Abstract: An apparatus configured for heat dissipation that includes a heat source, a heat sink and a heat conducting element. The heat conducting element conducts heat energy from the heat source to the heat sink along a heat conducting path, and the heat conducting element is arranged in such a way on the heat source and the heat sink and is configured to physically change in such a way with increasing temperature of the heat conducting element that: a) a first cross-sectional area between the heat source and the heat conducting element and/or a second cross-sectional area between the heat conducting element of the heat sink increases, and/or b) a length of the heat conducting path shortens. Further, a video endoscope having such an apparatus and a use of such an apparatus is provided.

Abstract: An optical observation instrument according to the invention, in particular a surgical microscope or exoscope, comprises an optics unit with an objective arrangement and at least one electronic image recorder, wherein the optics unit has a first stereo channel with a first beam path and a second stereo channel with a second beam path for recording a stereo image of an object field with the at least one electronic image recorder and wherein the first and the second beam path extend through the objective arrangement.

Abstract: The disclosure relates to an adjustment device for adjusting optical components of an optical instrument, having at least one adjustment screw via which the optical component arranged on a carrier is able to be fixed in an exact position relative to another component of the optical instrument. The adjustment screw includes an outer thread, and has a spring elasticity in a radial direction such that the adjustment screw is able to be fixed by being clamped with its outer thread in an inner thread of the carrier or of the other component wherein a screw tip is on the other component or the carrier. The disclosure further relates to a device arrangement for adjusting optical components of an optical instrument, having an adjustment device with at least one adjustment screw.

Abstract: A stereo endoscope for capturing a first image which is provided to be observed by a first eye and a second image which is provided to be observed by a second eye, including a shaft with a distal end region, a first image sensor in the distal end region of the shaft, for capturing the first image, and a second image sensor in the distal end region of the shaft, for capturing the second image. The first image sensor and the second image sensor are arranged offset relative to one another in a direction which is parallel to at least either a light-sensitive layer of the first image sensor or a light-sensitive layer of the second image sensor and which is orthogonal to a longitudinal axis the distal end region of the shaft. The first image sensor and the second image sensor are oriented in opposite directions.

Abstract: The present application provides a passive holding device for handling a trocar and a modular surgical system. The passive holding device has a fastening device with a coupling portion. A pivoting mechanism is connected to the coupling portion via a rotary joint. The pivoting mechanism has two L-shaped branches arranged parallel to one another, each having a short leg that is connected to a long leg via a pivot joint. The short leg of the first branch is longer than the short leg of the second branch and is connected to the long leg via a rotary shaft. The trocar holder has a gripping device and has an instrument brake. A tilting brake is arranged at the coupling portion, operatively connected to the rotary joint, and a pivoting brake is arranged at the coupling portion operatively connected to at least one of the terminal pivot joints.

Abstract: The invention relates to a filter interchange apparatus for an optical observation instrument having two beam paths, in particular for a stereoscopic observation instrument, in particular for a stereo video endoscope, a stereo exoscope or a stereo surgical microscope, wherein the filter interchange apparatus comprises a first filter wheel, a second filter wheel and a third filter wheel, wherein the filter wheels are arranged in succession along a common axle and are rotatable about the common axle and relative to one another. Each filter wheel comprises at least one filter and at least one free optical passage such that a filter or a free optical passage of each filter wheel is introducible into each of the two beam paths. The second filter wheel is drivable and the first filter wheel is coupled to the second filter wheel via a first entrainment element and the third filter wheel is coupled to the second filter wheel via a second entrainment element.

Abstract: An optical observation instrument according to the invention, in particular a surgical microscope or exoscope, comprises an optics unit with an objective arrangement and at least one electronic image recorder, wherein the optics unit has a first stereo channel with a first beam path and a second stereo channel with a second beam path for recording a stereo image of an object field with the at least one electronic image recorder and wherein the first and the second beam path extend through the objective arrangement. Further, the observation instrument comprises a retaining apparatus which comprises a retaining bracket, which engages over the optics unit, wherein the retaining bracket comprises an operating device with a number of operating elements for controlling a retaining arm, to which the retaining apparatus is connectable.

Abstract: An apparatus configured for heat dissipation that includes a heat source, a heat sink and a heat conducting element. The heat conducting element conducts heat energy from the heat source to the heat sink along a heat conducting path, and the heat conducting element is arranged in such a way on the heat source and the heat sink and is configured to physically change in such a way with increasing temperature of the heat conducting element that: a) a first cross-sectional area between the heat source and the heat conducting element and/or a second cross-sectional area between the heat conducting element of the heat sink increases, and/or b) a length of the heat conducting path shortens. Further, a video endoscope having such an apparatus and a use of such an apparatus is provided.

Abstract: The invention concerns a handle for a video endoscope including a housing and an interface portion rotatably supported relative to the housing where the interface portion includes a first connector element at its distal end section that is connectable to a second connector element of an associated elongate shaft of the video endoscope. Thereby a detachable, rotatable electrical and/or mechanical connection between the handle and the associated shaft is achieved. The coupling includes an electrical connection assembly arranged at an exterior of the interface portion forming an electrical connection to a stationary electric component of the handle. The handle includes a mechanical rotation stop for a rotation of the interface portion relative to the housing such that a rotation range is limited and damage to the electrical connection assembly is prevented.

Abstract: An apparatus for heat dissipation is provided comprising a heat source, a heat sink and a heat conducting element, wherein the heat conducting element conducts heat energy from the heat source to the heat sink along a heat conducting path, and wherein the heat conducting element is arranged in such a way on the heat source and the heat sink and is configured to physically change in such a way with increasing temperature of the heat conducting element that a) a first cross-sectional area between the heat source and the heat conducting element and/or a second cross-sectional area between the heat conducting element of the heat sink increases, and/or b) a length of the heat conducting path shortens. Further, a video endoscope having such an apparatus and a use of such an apparatus are disclosed.

Abstract: A gear arrangement including two drive units (210, 220, 310, 320, 410), and two translatory transmission elements (151, 152, 251, 252, 351, 352), to each of which a rotationally movable function unit (141, 142) of a distally arranged two-part end effector (140) can be coupled. The first drive unit (210, 310, 410) has at least one proximally arranged rotation element (311, 411) or a thrust element (210) for opening or closing the end effector (140) by rotation of at least one function unit (141, 142). The second drive unit (220, 320), with which the translatory transmission elements (151, 152, 251, 252, 351, 352) are movable in opposite directions, has at least one proximally arranged rotation element (224, 320, 421) for simultaneous and unidirectional pivoting of the function units (141, 142) of the end effector (140). A surgical instrument includes the gear arrangement (200, 300, 400) in the handle (180).

Abstract: The present application relates to an endoscope apparatus including a shaft component with a proximal end and a distal end. The shaft component is arranged in an outer shaft. The endoscopy apparatus includes an image capture device having an objective lens for generating a real image and an image sensor for capturing the image and generating an image signal. The endoscopy apparatus includes a pivot joint device which couples the image capture device to the shaft component in a manner pivotable about two orthogonal axes but rigid in respect of a rotation about the longitudinal axis of the shaft component. The endoscopy apparatus includes a pivot control device to set a pivot position of the image capture device relative to the shaft component which depends on the rotational position of the image capture device and the shaft component relative to the outer shaft.

Abstract: An optical observation instrument according to the invention, in particular a surgical microscope or exoscope, comprises an optics unit with an objective arrangement and at least one electronic image recorder, wherein the optics unit has a first stereo channel with a first beam path and a second stereo channel with a second beam path for recording a stereo image of an object field with the at least one electronic image recorder and wherein the first and the second beam path extend through the objective arrangement. Further, the observation instrument comprises a retaining apparatus which comprises a retaining bracket, which engages over the optics unit, wherein the retaining bracket comprises an operating device with a number of operating elements for controlling a retaining arm, to which the retaining apparatus is connectable.

Abstract: The application relates to a medical instrument with a hollow shaft, with a handle at the proximal end and a tool with two jaw parts at the distal end, of which at least one jaw part is pivotable, wherein a distal end region of the shaft is configured as a deflectable, rotatable tool tip, and wherein the jaw parts are adjustable between closed and open positions, wherein rotation of the tool tip and actuation of the jaw parts take place via actuation elements coupled at the proximal end to the handle. The distal end of the shaft and the proximal end of the tool tip are arc-shaped, and roll on each other for the deflection of the tool tip, and are conveyed from the shaft into the deflectable tool tip via at least two identical joints, which are connected in series and which can transmit rotation and translatory movements.

Abstract: The invention relates to a filter interchange apparatus for an optical observation instrument having two beam paths, in particular for a stereoscopic observation instrument, in particular for a stereo video endoscope, a stereo exoscope or a stereo surgical microscope, wherein the filter interchange apparatus comprises a first filter wheel, a second filter wheel and a third filter wheel, wherein the filter wheels are arranged in succession along a common axle and are rotatable about the common axle and relative to one another. Each filter wheel comprises at least one filter and at least one free optical passage such that a filter or a free optical passage of each filter wheel is introducible into each of the two beam paths. The second filter wheel is drivable and the first filter wheel is coupled to the second filter wheel via a first entrainment element and the third filter wheel is coupled to the second filter wheel via a second entrainment element.

Abstract: An optical observation instrument according to the invention, in particular a surgical microscope or exoscope, comprises an optics unit with an objective arrangement and at least one electronic image recorder, wherein the optics unit has a first stereo channel with a first beam path and a second stereo channel with a second beam path for recording a stereo image of an object field with the at least one electronic image recorder and wherein the first and the second beam path extend through the objective arrangement.

Abstract: A stereo endoscope for capturing a first image which is provided to be observed by a first eye and a second image which is provided to be observed by a second eye, including a shaft with a distal end region, a first image sensor in the distal end region of the shaft, for capturing the first image, and a second image sensor in the distal end region of the shaft, for capturing the second image. The first image sensor and the second image sensor are arranged offset relative to one another in a direction which is parallel to at least either a light-sensitive layer of the first image sensor or a light-sensitive layer of the second image sensor and which is orthogonal to a longitudinal axis the distal end region of the shaft. The first image sensor and the second image sensor are oriented in opposite directions.

Abstract: The present application provides a passive holding device for handling a trocar and a modular surgical system. The passive holding device has a fastening device with a coupling portion. A pivoting mechanism is connected to the coupling portion via a rotary joint. The pivoting mechanism has two L-shaped branches arranged parallel to one another, each having a short leg that is connected to a long leg via a pivot joint. The short leg of the first branch is longer than the short leg of the second branch and is connected to the long leg via a rotary shaft. The trocar holder has a gripping device and has an instrument brake. A tilting brake is arranged at the coupling portion, operatively connected to the rotary joint, and a pivoting brake is arranged at the coupling portion operatively connected to at least one of the terminal pivot joints.

Abstract: A gear arrangement including two drive units (210, 220, 310, 320, 410), and two translatory transmission elements (151, 152, 251, 252, 351, 352), to each of which a rotationally movable function unit (141, 142) of a distally arranged two-part end effector (140) can be coupled. The first drive unit (210, 310, 410) has at least one proximally arranged rotation element (311, 411) or a thrust element (210) for opening or closing the end effector (140) by rotation of at least one function unit (141, 142). The second drive unit (220, 320), with which the translatory transmission elements (151, 152, 251, 252, 351, 352) are movable in opposite directions, has at least one proximally arranged rotation element (224, 320, 421) for simultaneous and unidirectional pivoting of the function units (141, 142) of the end effector (140). A surgical instrument includes the gear arrangement (200, 300, 400) in the handle (180).

Abstract: An apparatus for heat dissipation is provided comprising a heat source, a heat sink and a heat conducting element, wherein the heat conducting element conducts heat energy from the heat source to the heat sink along a heat conducting path, and wherein the heat conducting element is arranged in such a way on the heat source and the heat sink and is configured to physically change in such a way with increasing temperature of the heat conducting element that a) a first cross-sectional area between the heat source and the heat conducting element and/or a second cross-sectional area between the heat conducting element of the heat sink increases, and/or b) a length of the heat conducting path shortens. Further, a video endoscope having such an apparatus and a use of such an apparatus are disclosed.