An ultrasonic diagnostic apparatus is provided in which overlap of a displayed ultrasonic image and displayed diagnostic data can be avoided without imposing the burden of complicated operations on the operator. The fiber optic interface module includes a printed wiring board having a pair of outwardly extending arms that define a notch therebetween. The assembled blade includes at least an inner piece, an outer piece, and a joint configured for assembly and disassembly of the inner piece and said outer piece. Decorative designs may either be preprinted on the inserts or a user may produce a customized design. for a period of time which is greater than one minute, and that a TTCP cement paste formed by mixing the resulting heated TTCP powder with the aqueous solution has a prolonged working time in comparison with that formed by mixing TTCP powder that has not been subjected to such heating with the aqueous solution. The bearing bore may be configured such that the dynamic radial and axial thrust bearing reactions between the axle and the hub results in a first reaction force FR applied to the hub, the first reaction force FR having a radial component, and a second reaction force FN applied to the hub, the second reaction force FN having both a radial and an axial component.