3 results about "Phased array transducer" patented technology

This invention discloses a wearable ultrasound delivery device for treating otitis media, comprising a wearable main body with a flexible structure adapted to the shape of the patient's ear canal, and a through-hole central channel; an ultrasound drug delivery device, detachably disposed within the central channel, comprising a drug carrier for carrying the therapeutic drug to be delivered, an ultrasound transducer assembly for providing an ultrasound-guided drug delivery mode, and a handheld controller for adjusting the millimeter-level displacement of the drug carrier into the middle ear cavity; wherein, the ultrasound transducer assembly comprises a flexible substrate and multiple piezoelectric transducer units integrated on the flexible substrate, the multiple piezoelectric transducer units constituting a phased array transducer array. This device solves the technical problems of inaccurate drug delivery, low drug delivery efficiency, inability to adapt to the ear canal structure, and complex operation in the prior art.

The application discloses a kind of based on phased array's branch pipe seat weld defect detection device design method and device, method includes establishing EMAT phased array finite element model, based on EMAT phased array finite element model to transducer sound field is carried out simulation experiment, obtain multiple sound field simulation results, based on multiple sound field simulation results to phased array synthesis sound beam quality is analyzed, and the optimal structure parameter of phased array is determined, based on optimal structure parameter to weld defect detection device is optimized design.The application utilizes finite element method to transducer sound field is carried out simulation experiment analysis, and the optimal structure parameter of phased array is determined, and the detection capability of weld defect is improved using optimal structure parameter design EMAT phased array transducer.The branch pipe seat fillet weld detection fixture device designed by the application has high modularity and flexibility, and the device can adapt to the detection needs of various special-shaped geometric structure branch pipes and can be applied to the detection of branch pipe seat weld defects with different diameters and different welding processes.

A phased array transducer for cardiac ultrasound diagnostic imaging includes: a transducer head; a housing unit; and cables. The transducer head has a shape adapted for coupling with the human chest. A method for acquiring cardiac ultrasound images behind the ribs of a human includes: providing a phased array transducer including a transducer head shaped for coupling with the human chest; and applying a beamforming method to generate an ultrasound image.