| 摘要 |
An ultrasonic probe for insertion into a patient, particularly via the oesophagus, comprising emission and reception piezoelectric crystals (5) mounted on a core member (3) at substantially 45 degrees to the longitudinal axis of the core member (3). A flexible drive member (13) is provided to conduct torque to the core member (3) from the exterior of the patient to enable the orientation of the probe to be controlled. The probe tip (1) is encased in a silicon boot (9) while the flexible drive member (13) and the cables (7a, 7b) taking signals to and from the piezoelectric crystals (5) are surrounded by a copper braid (15) and a silicon tube (17). |
