Patent ID: 11872083
Assignee: NATIONAL CHENG KUNG UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An ultrasonic device for use on a biological tissue, comprising:
a base assembly including:
an annular base that surrounds an Z-axis, and that has an annular surface disposed to face the biological tissue and surrounding the Z-axis, and at least two pairs of abutment protrusions that protrude from said annular surface for abutting against the biological tissue, wherein, for each pair of said abutment protrusions, said abutment protrusions are disposed symmetrically with respect to the Z-axis; and
an installation base that is coaxially disposed on said annular base and that is operable to rotate relative to said annular base about the Z-axis between at least two testing positions that respectively correspond to said at least two pairs of said abutment protrusions, said installation base being formed with an installation through hole that extends along the Z-axis;

a vibrator that is mounted to said base assembly, and that is operable to vibrate for applying a mechanical wave to the biological tissue through said abutment protrusions, the mechanical wave having a frequency in a range of from 100 Hz to 400 Hz; and
an ultrasonic probe inserted into said installation through hole along the Z-axis for abutting against the biological tissue to perform ultrasonic testing on the biological tissue;
wherein, when said installation base is positioned in any one of said at least two testing positions, said ultrasonic probe that is inserted in said installation through hole is operable to produce an ultrasonic signal travelling as a fan-shaped arcing beam, of which a chord direction is parallel to a virtual line that interconnects the corresponding one of said at least two pairs of said abutment protrusions.