Devices for treating body tissue. The device includes: an elongated cylindrical guide portion having a distal end and a proximal end; and one or more heat generators securely attached to the elongated guide portion. The heat generators are operative to inductively generate heat energy in response to an electromagnetic field externally applied thereto. One or more of the heat generators are disposed near target tissue so that the heat energy generated by the heat generators is used to treat the target tissue during operation.