Phased array transducers and their applications

By increasing the number and pitch of acoustic elements, and employing concave acoustic lenses and special beamforming methods, the problems of small field of view and reduced resolution in cardiac diagnostic imaging of phased array ultrasound transducers have been solved, resulting in higher quality cardiac ultrasound images.

CN122138785APending Publication Date: 2026-06-02CLOUDSTREAM MEDICAL IMAGING INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CLOUDSTREAM MEDICAL IMAGING INC
Filing Date
2024-11-07
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing phased array ultrasound transducers have a small field of view in the shallow and medium depth range and the image resolution decreases rapidly with depth, especially when used for human cardiac diagnostic imaging, which is severely affected by rib obstruction.

Method used

A novel phased array transducer was designed, which increases the number and pitch of acoustic elements, uses a concave acoustic lens to improve coupling with the human chest, and employs a special beamforming method to generate ultrasound images without bone shadows.

Benefits of technology

It improves the resolution and signal-to-noise ratio of cardiac ultrasound images, provides a larger field of view and better image quality, and reduces the impact of rib obstruction.

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Abstract

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.
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