Patent ID: 8187169

Claim:
A medical apparatus comprising: a first medical device including: a treatment instrument insertion portion including: a bending portion, and a flexible tube portion provided proximally of the bending portion, the flexible tube portion including a tend-to-curve portion, and a recess portion provided at a predetermined site on a side peripheral surface of the tend-to-curve portion, the recess portion having a rectangular parallelepiped shape and a pair of slopes at side portions thereof, a first driving portion, which is electrically driven, for generating a driving force to bend the bending portion, and a first control device for drivingly controlling the first driving portion; a second medical device including: a treatment instrument channel through which the treatment instrument insertion portion of the first medical device can be inserted; a curving portion formed at a distal end of the treatment instrument channel; an external force applying portion for applying an external force to the treatment instrument insertion portion of the first medical device to move the treatment instrument insertion portion, a second driving portion, which is electrically driven, for generating a driving force to operate the external force applying portion, a second control device for drivingly controlling the second driving portion, and a protruding portion provided on a proximal end side of the curving portion, the protruding portion being operatively connected to a biasing member to protrude into and retract from the recess portion of the first medical device; an integrated inputting device for instructing a distal end of the treatment instrument insertion portion to be moved to a target position or a target posture or in a target direction, in a configuration in which the external force of the external force applying portion provided in the second medical device can be applied to the treatment instrument insertion portion of the first medical device; and an integrated electrical control device, which is connected with the first control device of the first medical device and the second control device of the second medical device, for drivingly controlling the first control device and the second control device on the basis of an instruction from the integrated inputting device, to drivingly control the first driving portion and the second driving portion in conjunction to move the distal end of the treatment instrument insertion portion to the instructed target position or target posture or target direction, wherein the recess portion and the protruding portion are a presetting portion configured to preset the operation of the external force applying portion of the second medical device and the bending operation of the bending portion of the first medical device to a relationship for a predetermined position and a predetermined posture.