411 results about "Bio electricity" patented technology

The invention relates to a multi-frequency bioelectrical impedance-based body fat accurate measurement method and system. The method comprises the following steps: receiving a mode selection instruction sent by a user to determine a current working mode; if the mode is a rapid measurement mode, applying single reference frequency and reference current intensity excitation, obtaining a single group of bioelectrical impedance data, and calculating a rapid body fat rate result; if the measurement mode is an accurate measurement mode, acquiring bioelectrical impedance data under a plurality of preset frequencies and a plurality of preset current intensities through a complete electrode system, performing signal processing on the data, extracting impedance amplitude and phase information, constructing an impedance characteristic curve, extracting characteristic parameters related to the body fat rate from the impedance characteristic curve, and calculating the body fat rate based on the characteristic parameters. And obtaining a final body fat rate result of the accurate measurement mode. According to the method, the body fat rate can be accurately measured, and the accuracy and reliability of a measurement result are improved.

The application provides application of SEBS in implanting a biological electrode base. The biological electrode based on the SEBS base can be implanted in biological tissues, and is used for continuously or discontinuously analyzing physiological parameters of the biological body. Compared with other flexible bases, the SEBS base has the characteristics of being thinner and more flexible, can reduce the interference of body movement on the electrical signal, reduce the volume range of the implanted tissue and reduce the inflammatory reaction, thereby improving the measurement accuracy and long-term stability, is expected to meet more implantation site requirements when used for implanting a sensor, and has a good application prospect.

The invention belongs to the technical field of external diagnosis devices, and particularly relates to a memristor for adenovirus concentration detection and a preparation method of the memristor. The memristor comprises a bottom electrode layer, a metal oxide layer, a functional layer and an upper electrode layer which are sequentially formed from bottom to top in the thickness direction, the bottom electrode layer is an FTO conductive glass layer, the metal oxide layer is tantalum pentoxide, the functional layer is a gelatin-beta cyclodextrin composite film, and the upper electrode layer is a conductive electrode layer. The gelatin-beta cyclodextrin composite film with the memristive effect serves as a functional layer, after the film makes contact with adenoviruses, the film adsorbs virus particles, then the unique resistance change characteristic of the memristor is caused, the memristive behavior of the memristor is further fed back, and the memristive effect of the memristor is improved. The method is used for recording and analyzing the electrochemical or bio-electricity signal characteristics of adenovirus solutions with different concentrations, the adenovirus solutions with different concentrations are effectively distinguished according to the electric signal difference of the adenovirus solution and the control solution, the effect is obvious, and the repeatability is good.

This application provides a bioelectrical impedance measurement method, circuit, chip, and electronic device. The method includes: obtaining a first contact impedance value corresponding to a first excitation electrode and a second contact impedance value corresponding to a second excitation electrode through a preset method; determining the transmission direction of an excitation current between the first and second excitation electrodes based on the first and second contact impedance values; controlling the excitation current to transmit between the first and second excitation electrodes according to the transmission direction; determining a target voltage value between a first and second measuring electrode, and calculating the impedance of the measured object based on the target voltage value; wherein the first and second contact impedance values ​​are different. This application can reduce the influence of contact impedance on the bioelectrical impedance measurement results, reduce the measurement error of bioelectrical impedance, and improve the accuracy of bioelectrical impedance measurement.

The invention discloses an intelligent biological eardrum based on individualized 3D printing and a preparation method thereof, and belongs to the technical field of medical instruments, and the eardrum comprises an individualized eardrum substrate, a PEDOT: PSS flexible electrode array integrated on the inner surface of the substrate, a multi-frequency bioelectrical impedance detection module, a VCT module and a central processing unit. Through multi-frequency bioelectrical impedance detection and VCT imaging, an auricle conductivity distribution map can be reconstructed, a nerve active area can be accurately identified, and personalized transcutaneous nerve electrical stimulation parameters can be generated. The invention further provides a corresponding intelligent nerve regulation and control system, a preparation method and a parameter adjustment method based on physiological signal feedback, an integrated solution from individualized manufacturing, precise recognition to self-adaptive closed-loop regulation and control is achieved, and the intelligent nerve regulation and control system is particularly suitable for individualized nerve regulation and control treatment of irritable bowel syndrome and other diseases; the problems of low stimulation precision, lack of individuation, poor comfort, no closed-loop feedback and the like in the prior art are effectively solved.

The invention is suitable for the technical field of biological measurement, and particularly relates to an intelligent body fat scale and a multi-frequency bioelectrical impedance measurement data fusion method thereof, and the method comprises the steps: carrying out the multi-frequency bioelectrical impedance measurement of a target measurement object, and obtaining a plurality of groups of bioelectrical impedance data sequences under different frequency bands; performing feature analysis on each bioelectrical impedance data sequence, determining a data analysis result corresponding to each frequency band, and determining data reliability corresponding to each frequency band according to the data analysis result; the fusion weight corresponding to each frequency band is determined based on the data reliability, and the limitation of a traditional fixed weight or simple average fusion method is overcome; and according to the fusion weight corresponding to each frequency band, weighting adjustment is performed on the corresponding bioelectrical impedance data sequence to obtain the adjustment data, and fusion processing is performed based on each adjustment data to obtain the measurement data, so that the technical advantages of multi-frequency measurement are fully exerted, and the overall competitiveness of the body fat scale product is enhanced.

Methods and systems described herein may comprise a rigid bioelectric patch comprising one or more electrodes disposed on the outside of the rigid bioelectric patch and configured to allow conduction of an electroencephalogram (EEG) signal; and a signal processing unit configured to receive the EEG signal and determine user's medical information. Further comprising a hydrogel configured to be fixed to a user's forehead and conduct the EEG signal to the one or more electrodes, wherein the hydrogel is an adhesive of.01 N / cm − 1,000 N / cm for peel strength and a conductive material of.0001-9:1020 S / m.

The invention discloses a ginkgo natural extract copolymerized antibacterial conductive gel as well as a preparation method and application thereof. The conductive gel is prepared from the following raw materials in parts by mass: 1 to 10 parts of ginkgo natural extract, 1 to 8 parts of imidazolyl alkenyl amic acid compound, 0.02 to 0.1 part of stabilizer, 0.01 to 0.2 part of emulsifier, 0.5 to 1 part of organic silicon cross-linking agent, 1 to 5 parts of modifier, 0.05 to 0.3 part of organic oxidant, 1 to 10 parts of natural polysaccharide, 15 to 25 parts of organic solvent and 10 to 30 parts of water. The gingko natural extract has an antibacterial effect, micro-current is conducted by the gingko natural extract through a macromolecular chain and aromatic continuous conjugated structures in flavonoids and olefinic terpenoids, the antibacterial and conductive gel which is low in toxicity and can be applied to organism tissue repair is prepared, and the gel serving as a flexible medium can conduct electric signals and also can be used for repairing tissues of organisms. The foreign matter reaction risk can be reduced through the antibacterial function, meanwhile, the toxicity of metal ion leakage is avoided, and the method has unique advantages in the micro-current related fields such as flexible electronic sensors and bioelectrical stimulation dressings.

The utility model relates to an enhanced denitrification device for a microbial electrolysis constructed wetland. The enhanced denitrification device comprises a constructed wetland system, an electrolysis system and an intelligent control system, the constructed wetland system comprises a water distribution area and a constructed wetland reaction area; a water inlet device is arranged in the water distribution area, and the water distribution area is communicated with the constructed wetland reaction area through the water inlet device; wherein an electrolysis system and an intelligent control system are also arranged in the constructed wetland reaction zone. The device has the advantages that the removal of pollutants, mainly nitrogen, of the constructed wetland is enhanced by mainly utilizing external voltage in the electrolysis system 2, and the water inlet flow, the external voltage and the distance between the electrodes can be adjusted according to the intelligent control system 3, so that the surface hydraulic load of the constructed wetland and the current intensity in the wetland are controlled; and the two systems cooperate to enhance the removal of pollutants, especially nitrogen, of the constructed wetland, so that the pollutants in water are efficiently removed, the water quality of discharged wastewater is improved, and the environmental water quality is improved.

The invention discloses a device for repairing underground water pollution of an in-production enterprise by combining bioelectricity-Fenton with a circulating well. The device comprises an extraction well which is vertically arranged underground and is communicated with underground water, and a suspended matter separation mechanism, an electrode display mechanism and a strong oxidation mechanism which are sequentially connected with the extraction well, the suspended matter separation mechanism comprises a separation containing tank communicated with the extraction well and provided with an upward opening, a separation tank top cover with a downward opening is arranged at the top of the separation containing tank, a plurality of separation input pipes communicated with the interior of the separation containing tank are arranged at the bottom of the separation containing tank, and a plurality of suspended matter output pipes communicated with the interior of the separation containing tank are arranged on the side wall of the separation containing tank. The top cover of the separation tank is connected with a separation output pipe which vertically extends in a sliding manner; the device integrates four core technologies of physical separation, electrochemical reaction, Fenton strong oxidation and biodegradation, internal circulation of an underground water body is formed through the circulating well, and underground water discharge or secondary pollution in the remediation process is avoided.

The present invention relates to a smart textile garment, a system and a method for functional assessment and monitoring of the lumbar spine, based on the acquisition of bioelectrical signals and data concerning a user's postures and movements, which, in combination with artificial intelligence techniques, allows the sensations perceived by the user to be objectively assessed and classified, eliminating the subjective component in this operation. For this purpose, the garment of the invention incorporates a plurality of textile electrodes for acquiring various bioelectrical signals, such as ECG (HRV), EMG and / or EDA, which are processed by control electronics linked to a movement and posture acquisition system and to processing software that uses machine learning methods to associate patterns of movement and posture with bioelectrical signals indicative of injuries causing lumbar pain.

1. Name of the product in this design: Bioelectric Eye and Ear Training Device. 2. Purpose of this product design: To improve visual function by performing acupuncture training on acupoints around the eyes and ears. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key features: the front view. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The invention discloses a CSTR-based three-dimensional electrode MEC-fluidized bed reactor for anaerobic fermentation of cow dung and application, and belongs to the technical field of microbial electrochemistry. The reactor comprises a reactor main body, a feed port, a discharge port, a gas outlet and a stirring device, an anode and a cathode are arranged in the reactor main body, a conductive three-dimensional particle electrode filler is filled between the anode and the cathode to form a three-dimensional electrode system, and the anode and the cathode are connected with an external power supply. The three-dimensional electrode system is constructed, so that the reaction specific surface area and the electron transfer efficiency are greatly increased, the stimulation effect of a low-voltage electric field is amplified to the whole reaction space, and the technical bottlenecks of low mass transfer efficiency, low methane yield, easiness in system instability and the like in the traditional cow dung anaerobic digestion are solved. Compared with the traditional anaerobic digestion and two-dimensional microbial electrolysis cell, the two-dimensional microbial electrolysis cell disclosed by the invention can obviously improve the methane yield and the system operation stability, and has an excellent engineering application prospect.

The invention relates to the technical field of crossing of medical instruments and biomedical engineering, and discloses a vaginal ultrasonic probe protective sleeve integrated with a uterus myoelectricity monitoring flexible electrode, which comprises a sleeve body and a flexible sensing module integrated on the head of the sleeve body, the flexible sensing module comprises a flexible substrate, a flexible electrode array and a packaging layer from inside to outside. The flexible sensing module is integrated at the head part of the sleeve body, and the flexible sensing module is provided with the flexible substrate, the flexible electrode array and the packaging layer from inside to outside, so that on the premise of not changing the existing vagina ultrasonic examination operation process and not interfering the ultrasonic image quality, the disposable protective sleeve is transformed, and the vagina ultrasonic examination efficiency is improved. Therefore, a high-performance bio-electricity signal collection interface is formed while the isolation function is achieved, and real-time, synchronous and same-body-position collection of uterus ultrasonic images and cervical opening electromyographic signals is achieved.

This application discloses a wearable EEG signal processing method and device based on feature fusion. The method includes: synchronously latching the main channel EEG signal from bioelectric electrodes and multimodal auxiliary signals from various auxiliary sensor interfaces within a preset period; inputting the multimodal auxiliary signals into a pre-trained interference identification model, outputting a structured interference quantization vector, which includes the confidence and intensity of different interference sources; processing the main channel EEG signal according to the confidence and intensity of different interference sources and a preset parameterized anti-interference algorithm library to obtain the final EEG data; quantifying the quality confidence of the final EEG data, storing the ternary mapping relationship between the current period, quality confidence, and the final EEG data, and sending it to a downstream application. Using this application, adaptive matching of the processing strategy with the real-time interference scenario is achieved, effectively avoiding overprocessing or underprocessing, and greatly improving the data robustness and accuracy of downstream applications.

Sensing an evoked response to electrical stimulation of target tissue of a patient in conjunction with an intra-luminal electrode. The intra-luminal electrode may be implanted in a blood vessel or similar lumen proximal to the target tissue and the sensed signals and / or delivered stimulation may pass through the blood vessel. or other lumen, walls. In some examples the evoked response may be an evoked compound action potential (ECAP), which may also be evoked resonant neural activity (ERNA). The electrical stimulation may elicit a measurable response indicative of a thought pattern or neural state that would otherwise be undetectable using a non-evoked biopotential.

The embodiment of the application provides a multi-modal bioelectric signal anti-crosstalk collection circuit, a chip and a wearable device, which comprise: a first power supply module and a first bioelectric signal collection module are electrically connected, and are used for acquiring a first power supply signal and supplying power to the first bioelectric signal collection module; a first grounding end is used for providing a first grounding signal; a second grounding end is used for providing a second grounding signal, the first bioelectric signal collection module is electrically connected with the first grounding end, and is used for collecting a first bioelectric signal; an electric signal isolation module is electrically connected with the first power supply module and a second bioelectric signal collection module, is used for converting the first power supply signal into a second power supply signal, and sending the second power supply signal to the second bioelectric signal collection module; and the second bioelectric signal collection module is electrically connected with the second grounding end, and is used for collecting a second bioelectric signal.

The application discloses a kind of hydrogel electrode with adhesion and anti-sweat characteristics and preparation method and application thereof, belong to flexible hydrogel sensing material technical field.The electrode is formed by dissolving acrylic acid, hydrophobic modified tannic acid, initiator, polyethyleneimine and conductive substance in deionized water to form a precursor solution, and is prepared by pouring into mould and then carrying out ultraviolet light polymerization.The hydrogel electrode prepared by the application has good mechanical strength, excellent skin adhesion, significant anti-sweat interference ability, high conductivity and low contact impedance.The electrode can be directly attached to the skin and used as a strain sensor or to collect various bioelectric signals, and has the comprehensive advantages of high stability, good detection accuracy, low interface impedance, excellent biocompatibility, easy-to-obtain material and simple process.

The invention discloses a deep denitrification system and method for driving Coammox and Anammox synergism by utilizing micro-current Fe-Cu bipolar biological electrode particles, and belongs to the technical field of biological sewage treatment and microorganism enrichment. The system comprises an SBR (Sequencing Batch Reactor) added with Fe-Cu bipolar biological electrode particles, an aeration and control system and a DO / ORP (Dissolved Oxygen / Oxidation Reduction Potential) online monitoring device. Under the condition of ultralow dissolved oxygen, through microampere-level current and by utilizing the ecological niche advantages of in-situ slow release of Fe and Cu trace elements and active reinforcement of Comammox and Anammox of a bipolar electrode and electron directional flow in a nitrogen metabolism process, metabolic synergy and spatial copolymerization of Comammox and Anammox are driven, so that high enrichment and efficient deep denitrification of Comammox and Anammox are realized under the mainstream ammonia nitrogen concentration (40mg-N / L). The system does not need an organic carbon source, is simple in process and stable in operation, can remarkably reduce aeration energy consumption and material consumption, is suitable for low-carbon deep denitrification and upgrading and reconstruction of municipal sewage treatment, and provides a new insight for global biological nitrogen circulation.

The invention provides an intelligent breathable bandage capable of being adhered to skin. The intelligent breathable bandage capable of being adhered to skin comprises an antibacterial bioelectric interface film capable of being adhered in a stretching mode; the waterproof moisture-permeable protective film is used for protecting the wound from external pollution; and a stretchable breathable circuit assembly disposed between the bioelectrical interface film and the protective film. A permeable stretchable circuit assembly includes: a permeable stretchable circuit board; the biosensor is constructed on the permeable and stretchable circuit board; and an electronic component assembled on the permeable stretchable circuit board. The electronic assembly includes: a physiological signal processing module electrically coupled to the biosensor for in situ wound monitoring; and a drug delivery actuation module electrically coupled to the bioelectrical interface membrane for adaptive drug delivery for wound therapy. The provided bandage is more convenient, comfortable and efficient, does not require a large amount of dressing, and thus does not hinder the daily activity and living quality of the patient.

Provided is a system that more accurately estimates the degree of urine accumulation by solving a problem in which the influence of a change in the amount of urine accumulation is obscured when the biological impedance in the vicinity of the bladder is affected as the muscles contract. This urine accumulation degree estimation system (2) comprises: a measurement means for measuring at least two types of biological impedance by energizing a bladder (60) at at least two different frequencies; and an estimation means that estimates the urine accumulation degree of the bladder (60) on the basis of the at least two types of biological impedance. The at least two frequencies include a frequency at which the bladder (60) and the muscles (66) around the bladder can be energized, and a frequency at which the muscles (66) around the bladder can be energized.

The application discloses an electrooculogram signal collection and analysis system and method, relates to the technical field of bioelectric signal collection, and comprises a data processing system, a CPU central processing circuit, a medium-frequency signal generation circuit, an output circuit, a signal collection system and an electrooculogram wave analysis system. The CPU central processing circuit is sequentially connected with the medium-frequency signal generation circuit and the output circuit. The output circuit is adapted to a target to be measured through the signal collection system. The signal collection system transmits collected signals to the electrooculogram wave analysis system, and feeds back the pretreated signals to the CPU central processing circuit. The CPU central processing circuit is in data intercommunication with the data processing system, and closed-loop feedback is performed through the data processing system. The application reduces the contact impedance of the flexible electrode, improves the motion artifact suppression capability, improves the prescription optimization efficiency, and improves the treatment efficiency through clinical verification.

This invention discloses an anaerobic bio-fermentation process for the targeted degradation of municipal sewage sludge, belonging to the field of sludge treatment technology. The process includes: pretreatment and targeted activation of components; staged hydrolysis and acidification for targeted production of short-chain fatty acids; methanogenic fermentation mediated by conductive materials coupled with a microbial electrolysis cell for assistance; multi-parameter dynamic control based on online monitoring and intelligent algorithms; magnetic separation, recovery, and recycling of magnetic conductive materials; in-situ biogas purification and product gradient reflux; solid-liquid separation and residue resource utilization. This invention achieves kinetic matching and metabolic enhancement of hydrolysis and acidification and methanogenesis through the deep linkage of four modules: targeted hydrolysis and acidification, enhanced direct interspecies electron transfer via a microbial electrolysis cell, magnetic material circulation, and intelligent control. Compared with existing technologies, the methane yield is increased by more than 40%, propionic acid accumulation is below 50 mg / L, the fermentation cycle is shortened to 8-10 days, and system energy consumption is reduced by 20%.

The application discloses an artificial wetland-bioelectric Fenton coupling system, which comprises, from bottom to top, a gravel layer, a biological anode carbon felt, a wetland layer and a floating electric Fenton cathode; the biological anode carbon felt is buried in the gravel layer and the wetland layer; the floating electric Fenton cathode floats on the water surface of the wetland layer; the floating electric Fenton cathode comprises an air diffusion waterproof layer and a heterogeneous Fenton catalytic layer; the floating electric Fenton cathode floats up and down with the liquid surface, has a strong oxygen enrichment function, can cancel the aeration of a traditional Fenton reaction, simultaneously needs no additional iron salt catalyst for efficient catalytic oxidation, and increases the pH range of the Fenton reaction. The application combines the artificial wetland and the bioelectric Fenton system, utilizes the interception of the artificial wetland to easily degradable organic pollutants, provides sufficient electric energy for the electric Fenton process through the bioelectrochemical method, reduces the competition of easily degradable organic matters and PPCPs to hydroxyl radicals in the electric Fenton process, and improves the degradation efficiency of the PPCPs.

The application discloses a flexible electrode based on liquid metal screen printing and magnetron sputtering and a preparation method, wherein Ga-In alloy is prepared into nanoparticle ink to realize room-temperature screen printing of high-resolution patterns; TPU hot-press packaging and mechanical stretching activation are utilized to construct a stretchable conductive path; and a Ni / Au layer is magnetron-sputtered on a conductive window to improve the conductivity and stability of the electrode. The electrode process is simple, low in cost and compatible with the existing screen printing production line, and is suitable for wearable electronics, biological electrical monitoring and other fields, and solves the defects of easy brittle fracture of the existing metal electrode and poor conductivity of the conductive polymer electrode.

The invention provides an intelligent push-up device which comprises a base provided with a first bearing part and a second bearing part, and electrode plates are arranged on the first bearing part and the second bearing part respectively; the bioelectrical impedance acquisition module has a first acquisition frequency and a second acquisition frequency, and first dynamic electrical impedance data of a target object in a motion state and first static electrical impedance data of the target object in a static state are acquired at the first acquisition frequency; the second acquisition frequency acquires second dynamic electrical impedance data of the target object in a moving state and second static electrical impedance data of the target object in a static state; and the data processing module is connected with the bioelectrical impedance acquisition module and is used for evaluating the muscle amount of the target object according to the first static electrical impedance data, the second static electrical impedance data and the height information and the weight information of the target object and determining muscle contraction information according to the first dynamic electrical impedance data and the second dynamic electrical impedance data.

The invention relates to intelligent wearable bioelectronic equipment for monitoring and treating temporal muscle and masseter dysfunction and a control method, and belongs to the technical field of medical equipment. The device comprises a circuit board, a core processing unit MCU is arranged on the circuit board, the core processing unit MCU is respectively connected with an ACC triaxial accelerometer, a digital isolator and an NFC wireless communication and charging patch, the ACC triaxial accelerometer is connected with a surface myoelectricity electrode patch through an analog front end, the digital isolator is connected with a stimulation electrode patch through an electrical stimulation driving module, and the NFC wireless communication and charging patch is connected with an NFC wireless communication and charging module. And the NFC wireless communication and charging patch is connected with a reference electrode patch. According to the invention, efficient, safe and comfortable treatment of functional TMD is realized.

1. The name of the design product: bioelectricity detector. 2. The use of the design product: for bioelectricity detection. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

Provided are a method for switching a stimulation scheme and a related product. The method comprises: in a sensing phase, determining, on the basis of an acquired bioelectric signal, a plurality of energy features of the bioelectric signal, wherein the energy features comprise an energy value or an energy proportion; comparing the plurality of energy features with one or more energy thresholds, wherein the one or more energy thresholds are used for defining a plurality of energy intervals; and determining, on the basis of energy intervals to which the plurality of energy features belong, whether to switch the stimulation scheme. The method can effectively avoid misjudgments caused by transient signal changes, so that the switching of the stimulation scheme is more accurate.