Patent ID: 8529565

Claim:
A surgical instrument comprising an ultrasonic apparatus for surgically operating on a patient, the ultrasonic apparatus comprising: an ultrasonic transducer which generates ultrasonic vibrations; a probe portion for surgically treating the patient and which has a distal end and a proximal end, the proximal end being coupled to the ultrasonic transducer, the ultrasonic vibrations generated from the ultrasonic transducer being transmitted to the probe portion; a storage portion which stores the ultrasonic transducer in an internal space thereof; a cylindrical casing portion which has a distal end and a proximal end, covers the storage portion and is in close contact with the storage portion in a thickness direction, the thickness direction extending in a direction perpendicular to a longitudinal direction of the storage portion and the cylindrical casing portion; a first electric path and a second electric path provided to extend between an electric contact disposed at the distal end of the cylindrical casing portion and an electric cable connecting portion provided at the proximal end of the casing portion; and an electric cable which has a distal end and a proximal end, the electrical cable proximal end being connected to a power supply unit, the electric cable distal end being coupled to the electric cable connecting portion, the first electric path and the second electric path being sandwiched between the storage portion and the cylindrical casing portion in the thickness direction, the electric contact having: a contact receiving portion which is formed so that an outside diameter of the cylindrical casing portion decreases stepwise toward the distal end thereof; an outer side contact installed in the contact receiving portion, disposed on an outer peripheral surface of the distal end of the cylindrical casing portion and connected to the first electric path; and an inner side contact disposed on an inner peripheral surface of the distal end of the cylindrical casing portion and connected to the second electric path, said first electric path and said second electric path and said outer and inner side contacts being positioned and configured to provide at least one of control and surgical operating energy for said surgical instrument.