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101 results about "Ultrasonography" patented technology
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<ul><li>The images received from the ultrasound are analysed by medical experts. Normal images infer normal results.</li><li>Abnormal images can further lead to advanced tests like CT scan or MRI.</li></ul>
Medical ultrasonic database-oriented index construction method
The invention provides an index construction method for a medical ultrasonic database, and relates to the technical field of ultrasonic data processing, and the method comprises the steps: reading a multi-frame image sequence from a DICOM ultrasonic database, and generating a diagnosis intention vector for each frame; analyzing the diagnosis report, and segmenting the report into a plurality of segments; lesion detection and segmentation are performed on each frame of image to obtain lesion information, and a cross-frame aggregation strategy is adopted to identify a unified lesion object; extracting a feature vector of each focus object to obtain a focus object feature vector; establishing an alignment mapping between the focus object and the report fragment by adopting triple constraints, and generating a focus report mapping table; and constructing a multi-layer index structure, and storing the focus report mapping table and the multi-layer index structure in parallel. According to the method, a multi-layer index structure comprising a metadata index, a text index, a focus object vector index and a cross-modal embedding index is formed, so that efficient organization and focus-level accurate retrieval of medical ultrasonic data are realized.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
Medical ultrasound probe, transducer module, and ultrasound device
PCT designated stageWO2026082182A1Ultrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsUltrasonographyUltrasound device
A medical ultrasound probe, a transducer module, and an ultrasound device. The medical ultrasound probe comprises a first transducer element (22) and a second transducer element (23), wherein the center frequencies of the first transducer element (22) and the second transducer element (23) are different from each other, such that the first transducer element (22) and the second transducer element (23) can detect different depths of an examination region. By means of a combination of the first transducer element (22) and the second transducer element (23), different depths of the same examination region can be probed to obtain images from tissues at different depths, allowing for a more comprehensive examination of organs to assist physicians in diagnosis.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Ultrasonic image segmentation method and device, electronic equipment and storage medium
The invention provides an ultrasonic image segmentation method and device, electronic equipment and a storage medium, and the method comprises the steps: constructing an image segmentation model which comprises a visual encoder module, a text encoder module and an affine transformation guide module; obtaining a to-be-segmented medical ultrasonic image and text auxiliary information representing medical priori knowledge corresponding to the medical ultrasonic image; the medical ultrasonic image is input into the image segmentation model, a segmentation mask image of the medical ultrasonic image is obtained, and the segmentation mask image is used for segmenting different organs in the medical ultrasonic image into different areas; wherein the visual encoder module is used for extracting multi-scale visual features of a medical ultrasonic image, the text encoder module is used for extracting semantic features of text auxiliary information, and the affine transformation guidance module is used for fusing the multi-scale visual features and the semantic features through affine transformation to generate a segmented mask image. According to the invention, accurate recognition and segmentation of the ultrasonic image can be realized.
Owner:WUHAN COLLEGE
A medical ultrasound image recognition method based on generated domain alignment
This invention provides a medical ultrasound image recognition method based on generator domain alignment, relating to the field of image classification technology. The method includes: creating labeled generated medical ultrasound image samples for fine-tuning using a conditional diffusion model, where labels characterize the category corresponding to the generated medical ultrasound image sample; aligning each labeled generated medical ultrasound image sample to the generator domain using an unconditional diffusion model of the generator domain, obtaining a generator domain medical ultrasound image set; fine-tuning the source domain model using the generator domain medical ultrasound image set, obtaining a generator domain model; aligning a target medical ultrasound image to the generator domain using the unconditional diffusion model of the generator domain, obtaining a generator domain target medical ultrasound image; and inputting the generator domain target medical ultrasound image into the generator domain model to obtain a first predicted classification result for the target medical ultrasound image. This transforms a cross-domain task into an intra-domain prediction task, aligning both the source domain model and the target data to the same generator domain, thereby achieving accurate predicted classification results.
Owner:TSINGHUA UNIVERSITY
Stand
The article relating to the present design is a stand that allows the entire electronic device, such as a medical ultrasound probe, to be displayed upright at a slight incline by inserting the grip portion of the electronic device, which is held in one hand, into a hole. The grip portion of the electronic device is approximately 70 mm to 45 mm in width and approximately 25 mm in thickness, and is used in a manner that minimizes gaps when inserted.
Owner:SONY DESIGN CONSULTING INC
A method for in situ ultrasound measurement of skull thickness and sound velocity
This application relates to the field of medical ultrasound measurement technology, specifically providing a method for in-situ measurement of skull thickness and sound velocity using ultrasound. The method includes: acquiring reflected echo data from N transmitting array elements, wherein the N transmitting array elements sequentially transmit ultrasound waves to the location to be measured on the skull, and array elements centrally symmetrical to the transmitting array elements receive the reflected echoes of the ultrasound waves; arranging the reflected echo data from the N transmitting array elements together to form a wave train diagram of the N transmitting array elements; extracting the sound pressure amplitude values corresponding to the normal incident reflection time from the wave train diagram, and superimposing the extracted sound pressure amplitude values to form a superimposed amplitude spectrum, with the maximum superimposed sound pressure amplitude value corresponding to the wave train diagram being the equivalent matching velocity; and calculating the sound velocity and thickness at the location to be measured on the skull based on the equivalent matching velocities at the maximum superimposed sound pressure amplitude values and the normal incident reflection time. This method can accurately measure the sound velocity and thickness of the skull in situ.
Owner:PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)
Electric foaming device for right heart acoustic radiography
The invention belongs to the technical field of medical ultrasonic diagnosis auxiliary equipment, and discloses an electric right heart acoustic radiography foaming device which comprises a device body, the device body comprises a base, a mounting plate is fixedly arranged on the rear side of the base, a driving assembly is arranged on the front side of the mounting plate, and the driving assembly comprises fixing frames fixed to the upper side and the right side of the mounting plate; a stepping motor is fixedly arranged at the top of the fixing frame, a ball screw is fixedly arranged at the tail end of a main shaft of the stepping motor, a sliding block is spirally arranged on the outer side of the ball screw in a sleeving mode, and a connecting rod is fixedly arranged at the bottom of the sliding block, so that accurate controllability of power transmission and visual adjustment of parameters in the contrast agent injection process are achieved; specifically, key parameters such as injection speed and dosage can be accurately set through the operation panel, a traditional manual injection mode is replaced, and the stability of the foaming effect of the contrast agent is guaranteed.
Owner:ZHOUSHAN HOSPITAL
Portable medical ultrasound imaging system
PendingUS20260026783A1Organ movement/changes detectionUltrasonic/sonic/infrasonic dianostic techniquesUltrasonographyHuman body
A portable ultrasound imaging system includes a probe and a personal computer. The personal computer is connected to the probe by way of a THUNDERBOLT I / O interface. The probe includes a transducer that alternately transmits positive and negative ultrasound pulses to a target being imaged, which is a human body. Echoes of the ultrasound pulses reflected from internal structures of the human body are sampled from the transducer, digitized into echo data, and streamed to the personal computer over the THUNDERBOLT I / O interface. In the personal computer, scanlines are generated from the echo data. Overlapping scanlines are coherently compounded and positioned together to form an ultrasound image.
Owner:MONOLITHIC POWER SYSTEMS INC
Medical ultrasonic examination system and method
The invention discloses a medical ultrasonic examination system and method.The medical ultrasonic examination system comprises a base, a bed body movably installed on the base and an air bag assembly arranged on the bed body in a matched mode; the air bag assembly comprises a plurality of first air bags arranged in the length direction of the bed body, the first air bags can be driven to be inflated or deflated to be shrunk, and the first air bags can be driven to move in the length direction of the bed body; when the first air bags are driven to be inflated and expanded, the multiple first air bags jointly wrap and restrain a subject lying on the bed body on the back; when at least part of the first air bag is driven to move in the length direction of the bed body and / or deflated and contracted, a target detection part of a detected person on the bed body can be exposed. Therefore, the posture of the detected person can be automatically adjusted, the target detection part can be automatically exposed, excellent safety is achieved, and the overall efficiency of ultrasonic detection is improved.
Owner:SHANGHAI JINGAN DISTRICT SHIBEI HOSPITAL
Medical ultrasound image segmentation method based on geometric guidance and concept perception fusion
ActiveCN122023813AImage analysisInternal combustion piston enginesPattern recognitionUltrasonography
The invention relates to the field of image processing, and provides a medical ultrasonic image segmentation method based on geometric guidance and concept perception fusion, which is characterized in that a geometric guidance text generation module is designed, and high-quality medical text description is automatically generated according to connected component analysis and multi-dimensional geometric analysis; according to the method, text-free segmentation is converted into text-guided segmentation, the problems that high-quality text description is limited in number, difficult to manufacture and high in cost are solved, a concept-aware cross-modal fusion module is designed, multi-scale space alignment and medical knowledge graph modeling are utilized, the problem that cross-modal fusion is insufficient is solved, and the cross-modal fusion efficiency is improved. According to explicit modeling of medical priori knowledge, professional knowledge in the medical field is fully utilized to guide a fusion process and a segmentation decision, a self-adaptive segmentation decoding module is further provided, an optimal strategy is dynamically selected according to feature complexity, the efficiency is improved while the precision is ensured, and the method is suitable for large-scale popularization and application. According to the invention, the precision and efficiency of medical ultrasonic image segmentation are improved.
Owner:JIANGXI NORMAL UNIV
Artificial Intelligence-Based Intelligent Analysis Method and System for Ultrasound Images
This invention relates to the field of AI analysis technology for medical ultrasound images, specifically to an intelligent ultrasound image analysis method and system based on artificial intelligence. The method includes: acquiring ultrasound image sequences of a target patient and performing standardized preprocessing; extracting deep features through an anatomical structure recognition network to generate an anatomical structure description containing boundary contour coordinate sequences, tissue type classification identifiers, and spatial location depth information; using a lesion feature discrimination model to perform multi-dimensional feature fusion analysis on the three types of information to obtain preliminary lesion localization and attribute descriptions; then verifying spatiotemporal continuity based on adjacent frames of the image sequence to check the consistency of lesion evolution and generate a verification report; comparing the report with a medical knowledge base template to output an auxiliary diagnostic conclusion with diagnostic opinions and confidence ratings. This invention can enrich the dimensions of anatomical structure representation, improve the accuracy of lesion discrimination, ensure the temporal consistency of analysis results, and enhance the reliability of auxiliary diagnostic conclusions.
Owner:GUANGZHOU FIRST PEOPLES HOSPITAL (GUANGZHOU DIGESTIVE DISEASE CENT GUANGZHOU FIRST PEOPLES HOSPITAL GUANGZHOU MEDICAL UNIV THE SECOND AFFILIATED HOSPITAL OF SOUTH CHINA UNIV OF TECH)
A medical ultrasound image dataset construction method, system, and storage medium
The application relates to a medical ultrasound image dataset construction method, which comprises the following steps: acquiring an ultrasound image for labeling; training a multi-modal segmentation model based on the labeled data; acquiring a to-be-labeled ultrasound image, calculating the similarity between the to-be-labeled ultrasound image and the labeled ultrasound image to select a reference image; performing weighted average on the mask corresponding to the reference image based on the similarity to obtain a fusion mask; performing weighted fusion on the circumscribed rectangular region corresponding to the mask of the reference image based on the similarity to obtain a bounding box prompt; taking the to-be-labeled ultrasound image, the corresponding fusion mask, a text label and the bounding box prompt as inputs of the multi-modal segmentation model to generate a segmentation result, adding the segmentation result to a dataset after confidence evaluation, and performing subsequent model training and reference image selection. Compared with the prior art, the application significantly reduces the workload of manual labeling, reduces the professional requirements for personnel, and greatly improves the data set labeling efficiency and the manual correction speed.
Owner:SHANGHAI JIAOTONG UNIV +1
Ultrasonic permeable products
PendingJP2025538279AUltrasonic/sonic/infrasonic diagnosticsAnalysing solids using sonic/ultrasonic/infrasonic wavesUltrasonographyMedicine
An ultrasonically transparent material used to transmit ultrasonic energy in medical ultrasound or non-destructive testing (NDT) applications.
Owner:RIVANNA MEDICAL INC
A skin marking system for ultrasound imaging, a dedicated coupling agent, and a method of using the same.
This invention discloses a skin marking system for ultrasound imaging, a dedicated coupling agent, and its application method, relating to the field of medical ultrasound imaging auxiliary equipment and medical coupling agents. It includes a dedicated photocurable coupling agent and a specially designed ultrasound probe. The dedicated photocurable coupling agent comprises a water-soluble medical ultrasound coupling agent matrix, a photocurable hydrogel precursor, a photoinitiator, and a color developer. The specially designed ultrasound probe includes a probe housing with a built-in ultrasound transducer and a probe end face for contacting the skin. At least one ultraviolet light source is integrated in the central region of the probe end face. The relative position of the ultraviolet light source and the ultrasound transducer is spatially calibrated to establish a preset coordinate mapping relationship between the irradiation area of the ultraviolet light source and the ultrasound scanning area of the ultrasound transducer. This invention achieves simultaneous and precise skin marking and diagnostic guidance for ultrasound imaging through an ultrasound probe integrating an ultraviolet light source and a photocurable dedicated coupling agent.
Owner:WOMEN & CHILDRENS MEDICAL CENTER AFFILIATED WITH GUANGZHOU MEDICAL UNIVERSITY
Ultrasonic tomography method based on virtual data reconstruction
PendingCN122004941AUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsUltrasonographyComputation complexity
The invention provides an ultrasonic tomography method based on virtual data reconstruction, and relates to the technical field of medical ultrasound. The method specifically comprises the steps of performing wave field inference based on frequency domain scattering wave observation data to realize virtual data reconstruction and obtain frequency domain virtual scattering wave observation data, and performing multi-scale inversion according to the frequency domain virtual scattering wave observation data to optimize a sound velocity model so as to generate ultrasonic tomography. According to the technical scheme provided by the invention, the calculation cost of wave field solution in the operation process can be effectively reduced by reducing the wave field calculation domain under the condition of ensuring the approximate traditional FWI inversion precision, the calculation complexity is reduced, and the ultrasonic tomography efficiency is improved.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI
Ultrasonic temperature measurement system and method based on multi-feature fusion
PendingCN121977716AThermometers using physical/chemical changesDesign optimisation/simulationUltrasonographyNerve network
The invention discloses an ultrasonic temperature measurement method and system based on multi-feature fusion, and belongs to the technical field of medical ultrasonic monitoring. The system comprises a signal acquisition module, a data processing module and an output module. The method comprises the following steps: acquiring an original radio frequency signal acquired by a monitoring probe spatially associated with a focused ultrasound treatment probe; extracting three temperature rise characteristics based on thermal strain, nonlinear sound attenuation and a Nakagami distribution statistics principle in parallel; inputting the multi-parameter characteristics into a pre-trained knowledge distillation physical information neural network model, and directly outputting a predicted temperature value; and the accumulated equivalent heat dose can be calculated according to the predicted temperature to carry out damage judgment. Through multi-parameter complementary fusion and a lightweight intelligent model, accurate and real-time non-intrusive monitoring of the temperature change of a high-temperature treatment interval greater than 50 DEG C is realized, the temperature measurement root mean square error is less than or equal to 0.8 DEG C, the single-frame processing time is less than or equal to 5ms, meanwhile, standardized thermal damage assessment is provided, and the controllability and safety of focused ultrasonic treatment are improved.
Owner:CHONGQING MEDICAL UNIVERSITY
A method for scheduling outpatient visits based on medical ultrasound department data
This invention relates to the field of medical information technology and scheduling, and discloses a method for scheduling appointments based on medical ultrasound department data. The method addresses the hidden conflict of existing systems neglecting the reprocessing of intracavitary probes, leading to idle examination rooms but no available probes, and the time drift caused by continuous high-load scanning by operators. This solution collects patient requests and extracts probe status, estimating the expected time to offset individual differences; reads historical probe reprocessing events to obtain the processing time including the cleaning to storage and release cycle; combines the above time parameters to extrapolate the actual available time for each candidate appointment; further, it calculates the comprehensive cost of the candidate appointments based on historical delay results, selects the scheme with the minimum cost for dynamic scheduling, and corrects the historical average based on measured data in a closed-loop manner. This invention effectively alleviates queuing deadlock and improves the accuracy of resource scheduling in ultrasound departments.
Owner:FUDING CITY HOSPITAL
Spatial compounded harmonic imaging for medical ultrasound applications
A portable ultrasound imaging system includes a probe and a personal computer. The personal computer is connected to the probe by way of a THUNDERBOLT I / O interface. The probe includes a transducer that alternately transmits positive and negative ultrasound pulses to a target being imaged, which is a human body. Echoes of the ultrasound pulses reflected from internal structures of the human body are sampled from the transducer, digitized into echo data, and streamed to the personal computer over the THUNDERBOLT I / O interface. In the personal computer, scanlines are generated from the echo data. Overlapping scanlines are coherently compounded and positioned together to form an ultrasound image.
Owner:MONOLITHIC POWER SYSTEMS INC
Medical ultrasonic probe sleeve
ActiveCN224140835UUltrasonic/sonic/infrasonic diagnosticsSurgical furnitureUltrasonographyMechanical engineering
Owner:临沂市检验检测中心
Improved cycle gan based ultrasound image speckle noise reduction method
An improved ultrasound image speckle noise reduction method based on cycle generative adversarial network, obtains GAD noise reduction image of medical ultrasound image data set; the GAD noise reduction image is scored using the proposed ENR noise reduction image quality evaluation index, and the image used as the training set and the test set is screened out;Introduce the cycle consistency structure, build the cycle generative adversarial network model CycleGAN for noise reduction, and use two sets of generators and discriminators for bidirectional training. Training is carried out using the training set, and the appropriate CycleGAN model is determined according to the checkpoint and the noise reduction result;In the online stage, the test set image is denoised by the trained CycleGAN model, and the ENR is used to evaluate the image noise reduction quality. The present application can obtain excellent noise reduction effect for medical ultrasound images contaminated by speckle noise.
Owner:SHANGHAI UNIV
Method and device for extracting quantitative information in medical ultrasound
Disclosed is a method for extracting quantitative information by a device operated by at least one processor. The method includes: receiving pulse-echo data obtained from sensors of an ultrasound probe according to beam patterns radiated into a tissue; obtaining a location of a region of interest (ROI); and extracting quantitative information on the ROI from the pulse-echo data by using a neural network trained to extract quantitative information from input data.
Owner:BARRELEYE INC
Graphical User Interface for Displaying Ultrasonic Images in Electronic Devices
1. Name of the product in this design: Ultrasonic Imaging Graphical User Interface for Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design feature of this product is its graphical user interface. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Design 1 is designated as the basic design. 6. Purpose of the graphical user interface: Used in the field of medical ultrasound, mainly for displaying ultrasound images. The control keys at the bottom of the screen are used to indicate the functions of the keys on the corresponding physical keyboard. 7. Other situations requiring explanation: Other explanation: Due to conventional design, other views are omitted for electronic devices.
Owner:WUXI CHUDIAN TECH
A method for automatically generating visible light images from medical ultrasound images
This invention discloses a method for automatically generating visible light images from medical ultrasound images, comprising the following steps: 1. Strictly aligning each ultrasound image and visible light image, and resampling the visible light image to match the resolution and field of view of the ultrasound image; 2. Further correcting the intensity non-uniformity of each ultrasound image; 3. Standardizing the intensity of ultrasound images from different subjects; 4. Separating the uterine region from the background region in the visible light image; 5. Establishing a dataset; 6. Data augmentation, increasing the amount of training data; 7. Pre-training using the ImageNet dataset; 8. Loading the pre-trained model and adding an output layer; 9. Training the TransUNet network, evaluating the method's performance, inputting the ultrasound image into the trained TransUNet network, and outputting the corresponding visible light image. This invention can generate visible light images in real time and accurately from input ultrasound images.
Owner:JIANGSU JIYUAN MEDICAL TECH CO LTD
System for automatic measurement of renal ultrasound image cortex thickness and evaluation of fibrosis degree
This invention relates to the field of medical ultrasound image processing technology, and in particular to an automatic measurement system for cortical thickness and fibrosis assessment of renal ultrasound images. The system includes a corticomedullary semantic segmentation module, a cortical thickness measurement module, a fibrosis index extraction module, and a fusion regression module. The system performs corticomedullary semantic segmentation on renal ultrasound images to obtain masks of the cortical and medullary regions. Based on the segmentation results, it automatically calculates millimeter-level cortical thickness and simultaneously extracts fibrosis-related indicators such as echo uniformity and corticomedullary echo ratio. The system outputs a fibrosis prediction score through a fusion regression model, providing an objective quantitative reference for non-invasive assessment of chronic kidney disease.
Owner:WUHAN DONGHU UNIV
Medical ultrasonic equipment probe mounting mechanism and medical ultrasonic equipment
ActiveCN224140838UUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsUltrasound deviceUltrasonography
The utility model discloses a medical ultrasonic equipment probe mounting mechanism and medical ultrasonic equipment, and relates to the technical field of medical instruments. The medical ultrasonic equipment probe mounting mechanism comprises a probe cup assembly, wherein the probe cup assembly comprises a connecting module and a probe cup; the connecting module is movably connected to the ultrasonic equipment body, and when the connecting module moves, the probe cup on the connecting module can be driven to move around the ultrasonic equipment body, so that the position of the probe cup in the horizontal direction is adjusted. When an operator operates the ultrasound device body, the patient and the ultrasound device body are horizontally located at different positions in the space. In the mounting mechanism, the probe cup is connected to the ultrasonic equipment main body through the connecting module, when an operator uses the probe, the position of the probe cup is driven through the connecting module, and the position of the probe in the horizontal direction can be correspondingly adjusted, so that the probe cup is adjusted to be within a reasonable size range in which manual operation is convenient; an operator can take and place the probe more conveniently, and the device is more in line with man-machine operation experience.
Owner:SONOSCAPE MEDICAL CORP
Transcranial ultrasound devices and methods
Exemplary embodiments provide systems and methods for portable medical ultrasound for transcranial ultrasound imaging. Preferred embodiments utilize a hand portable, battery powered system having a display and a user interface operative to control imaging and display operations. A keyboard control panel can be used alone or in combination with touchscreen controls to actuate a graphical user interface. The system includes a transducer assembly to image, measure and monitor a condition of a patient or deliver a therapeutic signal to the patient.
Owner:TERA TECH CORP
Shadow perception double-consistency collaborative learning system for ultrasonic image segmentation
PendingCN121353672ACharacter and pattern recognitionBiological modelsUltrasonographyAutomatic segmentation
The invention belongs to the technical field of medical image semantic segmentation, and particularly relates to an ultrasonic image segmentation-oriented shadow perception dual-consistency collaborative learning system, which comprises an acquisition module for extracting an intra-parturition maternal ultrasonic video to obtain an intra-parturition maternal ultrasonic image; the construction module is used for constructing an SADCL framework and performing training; and the segmentation module is used for inputting the maternal and fetal ultrasonic images during delivery into the trained SADCL architecture, carrying out automatic segmentation of an anatomical structure, and obtaining an ultrasonic image segmentation result. According to the method, accurate and robust semantic segmentation of the medical ultrasonic image with serious acoustic artifacts (especially shadow artifacts) is realized under the condition of limited annotation data.
Owner:JINAN UNIVERSITY
Mainboard for medical ultrasound and direct current power supply circuit
PendingCN122026686AUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsUltrasonographyDC - Direct current
A mainboard for medical ultrasound and a DC power supply circuit, the mainboard comprising a core circuit, a peripheral circuit, and a DC power supply circuit for supplying power, the DC power supply circuit comprising a processor power supply device, a co-frequency out-of-phase frequency controller, and a plurality of local power supply devices. When the system ready signal indicates the working state, the same-frequency out-of-phase frequency controller generates a plurality of phase shift frequency signals with the same frequency and different phases according to the core frequency signal. The processor power supply device and the local power supply device respectively generate core conversion power and peripheral conversion power according to the core frequency signal and the phase shift frequency signal. Peripheral conversion power is generated through phase shift frequency signals with the same frequency and different phases, so that generated electromagnetic interference frequency sources are reduced, and the accuracy of ultrasonic imaging is improved.
Owner:ADVANTECH CO LTD
Method and device for synchronous detection of medical ultrasound image and electrocardio signal
ActiveCN117017315BUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsUltrasonographyEcg signal
The application relates to a medical ultrasound image and electrocardio signal synchronous detection method, device, system, computer equipment, storage medium and computer program product. The method comprises the following steps: displaying an observation object image in periodic motion and a corresponding electrocardio signal waveform image of a periodic electrocardio signal; determining an electrocardio data distance relative relationship according to the distance between an electrocardio data update point at a detection moment and a previous QRS wave peak in the electrocardio signal waveform image, and the distance between two adjacent QRS wave peaks at the detection moment; determining an object motion distance relative relationship according to the distance of an observation object relative motion starting position at the detection moment in the observation object image and the reciprocating motion range distance; and detecting the synchronization performance between the ultrasound image of the to-be-detected ultrasonic equipment and the electrocardio signal according to the electrocardio data distance relative relationship and the object motion distance relative relationship. The method can accurately detect the synchronization performance between the ultrasound image of the ultrasonic equipment and the electrocardio signal.
Owner:WUHAN UNITED IMAGING HEALTHCARE CO LTD
A sound field modulation device and method based on a multifunctional acoustic metasurface
This invention discloses a sound field modulation device and method based on a multifunctional acoustic metasurface. The acoustic metasurface is installed at the acoustic radiation end of a partitioned piezoelectric transducer for phase modulation of the sound waves excited by the transducer. The partitioned piezoelectric transducer includes partitioned piezoelectric ceramics and a control circuit. The partitioned piezoelectric ceramics are circular and radially divided into an inner circular electrode partition and an outer annular electrode partition. Each electrode partition is electrically connected to the control circuit to independently excite different electrode partitions to generate sound waves. The acoustic metasurface is radially divided into phase modulation regions corresponding one-to-one with the electrode partitions of the partitioned piezoelectric ceramics. Each phase modulation region is equipped with a different phase coding pattern to form sound fields with different functions under different electrode partition excitation states. This invention achieves a multifunctional sound field by switching the partitioned electrodes, which can significantly improve the efficiency of detection and treatment in non-destructive testing and medical ultrasound, and broaden the utilization rate of planar ultrasound transducers.
Owner:ZHEJIANG UNIV