An access device that is adapted for guiding at least one steerable invasive instrument (10, 20) into and out of an object via an access port of the object, the at least one steerable invasive instrument comprising an elongated tubular body having a proximal end part (11, 21) comprising a proximal zone and at least one proximal flexible zone located distal to said proximal zone, a distal end part (13, 23) comprising at least one distal flexible zone and a rigid intermediate part, wherein the steerable invasive instrument further comprises a steering arrangement that is adapted for translating a deflection of the at least one proximal flexible zone relative to the rigid intermediate part into a related deflection of said at least one distal flexible zone; wherein the access device comprises a rigid shaft extending in an axial direction and having at least one lumen (34a, 34b, 34c, 34d) whereby the at least one lumen is arranged to provide a passage between a proximal end face and a distal end face of the shaft and is adapted for receiving and guiding the at least one steerable invasive instrument into and out of the object in a direction parallel to said axial direction of the rigid shaft; and characterized by a position setting arrangement and a deflection setting arrangement comprising either: a pin extending in a direction parallel to said axial direction of said rigid shaft wherein said pin is connected to said rigid shaft via a first arm and a bracket comprising a recess for engaging with said pin, a channel to receive said rigid intermediate part and a slit to releasably couple said proximal zone of said steerable invasive instrument, wherein said proximal flexible zone is arranged between said channel and said slit, such that when said at least one steerable invasive instrument is inserted into said at least one lumen and said proximal zone is coupled by said bracket a position of the at least one steerable invasive instrument can be set relative to said rigid shaft in a direction parallel to said axial direction and such that an angle is set between said at least one proximal flexible zone and said rigid intermediate part, and thus setting a triangulation angle between said at least one distal flexible zone and said rigid intermediate part of the at least one steerable invasive instrument (10, 20); or a second arm that is connected to the shaft and a third arm which is slidably arranged with respect to said second arm, said second arm extending in a direction parallel to said axial direction, said third arm being provided with an engagement means (62; 315, 316) adapted for engaging said proximal zone of said steerable invasive instrument, such that when said at least one steerable instrument is inserted into said at least one lumen and said proximal zone is engaged by said engagement means (62; 315, 316) a position of the at least one steerable invasive instrument can be set relative to the shaft in a direction parallel to said axial direction and such that an angle is set between said at least one proximal flexible zone and the rigid intermediate part, and thus setting a triangulation angle between said at least one distal flexible zone and said rigid intermediate part of the at least one steerable invasive instrument (10, 20). a pin extending in a direction parallel to said axial direction of said rigid shaft wherein said pin is connected to said rigid shaft via a first arm and a bracket comprising a recess for engaging with said pin, a channel to receive said rigid intermediate part and a slit to releasably couple said proximal zone of said steerable invasive instrument, wherein said proximal flexible zone is arranged between said channel and said slit, such that when said at least one steerable invasive instrument is inserted into said at least one lumen and said proximal zone is coupled by said bracket a position of the at least one steerable invasive instrument can be set relative to said rigid shaft in a direction parallel to said axial direction and such that an angle is set between said at least one proximal flexible zone and said rigid intermediate part, and thus setting a triangulation angle between said at least one distal flexible zone and said rigid intermediate part of the at least one steerable invasive instrument (10, 20); or a second arm that is connected to the shaft and a third arm which is slidably arranged with respect to said second arm, said second arm extending in a direction parallel to said axial direction, said third arm being provided with an engagement means (62; 315, 316) adapted for engaging said proximal zone of said steerable invasive instrument, such that when said at least one steerable instrument is inserted into said at least one lumen and said proximal zone is engaged by said engagement means (62; 315, 316) a position of the at least one steerable invasive instrument can be set relative to the shaft in a direction parallel to said axial direction and such that an angle is set between said at least one proximal flexible zone and the rigid intermediate part, and thus setting a triangulation angle between said at least one distal flexible zone and said rigid intermediate part of the at least one steerable invasive instrument (10, 20).