35 results about "Pulse electromagnetic field" patented technology

The invention discloses a gradient strengthening preparation method of a cast high-entropy alloy composite material based on a laser cladding preform, and belongs to the technical field of metal matrix composite material preparation. The method comprises the following steps: firstly, preparing composite powder of a high-entropy alloy and a nano ceramic reinforced phase by combining plasma-assisted ball milling with a pulse electromagnetic field; then constructing a prefabricated body with a gradient pore structure by adopting an intelligent regulation and control laser cladding technology; the prefabricated body and a congruent-component high-entropy alloy cast ingot are innovatively metallurgically bonded through a vacuum gradient infiltration process, and a large-size overall composite material is prepared; and finally, forming a gradient nanostructure on the surface layer of the material through ultrasonic-assisted laser surface reconstruction and small-deformation gradient heat treatment. According to the method, the technical problems that reinforcing phases are uneven in distribution, the interface bonding strength is low, and large-size components are difficult to prepare are successfully solved, the prepared composite material has the excellent gradient performance that the surface hardness is larger than or equal to 12 GPa, and the core hardness is larger than or equal to 8 GPa, ceramic particles are evenly distributed in a three-dimensional network shape, the 800-DEG C high-temperature oxidation resistance is improved by 30% or above compared with a traditional high-entropy alloy, and the composite material is suitable for large-size components. The method is particularly suitable for manufacturing high-performance key components in the fields of aerospace, national defense and military industry and the like.

Presently provided are a method and a system for pulse electromagnetic field (PEMF) and decompression therapy. The system has a treatment table or treatment chair configured and disposed to hold a first body part of a patient. A decompression harness is configured and disposed to hold a second body part of the patient, wherein at least one joint of the patient is disposed between the first body part and the second body part. The decompression harness is configured to transfer a tensional force on the at least one joint of the patient and at least one PEMF treatment module is disposed with the decompression harness and proximate the at least one joint of the patient.

A system is provided for use with a subject suffering from cancer that includes one or more primary or metastatic solid tumors. The system includes nanoparticles including a magnetic metallic core and a phase-change material (PCM) that surrounds the magnetic metallic core and is configured to absorb latent heat of fusion by undergoing a phase change that occurs at a phase-change temperature of 42-80 degrees C. A radiofrequency (RF) transmitter is configured to transmit energy, in a pulse train alternating between high power and low power at a pulse frequency of 1 Hz-5 Hz, to at least a portion of the subject's body, such so that the nanoparticles are heated to the phase-change temperature of the PCM, and store energy from the pulse train in the PCM as latent heat of fusion. Other embodiments are also described.

The invention relates to the technical field of intelligent physiotherapy, and provides an intelligent fascia physiotherapy instrument based on multi-modal bioelectric pulse, which comprises a four-diagnosis data acquisition module, an AI control center and a multi-modal physiotherapy module. The four-diagnosis data acquisition module is integrated with tongue picture, pulse picture, face and voice information acquisition units and is used for acquiring digital images of tongue pictures, pulse waveform data, user face static images and voice information for acoustic analysis, wherein the pulse waveform data and the user face static images are acquired by applying variable pressure by a linear voice coil motor under different pressure levels; the AI control center processes the collected information into quantitative feature vectors, identifies traditional Chinese medicine syndromes based on a random forest classifier and generates a multi-parameter physiotherapy control instruction; the multi-mode physical therapy module integrates four physical therapy modes of a pulse electromagnetic field, intermediate frequency bioelectricity, far infrared radiation and physical therapy ultrasound for collaborative output. The technical problems that in the prior art, physical therapy equipment is single in function and lacks multi-mode cooperation, and physical therapy parameters cannot be automatically matched according to biological information are solved.

A bioelectric therapy system includes a pulsed electromagnetic field module for tissue conditioning and, in some embodiments, a grounding interface configured to electrically couple a subject to a ground reference; a bioelectric stimulation module configured to deliver a regulated, current-limited stimulation signal in a selected low-voltage range via a practitioner-assisted conduction path; and an analyzer configured to acquire measurable biophysical signals to generate assessment data representing physiological parameters. A control unit coordinates a protocol including conditioning, grounding, and stimulation, modifies at least one stimulation parameter based on assessment data or a monitored electrical characteristic, and generates a health assessment report (e.g., a color-coded assessment report) for longitudinal tracking.

This invention relates to the field of electromagnetic field control technology, specifically to a control system for pulsed electromagnetic fields used in the repair of peripheral nerve injuries. The system acquires the action potential voltage amplitude of each spatial node within the coil's coverage area, calculates the pre-stimulation conduction blockage coefficient based on the voltage distribution and time delay correlation of adjacent nodes, identifies blockage nodes, determines the principal normal direction of the blockage region through principal component analysis, and generates a theoretical output current value by combining the coil's projected area in that direction with the blockage coefficient. Subsequently, a low-frequency test pulse is applied, the post-stimulation conduction blockage coefficient is acquired, and a stimulation intensity correction coefficient is calculated. Finally, the corrected actual output intensity is used as the execution parameter for the next round of test pulses, forming a closed-loop adaptive control. This invention overcomes the problem that traditional uniform stimulation parameters cannot match the electrophysiological heterogeneity of nerve injury regions, achieving spatially precise and functionally adaptable electromagnetic control.

The present invention provides a non-drug cardio-cerebrovascular disease therapeutic apparatus. A waveform diagram of a pulse current for generating a pulse electromagnetic field includes four characteristic bands in a cycle range of 360° and reciprocates circularly: an abrupt-rising band T1 where a current intensity I(t) abruptly rises, wherein a highest value thereof is slightly lower than a maximum value Imax of an output current; a first slow-rising band T2 where the current intensity I(t) slowly rises to the maximum value Imax; an abrupt-decreasing band T3 where the current intensity I(t) abruptly decreases, wherein a minimum value Imin thereof is slightly higher than a minimum value (Imin) of the output current; and a slow-decreasing band T4 where the current intensity I(t) slowly decreases to the minimum value (Imin). The non-drug cardio-cerebrovascular disease therapeutic apparatus provided by the present invention can significantly improve and treat cardio-cerebrovascular diseases and achieve obvious effects.

The utility model relates to a multifunctional eye massage device based on a PEMF technology. The multifunctional eye massage device comprises an MCU module; the power supply module is electrically connected with the MCU module and is used for supplying power to the MCU module; the PEMF function module is electrically connected with the MCU module, is controlled by the MCU module to generate a pulse electromagnetic field through low-frequency pulse current, and is used for performing PEMF action on the action area; the hot compress function module is electrically connected with the MCU module, is controlled by the MCU module to heat and is used for performing constant-temperature hot compress on the acting area; the air pressure function module is electrically connected with the MCU module and is controlled by the MCU module to perform air pressure massage on the acting area; and the vibration function module is electrically connected with the MCU module and is controlled by the MCU module to perform vibration massage on the acting area.

This application discloses a dental appliance, comprising: an appliance body, a power module, a sliding limiting structure, and a pulsed electromagnetic field module. The appliance body is used to correct teeth in the oral cavity and includes a receiving slot and a receiving drawer detachably connected to the receiving slot. The power module is housed in the receiving drawer and is detachably attached to the appliance body along with the receiving drawer; the power module provides electrical energy. The sliding limiting structure is disposed on the appliance body in a horizontal or vertical direction and can be positioned opposite an auxiliary position of the teeth being corrected. The pulsed electromagnetic field module is disposed on the sliding limiting structure and connected to the power module to receive electrical energy provided by the power module. The pulsed electromagnetic field module slides with the sliding limiting structure to a target position opposite to the auxiliary position and generates magnetic induction intensity at the target position relative to the auxiliary position of the teeth being corrected.

The invention is suitable for the field of health physiotherapy rehabilitation, and provides an intelligent PEMF system and device with a built-in midnight-noon ebb-flow function. In the embodiment, for a user needing PEMF treatment, the physical sign or disease information of the user can be firstly collected, and then the treatment scheme of the user is generated in combination with the midnight-noon ebb-flow data and the basic data stored in the midnight-noon ebb-flow expert database module; then the PEMF energy generation and projection module generates a pulse electromagnetic field according to pulse parameters in the treatment scheme, and the PEMF intelligent control module starts the corresponding coil array according to the starting time and sequence of the coil array in the treatment scheme, so that the pulse electromagnetic field can be projected to the corresponding acupuncture point according to the treatment scheme. Due to the fact that the dynamic law of the midnight-noon ebb-flow is combined when the treatment scheme is generated, personalized PEMF treatment can be implemented in a self-adaptive mode according to the midnight-noon ebb-flow, and the rehabilitation physical therapy effect of the PEMF is enhanced.

A system is provided for use with a subject suffering from cancer that includes one or more primary or metastatic solid tumors. The system includes nanoparticles including a magnetic metallic core and a phase-change material (PCM) that surrounds the magnetic metallic core and is configured to absorb latent heat of fusion by undergoing a phase change that occurs at a phase-change temperature of 42-80 degrees C. A radiofrequency (RF) transmitter is configured to transmit energy, in a pulse train alternating between high power and low power at a pulse frequency of 1 Hz-5 Hz, to at least a portion of the subject's body, such so that the nanoparticles are heated to the phase-change temperature of the PCM, and store energy from the pulse train in the PCM as latent heat of fusion. Other embodiments are also described.

The invention discloses a composite machining system and method for tube plate connection reinforcement based on a pulse electromagnetic field, and belongs to the technical field of metal material plastic machining and high-performance component manufacturing. The method comprises the following steps: penetrating a heat transfer tube into a high-strength steel tube plate with a surfacing layer; the solenoid coil discharges to generate a pulsed magnetic field, and the heat transfer tube is driven by Lorentz force to deform at high speed and be in tight expanded connection with the surfacing layer; then welding and sealing; and finally, electromagnetic strengthening is carried out on the joint through secondary discharge of the same coil, and the microstructure and the stress state are improved. The system for implementing the method comprises a pulse power source, a solenoid coil, a tool clamp and a process integrated controller, wherein the controller is used for accurately controlling the discharge time sequence and energy. By means of electromagnetic expanded connection and reinforced combined machining, the joint surface quality and the joint performance are remarkably improved, the technology is efficient and clean, the equipment reuse rate is high, and the engineering application value is prominent.

The application relates to the technical field of physiotherapy, in particular to a non-contact electromagnetic physiotherapy method and system for brain waves. The non-contact electromagnetic physiotherapy system for brain waves comprises an electroencephalogram signal acquisition module, an electroencephalogram signal feature data construction module and a pulse electromagnetic field physiotherapy module. The electroencephalogram signal data is mapped to a pulse phase time axis, and the electroencephalogram signal data sequence is corrected in combination with the repetition component constraint of the pulse phase label, so that the periodic interference component introduced in the process of the action of the pulse electromagnetic field can be effectively inhibited, the influence on the electroencephalogram acquisition result and the frequency band energy calculation is reduced, and the accuracy and stability of the electroencephalogram signal feature data extraction are improved. Based on the corrected electroencephalogram signal feature data, a reinforcement learning method is used to construct a driving parameter set of an electromagnetic field construction unit, and a reward value is calculated in combination with a standard curve of brain wave sleep to update a driving parameter construction network.

A system and method for pulsed electromagnetic fields (PEMF) tissue engineering enhances musculoskeletal tissue stimulation. A tissue engineering device may include both low and high pulse frequency signal generation components that may alternatively drive one or more coils to generate PEMFs. These PEMFs may be applied to bone tissue, tendons, ligaments, and / or cartilage. A prescribed treatment regimen using the tissue engineering device may include a first period of time where a first pulse frequency is used in treatment that supports tissue proliferation followed by a second period of time where a second pulse frequency (less than the first pulse frequency) is used in treatment that supports tissue differentiation. A treatment regimen may also include, with the frequency characteristic, applying a slew rate to the pulse characteristics that is on the order of around 30 to 100 Tesla per second to drive tissue differentiation in a targeted manner.

The invention discloses an extrusion and cross-linking integrated manufacturing method of a cross-linked polyethylene insulated power cable, and aims to solve the problems of non-uniform removal of byproducts, interface defects and non-uniform cross-linking in a traditional dry cross-linking process. According to the method, on the basis of three-layer co-extrusion and nitrogen protection crosslinking, ultrasonic vibration on-line byproduct removal, atmospheric pressure plasma interface activation and pulse electromagnetic field auxiliary crosslinking technologies are sequentially introduced, and a collaborative closed loop is formed. The method is compatible with an existing production line, only equipment needs to be modularly added, and near-zero micropores, compact interface and uniform crosslinking are realized through precise parameter optimization. The partial discharge capacity of the finished cable is far better than that of the industrial standard, the breakdown strength is remarkably improved, the aging life is remarkably prolonged, the production efficiency is greatly improved, the qualified rate is greatly increased, and the cable is suitable for 110kV-500kV high-voltage / ultrahigh-voltage power transmission and distribution and new energy grid connection scenes.

The utility model discloses an electromagnetic pulse generator and circulating water treatment device, including energy-gathered magnetization chamber, energy excitation module and energy controller, energy-gathered magnetization chamber is tubular structure that the middle is through, energy excitation module is provided outside energy-gathered magnetization chamber, energy excitation module is distributed around energy-gathered magnetization chamber circumference, energy controller is connected with energy excitation module, energy controller is connected with energy controller. And the energy controller is electrically connected with the energy excitation module. A composite alternating electromagnetic wave technology is adopted, car washing circulating water flows through a regularly changing pulse electromagnetic field, the binding force between activated water molecules of coalescence energy and calcium, magnesium and other ions prone to scaling is enhanced, the crystal form of the ions is changed, scaling crystals not prone to adhesion and loosening are formed, and the hardness of a water body is reduced; meanwhile, under repeated impact of microorganisms in the wastewater in an electromagnetic wave energy field, cell membranes generate an electric breakdown effect, irrecoverable rupture occurs, a cell nucleus structure is damaged, microorganism death is caused, water is filtered, and the whole device has the advantages of being simple in structure, convenient to install and maintain, long in service life and the like.

The invention relates to a broadband adjustable electromagnetic field water treatment method, system and platform and a storage medium, and belongs to the field of water treatment.The method comprises the steps that water quality information is obtained and preprocessed, and the water quality information comprises an original signal and a working condition signal; sending the obtained original signal of the water quality information and the working condition signal, and pre-processing and outputting to obtain a scaling trend and working condition characteristics; generating and coupling a broadband electromagnetic field, receiving the original signal and the working condition signal of the preprocessed water quality information, and generating a continuously adjustable pulse electromagnetic field; effect monitoring and post-treatment are conducted, the water quality obtained after water molecule activation and calcium carbonate crystal form regulation and control is judged on the basis of the preset monitoring frequency, monitoring data are obtained, and the monitoring data are combined with the offline scale form and corrosion rate detection to form a verification system; and performing post-processing according to the verification system. The electromagnetic water treatment device has the effect of improving the stability of the electromagnetic water treatment effect.

The application relates to the technical field of physiotherapy, in particular to a non-contact electromagnetic physiotherapy method and system for brain waves. The non-contact electromagnetic physiotherapy system for brain waves comprises an electroencephalogram signal acquisition module, an electroencephalogram signal feature data construction module and a pulse electromagnetic field physiotherapy module. The electroencephalogram signal data is mapped to a pulse phase time axis, and the electroencephalogram signal data sequence is corrected in combination with the repetition component constraint of the pulse phase label, so that the periodic interference component introduced in the pulse electromagnetic field action process can be effectively inhibited, the influence on the electroencephalogram acquisition result and the frequency band energy calculation is reduced, and the accuracy and stability of the electroencephalogram signal feature data extraction are improved. Based on the corrected electroencephalogram signal feature data, a reinforcement learning method is used to construct a driving parameter set of an electromagnetic field construction unit, and a reward value is calculated in combination with a standard curve of brain wave sleep to update a driving parameter construction network, so that the sleep induction effect of the pulse electromagnetic field regulation is improved.

A magnetic pulse therapy applicator configured to deliver high intensity pulsed electromagnetic field (PEMF) therapy to a user's foot. The applicator allows the user to slide their foot into and out of the treatment area with minimal effort and automatically positions the foot within the core of a High-Power solenoid that generates therapeutic magnetic pulses. The solenoid is enclosed within a housing designed for efficient heat dissipation through air cooling, oil cooling, or both, enabling sustained high-power operation.

According to one embodiment of the present invention, a shoe using a pulsed electromagnetic field includes a shoe body, a sole provided below the shoe body, a battery module provided on the sole and configured to supply DC power, an electromagnetic field vibration device and a sensing module provided on the sole and connected to the battery module through a cable. While a user wearing the shoe walks, the sensing module calculates a walking pattern based on sensing data. The electromagnetic field vibration device includes a plurality of coils and a control unit disposed to overlap a narrowest portion of a middle portion of the sole. The coils are disposed at a front end portion and a rear end portion of the sole and connected to the control unit through a cable.

Disclosed herein is a method of promoting drug uptake via TRPC1 channels using a pulsed electromagnetic field (PEMF). Also disclosed herein are methods of treating cancer using PEMF adjuvant therapy and methods of selecting cancer patients for PEMF adjuvant therapy by detecting TRPC1 levels in a cancer sample.

This invention relates to the field of materials processing technology and discloses a gradient structure metal-based seamless tube and its preparation method. The preparation method includes: (1) three-stage temperature-controlled rolling; (2) interface reconstruction: applying a pulsed electromagnetic field with an asymmetric angle to the rolling direction to the tube rolled in step (1); the specific conditions of the pulsed electromagnetic field are: magnetic field strength of 0.5~5T; pulse frequency f satisfies: f=(v / d)×k; where v is the tube moving speed (m / s), d is the tube wall thickness (mm), and k is an adjustment coefficient of 103~105; microstructure control: laser selective impact and electromagnetic oscillation coupling treatment is performed on the tube obtained in step (2); the impact energy density is 5~15J / cm. 2 The oscillation frequency is 20~100kHz. This invention can synergistically improve the strength and toughness of pipes, significantly extend fatigue life, and achieve a breakthrough improvement in corrosion resistance.

The present invention discloses a portable pulsed electromagnetic field therapy (PEMFT) system (100), comprising: a main body (101) configured for generating a pulsed electromagnetic field (PEMF), and a strap (102) configured to be wrapped around a hand, wherein the main body (101) comprises a PEMF emitter (7) configured to alternately emit a first pulse signal at a first frequency and a second pulse signal at a second frequency periodically; wherein the first frequency is 20Hz – 45Hz, and the second frequency is 50Hz – 90Hz, and the second frequency is at least 10Hz higher than the first frequency; and, wherein the strap (102) comprises a first attachment section (104) configured to cover a target treatment area (201), and the main body (101) is configured to be detachably mounted on the first attachment section (104). The present invention offers a non-invasive alternative to conventional treatment methods, providing a convenient and precise solution for enhancing cardiovascular health, delivering an effective and user- friendly treatment experience.

A system is provided for increasing skin rejuvenation of a region of a patient's skin comprising a pulsed electromagnetic field (PEMF) frequency generator for constantly providing electromagnetic pulses to said region of a patient's skin and a deep tissue diathermy device for constantly applying heat to said region of a patient's skin up to temperature T. The system is adapted for simultaneously applying heat and PEMF to the region of a patient's skin. Application of the system increases skin rejuvenation such that the skin rejuvenation increase (SRI) is greater than the sum of the SRI provided by electromagnetic pulses increase and the SRI provided by the deep tissue diathermy device increase.

The invention relates to a device for treating temperature-sensitive, preferably liquid, products, in particular foodstuffs with biological cell structures, by means of pulsed electromagnetic fields (PEF) in a flow-through process in, in particular collinear, treatment chambers, which have an alternating arrangement of spatially formed electrodes and insulators and with means for introducing and removing the respective product. According to the invention, temperature control or cooling channels are formed within the electrodes and / or the insulators, which have connections for supplying and removing a liquid temperature control or cooling agent.

The invention belongs to the technical field of power device packaging and materials, and particularly relates to non-pressure composite brazing filler metal capable of rapidly forming full IMC and a preparation method and application of the non-pressure composite brazing filler metal. According to the composite brazing filler metal, SAC305 alloy powder serves as the basis, the SAC305 alloy powder is mixed with (Cu, Ni)-coated Sn core-shell structure powder, an organic solvent in a specific proportion is added, and mixed solder paste is prepared. The mixed solder paste is suitable for a low / pressureless sintering process, a pulse electromagnetic field is adopted for auxiliary sintering, a compact and stable connection interface can be formed after sintering is carried out for several minutes at the temperature of 200-250 DEG C, a full IMC structure can be formed, the highest shear strength can reach 56.17 MPa, air tightness is good, the mixed solder paste is remarkably superior to a conventional traditional Cu-Sn system, and production and application requirements are met.

The disclosure relates to a system including a pulsed electromagnetic field (EMF) device configured to generate an EMF pulse, and a second device. The second device includes a coil loop and a light generating unit electrically coupled to the coil loop. The coil loop is configured to induce a current in response to the EMF pulse. The light generating unit is arranged to receive at least some of the induced current and emit a light pulse having an intensity proportional to the received current.

A pulsed electromagnetic field (PEMF) device includes at least one electromagnetic (EM) field emitter. During post-birth recovery, a patient applies the EM field emitter to herself. The PEMF device performs a recovery cycle. In the recovery cycle, the EM field emitter emits EM fields having frequency combinations with a response frequency and a target frequency for a frequency combination period.

The invention discloses a pulse electromagnetic treatment method for improving anti-friction-corrosion coupling performance of 34MnB5 automobile steel, and belongs to the technical field of metal material modification and performance optimizing.The pulse electromagnetic treatment method comprises the steps that a 34MnB5 hot-rolled plate friction piece is subjected to double-face polishing and cleaning; the 34MnB5 hot-rolled plate friction piece is clamped through a clamp; the clamped 34MnB5 hot-rolled plate friction piece is fixed to the center position of a pulse electromagnetic treatment device; setting process parameters of pulse electromagnetic coupling treatment; carrying out electromagnetic coupling treatment on the 34MnB5 hot-rolled plate friction piece by adopting the set pulse electromagnetic coupling process parameters; and carrying out steel friction wear-corrosion resistance coupling performance analysis on the 34MnB5 hot-rolled plate friction piece subjected to electromagnetic coupling treatment. The method is simple in operation process, and has the characteristics of high efficiency and environmental protection; according to the method, the hot-rolled 34MnB5 steel is directly subjected to pulse electromagnetic field coupling strengthening, and compared with a final-state material of a conventional heat treatment process, the friction-corrosion coupling resistance of the 34MnB5 automobile steel is improved, and the service life of the material is prolonged.