the button main body includes a pressing portion and a shaft portion; a bottom surface of the pressing portion is provided with a first annular groove; a second annular groove is formed between the vertical column and an inner wall of the button mounting slot.

Abstract: Embodiments of the present disclosure provide a centralized light supply apparatus, including: a controller, at least one light source pool, and a plurality of CPO switches. The controller is connected with the light source pool and the plurality of CPO switches through a two-way communication channel, and the light source pool is connected with the plurality of CPO switches through a photoelectric hybrid connector. The controller is configured to control the light source pool and the plurality of CPO switches. The light source pool is configured to output a light source to the plurality of CPO switches under control of the controller. The plurality of CPO switches are configured to modulate the received light source into an optical signal under control of the controller and output the optical signal. The light source pool may be cascaded and expanded through one controller.

Abstract: Disclosed is a wrist-worn medical device. The wrist-worn medical device includes: an electrode strap, provided with conductive sponges, where the conductive sponges are configured for abutting against and conducting with conductive sheets; a connection strap, provided with the conductive sheets, where the connection strap is further electrically connected to a host, the conductive sheets are electrically connected to the host, and the host and the conductive sheets are respectively arranged on both sides of the connection strap along its thickness direction; and a limiting member, arranged on the connection strap, where when the connection strap abuts against the electrode strap, both the conductive sponges and the conductive sheets are located inside the limiting member.

Abstract: The present disclosure discloses a wristband nerve stimulator and a use method thereof. The wristband nerve stimulator is small in volume and wearable, and has a waterproof function. As a wristband instrument, the wristband nerve stimulator can perform treatment at any time. Furthermore, the fixed main unit and the band can be quickly mounted and removed, which is convenient to replace the band.

Abstract: Disclosed is an H-bridge control circuit for an electro-stimulation therapeutic instrument for neuromodulation. The H-bridge control circuit includes an H-bridge circuit and a constant current source, where the H-bridge circuit includes a first positive channel metal oxide semiconductor (PMOS) transistor, a second PMOS transistor, a first negative channel metal oxide semiconductor (NMOS) transistor and a second NMOS transistor. Corresponding switching diodes are additionally arranged between the first PMOS transistor and a load and between the second PMOS transistor and the load to avoid an influence of safety of the therapeutic instrument by discharging charges during an interval of stimulation; and moreover, a resistance-capacitance (RC) circuit is additionally arranged between the first PMOS transistor, the second PMOS transistor and a control device such that connection and disconnection of the PMOS transistor can be controlled.

Abstract: Disclosed are a control circuit and control method for an electro-stimulation therapeutic instrument for neuromodulation. The control circuit includes a first switch, a second switch, a third switch, a fourth switch, a first signal end, a second signal end and a constant current source, where a first end of the first switch is connected to a power supply, and a second end of the first switch is connected to the first signal end; a first end of the second switch is connected to the power supply, and a second end of the second switch is connected to the second signal end; a first end of the third switch is connected to the first signal end, and a second end of the third switch is connected to the constant current source; and a first end of the fourth switch is connected to the second signal end.

Abstract: A keyboard and an electronic device, wherein the keyboard comprises: a keyboard module comprising a plurality of keycaps and a keyboard body; a body waterproof layer provided with an accommodating part; and a keycap waterproof layer comprising a first bonding part and a second bonding part, wherein each of the keycaps passes through the accommodating part, and the body waterproof layer is connected with the keyboard body; the first bonding part is bonded to a side of each of the keycaps away from the keyboard body, and the second bonding part is bonded to the accommodating part; and the body waterproof layer and the keycap waterproof layer are both an integrally formed structure; the electronic device comprises the keyboard above the a device body, the keyboard is connected with the device body by a signal.

Abstract: The present disclosure discloses a manufacturing method of a wristband embedded with multiple groups of electrode pieces. The present disclosure provides a band manufacturing method that can take metal electrodes and silica gel electrodes into account, which ensures that the electrodes are firm and will not fall off when the wristband is worn. All the electrodes are clung to the skin through electrode bands, so that the wires are effectively prevented from being intertwined and broken, and the service life of the wires can be prolonged. Meanwhile, fast mounting and connection between the electrodes and the main unit are realized, and it can also be ensured that joints of the band and the main unit after assembling are waterproof.

Abstract: A three-dimensional scanning system includes a scanning apparatus configured to acquire first raw image data of a scanning target. The three-dimensional scanning system further includes a first field programmable gate array (FPGA) module provided in the scanning apparatus and configured to perform computational preprocessing on the first raw image data to obtain valid first feature data. The three-dimensional scanning system further includes a modeling terminal connected to the scanning apparatus and configured to perform modeling processing based on the first feature data to generate a three-dimensional model of the scanning target.

Abstract: A method of eliminating microstructure inheritance of hypereutectic aluminum-silicon alloys. The method includes heating a first amount of the Al—Si alloy to a predetermined temperature above a liquidus temperature of the Al—Si alloy to form a first amount melt; holding the first amount melt at the predetermined temperature for a predetermined amount of time; stirring the first amount melt during the predetermined amount of time; heating a second amount of the Al—Si alloy above the liquidus temperature of the Al—Si alloy to form a second amount melt; and mixing the first amount melt and the second amount melt to form a processed Al—Si casting alloy. The predetermined temperature is between about 750° C. to 850° C. The predetermined amount of time is between 0.1 hour to 0.5 hour. The processed Al—Si casting alloy contains about 30 wt % to about 40 wt % of the first amount of the Al—Si alloy.

Abstract: Disclosed are a keyboard and an electronic device, wherein the keyboard comprises: a keyboard module comprising a plurality of keycaps and a keyboard body; a body waterproof layer provided with an accommodating part; and a keycap waterproof layer comprising a first bonding part and a second bonding part, wherein each of the keycaps passes through the accommodating part, and the body waterproof layer is connected with the keyboard body; the first bonding part is bonded to a side of each of the keycaps away from the keyboard body, and the second bonding part is bonded to the accommodating part; and the body waterproof layer and the keycap waterproof layer are both an integrally formed structure; the electronic device comprises the keyboard above the a device body, the keyboard is connected with the device body by signal.

Abstract: A method of eliminating microstructure inheritance of hypereutectic aluminum-silicon alloys. The method includes heating a first amount of the Al—Si alloy to a predetermined temperature above a liquidus temperature of the Al—Si alloy to form a first amount melt; holding the first amount melt at the predetermined temperature for a predetermined amount of time; stirring the first amount melt during the predetermined amount of time; heating a second amount of the Al—Si alloy above the liquidus temperature of the Al—Si alloy to form a second amount melt; and mixing the first amount melt and the second amount melt to form a processed Al—Si casting alloy. The predetermined temperature is between about 750° C. to 850° C. The predetermined amount of time is between 0.1 hour to 0.5 hour. The processed Al—Si casting alloy contains about 30 wt % to about 40 wt % of the first amount of the Al—Si alloy.

Abstract: The present invention relates to the field of wearable neurotherapy devices, and particularly relates to a wrist-worn nerve stimulator. The nerve stimulator is suitable for the wrist and other parts of limbs. For the nerve stimulator, a conducting medium attached to a strap not only ensures no tingling sensation during electrical stimulation therapy, but also alleviates the problem of discomfort without prejudice to the therapeutic effect, thereby reducing the difficulty of assembling the nerve stimulator and improving wearing adaptability; in addition, it can be seen from the use of a first strap and an electrical stimulation part that the wrist-worn nerve stimulator has a split structure and is composed of the first strap and the electrical stimulation part, such that the difficulty of disassembling basic frameworks for electrical stimulation therapy is significantly reduced, and it can be understood that the consumable first strap is easier to be replaced.

Abstract: The present disclosure discloses a multi-electrode miniature electrical stimulation system, including a BOOST circuit and a voltage doubling circuit; the core of the BOOST circuit is a switching power chip; a stimulation waveform control circuit includes several half-bridge drive circuits; each half-bridge drive circuit is correspondingly connected with one electrode, and any half-bridge drive circuit can output a bidirectional stimulation current; a voltage-controlled constant current source circuit includes an operational amplifier, a multi-channel analog switch and several diffusing power tubes; the operational amplifier works in a negative feedback working state.

Abstract: The present disclosure discloses a wristband nerve stimulator applicable to both the left and right hands and a use method thereof. The wristband nerve stimulator includes a fixed main unit and an electrode piece band; a groove and an adapter port are respectively arranged on two sides of a bottom of the fixed main unit; a controller is arranged in the fixed main unit; the controller includes a main control unit (MCU), an intelligent identification unit, a storage unit and a stimulation unit; the electrode piece band comprises a base and an electrode assembly; adapter seats are arranged on two sides of a top surface of the base; a memory IC is arranged in the base; the memory IC is provided with an independent identification ID and can record the number of use or the service life of the electrode piece band.

Abstract: The present disclosure discloses a waterproof button structure, including a button main body, a shell and a shaft sleeve, wherein a button mounting slot is reserved on the shell; a vertical column is arranged in the button mounting slot; the vertical column is provided with a through hole longitudinally penetrating through the vertical column; the button main body includes a pressing portion and a shaft portion; a bottom surface of the pressing portion is provided with a first annular groove; a second annular groove is formed between the vertical column and an inner wall of the button mounting slot.

Abstract: The present disclosure discloses a fixing structure of two watchbands, including a main unit, an inner band and an outer band, wherein the inner band is connected with a bottom of the main unit; the outer band is rotatably connected with one side of the main unit; a groove is arranged on an outer side of the inner band; a hook surface is arranged in the groove; a loop surface matched with the hook surface is arranged on an inner side of the outer band; and the hook surface is adhered to the loop surface. In the present disclosure, by the arrangement of the hook surface and the loop surface, the hook surface and the loop surface are adhered, so that the inner band and the outer band can overlap each other to be fixed, which avoids the inner band from shifting to affect the use effect.

Abstract: The present disclosure discloses a manufacturing method of a wristband embedded with multiple groups of electrode pieces. The present disclosure provides a band manufacturing method that can take metal electrodes and silica gel electrodes into account, which ensures that the electrodes are firm and will not fall off when the wristband is worn. All the electrodes are clung to the skin through electrode bands, so that the wires are effectively prevented from being intertwined and broken, and the service life of the wires can be prolonged. Meanwhile, fast mounting and connection between the electrodes and the main unit are realized, and it can also be ensured that joints of the band and the main unit after assembling are waterproof.