Endoscope having two detachable armour tubes

Claim 1

An endoscope coupled with a light source unit, comprising: an endoscope body including a control section and an insert section; a first armour tube having one end connected with said control section; a light source; a light guide extending from said light source and through said endoscope body, alone and only through said first armour tube; a second armour tube having one end connected with said control section and separated from said first armour tube up to about the distal end portions of each said tube; an elongated insert means extending from said endoscope body and said second armour tube and terminating at the distal end thereof to be inserted into a body cavity; first coupling means connecting the ends of said first and second armour tubes to said control section for coupling said light guide and said insert means to the light source unit; and a second removable coupling means for connecting said first and second armour tubes to a light source and sources of water, air, and suction, said coupling means including a hole formed therein through which the said first armour tube is inserted, an engaging pin having a tip extendable into the through hole, a spring urging the engaging pin into the through hole, and a recess formed in the face of the first armour tube adapted to engage the tip of the engaging pin to firmly position the first armour tube with respect to said coupling means.