Patent ID: 7201748
Filing Date: 2007-04-10
Classification: A61B

Abstract:
1. An energy irradiation apparatus comprising an insertion portion which includes a hollow cylindrical member having a sealed distal end portion and is configured to be inserted into a living body, and an energy irradiation mechanism which is placed inside the hollow cylindrical member and radiates energy to living tissue through an irradiation window portion which is provided on a side wall of the hollow cylindrical member to extend in a longitudinal direction, wherein said energy irradiation mechanism comprises an energy irradiation end portion which is placed facing the irradiation window portion and reciprocating along the longitudinal direction of the irradiation window portion, a transmitting member which transmits a reciprocation in a major axis direction of said insertion portion to cause said energy irradiation end portion to make reciprocating motion, a cylinder which is held to be rotatable about an axis parallel to an axis in the longitudinal direction and has a shaped portion which is formed on an outer surface and reciprocates said transmitting member, and a driving unit including a motor which rotates said cylinder.