Patent ID: 9289629
Filing Date: 2016-03-22
CPC Classification: A61B,Y10T

Claim Text:
1. An ultrasonic probe configured to transmit an ultrasonic vibration along a longitudinal axis defined by a proximal end and a distal end thereof from the proximal end toward the distal end, wherein the proximal end is located on a distal end side of a horn which is configured to transmit the ultrasonic vibration along with the longitudinal axis, the ultrasonic probe comprising: a first area including a proximal end portion, a distal end portion and a center axis which is defined by the proximal end portion and the distal end portion and which is parallel to the longitudinal axis, the first area having an antinode position of the ultrasonic vibration at the distal end portion, wherein a maximum distance from the center axis to an outer peripheral surface of the ultrasonic probe in a radial direction orthogonal to the center axis is a first distance; a treatment section located on a distal end side with respect to the distal end portion of the first area and having a center of gravity at a position displaced from the center axis of the first area; and a second area located between the first area and the treatment section so as to be continuous with the distal end portion of the first area and configured to have a gravity center axis parallel to the center axis of the first area and from a position which passes through the center of gravity of the treatment section to a position which is closer to the center of gravity than the center axis, wherein a maximum distance from the center axis to the outer peripheral surface of the ultrasonic probe in the radial direction orthogonal to the center axis is a second distance equal to or shorter than the first distance.