Abstract: A method for calibrating a medical imaging device is provided. The medical imaging device may be an endoscope system or an exoscope system. The medical imaging device includes an optical system with optics and an imaging sensor for capturing an image of a viewing region, and image information of the image being subject to a spectral deviation as a result of an internal and/or external influence, as a result of the optical system, lighting and/or an ambient condition, said method having multiple steps. A medical imaging device, in particular a medical endoscope or a medical exoscope incorporating the method is also provided.

Abstract: An endoscopic and/or exoscopic imaging device for spectral, in particular multispectral and/or hyperspectral, imaging for an endoscope, microscope and/or an exoscope, comprising at least one shaft and comprising at least one imaging channel situated at least in part in the shaft, which imaging channel comprises at least one first imaging branch that has having at least one first spectrally selective beam splitter that spectrally selectively splits an optical image of an original spectral range into at least one first partial spectral image of a first spectral range and at least one further first partial spectral image of a further first spectral range, wherein the first spectral range is different from the further first spectral range, and the first imaging branch comprises a first image sensor, at least for capturing the first partial spectral image, and the first imaging branch comprises at least one first relay lens for relaying the further first partial image.

Abstract: An endoscope includes a shaft having a distal end, an optical imaging device at the distal end of the shaft for producing a real image of an object observed by means of the endoscope and at least one of an image transfer device for transmitting the real image and an image sensor for capturing the real image. The imaging device has curved light-refracting interfaces, which are tilted in relation to one another.

Abstract: The invention relates to an illumination device (10) for an endoscope (20), the device comprising illumination means (1) for coupling light into a light guide (2) connectable to the device, the illumination means comprising an LED matrix array (3) comprising a plurality of LED pixels (4a, . . . , 4n) forming an emission area (4), and the device comprising a light guide port (5) associated with the illumination means (1) for positioning a light-guiding transmission area (2a), which is disposed at an end of the light guide, essentially orthogonally to a main emission direction (L) of the emission area (4) of the LED matrix array (3), wherein the device comprises detection means which are configured to detect LED pixels of the emission area (4) that are directed at non-light-guiding portions (7a, , . . . , 7n) of the light guide (2) in the main emission direction (L), and wherein the device (10) has a control unit (8) which is configured to selectively operate the LED pixels (4a, . . .

Abstract: Device for the simultaneous fixation of medical instruments, the device having a joint member which has a holding section in the form of a spherical segment, the spherical segment having a continuous cavity along a longitudinal axis, the holding section being subdivided into at least two holding segments perpendicular to the longitudinal axis, and at least two arm elements being arranged on the joint member, the apparatus further comprising a tension ring supported by the support surfaces and a tensioning element configured to press the support segments together, wherein when the support segments are pressed together, the support surfaces press against the tension ring. Furthermore, a system with such a device is revealed.

Abstract: A device for simultaneous fixation of medical instruments is disclosed, the device comprising a holding portion, a coupling element and a pushing element, wherein the coupling element is configured for the holding portion to be pivoted about a pivot axis, and the pushing element is configured, in a first position, not to exert a force or a first force on the holding portion so that the holding portion can be pivoted, and, in a second position, to exert a second force, which is greater than the first force, on the holding portion so that the holding portion can be pivoted with respect to the first force. is fixed with respect to rotation about the pivot axis. A system with such a device is also disclosed.

Abstract: A device for simultaneous fixation of medical instruments is disclosed, the device comprising a holding portion, a coupling element and a pushing element, wherein the coupling element is configured for the holding portion to be pivoted about a pivot axis, and the pushing element is configured, in a first position, not to exert a force or a first force on the holding portion so that the holding portion can be pivoted, and, in a second position, to exert a second force, which is greater than the first force, on the holding portion so that the holding portion can be pivoted with respect to the first force. is fixed with respect to rotation about the pivot axis. A system with such a device is also disclosed.

Abstract: A light source configured for fluorescence diagnosis comprises a first semiconductor-illuminant based light emission unit configured to emit first light in a broadband first wavelength spectrum, a second semiconductor-illuminant based light emission unit configured to emit second light in a narrowband second wavelength spectrum for excitation of fluorescence, a spectral filter for the first light emission unit that is configured to block spectral components of the first wavelength spectrum which are assigned to a color channel of a camera the fluorescence is to be detected with, and to transmit remaining spectral components of the first wavelength spectrum, a brightness control for the first light emission unit configured to dim the intensity of the emitted first light, and an optical intensity attenuator for the first light emission unit that is configured to reduce the intensity of the emitted first light below the minimum intensity obtainable through the brightness control without the intensity attenuator.

Abstract: An endoscope having an elongate shaft, an objective arranged in a distal end region of the shaft for generating an image of an object field in an image plane. The objective having a beam splitter, and an image recorder for recording the image of the object field and an optical waveguide for forwarding illumination radiation from a proximal region to the distal end region of the shaft. The endoscope being embodied as a contact endoscope, a sensor area of the image recorder arranged in the image plane and an emergence portion of the optical waveguide adapted to forward at least some of the illumination radiation to the beam splitter to illuminate the object field.

Abstract: An endoscope having an elongate shaft, an objective arranged in a distal end region of the shaft for generating an image of an object field in an image plane. The objective having a beam splitter, and an image recorder for recording the image of the object field and an optical waveguide for forwarding illumination radiation from a proximal region to the distal end region of the shaft. The endoscope being embodied as a contact endoscope, a sensor area of the image recorder arranged in the image plane and an emergence portion of the optical waveguide adapted to forward at least some of the illumination radiation to the beam splitter to illuminate the object field.

Abstract: Still image display of a recent video image of tissue as a reference still image prior to a switch in the mode of illumination of the tissue. The still image is displayed concurrently with live video of the tissue under a different mode of illumination, to facilitate discrimination between healthy and diseased tissue. When a practitioner switches a light source from a “first light” to a “second light”, the second light video may be frozen/captured and displayed as a reference still image as a PIP, and the second light live video is displayed concurrently. The second light can be infrared and/or near infrared light. The second light can include structured light to project a structured light pattern to facilitate structure measurements. The second light source is configured with a numerical aperture greater than the first light source.

Abstract: An endoscope includes a shaft having a distal end, an optical imaging device at the distal end of the shaft for producing a real image of an object observed by means of the endoscope and at least one of an image transfer device for transmitting the real image and an image sensor for capturing the real image. The imaging device has curved light-refracting interfaces, which are tilted in relation to one another.

Abstract: Device for the simultaneous fixation of medical instruments, the device having a joint member which has a holding section in the form of a spherical segment, the spherical segment having a continuous cavity along a longitudinal axis, the holding section being subdivided into at least two holding segments perpendicular to the longitudinal axis, and at least two arm elements being arranged on the joint member, the apparatus further comprising a tension ring supported by the support surfaces and a tensioning element configured to press the support segments together, wherein when the support segments are pressed together, the support surfaces press against the tension ring. Furthermore, a system with such a device is revealed.

Abstract: An illumination arrangement according to the invention, in particular for an endoscope, comprises at least three light sources for generating a respective input light beam, and a beam combination device (5, 21), wherein the beam combination device (5, 21) comprises at least two beam splitters for combining the at least three input light beams to form an output light beam, at least three collimator lenses (7, 8, 9) embodied as GRIN lenses and serving for collimating and coupling a respective one of the input light beams into one of the beam splitters, and at least one further GRIN lens for coupling the output light beam into an optical waveguide. The invention also relates to a beam combination device and a method for coupling at least three input light beams into an optical waveguide, in particular into an optical waveguide of an endoscope.

Abstract: A beam combining device for combining light from a first light source and light from a second light source of a light-source device for a medical apparatus includes a body made of a transparent material, a face which reflects in at least either a dichroic or polarization-dependent manner and is situated in or on the body, which face is transparent to light having a first spectrum or a first polarization and reflects light having a second spectrum or a second polarization, and a light-entrance face on the body, which light-entrance face is provided and arranged so that light enters the beam combining device through the light-entrance face. At least either the light-entrance face or the face reflecting in a dichroic or polarization-dependent manner is curved.

Abstract: An illumination arrangement according to the invention, in particular for an endoscope, comprises at least three light sources for generating a respective input light beam, and a beam combination device (5, 21), wherein the beam combination device (5, 21) comprises at least two beam splitters for combining the at least three input light beams to form an output light beam, at least three collimator lenses (7, 8, 9) embodied as GRIN lenses and serving for collimating and coupling a respective one of the input light beams into one of the beam splitters, and at least one further GRIN lens for coupling the output light beam into an optical waveguide. The invention also relates to a beam combination device and a method for coupling at least three input light beams into an optical waveguide, in particular into an optical waveguide of an endoscope.

Abstract: An endoscope having an elongate shaft, an objective arranged in a distal end region of the shaft for generating an image of an object field in an image plane. The objective having a beam splitter, and an image recorder for recording the image of the object field and an optical waveguide for forwarding illumination radiation from a proximal region to the distal end region of the shaft. The endoscope being embodied as a contact endoscope, a sensor area of the image recorder arranged in the image plane and an emergence portion of the optical waveguide adapted to forward at least some of the illumination radiation to the beam splitter to illuminate the object field.

Abstract: A light source device for endoscopic or exoscopic applications includes a flat first light source, a second light source, an illuminating beam path that is configured to provide a first light beam emanating from the first light source for an endoscopic or exoscopic application, and a coupling device to couple a second light beam from the second light source into the illuminating beam path, whereby the coupling device is configured in such a way that at the coupling site the cross-section surface of the second light beam is smaller than the cross-section surface of the first light beam.

Abstract: Still image display of a recent video image of tissue as a reference still image prior to a switch in the mode of illumination of the tissue. The still image is displayed concurrently with live video of the tissue under a different mode of illumination, to facilitate discrimination between healthy and diseased tissue. When a practitioner switches a light source from a “first light” to a “second light”, the second light video may be frozen/captured and displayed as a reference still image as a PIP, and the second light live video is displayed concurrently. The second light can be infrared and/or near infrared light. The second light can include structured light to project a structured light pattern to facilitate structure measurements. The second light source is configured with a numerical aperture greater than the first light source.

Abstract: A beam combining device for combining light from a first light source and light from a second light source of a light-source device for a medical apparatus includes a body made of a transparent material, a face which reflects in at least either a dichroic or polarization-dependent manner and is situated in or on the body, which face is transparent to light having a first spectrum or a first polarization and reflects light having a second spectrum or a second polarization, and a light-entrance face on the body, which light-entrance face is provided and arranged so that light enters the beam combining device through the light-entrance face. At least either the light-entrance face or the face reflecting in a dichroic or polarization-dependent manner is curved.