Abstract: An optical observation apparatus has an optical image channel for viewing optical field-of-view images, a processing unit to generate a first electronic insertion image via a first electronic image channel, and a data insertion image projector for generating an optical insertion image from the first electronic insertion image and inserting that image into the optical field-of-view image. An acquisition device acquires the optical field-of-view image without the optical insertion image inserted by the data insertion image projector. A second electronic image channel has a superimposition module, that superimposes the electronic field-of-view image with an electronic insertion image and provides the superimposed images via the second electronic image channel. The processing unit generates a second electronic insertion image, provides available display data elements, and makes it possible to assemble the electronic insertion images and assign them to different electronic image channels.

Abstract: A method for carrying out eye surgery comprises a comparison of images recorded before surgery with images recorded during surgery in order to generate a marker which represents a target orientation of an intraocular lens or a difference between a current orientation and the target orientation of the intraocular lens. An eye surgery system respectively comprises an imaging system which is used during a surgery and has a camera, and a diagnostic system which is used before surgery and which also has a camera. The imaging system used during surgery comprises an image processing device in order to perform a computation based on the recorded images, and in order to determine a respective orientation value, from which a representation of a marker representing the target orientation of the intraocular lens is obtained.

Abstract: A surgical system controls a fluid and includes an irrigation line and a first fluid vessel for holding the irrigation fluid. The irrigation line connects the first fluid vessel to a handpiece. An aspiration input line connects a suction pump to the surgical handpiece and permits the suction pump to draw fluid through the surgical handpiece. A pressure sensor detects the pressure of the fluid in the aspiration input line. An aspiration output line connects the suction pump to a collection vessel to permit fluid from the suction pump to be conducted into the collection vessel. A second fluid vessel accommodates irrigation fluid therein and an aspiration ventilation line connects the second fluid vessel to the aspiration input line. A venting valve in the aspiration ventilation line is switchable in dependence upon the fluid pressure in the aspiration input line.

Abstract: An ophthalmic surgical microscope system (100) includes a surgical microscope (101). The surgical microscope (101) is accommodated on a carrier unit (109) so as to be adjustable in elevation in order to be able to adjust a work distance (124) between the surgical microscope (101) and a patient eye (120). A first drive (112) is provided for adjusting the elevation of the surgical microscope (101). The ophthalmic surgical microscope system (100) includes an ophthalmic ancillary module (114) having an adjustable ophthalmic magnifier lens (116). The work distance (125) between the ophthalmic magnifier lens (116) and the patient eye (120) can be adjusted with a second drive (117). A drive coupling (123) is provided which couples the first drive for adjusting elevation of the surgical microscope (101) to the second drive (117) for adjusting the ophthalmic magnifier lens (116).

Abstract: The invention relates to a balloon catheter for an X-ray applicator and an X-ray applicator—for use with the corresponding balloon catheter. Said balloon catheter can be filled with a medium and comprises a balloon—that expands with respect to the volume and a catheter shaft for inserting the X-ray applicator. Said balloon or the catheter shaft comprises a rigid inner end piece in the extension of the catheter shaft.

Abstract: The invention relates to a microscope or stereomicroscope for representing an object that can be placed on an object plane (1) of the stereomicroscope, the latter providing at least one pair of optical paths (2a, 2b, 2c, 2d) and comprising at least one deflection element with a reflecting surface (3; 3?) and a representation system (26; 26*; 26**; 26?) containing several optical elements. The optical elements comprise a plurality of lenses (4-8, 11, 13, 14, 16?-21?, 16?-21?, 16??-21?? 16??-21??). In addition, the optical elements are configured in such a way, that pupil planes (27a, 27b) of the optical representation paths (2a, 2b) intersect the reflecting surface (3; 3?) of the deflection element or are located at a distance (S, S?; S*, S*?) from said reflecting surface (3; 3?). The distance (S, S?; S*, S*?) is less than 1.5 times, in particular less than 1.

Abstract: A surgical microscope (100) is especially suited for use in neurosurgery. The surgical microscope has an illuminating arrangement (101) for making available illuminating light in an operating region (117) to be examined with the surgical microscope (100). The illuminating arrangement (101) contains a high-power light source (102) which includes an intensity adjusting device (112). The intensity adjusting device (112) makes possible to adjust the intensity of the illuminating light (116), which is guided to the object region (117), between a maximum value and a minimum value. The surgical microscope (100) has a control unit (170) for the illuminating arrangement (101) which includes an operator-controlled module (172) via which the illuminating arrangement (101) can be activated and controlled. For adjusting the intensity of the illuminating light (116) guided to the operating region (117), the control unit coacts with the adjustable filter unit (112).

Abstract: In a system and a method for examining an object containing a fluid liquid, the object is illuminated with measuring light and images are temporarily shortly subsequently recorded. The images are evaluated per pixel to determine perfusion data from a high frequency portion above 1 kHz and to determine further information about properties of the object from a low frequency portion below 100 Hz, such as a degree of oxygenation of hemoglobin, a concentration of hemoglobin or a concentration of ICG. This information determined by evaluation is displayed in a form of an image in superposition with a white light image of the object.

Abstract: A microscopy assembly comprises a stand, a stereo microscope supported by the stand, and a mouth switch assembly mounted to a holder, the mouth switch assembly including a mouth piece grippable by a user's teeth, and with a force sensor actuatable by the exertion of pressure by a user's lip while the mouth piece is held by the user's teeth, the force sensor including an actuating element arranged at a side of the mouth piece, wherein an actuating area of the actuating element located next to a front end of the mouth piece is spaced apart from the front end of the mouth piece by a distance larger than 4 mm and smaller than 35 mm.

Abstract: A medical illumination unit (1) has an LED chip (15) and a rod-shaped body (5) with a proximal end (11) and a distal end (7). A distal hollow section (9) begins before the distal end (7) and reaches the distal end (7), and a supply lead section (12) begins at the proximal end (11) and reaches the distal hollow section (9). The LED chip (15) is in the distal hollow section of the rod-shaped body (5) and is supplied with energy through the supply lead (12). A luminescent converter is between the LED chip (15) and the distal end (7) of the rod-shaped or tubular body or at the distal end of the rod-shaped body (5), the converter properties of which are selected to convert light emitted by the LED chip (15) into light with a desired wavelength distribution.

Abstract: A camera holder (3) is provided for fixing a camera (11) or a camcorder to an optical observation device. The holder (3) has a variable-length sleeve (13) with a first end configured to receive the camera objective and a second end configured to secure the sleeve (13) relative to the optical observation device. The holder (3) also has an adjusting device (19) fixed to the sleeve (13). The adjusting device (19) has a pin for connection with a stand mating thread of a camera (11) and is configured to compensate for an offset between the stand mating thread and the camera objective. The adjusting device (19) enables the camera (11) to be positioned with respect to the sleeve and the optical observation device.

Abstract: A method is disclosed for determining an illumination beam dose in surgical field illumination. Said method comprises the following steps: at least one actual illumination-relevant value is sensed; and an illumination beam dose is calculated from said sensed actual value. Sensing of the actual illumination-relevant value includes sensing of a value of at least one adjustable parameter of an illumination device. Furthermore, simulated dose characteristics associated with the adjustable parameter are selected, at least one simulated dose value is calculated taking into account the value of the adjustable parameter and the associated simulated dose characteristics, and the illumination beam dose is calculated taking into account the at least one simulated dose value. Also disclosed are an apparatus, a computer program product, and a surgical microscope for carrying out said method.

Abstract: A surgical microscopy system comprises microscopy optics for generating an image of an eye under surgery. A pattern generator generates a pattern to be superimposed with the image. An eye-tracker is provided for tracking a position of the superimposed pattern with respect to the image in case of a movement of the eye. The superimposed pattern comprises pattern elements that are equally distributed on first and second circles of different sizes, in order to give assistance when placing a suture during a corneal transplant. The superimposed pattern may also provide an assistance for orientating a toric intra-ocular lens.

Abstract: A surgical microscope (100) has an illuminating arrangement (110) which can guide illuminating light to the object region (105) with a first illuminating beam path (111) and with a second illuminating beam path (112). A light exit unit is provided in the first illuminating beam path (111). An illuminating field diaphragm is mounted in the second illuminating beam path. The first illuminating beam path (111) has an illuminating optic which images the light exit plane of the light exit unit or a plane conjugated to the light exit plane into a first image plane (350). An illuminating optic is provided in the second illuminating beam path (112) and this illuminating optic images the illuminating field diaphragm into a second image plane (250) different from the first image plane.

Abstract: The invention is directed to an ophthalmologic surgical microscope system (100) for examining the eye of a patient. The ophthalmologic surgical microscope system includes a surgical microscope (101) as well as a carrier arrangement (102) wherein the surgical microscope (101) is accommodated so as to permit elevation adjustment in order to be able to adjust a work distance between the surgical microscope (101) and the eye of the patient. An ophthalmoscopic ancillary module (103) is connected to the surgical microscope and has an adjustable ophthalmoscopic magnifier system in order to adjust a distance between the ophthalmoscopic magnifier and the surgical microscope (101). The ophthalmologic surgical microscope system (100) has a sensor system for measuring the distance of the surgical microscope (101) from the patient eye. The sensor system is configured as an OCT-measuring device.

Abstract: The disclosure relates to an ophthalmosurgical system that includes a first irrigation fluid source. The system also includes a first irrigation fluid line connected to the first irrigation fluid source at a first end and open at the other end. The system further includes an aspiration fluid line, by which fluid can be removed from the ocular lens. In addition, the system includes a suction pump, to which the aspiration fluid line is connected, and a second irrigation fluid source, to which a second irrigation fluid line is connected. The second irrigation fluid line is connected to the first irrigation fluid line at a coupling site. The system also includes a first valve, which is disposed between the first end of the first irrigation fluid line and the coupling site, and a second valve, which is disposed between the second irrigation fluid source and the coupling site.