Abstract: An operating microscope including an optical unit for forming an image of an object plane in oculars of the microscope, an optoelectronic image receiver coupled to the microscope and optics to form images, of objects placed in a region between a front objective of the microscope and an object plane of the microscope, on the optoelectronic image receiver. The microscope has a magnification factor of the optics to form images, and a system to detect optical markings forming a markings pattern placed on a surgical instrument or an object placed in the region between the front objective of the microscope and the object plane of the microscope. The system calculates a geometrical position and orientation of the markings pattern in relation to the optoelectronic image receiver, relative to the microscope.

Abstract: An operating microscope including an optical unit for forming an image of an object plane in oculars of the microscope, an optoelectronic image receiver coupled to the microscope and optics to form images, of objects placed in a region between a front objective of the microscope and an object plane of the microscope, on the optoelectronic image receiver. The microscope has a magnification factor of the optics to form images, and a system to detect optical markings forming a markings pattern placed on a surgical instrument or an object placed in the region between the front objective of the microscope and the object plane of the microscope. The system calculates a geometrical position and orientation of the markings pattern in relation to the optoelectronic image receiver, relative to the microscope.

Abstract: The invention relates to a method for positional optimization in navigation, in particular neural navigation in surgery with an operation microscope and at least one optoelectronic image detector which may be connected to the microscope and also a computer system. The data obtained from the at least one image detector which lie in the microscope field-of-view for the operator, contain information on the position of an operation instrument, in particular the instrument tip. The actual position of the instrument in the x- and y-direction as well as in the z-direction of a three-dimensional coordinate system is continuously or intermittently determined from the relevant positional data. A separation determination is carried out for the positional determination in the z-direction by means of depth of focus evaluation and/or stereoscopic image analysis.

Abstract: An operating microscope including an optical unit for forming an image of an object plane in oculars of the microscope, an optoelectronic image receiver coupled to the microscope and optics to form images, of objects placed in a region between a front objective of the microscope and an object plane of the microscope, on the optoelectronic image receiver. The microscope has a magnification factor of the optics to form images, and a system to detect optical markings forming a markings pattern placed on a surgical instrument or an object placed in the region between the front objective of the microscope and the object plane of the microscope. The system calculates a geometrical position and orientation of the markings pattern in relation to the optoelectronic image receiver, relative to the microscope.

Abstract: The invention relates to a method for positional optimisation in navigation, in particular neural navigation in surgery with an operation microscope and at least one optoelectronic image detector which may be connected to the microscope and also a computer system. The data obtained from the at least one image detector which lie in the microscope field-of-view for the operator, contain information on the position of an operation instrument, in particular the instrument tip. The actual position of the instrument in the x- and y-direction as well as in the z-direction of a three-dimensional coordinate system is continuously or intermittently determined from the relevant positional data. A separation determination is carried out for the positional determination in the z-direction by means of depth of focus evaluation and/or stereoscopic image analysis.

Abstract: A suction instrument for surgery, wherein the grip and the suction pipe of the suction instrument are produced as separate parts. The grip is comprised of a handpiece with an axially extending inner channel. The suction pipe is introduced into the distal end of the hand piece and can thus be adjusted and varied in its effective working length by inserting the suction pipe different axially distances into the hand piece. In its respective adjusted axial position and rotation the suction pipe is force-fittingly fixed or friction locked in the hand piece. Friction locking allows the axial position of the suction pipe in the hand piece to be freely varied, so that an effective length of the suction pipe and its rotation position in regard to the hand piece can be adapted optimally to the respective operation requirements, and can be readjusted as the operation progresses.