Patent ID: 7252660

Claim:
Multifunctional instrument for microinvasive surgery having an operator hand grip ( 10 ), a multi-lumen tube ( 14 ) attached to the operator hand grip, at least two guide channels ( 16 , 18 , 20 ) formed in parallel in the tube, and surgical instruments ( 22 , 24 , 26 ) which are displaceably and rotatably mounted in the guide channels and comprise a shaft ( 220 , 240 , 260 ), on whose distal end is disposed in each case a surgical working element, wherein the instruments ( 22 , 24 , 26 ) can be displaced between a non-operative position, in which the respective working element is retracted into the tube, and a working position, in which the respective working element projects on the distal end of the tube, characterized in that the instruments ( 22 , 24 , 26 ) can be displaced into and out of the working position by means of a motor, at least one of the instruments ( 22 , 24 , 26 ) can be rotated in its working position by means of a motor, and an electronic control is provided to control at least the motor-driven displacement movements and rotational movements, wherein the tube ( 14 ) comprises two guide channels ( 16 , 18 ) having a first diameter and one guide channel ( 20 ) having a second diameter which is larger than the first diameter, wherein the tube ( 14 ) further comprises at least one additional channel ( 70 , 72 ) which serves as a suction or rinsing channel, and wherein the at least one additional channels ( 70 , 72 ) is formed adjacent to the guide channel ( 18 ) having the larger diameter.