Abstract: Drive mechanisms are provided for a mechanically scanned ultrasound transducer or wobbler. The size, weight, and shape of a wobbler transducer are more optimized by positioning a drive shaft of a motor orthogonal to an array rather than parallel with the array. Different devices may be used for transferring the force of the rotational movement of the motor to the array. A linear bushing transfers rotation motion of an arm connected with a motor to rotational motion of an arm connected with an array in one such device. In another device, a cam transfers rotational motion of the motor to rotational motion of the array.

Abstract: The size, weight, and shape of a wobbler transducer are more optimized by positioning a drive shaft of a motor orthogonal to an array rather than parallel with the array. The drive shaft may be more perpendicular than parallel to the direction of the transducer movement as well. Different devices may be used for transferring the force of the rotational movement of the motor to the array. For example, bevel gears are used to rotate a belt. The array connects with the belt for mechanical movement. As another example, an arm is rotated 180°. The arm slidingly and rotatably connects with the transducer array. As the arm rotates in response to the motor, the array is slid along a rail with bushings. A smaller size motor may be used as large torque may not be needed for driving the array as compared to a typical wobbler transducer. A more ergonomic probe housing, such as a smaller and more desirably shaped housing may be provided.