Surgical instrument with ratcheting rotatable shaft

摘要: An ultrasonic surgical instrument comprises a reusable housing including an internal transducer and end effector rotation assembly. exemplary assembly is ratchet pawl assembly, which allows the to rotate in first direction but not second, opposite direction. The effector, integral torque wrench, attached form single unit that rotatable relative housing. attaches stationary cable via slip rings. communicates with generator, provides electrical power transducer. converts into vibrational energy, transmitted effector.