A resonator 1 of the present invention includes: a vibrating member 13 holding an electronic component 12 and applying a vibration to the electronic component 12; and a depressing member 15 applying a depressing force for a side of a substrate 11 to the electronic component 12 through the vibrating member 13. A drive shaft rotatably supported in the housing and extending into said chamber for imparting mechanical energy to the rotor. A slave actuating member is coupled to the medical device and is slidably mounted proximate the distal end for longitudinal movement with respect to the first tubular member. A universal joint is disposed in a housing with the main shaft rotatably passing therethrough.