Patent ID: 7306599
Filing Date: 2007-12-11
Classification: A61B

Abstract:
1. A medical instrument comprising: an elongated insertion section having distal and proximal end portions; a pair of holding portions provided at the distal end portion of the insertion section operative to hold tissue; a heat source portion provided on at least one holding portion of the pair of holding portions, the heat source portion operative to generate heat to transfer the heat toward the other holding portion of the pair of holding portions, at least a part of the heat source portion being covered with a heat insulating member disposed along a lengthwise direction of the heat source portion; and an operation section provided at the proximal end portion of the insertion section, operative to open and close the pair of holding portions; the pair of holding portions comprising: a pair of jaws which are able to be opened/closed with respect to each other; at least one of the jaws has a jaw main body and a window portion which is provided to the jaw main body and pierced from an opposed surface with respect to the other jaw to the surface of the outer periphery of the jaw main body; the heat insulating member is arranged in the window portion in such a state that it is smoothly provided on the surface of the outer periphery; and the heat source portion is in contact with a heat transfer portion which transfers the heat generated by the heat source portion toward the other jaw.