14 results about "Doppler ultrasonics" patented technology

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 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.

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.

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 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 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.

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.