620 results about "Control ultrasound" patented technology

A system and method for controlling the heat of an ultrasonic transducer is disclosed. The presently preferred embodiments of the present invention control the temperature of the transducer face by changing the imaging modes of the system. In a preferred embodiment, feedback from temperature sensing elements placed in the transducer is used to determine when to switch from a higher power imaging mode to a lower power imaging mode. In another preferred embodiment, the system switches from a higher power imaging mode to a lower power imaging mode after a predetermined period of time has elapsed. In yet another preferred embodiment, the system switches to a "mixed" imaging mode, where the system cycles rapidly between a higher power imaging mode and a lower power imaging mode, and the resulting data is combined to form a single image.

A control system for use with an ultrasonic surgical instrument includes a generator supplying electrical energy to an ultrasonic surgical instrument, the electrical energy supplied by the generator being controlled such that power applied by the instrument is maintained constant once a predetermined pressure threshold is met. The control system operates by assigning a nominal power at which the ultrasonic instrument is to operate and adjusting the current and voltage applied to the ultrasonic surgical instrument so as to maintain the power applied by the ultrasonic surgical instrument at approximately the nominal power.

The position of an imaging catheter in a body structure such as the heart is automatically controlled by a robotic manipulator such that its field of view at all times includes the distal end of a second catheter that is employed to effect a medical procedure. A processor receives signals from position sensors in the catheters. The processor utilizes the information received from the sensors and continually determines any deviation of the second catheter from the required field of view of the imaging catheter. The processor transmits compensation instructions to the robotic manipulator, which when executed assure that the imaging catheter tracks the second catheter.

An ultrasonic imaging catheter is disclosed that includes a thermistor mounted on the catheter in the vicinity of the ultrasound transducer for monitoring the temperature in the vicinity thereof. The electrical signal from the thermistor can be used to control the output of the ultrasound transducer to thereby control the temperature of the same. In a further aspect of the invention, an isolation box is provided that is external to the ultrasound machine itself and is connected to the same by a cable. Ideally, the isolation box which houses a sufficient number of isolation transformers, is small, so it can be placed easily on or near the patient's bed.

A system and method for controlling an ultrasound probe are provided. The ultrasound probe includes a first transducer array and a second transducer array. The ultrasound probe further includes a transducer array selector component within a housing. The transducer array selector component is configured to generate a control signal based on a user input to selectively activate one of the first transducer array and the second transducer array.

The invention provides a preparation method of camellia extraction liquid. The method comprises the following steps of 1) removing impurities of fresh camellia and/or fresh camellia buds; cutting up the fresh camellia and/or fresh camellia buds into small sections for use as raw materials; 2) taking a certain number of raw materials; putting the raw materials into an ultrasonic kettle; adding a solvent with the mass ratio being 1:(3-30); uniformly stirring the mixture; adding a certain amount of inorganic acid and/or organic acid; regulating the pH value to 1.3 to 3.0; soaking the materials for 10 to 30 min; 3) then performing ultrasonic treatment for 30 to 60min; controlling the ultrasonic frequency to be 20 to 25KHz, the ultrasonic power to be 1.0 to 2.0KW and the ultrasonic temperature to be 15 to 50 DEG C; then performing filtration, sterilization and detection to obtain camellia extraction liquid. The camellia extraction liquid maintains the color, luster, flavor and effective active ingredients of the camellia to the maximum degree; the anti-oxidation functional ingredients are overall; the contents are high; the safety and the stability are high; cosmetics prepared by using camellia extraction liquid as active ingredients have the excellent whitening, spot-reducing and anti-aging efficacies.

A novel diagnostic ultrasound apparatus has a plurality of ultrasound probes 1, delay means pairs 4 and 7 arranged respectively in the plurality of ultrasound probes to electronically delay the timings of transmissions or receptions of ultrasonic waves by the ultrasonic transducers, position/orientation detecting means 10 and delay control signal generating means for generating a delay control signal to control signal delays of the plurality of ultrasonic transducers of the plurality of ultrasound probes, using information acquired from the means 10. The delay control signal is input to the delay means to control the timings of transmission of ultrasonic waves to a target object of examination.

A system and method for controlling the heat of an ultrasonic transducer is disclosed. In the presently preferred embodiments, the operator selects one or more mutable system parameters of the ultrasound system which will be changed if either the temperature becomes too great, or at the operator's command, or both.

The invention discloses an ultrasonic distance measurement system and a method for controlling the ultrasonic distance measurement system to measure the distance. The ultrasonic distance measurement system comprises an ultrasonic sensor and a mobile terminal, wherein the ultrasonic sensor is used for transmitting an ultrasonic signal to a measurement target and receiving an analog signal reflected by the target; the mobile terminal is used for receiving the analog signal received by the ultrasonic sensor through an audio port of the mobile terminal and carrying out timing operations, the distance is calculated on the basis of the obtained analog signal and a timing result, the obtained distance is stored and displayed, and the ultrasonic sensor is controlled to be started. The mobile terminal is adopted to serve as a processor, a cycle sine wave signal is output to a power obtaining circuit through a second channel of the audio port to serve as a power supply of the ultrasonic sensor, an intermittent power supply strategy is adopted, and electricity is saved; a cycle sine wave signal is transmitted to a transmitter of the ultrasonic sensor through a first channel of the audio port to provide a square signal with proper power for the ultrasonic sensor, and an echo signal of the ultrasonic sensor is received through a fourth channel of the audio port.

A method and system providing control of an ultrasound system with a user interface is provided. The user interface for controlling the ultrasound system includes a plurality of selectable elements for controlling operation of the ultrasound system and a plurality of identifiers. Each identifier corresponds to one of the plurality of selectable elements and associates control commands with the selectable elements.

The invention discloses an ultrasonic probe intelligent continuous scanner and a scanning method thereof. The ultrasonic probe intelligent continuous scanner comprises a computer and an ultrasonic probe connected with the computer, and also comprises a depth camera device and a three-dimensional motion control device which are connected with the computer; the ultrasonic probe is arranged on the three-dimensional motion control device used for controlling the ultrasonic probe to perform three-dimensional motion. A three-dimensional surface image is established according to the images shot by the depth camera device, and then the scanning tract of the ultrasonic probe is made, so the ultrasonic probe is always attached onto a scanned tissue with a uniform pressure in the scanning process, the defect that the tissue can not be scanned with the uniform pressure by a mechanical driving scanning mode in the prior art is overcome, and the safety of an inspected object is ensured. The ultrasonic probe intelligent continuous scanner and the scanning method thereof can be used in multiple fields of three-dimensional ultrasonic reestablishing, three-dimensional elastic imaging and the like, and have very large application value and prospect.

A connection apparatus and method for controlling an ultrasound probe are provided. The ultrasound probe includes a first chamber, a second chamber, a sealing member between the first and second chambers and a flexible connection member within each of the first and second chambers. The ultrasound probe further comprises a rigid connection interface forming at least part of the sealing member and connecting the flexible connection member in the first chamber with the flexible connection member in the second chamber.

An ultrasound apparatus comprising a sensor assembly configured to be positioned on a patient body portion, the sensor assembly comprises an array of sensors configured to be activated to acquire a plurality of images of the patient body portion, and a remote control unit comprising a detector interface configured to communicate wirelessly with the sensor assembly, and an input device operable by a user to interact with the detector interface, the input device is configured to transmit a plurality of input signals to the sensor assembly, wherein at least one input signal of the plurality of input signals activates at least one sensor of the array of sensors to acquire at least one image of the plurality of images.

An ultrasound imaging system includes a direction- tracking microphone that is able to determine the direction of a voice command and to cause the microphone to selectively receive acoustic inputs from the determined direction. A voice recognition then interprets the voice command and controls the operation of the ultrasound imaging system accordingly. The direction tracking microphone may, for example, select one of several unidirectional microphones that receives the loudest signal or a phased array of omnidirectional microphones.

A method for controlling an ultrasound imaging system includes defining a sample volume gate on a two-dimensional (2D) ultrasound image, the sample volume gate defining a location at which flow is to be estimated, automatically calculating a SNR for an initial transmit and receive steering position (aperture location) and aperture size, automatically calculating a SNR for a different second transmit and receive steering position (aperture location) and aperture size, automatically comparing the SNR for the first set of apertures to the SNR for the second set of apertures, and automatically adjusting the steering angle and an aperture size of an ultrasound probe's transmit and receive events based on the comparison.

The invention discloses a digitized intelligent ultrasonic power source and a use method thereof. A PWM (Pulse Width Modulation) drive pulse signal is directly produced by a microprocessor and is adjusted by a rear-level circuit to be used for driving an ultrasonic transducer; a voltage adjustable power source is adjusted, and the output power of the ultrasonic power source is controlled; the current of a power frequency mains supply and the voltage of the voltage adjustable power source are monitored in real time, and the work state of the ultrasonic power source is adjusted; the voltage of an impedance matching circuit and the current of a resonance matching circuit are sampled in real time, and the frequency of the PWM drive pulse signal is dynamically adjusted through analyzing the impedance characteristic by the microprocessor so as to realize a dynamic matching process, ensure that the transducer always works at a resonance point and output the maximal available power. According to the digitized intelligent ultrasonic power source and the use method thereof, the ultrasonic power is adjustable, the matching mode is simple, the precision is higher, a circuit is simple, the safety and the reliability are realized, the cost is low, and the application prospect is wider.