Abstract: A system, for transcutaneous photodynamic therapy in an organ or organ segment of an organic body, includes a plurality of light applicators, a supply unit and a placement template placeable relative to the organic body for defined orientation of the light applicators. The light applicators include a needle-shaped insertion portion for transcutaneous piercing along a piercing axis, a light-emitting applicator tip at the distal end of the insertion portion, and a fixing point at a proximal distance from the applicator tip. The placement template defines fixing point receptacles for fixing the light applicators with a defined fixing point wherein the receptacles are arranged in accordance with a three-dimensional fixing point grid structure, that corresponds to a virtual organ-specific target point grid structure for the light-emitting applicator tips in the organ that is arranged parallel-displaced relative to the target point grid structure by the distance d along the piercing axis.

Abstract: A drive arrangement for an endoscopic shaft instrument, preferably an instrument which is intended for use in connection with a surgical robot, has a drive arrangement that has an instrument housing (12) on a proximal shaft end. At least one housing shaft (22) is mounted in the instrument housing (12). The shaft is drivingly connected to a traction device which is provided for controlling an instrument head on a distal shaft end. Furthermore, the drive arrangement has a drive unit having at least one drive shaft. The housing shaft (22) can be drivingly connected to said drive shaft. The at least one housing shaft (22) is oriented at an angle to the drive shaft (30) and the drive shaft can be drivingly connected thereto.

Abstract: A drive arrangement for an endoscopic shaft instrument, preferably an instrument which is intended for use in connection with a surgical robot, has a drive arrangement that has an instrument housing (12) on a proximal shaft end. At least one housing shaft (22) is mounted in the instrument housing (12). The shaft is drivingly connected to a traction device which is provided for controlling an instrument head on a distal shaft end. Furthermore, the drive arrangement has a drive unit having at least one drive shaft. The housing shaft (22) can be drivingly connected to said drive shaft. The at least one housing shaft (22) is oriented at an angle to the drive shaft (30) and the drive shaft can be drivingly connected thereto.

Abstract: An instrument, particularly a medical endoscopic instrument or technoscope, includes a shank (2) and an instrument head (6) which is arranged at a distal shank end. The instrument head (6) is bendable relative to the shank and includes a tool with two jaw parts (12, 14) which can be pivoted relative to one another. The instrument head (6), for controlling bending, is coupled in movement to at least one actuation rod (26). The actuation rod (26) is displaceably guided in the shank (2) in a shank longitudinal direction. For the control of the tool, the two jaw parts (12, 14) are coupled in movement to at least one pull cable which is led through the shank (2) to a proximal instrument end.

Abstract: An endoscopic instrument includes an elongate guide element having at least one guide rail extending from a proximal to a distal end of the guide element. At least one working instrument, which is provided with an engagement element which fits with the at least one guide rail, engages with the at least one guide rail in a manner such that the working instrument is displaceable along the at least one guide rail.