50 results about "Handheld ultrasound" patented technology

A non-invasive screening technique for visualizing coronary arteries which overcomes the problems of visualizing the curved arteries by projecting the three dimensional volume of the arteries onto a two dimensional screen. Blood filled areas such as the coronary arteries and veins, are highlighted to contrast with other nearby tissues using non-linear classification and segmentation techniques. Data is gathered as a sequence of 2D slices stored as a 3D volume. Software interpolates voxels intermediate to the slices. Wiener filtering or LMS spatial filtering can be implemented on each 2D scan to improve lateral resolution and reduce noise prior to the use of the scan data with the classification and segmentation algorithms. A traditional handheld ultrasound probe is employed to enable the technician to locate the area of interest, but a gyroscopic stabilizer is added to minimize unwanted variation on two axes of rotation.

A handheld ultrasound instrument is disclosed having enhanced diagnostic modes including pulse / continuous wave Doppler, time-motion analysis, spectral analysis and tissue harmonic imaging. An external electrocardiograph (ECG) recording unit is also disclosed. The ECG unit is adaptable to be used with the handheld ultrasound instrument to provide for ECG monitoring while performing an ultrasound scan in B-mode, Doppler, color Doppler, M-mode, and CW / PW mode. The enhanced handheld ultrasound instrument further includes a security mechanism allowing any combination of the diagnostic modes to be enabled by the manufacturer, and later to enable or disable any one or group of the diagnostic modes. The invention also discloses a method for a manufacturer to maintain a database of handheld ultrasound instrument capabilities after the instruments enter the stream of commerce.

The present invention relates to a method for judging the coplanarity between a two-dimensional ultrasonic image and a puncture needle. A hand-held ultrasonic probe scans the puncture needle in the tissue, and saves the ultrasonic image of the puncture needle in the tissue. It is characterized in that: step 1: extracting the imaging area on the ultrasonic image, Convert the color image to a grayscale image, and convert it into a binary image after threshold transformation; Step 2: Perform edge detection on the binary image obtained in Step 1, and determine the straight line where the puncture needle is located through Radon transformation; Step 3: Locate the puncture needle The position of the needle tip; step 4: determine whether the puncture needle is located in the imaging plane by judging whether the gray value of the intersection point of the straight line where the puncture needle is located and the boundary of the ultrasound imaging area is greater than a certain threshold.

The invention relates to a handheld ultrasonic device and an imaging method. The device comprises a probe part, a transmitting module, a receiving module, an echo data processing module, a controllerand a communication module; the controller controls the transmitting module to generate transmission pulses so that the probe part can be stimulated to transmit ultrasonic wave signals; the controllercontrols the receiving module to collect ultrasonic echo signals received by the probe part; the echo data processing module processes the ultrasonic echo signals collected by the receiving module and then sends the data to the communication module; the communication module communicates with external image receiving equipment in a wireless or wired mode; the controller conducts low-power-consumption scanning control on the transmitting module and the receiving module, wherein low-power-consumption scanning control comprises the steps that the transmitting module is controlled to conduct widening transmission, the receiving module is controlled to conduct widening receiving, it is controlled that low-power-consumption empty scanning is generated, the transmitting module is controlled to work during ultrasonic transmission, and the receiving module is controlled to work when receiving effective data. According to the device and the method, on the basis that the system performance is notdegraded, power consumption is reduced, probe overheating is prevented, and endurance time is prolonged.