Device for beam guided biopsy

Device (1) for assisting percutaneous light beam guided surgical procedures in a human or animal body on the basis of the calculated craniocaudal and transverse Einfuhrwinkeln for an injection instrument, such as a syringe needle or biopsy means, relative to a target area within the body, wherein the device (1) has means for emitting at least one laser beam from a laser device (22) in a laser unit (23) for supporting the guided instrument injection into the body, and the laser unit (23) comprises a laser unit housing (9), which along a laser unit housing bracket (6, 7, 8) are positioned and can be locked thereto, and the laser unit (23) via means for adjusting the direction of the laser beam relative to the body features based on the calculated angle of introduction, wherein the device (1) inside the laser unit housing (9) further comprises: a first fastening means (42) on said laser unit housing (9) for the rotatable mounting of a first rotary member (43) of the laser unit (23), one on the first ...