Patent ID: 6013095
Filing Date: 2000-01-11
Classification: A61B

Abstract:
An endoscopic grasping tool comprising:at least two grasping arms connected with each other at first ends so as to be movable between a closed and an open position at their free ends, said free ends having a form enabling the grasping of an object,the grasping arms being made of an elastic material and being connected by a link mechanism, each of said grasping arms including a link part of said link mechanism, each of said link parts including a rotational axis, said grasping arms being pivotal about said rotational axis between said closed and open positions, at least one of said grasping arms includes a hole portion formed substantially throughout the entire length between said first end and said free end and an edge portion surrounding said hole portion, said at least one of the grasping arms being formed in an arcuate shape so as to bulge outwardly in a lateral direction throughout substantially the entire length between said first end and said free end of the grasping arm, and the cross section and the length of the grasping arm being designed so that the maximum grasping force at said free ends is in the range of 50-300 g, whereby said at least one of the grasping arms has a high elasticity in an opening and closing direction.