Endoscopic accessory attachment mechanism

An endoscopic accessory comprising:

• a self-locking attachment mechanism that is configured to increase engagement force on an endoscope as a longitudinal force is applied to move the accessory longitudinally and relative to the endoscope.

A method of securing an endoscopic accessory to a distal end of an endoscope comprising:

• providing an endoscope;
• providing an accessory having at least a first surface and a second surface at an acute angle to the first surface;
• placing the accessory in engagement with an endoscope such that the first surface of the accessory engages the surface of an endoscope in the parallel relationship and the second surface of the accessory places an increasing engagement force on a surface of the endoscope as a force is applied to move the accessory longitudinally relative to the endoscope.

An endoscopic accessory attachment mechanism comprising:

• a wedge engageable with an outside surface of an endoscope,
• a cone, sized to fit closely over the surface of the wedge when it is engaged with the endoscope.

An endoscopic accessory attachment coupling comprising:

• proximal and distal ends,
• means for attaching to a distal end of an endoscope at the proximal end, and
• means for attaching to an endoscopic accessory at the distal end.