30 results about "Doppler ultrasonics" patented technology

The invention discloses a Doppler ultrasonic diagnosis system for dysphagia detection, and belongs to the technical field of Doppler ultrasonic diagnosis. The method comprises the following steps: respectively measuring the geniolingual muscle movement, swallowing time, tongue movement and the distance between the tongue bone and the thyroid cartilage of a stroke patient in a B-type ultrasonic mode and an M-type ultrasonic mode, recording test data after multiple swallowing tests, calculating to obtain an average value of the geniolingual muscle movement, the swallowing time, the tongue movement and the distance between the tongue bone and the thyroid cartilage, and calculating the average value of the geniolingual muscle movement, the swallowing time, the tongue movement and the distance between the tongue bone and the thyroid cartilage. Then the measurement results of the swallowing time and the distance between the tongue bone and the thyroid cartilage are used as evaluation and diagnosis bases for diagnosis, so that objective and accurate diagnosis bases are provided for the treatment and rehabilitation process of the swallowing dysfunction of a stroke patient, and nursing personnel can evaluate and diagnose the swallowing dysfunction after the stroke by using a simple B-ultrasonic instrument at the bedside; and the diagnosis accuracy of medical personnel is improved.

The invention relates to a brain small vessel blood flow monitoring method and system based on ultrasonic imaging, and the method comprises the steps: setting pulse Doppler ultrasonic imaging devices at different positions, and carrying out the color pulse Doppler imaging of the artery and vein in a brain small vessel through the pulse Doppler ultrasonic imaging devices, arranging according to spatial positions corresponding to different positions to obtain three-dimensional color pulse Doppler imaging; in the process of color pulse Doppler imaging, comparing and analyzing a current frame of color pulse Doppler image and a previous frame of color pulse Doppler image to obtain an analysis result for optimizing a subsequent color pulse Doppler image; blood flow power information is extracted from the three-dimensional color pulse Doppler imaging, and the blood flow change condition of the small cerebral vessels is obtained based on the blood flow power information. The brain small vessel blood flow monitoring system can realize real-time and dynamic monitoring of brain small vessel blood flow, has high clinical application value, and provides a new technical means for prevention and treatment work of brain small vessel diseases.

The application discloses an automatic needle insertion method combining a blood flow optimization model with a neural network. The method first calculates the blood vessel position and blood flow velocity distribution of a needle insertion area according to blood flow information measured by automatic ultrasonic scanning by means of the Doppler ultrasonic principle, then establishes a blood flow relative velocity optimization model and a neural network with a selection function, and decides the optimal needle insertion point and needle insertion angle on the basis of physical measurement results, and finally simulates the needle insertion path by means of a neural network with a learning function according to the needle insertion method of a professional. The method can be used for needle insertion of subcutaneous blood vessels of limbs and other body parts, and overcomes the difficulty of manual needle insertion when the blood vessel is not visible to the naked eye, thereby providing technical assistance for self-rescue and first aid in an environment lacking professional personnel.

The invention provides a system and a method for monitoring autologous internal arteriovenous fistula of a hemodialysis patient, and relates to the technical field of blood monitoring. Vein data, fat data and muscle data of the patient in the measuring process are collected by analyzing the Doppler ultrasonic blood flow measuring process, and the autologous internal arteriovenous fistula of the patient is obtained by analyzing a vein three-dimensional model; acquiring a vein inner wall area deviation index for reflecting the deviation degree of the vein area of the patient measured by the color Doppler ultrasonic wave, and performing correlation analysis on the fat data and the muscle data; and generating a flow velocity deviation index for reflecting the blood flow measurement deviation degree caused by muscle and fat thickness in the Doppler ultrasonic blood flow velocity measurement process, comprehensively analyzing the flow velocity deviation index and the flow velocity deviation index to generate a blood flow deviation index, comparing the blood flow deviation index with a threshold value, and outputting the blood volume monitoring accuracy level.

According to the ultrasonic imaging equipment and the Doppler ultrasonic imaging method thereof, in the ultrasonic multi-mode ultrasonic image imaging process, ultrasonic scanning is carried out in an alternating mode of scanning a complete ultrasonic B image and scanning a complete ultrasonic C image, so that when the ultrasonic C image is scanned, the ultrasonic B image and the ultrasonic C image are scanned, and the ultrasonic B image and the ultrasonic C image are scanned; although the region of interest still needs to be sampled for multiple times, the ultrasonic B image does not need to be scanned alternately between sampling, so that the sampling period is shortened, and the speed measurement scale is improved. Ultrasonic waves emitted during C-mode scanning are non-focused waves, a larger scanning area can be covered at a time, the sampling period is shortened as well, and therefore the speed measuring scale is improved.

The utility model provides an audio-visual guide wire for accurately positioning an artery opening lesion stent, which is characterized in that a second mark point and a first mark point which are embedded in the guide wire are sequentially arranged behind the head end of the guide wire at intervals, and the first mark point and the second mark point are annular non-X-ray-transmitting mark points; a Doppler ultrasonic probe is embedded in the first mark point, and the second mark point is located at the sampling volume of the Doppler ultrasonic probe; the distance between the first marking point and the second marking point is 3mm, and a near-end mark of the stent is implanted between the first marking point and the second marking point. According to the utility model, the second marking point is arranged at a certain distance from the head end of the guide wire, the first marking point is arranged behind the second marking point, and the ultrasonic transducer probe is embedded in the first marking point, so that the ultrasonic transducer probe not only emits pulse ultrasonic waves, but also receives reflected signals of moving blood cells (sampling volume) in front of the ultrasonic transducer probe to the pulses; therefore, the lesion position can be quickly and accurately positioned.

The invention relates to the field of flow regulation and control, and discloses an intelligent fluid flow regulation and control method and system based on environmental perception, and the method comprises the following steps: measuring the real-time flow characteristics of a fluid in a flow channel through a Doppler ultrasonic flowmeter, and constructing a fluid flow prediction model; and the fluid flow change condition in the target flow channel is predicted through the fluid flow prediction model, a fluid flow regulation and control scheme is generated based on the fluid flow change condition in the target flow channel, and finally scheme regulation and control are achieved. The performance of the fluid regulation and control system can be improved, resources are reasonably utilized, the environment is protected, energy is saved, consumption is reduced, and safe operation of the system can be guaranteed.

The invention discloses a blood pressure detection device with a blood vessel positioning function and a blood vessel positioning method, and belongs to the technical field of medical detection equipment. The ultrasonic blood pressure detection cuff comprises a cuff body, an air bag and a Doppler blood flow detection module, the Doppler blood flow detection module comprises a position adjusting module and an ultrasonic sensor, the track direction of the position adjusting module is consistent with the winding direction of the cuff, and accurate positioning of the sensor can be achieved. Blood flow signals are detected through the Doppler ultrasonic technology, and the blood pressure can be measured more accurately in combination with the air bag pressurization and decompression process. The system can be widely applied to the scenes of family medical treatment, clinical diagnosis, ICU, operating rooms and the like.

The invention relates to the technical field of lower limb venous thrombosis prevention, in particular to a lower limb venous thrombosis prevention system based on Doppler ultrasonic blood flow detection feedback, which comprises an upper computer, a single chip microcomputer system control device, an inflation and deflation device, a flexible ultrasonic blood flow velocity detection sensor and a lower limb venous thrombosis prevention device, the upper computer is used for acquiring the blood flow velocity and sending a control instruction to the single chip microcomputer system control device; the single-chip microcomputer system control device is used for controlling the flexible ultrasonic blood flow velocity detection sensor and the inflation and deflation device to work and can collect ultrasonic Doppler echo signals. The lower limb venous thrombosis prevention device is used for preventing thrombosis; the flexible ultrasonic blood flow velocity detection sensor is used for generating ultrasonic signals and receiving Doppler echo signals of the ultrasonic signals. The blood flow velocity can be accurately calculated, the flexible and portable lower limb venous thrombosis prevention device is used for preventing thrombosis and monitoring the treatment effect in real time, and the lower limb venous thrombosis prevention device is easy to operate and convenient to use.

The utility model belongs to the field of flow monitoring, and particularly relates to a liquid flow monitoring device which comprises a support, a mounting rod, a sealing ring, a Doppler ultrasonic flowmeter and an ultrasonic mud level meter. The support is used for being installed on a pipeline outside a detection opening, one end of the installation rod is connected with the support, the other end of the installation rod can be inserted into the pipeline through the detection opening, and the installation rod serves as a carrier for installing the Doppler ultrasonic flowmeter and the ultrasonic mud level meter. The sealing ring is used for being arranged between the installation rod and the detection opening so as to seal the gap between the installation rod and the detection opening. The Doppler ultrasonic flowmeter is arranged on the mounting rod and used for monitoring the liquid level and the flow speed in the pipeline. The ultrasonic mud level meter is arranged on the mounting rod and used for monitoring the depth of sludge at the bottom of the pipeline. On the basis of the known size of the pipeline, the liquid level in the pipeline monitored by the Doppler ultrasonic flowmeter and the sludge depth monitored by the ultrasonic sludge level meter are matched, and the liquid flow in the pipeline in the non-full pipe state and when sundries are deposited at the bottom of the pipeline can be calculated.

This invention relates to the field of water conservancy testing equipment and discloses an installation mechanism for a Doppler ultrasonic flowmeter used in downhole exploration. The mechanism includes an installation plate and further comprises: a storage unit disposed on the upper part of the installation plate for storing the flowmeter body; a fixing unit disposed on the lower part of the installation plate for fixing the flowmeter body to the well wall; a counterweight unit disposed on the lower part of the fixing unit for fixing the device to the bottom of the well; and a winding unit disposed on the fixing unit and connected to the flowmeter body via a traction rope for winding and unwinding the flowmeter body. This invention allows for the replacement and maintenance of the flowmeter body without requiring manual descent to the bottom of the well, saving time and effort. The device can also be used to change the installation method of the flowmeter body according to the conditions at the bottom of the well, making it highly practical.

The application relates to a blood flow velocity determination method, device and computer equipment. The method comprises the following steps: acquiring a blood flow velocity calibration angle when blood flow velocity ultrasonic detection is performed on a target object; calibrating an ultrasonic echo signal corresponding to the target object according to the blood flow velocity calibration angle to obtain a calibrated echo signal; and determining a blood flow velocity image of the target object according to the calibrated echo signal. The method can improve the correction accuracy of tissue movement or blood flow velocity in Doppler ultrasonic detection from the Doppler principle itself, and reduce the difference between the tissue velocity detection result and the actual tissue velocity of the target object.

The invention discloses a portable intelligent Doppler fetal heart monitor, and relates to the field of fetal heart monitoring, the Doppler fetal heart monitor is configured to be an integrated fetal heart monitoring terminal with fetal heart signal enhancement processing and early warning processing, the integrated fetal heart monitoring terminal comprises a monitor main body and a probe, the monitor main body is arranged in a column shape, and the probe is arranged on the monitor main body. The monitor main body is provided with a main body shell, a signal processing and analyzing chip, a storage battery, a data storage module and a wireless transmission module which are integrated in the main body shell, and a display and man-machine interaction panel, a state indicating lamp group and a loudspeaker which are integrated on the outer side of the main body shell; the probe is arranged at the front side end of the main body shell and connected with the integrated interface through a rotary positioning ball head, and the probe is a miniature Doppler ultrasonic probe; according to the Doppler fetal heart monitor, the monitor body is combined with the miniature Doppler ultrasonic probe, and the problems that existing equipment is poor in portability, weak in signal processing and single in function are solved.

The embodiment of the invention provides a method and device for determining evaluation parameters of a heart, equipment and a storage medium. The method comprises the following steps: acquiring a Doppler ultrasonic spectrum image of the heart; determining each cardiac cycle based on the Doppler ultrasound spectrum image; and determining the evaluation parameters for evaluating the cardiac function based on each cardiac cycle and the Doppler ultrasonic spectrum image, so that the evaluation parameters can be automatically identified based on the image, the detection efficiency can be improved, and the accuracy of the determined evaluation parameters can be improved.

1. The name of the design product: charging base. 2. The use of the design product: charging for battery or electronic equipment containing battery, such as Doppler ultrasonic surgical instrument equipment, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention provides a grate cooler abnormal material detection system and an implementation method, the grate cooler abnormal material detection system is characterized by comprising a Doppler ultrasonic detection module, an infrared and image recognition module, a cooling system module and a data analysis and report module, the Doppler ultrasonic detection module is used for detecting the position and size of large cement clinker and the thickness of a material bed; the infrared and image recognition module is used for recognizing edge column red materials; according to the infrared and image recognition system, through the vanadium oxide non-refrigeration type detector, a specific algorithm and high-temperature adaptability design, the infrared and image recognition system can stably work in the grate cooler environment with the high temperature of 200-1000 DEG C and much dust, and the problems that common infrared rays are reduced in precision at the high temperature and prone to being interfered are solved; according to the method, the position and the size of the large cement clinker are detected in combination with the Doppler ultrasonic technology, accurate detection and treatment of abnormal materials of the grate cooler are achieved, the problems that traditional manual detection is low in efficiency and poor in precision are solved, and the stability and the intelligent level of cement production are improved.

The invention discloses a thyroid cancer invasiveness evaluation model based on an intelligent image. The thyroid cancer invasiveness evaluation model comprises the following steps: acquiring thyroid nodule ultrasonic image data and clinical text data; performing feature extraction on the thyroid nodule ultrasonic image data to obtain an image feature map; performing feature extraction on the clinical text data to obtain a text feature map; fusing the image feature map and the text feature map, and further performing feature extraction and classification to obtain an evaluation result; wherein the thyroid nodule ultrasonic image data comprises a cross section image of a thyroid nodule, a longitudinal section image of the thyroid nodule, an elastic image of the thyroid nodule and a Doppler ultrasonic image of the thyroid nodule; the clinical text data comprises basic information of a patient and ultrasonic feature information of the thyroid nodule. According to the evaluation model, comprehensive and accurate evaluation of the invasiveness of the thyroid nodules is realized, a powerful auxiliary tool can be provided for clinical diagnosis, and the accuracy and efficiency of diagnosis are effectively improved.

The invention provides ultrasonic imaging equipment and a Doppler ultrasonic imaging method. The ultrasonic imaging equipment has two ultrasonic scanning strategies, namely an interpenetrating scanning strategy and a non-interpenetrating scanning strategy; scanning parameters are obtained firstly, and then calculation is carried out according to the scanning parameters; scanning is carried out according to an interpenetration scanning strategy to obtain the number of times of interpenetration scanning needed by a frame of ultrasonic B image; then, when the number of times of alternate scanning does not exceed a preset threshold value of the number of times, executing an alternate scanning strategy to scan the ultrasonic image B and the ultrasonic image C so as to obtain a multi-modal image obtained according to the image B and the image C; and when the number of times of alternate scanning exceeds a preset threshold value of the number of times, executing a non-alternate scanning strategy to scan the ultrasonic image B and the ultrasonic image C so as to obtain a multi-modal image obtained according to the image B and the image C. Therefore, the self-adaption of the B-mode and C-mode duplex scanning strategy is realized, and the scanning efficiency and the image quality can be well considered in the ultrasonic inspection process.

The utility model discloses a light and thin fetal heart monitor. The light and thin fetal heart monitor comprises a main machine and a Doppler ultrasonic probe connected with the main machine through a connecting line. The host comprises a face shell, a rear shell matched with the face shell, a mainboard, a loudspeaker, a battery bin, a key cap, pressing keys welded to the mainboard, a display screen and a rechargeable battery arranged in the battery bin, wherein the mainboard, the loudspeaker, the battery bin and the key cap are arranged between the face shell and the rear shell. The face shell is provided with a key groove, a horn hole and a screen window. The key cap is arranged in the key groove; a screen coaming is arranged on the inner side of the face shell, and the display screen is arranged in the screen coaming. According to the utility model, the display screen is directly welded on the mainboard, and the screen coaming is arranged on the inner side of the face shell, so that screen seats are reduced, the thickness can be effectively reduced, the thickness of the host can be thinned, and a user can conveniently hold the host by hand for application.

The invention belongs to the technical field of ultrasonic monitoring, and discloses a Doppler ultrasonic monitoring method and device for intracranial pressure, and the method comprises the steps: employing an ultrahigh frequency Doppler ultrasonic probe to measure the pulse wave of a neck artery; by analyzing the pulse wave map, pulse wave peripheral resistance parameters closely related to intracranial pressure are extracted; the quantitative relation between the pulse wave parameters and the intracranial pressure is obtained through comparison with the peripheral resistance parameters under the real intracranial pressure condition; 24-hour intracranial pressure monitoring of a patient is realized by continuously acquiring the pulse wave parameters of the neck artery. The technology provided by the invention is used for monitoring the intracranial pressure and also can give an alarm to the occurrence of cerebral apoplexy. The device designed by the invention is small in size, light in weight and convenient to wear, does not influence the living of a patient, and can really realize 24-hour noninvasive monitoring of the intracranial pressure.

1. Name of the product in this design: Doppler Ultrasonic Surgical Instrument. 2. Purpose of this design: This product is a Doppler ultrasound surgical instrument with a charging base, which is used for the surgical treatment of hemorrhoids, including hemorrhoidal artery ligation and hemorrhoid suture suspension fixation surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The invention provides a method for measuring discharge bubbles in a transformer based on an ultrasonic Doppler effect, and belongs to the technical field of non-intrusive detection of transformers. Comprising the following steps: capturing sound wave signals of bubbles in transformer oil by using a Doppler ultrasonic detection device; positioning the bubble position according to the time difference among the plurality of received reflected sound wave signals; obtaining a bubble speed based on the bubble position and according to Doppler frequency shift data of the sound wave signal; and obtaining the size of the bubble according to the attenuation condition of the sound wave signal by using a pre-established calibration curve of the signal attenuation ratio and the bubble diameter. According to the invention, evaluation and real-time monitoring of the internal discharge condition of the transformer can be realized, non-intrusive measurement of the internal discharge condition of the transformer is realized through observation of the motion state of the discharge bubbles, the early warning capability of early faults of the transformer is improved, and the lean operation and maintenance level of equipment is improved.

The invention discloses an ultrasonic imaging method, system and device and a readable storage medium, and the method comprises the steps: synchronously and continuously collecting B-mode ultrasonic data and Doppler ultrasonic data of a myocardial region of an evaluated object; when the B-mode ultrasonic data and the Doppler ultrasonic data are continuously acquired, synchronously acquiring electrocardiogram data of the evaluated object; determining a time window of the maximum diastole of the heart according to the electrocardiogram data; and in the time window, generating a myocardial structure diagram according to the B-mode ultrasonic data, generating a blood perfusion diagram according to the Doppler ultrasonic data, and overlapping the blood perfusion diagram on the myocardial structure diagram for synchronous display. The ultrasonic imaging method disclosed by the invention can realize clear imaging of blood perfusion in the myocardial tissue.

The utility model relates to the technical field of flow meters, in particular to an ultrasonic wave multifunctional radar flow meter which comprises a shell, a flow speed radio frequency plate, an ultrasonic probe, a cable and an installation assembly, and the installation assembly comprises a supporting seat, an angle adjusting piece, an assembling frame, a locking structure, a plug connector and an installation support. According to the specific structure and shape of an installation position, the installation support in a proper shape is selected, the plug connector on the installation support in a proper size is inserted into the assembly frame, the operation button is twisted to enable the double-thread screw to rotate, the double-thread screw rotates to drive the two locking pieces to abut against and lock the plug connector, and then assembly of the installation support can be completed. And then the flowmeter is installed at a proper point position by using a screw to be matched with the installation support, so that the problem that the installation universality is not high due to the fact that installation supports of different models cannot be replaced when an existing flowmeter integrating the radar wave technology and the Doppler ultrasonic technology encounters different installation environments is solved.

1. The name of the product of this design: Packaging bag (Doppler ultrasound diagnostic instrument packaging bag - white). 2. Purpose of this design product: used for packaging products. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The top view is omitted as it has been reflected in other views; the bottom view of this design product is a part that is not easy to see or cannot be seen when in use, so the bottom view is omitted.

1. The name of the design product: Doppler ultrasonic fetal heart rate instrument (M532L). 2. The use of the design product: for monitoring fetal heart rate. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The embodiment of the invention provides a pulse Doppler filling data determination method and device and electronic equipment. The method comprises the following steps: acquiring reference Doppler data before and / or after a to-be-filled time period, wherein the reference Doppler data is obtained through scanning of Doppler ultrasonic equipment; performing spectrum analysis on the reference Doppler data to obtain corresponding reference spectrum information; and predicting Doppler data to be filled in the time period to be filled based on the reference frequency spectrum information to obtain target Doppler data, target frequency spectrum information corresponding to the target Doppler data being determined based on the reference frequency spectrum information. The target Doppler data obtained through prediction by the scheme is relatively accurate, and the scheme is relatively small in calculation amount and can be suitable for an application scene of real-time scanning.

The invention belongs to the technical field of ultrasonic monitoring, and discloses a Doppler ultrasonic monitoring method and device for intracranial pressure, and the method comprises the steps: employing an ultrahigh frequency Doppler ultrasonic probe to measure the pulse wave of a neck artery; by analyzing the pulse wave map, pulse wave peripheral resistance parameters closely related to intracranial pressure are extracted; the quantitative relation between the pulse wave parameters and the intracranial pressure is obtained through comparison with the peripheral resistance parameters under the real intracranial pressure condition; 24-hour intracranial pressure monitoring of a patient is realized by continuously acquiring the pulse wave parameters of the neck artery. The technology provided by the invention is used for monitoring the intracranial pressure and also can give an alarm to the occurrence of cerebral apoplexy. The device designed by the invention is small in size, light in weight and convenient to wear, does not influence the living of a patient, and can really realize 24-hour noninvasive monitoring of the intracranial pressure.

The utility model provides a well drilling and leaking stoppage integrated device, and relates to the field of well drilling, the well drilling and leaking stoppage integrated device comprises an integral mechanism, and the outer wall of the integral mechanism is fixedly connected with a moving mechanism; the whole mechanism comprises a base, the functions of storage, stirring, pumping, drilling and the like are integrated, the storage barrel can store bentonite and nanometer silicon dioxide slurry leaking stoppage materials respectively, the first centrifugal pump is matched with the conveying pipeline and the Doppler type ultrasonic flowmeter to convey the leaking stoppage materials to the stirring barrel, and the stirring barrel is matched with the second centrifugal pump to convey the leaking stoppage materials to the drilling barrel. A first servo motor drives a stirring rod and a scraping plate to stir and mix, materials are prevented from being attached to the inner wall, a second centrifugal pump can pump out stirred leaking stoppage slurry through a telescopic hose, meanwhile, a sliding groove, a sliding block, an electric push rod, the second servo motor and a drill bit in a base can drill cracks, follow-up leaking stoppage is facilitated, and the leaking stoppage efficiency is improved. The operation process from material storage to leaking stoppage completion is simplified, the links of manual debugging and equipment operation state checking are reduced, and the working efficiency is improved.