摘要:
A camera device for acquiring optical properties in a plurality of different wavelength ranges and spatial structure properties of an object includes a beam splitter for splitting light coming from an object into the plurality of different wavelength ranges; a first image sensor for generating a first sensor signal related to a first predetermined wavelength range; a first signal processing device for generating a first intensity image signal and a distance image signal using information about the temporal modulation of illumination light (M) and the first sensor signal; at least one second image sensor for generating a second intensity image signal for a second predetermined wavelength range; and a second signal processing device for generating a color image signal from the first intensity image signal and the second intensity image signal.
摘要:
An endoscopic system with at least one light source for generating at least partially coherent light, for exciting fluorescent light, with at least one light-conducting element, where the at least one light source and the at least one light-conducting element are positioned in a proximal supply unit. It is further provided with an optical radiance transmission link in an insertion part and with at least one fluorescence converter for conversion into white light. According to the invention, at least one actuator is present, which is coupled with at least one light-conducting element and/or with the at least one light source and/or with the at least one fluorescence converter. With the help of the actuator, perturbations or fluctuations concerning the at least one light-conducting element and/or the at least one light source and/or the at least one fluorescence converter are generated and thereby reduce the speckles in the endoscopic image.
摘要:
A bend sensor for measuring a deflection of a technical or medical instrument, consisting of an elongated body of electrically insulating polymer material, with a longitudinal axis and with fibers of an electrically conducting polymer material that are embedded in the body. The fibers are disposed essentially parallel to the longitudinal axis and at a distance from one another in the polymer body. A measuring unit is connected with the fibers and is suited for evaluating the modification of the electrical resistances of the fibers as a measurement of the deflection of the body from the longitudinal axis.
摘要:
Disclosed is an optical system for measuring the topography of a test object, comprising a system for projecting an optically recognizable test pattern onto the surface of an object area that is to be measured, and an image-recording system and image-evaluation system for determining the parallactically displaced image coordinates of the test pattern in the object area that is to be measured, the distance of the centers of the aperture diaphragms of the projection system and the image-recording system forming a test basis. Said optical system is characterized in that the test pattern consists of a limited number of elements that are placed at regular intervals in at least one first axial direction, said axial direction being rotated by an angle a relative to the vertical projection of the test basis.
摘要:
An endoscope for inspection of an observation cavity, in particular of an observation cavity in which a hot medium and/or infrared radiation is present, has a shaft in which an optical system is arranged. The shaft has an inner shaft and an outer shaft surrounding the latter at a distance, the optical system being arranged in the inner shaft. The shaft is configured in the region of its distal end in such a way that it is substantially opaque to electromagnetic radiation in the infrared spectral range.
摘要:
An illumination device for generating light and supplying the light to an observation device used in endoscopy or microscopy comprises a light source having at least one LED and at least one optical waveguide to guide the light emitted by the light source. The proximal end of the optical waveguide is arranged on a side of the light source which faces the optical waveguide. The illumination device furthermore comprises a cooling device to dissipate heat generated by the light source, which cooling device has at least one first cooling element for dissipating the heat generated by the light source, which cooling element is arranged on a side of the light source which faces away from the proximal end of the optical waveguide. The cooling device has a second cooling element for dissipating the heat generated by the light source, which second cooling element is arranged on the side of the light source which faces the proximal end of the optical waveguide. The at least one optical waveguide passes through the second cooling element.
摘要:
An optical instrument, in particular an endoscope, has a shaft and an inter-changeable head. The interchangeable head is detachably connected to the distal end of the shaft at a coupling point. The instrument also has a first transmission system for distal transmission of illuminating power, and a second transmission system for proximal transmission of image information, the first transmission system and the second transmission system passing through the coupling point. The interchangeable head and/or the coupling point are/is designed in such a way that upon loosening of the interchangeable head image information of perceptively modified quality is transmitted by the second transmission system.
摘要:
A lighting system for illumination of an observation space, especially an observation space in which a pressurized and/or hot medium is contained, comprises an optical-fiber cable, one end of which can be connected to a light source, and a lighting head, which is connected to the other end of the optical-fiber cable and whose distal end can be introduced into the observation space through an opening in a wall enclosing the observation space. The lighting head comprises a light guide rod made from a pressure and/or temperature-resistant material.
摘要:
A medical gear pump is used for suction and irrigation, in particular for endoscopy or the laboratory, and it has two meshing gears as conveying elements, one of which is joined to a drive mechanism. The gears are received in non-journal-mounted fashion in openings, and are each equipped with a helical tooth set. It is proposed to configure the helical tooth set such that, when viewed along a surface line of said gears, at least two tooth tip/root contact points of said meshing gears are present, and a contour of tooth spaces of the one gear is matched to the teeth of the other gear in such a way that when a tooth has completely penetrated into the tooth space, its tooth tip almost completely fills up the tooth space radially inside the pitch circle.
摘要:
A handpiece is disclosed for a multifunctional instrument for endoscopic surgery. The handpiece comprises a case; a connector disposed on the case and adapted to be connected to connecting lines such as electrical lines, liquid supply and discharge lines, and the like; at least one ultrasonic transducer arranged in the case; an ultrasonic sonotrode transmitting the ultrasonic energy; and at least one switch for controlling functions of the handpiece. The handpiece is characterized by, among other things, the provision that the sonotrode includes a long and thin probe section with a duct composed of several segments which are welded to each other.