Surgical instrument guide device

A guide device for controlling a manually operated medical instrument that includes at least

• a handle, instrument shaft and distal tool, said guide device comprising:
• an elongated guide shaft having proximal and distal ends and including an instrument lumen for receiving therethrough the manually operated medical instrument;
• a distal bendable member disposed at the distal end of the elongated guide shaft;
• a proximal bendable member disposed at the proximal end of the elongated guide shaft;
• actuation means extending between said distal and proximal bendable members and providing a bending of said distal bendable member controlled from said proximal bendable member;
• said proximal bendable member being controlled from said manually operated medical instrument to cause a corresponding bending of said distal bendable member and control of said distal tool;
• and a locking mechanism for fixing the position of the distal tool at a selected position and having locked and unlocked states;
• said locking mechanism including a ball and socket arrangement disposed about said proximal motion member and a cinch member for locking said ball and socket arrangement.