Abstract: A sheath is sized and configured to receive an endoscope. The sheath is provided with a housing having a proximally facing opening with a U-shaped notch. The endoscope has at the proximal end a right-angle light post which and is received closely within the U-shaped notch at the proximal opening of the sheath housing. A locking mechanism is provided including a pivotable latch having a distal end configured to be received within a notch formed on the endoscope housing distal to and diametrically opposed from the light post. The latch includes a spring tending to bias the distal portion thereof into engagement with the notch in the endoscope housing. A resilient O-ring is provided at the distal end of a recess in the sheath housing. A shoulder on the distal end of the proximal portion of the endoscope compresses the O-ring when the latch is engaged.

Abstract: A sheath is sized and configured to receive an endoscope. The sheath is provided with a housing having a proximally facing opening with a U-shaped notch. The endoscope has at the proximal end a right-angle light post which and is received closely within the U-shaped notch at the proximal opening of the sheath housing. A locking mechanism is provided including a pivotable latch having a distal end configured to be received within a notch formed on the endoscope housing distal to and diametrically opposed from the light post. The latch includes a spring tending to bias the distal portion thereof into engagement with the notch in the endoscope housing. A resilient O-ring is provided at the distal end of a recess in the sheath housing. A shoulder on the distal end of the proximal portion of the endoscope compresses the O-ring when the latch is engaged.