Abstract: An endoscope (1) with an endoscope shaft (3) in which an illumination device (11) and a rotatably mounted image sensor (12) are arranged in a distal region (8) is provided, and includes a handle (2) in which a rotatably mounted heat sink (16) is arranged, wherein the image sensor (12) is thermally connected to the heat sink (16), for conjoint rotation therewith, via a heat transmission element (15).

Abstract: The electronic endoscope has an endoscope shaft (2) and an electronics housing (3), and also an optical waveguide (5) having optical fibers (4). The endoscope shaft (2) is formed on the electronics housing (3) or connected thereto, the electronics housing (3) being closed so as to be vapor-tight and liquid-tight from outside. The optical waveguide (5) extends between a distal end (6) of the endoscope shaft (2), directed away from the electronics housing (3), and a light source (7) arranged in the electronics housing (3). The optical waveguide (5) has, at its proximal end (8), an optical waveguide connector (9), with which a light exit point (10) from the electronics housing (3) is closed off in a vapor-tight and liquid-tight manner.

Abstract: An endoscopy device (1) with an endoscope (2) and a camera control unit (12) is provided. The endoscope (2) has an endoscope shaft (3) and an endoscope head (4), and the endoscope shaft (3) is made of a metallic material. Electronics (8) are arranged in the endoscope head (4) and are connected to an attachment cable (10), and the electronics (8) and the attachment cable (10) are shielded by an electronics shield (14). A galvanic barrier (15) is set up between the electronics shield (14) and the endoscope shaft (3) and couples the endoscope shaft (3) capacitively to the electronics shield (14).

Abstract: An initialization method for initializing a transfer of a recording image data stream from an image sensor of an image recording apparatus to a display unit, wherein initially a display image data stream in the form of a test image is transferred from an image processing apparatus to the display unit and a recording image data stream is transferred from an image recording apparatus to the image processing apparatus. A changeover of a reproduction on the display unit to the recording image data stream is preceded by a correction value being calculated for a phase shift between the display image data stream and the recording image data stream and being transferred to the image recording apparatus, and the recording image data stream is phase-shifted by the correction value. Subsequently the display image data stream is changed over to the recording image data stream (21) and the image recorded by the image sensor or the sequence of images is reproduced with the display unit.

Abstract: To improve the quality of transmission of a signal from an image sensor to a camera controller of an endoscopy arrangement by a cable while maintaining electrical safety standards, a first circuitry arrangement used to transmit the signal within the cable includes galvanic isolation from a second circuitry arrangement used to further process the signal within the camera controller. The galvanic isolation is formed downstream of a proximal end of the cable in the signal direction, and the first circuitry arrangement has a, preferably passive, impedance matching circuit, for example arranged at the proximal end of the cable or in the camera controller. This impedance matching circuit is configured to compensate signal distortions, which arise during the transmission of the signal that is produced by the image sensor to the camera controller, preferably such that a frequency spectrum of the signal produced by the image sensor can be reproduced.

Abstract: An arrangement of an image recording apparatus 1 with a storage device (9) on a side of an interface (8) with a camera control unit (2) that faces the camera head (3) and for implementing in the camera control unit (2) a configuration unit (10) with which camera-head-specific information is readable from the storage device (9) and transmittable to an image signal pre-processing unit (4) of the camera head (3) for configuration.

Abstract: An image transfer arrangement (1) for the wireless transfer of image information items between a transmitter (4) and a receiver (8), wherein at least two communication channels (11) which are physically independent of one another are formed between the transmitter (4) and the receiver (8) and enable impairment and interference-free communication.

Abstract: An optical assembly (1, 100) is provided, including an optical functional unit (2), a housing (3), which at least partly encloses the optical functional unit (2), and an adjusting device (4), by which a desired position of the optical functional unit (2) relative to an optical axis (16) of the optical assembly (1, 100) is settable. The adjusting device (4) is configured to the effect that the position of the optical functional unit (2) is set by way of an operative connection (5) between an actuation part (9, 10) and a holding part (11, 12, 28, 29) of the adjusting device (4). The operative connection (5) is configured in the region of a closed housing wall (6), and wherein the optical functional unit (2), after the setting of the desired position, is fixable in this position.

Abstract: In the case of an objective arrangement (1) having a deflection unit (4) which guides an imaging beam path (9) from a light entrance (2) to a light exit (3) via a first reflection surface (6) and a second reflection surface (7), it is provided to embody a region (8) of total internal reflection at least in the second reflection surface (7), with this region being configured for total internal reflection in the imaging beam path (9) and this region forming part of a transmission region (5) that is disposed upstream of the first reflection surface (6), through which imaging rays from the light entrance (2) are incident on the first reflection surface (6).

Abstract: A coupling device (9) for an optical waveguide (8), in particular for an endoscope (2) or a light source (3), having an optical waveguide receptacle (11) aligned with a light-coupling optical unit (10), and having a centering device (12) for aligning an optical waveguide (8) with respect to the optical axis (26). The centering device (12) has at least two transmission elements (25) acted upon by a spring (30), and has centering elements (19), and wherein the spring force is distributed by a transmission element (25) uniformly to all the centering elements (19).

Abstract: For an imaging method for presenting fluorophores (5) by optical excitation, spontaneous emission of fluorescence and detection of same, a single, conventional sensor (6) is used having at least two color channels, which detect an excitation light used to excite the fluorophore (5) and the fluorescence emitted by the fluorophore (5) with different sensitivities. Due to the different spectral distribution of the sensitivity of the color channels, it is possible to separate the component of the excitation light from the component of the fluorescence, in particular in a specific pixel, from one another by processing output signals of said color channels, in particular by conversion into a color space and/or by calculation of color saturation values. From this, the intensity of the fluorescence can be deduced, preferably taking account of a relative luminance measured by the color channels, even though reflected excitation light reaches the color channels, in particular in an unfiltered manner.

Abstract: So as to improve the quality of the transmission of a signal, in particular an image or video signal, from an image sensor (3) to a camera controller (5) of an endoscopy arrangement (1) by a cable (4) while maintaining electrical safety standards, a first circuitry arrangement that is used to transmit the signal within the cable (4) is embodied with galvanic isolation from a second circuitry arrangement (19) that is used to further process the signal within the camera controller (5). The galvanic isolation (6) is formed to this end, preferably downstream of a proximal end (7) of the cable (4) in the signal direction, and the first circuitry arrangement has an impedance matching circuit (8), preferably with a passive embodiment, for example arranged at the proximal end (7) of the cable (4) or in the camera controller (5).

Abstract: An endoscope is provided having a first beam path formed at least in a distal end region, a second beam path formed at the end region, which second beam path is arranged offset with respect to the first beam path for recording a stereoscopic image, and an image recording chip, which is configured for electronically recording images captured via the first beam path and the second beam path. A beam deflection device is provided having at least one deflection element arranged for displacement along a straight line adjustment travel path between a first position and a second position, and the beam deflection device, in the first position, guides an image captured using the first beam path to the image recording chip and, in the second position, guides an image captured using the second beam path to the image recording chip.

Abstract: An endoscope (1) with a shaft (2), a grip (3) connected to the shaft (2) at a proximal end region of the shaft (2), and a viewing region (4) formed in a distal end region of the shaft (2) by optical elements. The shaft (2) has at least one proximity sensor (5), of which the measuring region lies at least outside the viewing region (4), preferably in such a way that the measuring region of the proximity sensor (5) covers at least the distance of the lateral region of the distal end region. The endoscope has an evaluation device (6) which is configured to generate a warning signal when a definable distance threshold value is undershot.

Abstract: In an endoscope (1), two optical paths (3, 4) for stereoscopic vision are formed, wherein each optical path (3, 4) is lead from the inside to an interface (16, 19) with an optically more dense material (14) in relation to the surroundings (13) at a point of incidence (22, 25), wherein each optical path (3, 4) can be opened and interrupted by modifying the reflection behavior at the respective point of incidence (22, 25).

Abstract: A control valve (8) for a medical suction device (1) is provided, with the control valve (8) having an actuating element for freeing and closing a flow path (15) through a valve chamber (11) through the use of a valve plunger (12). Additional air intake openings (16) are formed on the actuating element (10) and define an additional flow path (21) through the valve chamber (11).

Abstract: An endoscope (1) includes a first beam path (3) formed at least at a distal end (2), and an image recording chip (5), which captures the first beam path (3). The endoscope includes a shutter apparatus (7) having a shutter element (8) composed of a semiconductor material, which is formed in the first beam path (3). The shutter element (8) is arranged adjustably between a position that releases the first beam path (3) and a position that alters a transmission in the first beam path (3), in particular a position that switches off the first beam path (3).

Abstract: In a device (1) for monitoring and/or manipulating objects that are arranged in a cavity that can be accessed through a narrow opening, a tubular or hose-shaped insertion part (2) is provided, on which a flexible section (4) is formed, which can be controlled by a Bowden cable (5), the Bowden cable (5) acting on an actuating element (10) which is rotatably supported in a joint (11) which includes a joint socket (13) and a corresponding joint ball (12) that engages with the joint socket (13).