| 摘要 |
A medical ultrasonic probe is disclosed. The medical ultrasonic probe, according to one example, comprises: an active component comprising at least one piezoelectric element; a backing material provided on the rear surface of the active component to block or diminish ultrasonic waves generated by the piezoelectric element and propagated toward the rear surface; and an at least two-layer structured matching layer provided on the front surface of the active component to perform acoustic impedance matching of ultrasonic waves generated by the piezoelectric element and propagated toward the front surface. In addition, the matching layer comprises a low-impedance matching layer formed of a composition in which a filler is added to an epoxy base material, wherein the composition has a physical characteristic in which a sound speed linearly increases in proportion to the content of the filler. The medical ultrasonic probe, according to another example, can further comprise a skin window provided to the outermost side of the medical ultrasonic probe to cover at least the matching layer, and formed of a composition in which micro glass bubbles are added to the epoxy base material as the filler. |
