Surgical instrument for clipping any affected portion of a body cavity

A surgical instrument for clipping any affected portion of a body cavity of a human being, comprising a clip member formed into a substantially figure "eight" shape and having a rear end portion, a pair of offset portions having one end connected to the rear end portion and the other end extending away from the longitudinal axis of the clip member, a pair of portions respectively connected at one end to the opposite ends of the offset portions and intersecting each other, and a pair of clamping portions respectively connected to the opposite ends of the intersecting portions;

• an instrument body through an interior of which the clip member is introduced into the body cavity;
• a hook member mounted within the instrument body so as to anchor the rear end portion of the clip member;
• first actuating member for moving the hook member anywhere between a first position in which the hook member is exposed and a second position in which the hook member is retracted within the instrument body;
• engaging means adapted to be forcefully engaged with the offset portions of the clip member, when the hook member is retracted a predetermined distance from the first position, to cause the offset portions to be urgingly compressed to move the clamping portions of the clip member to an opened position, adapted to be forcefully engaged with the intersecting portions of the clip member, when the hook member is further retracted by the first actuating means, to cause the clamping portions of the clip member to be closed to clip the affected portion of the body cavity, and adapted to be left, together with the clip member within the body cavity when the clip member associated therewith is separated from the instrument body;
• and second actuating means for moving the engaging means relative to the hook member anywhere between a first position in which the engaging means is exposed and a position in which the engaging means is retracted.