摘要:
A flexible endoscope has at least one outer protective coat, one protective mesh and elements arranged in the distal region, which are connected via a series of connecting lines for data and/or energy transmission to the connection element arranged at the opposite end. The mesh includes a plurality of conductive lines which are electrically insulated from each other. The connecting lines are included among the conducting lines of the mesh.
摘要:
The invention relates to a confocal microendoscope, in which the diameter of optical fibres at the proximal end (8) of an optical fibre bundle (9) is greater than at the distal end (15). This permits the efficiency of coupling the light of a light source to be increased, without reducing the resolution of the microendoscope. In addition, the proximal ends (8) of the optical fibres (10) are arranged in a grid, for example, by means of a fibre receiving unit (11) that holds the individual optical fibres. A microlens unit (13) can also be provided, said unit allocating a microlens (14) to each optical fibre end.
摘要:
The invention relates to a medical instrument for treating tissue by means of high-frequency current. The inventive instrument comprises at least one electrode that can be impinged upon with a high-frequency current and that is disposed on the distal end of an elongated electrode carrier. At least one electromagnetically active position sensor is disposed in the distal zone of the electrode carrier in the direct vicinity of the at least one electrode in such a manner that it detects the intracorporeal position and/or location of the at least one electrode. The invention further relates to a medical system that comprises such an instrument.
摘要:
The invention relates to a lighting system for endoscopic examinations having a lighting unit that includes at least two LED elements for illuminating an area of examination that is to be observed by means of an endoscope optic. To create a lighting system for endoscopic examinations that ensures a constantly sufficient illumination of the area of examination, it is proposed according to the invention that the direction of radiation of the lighting unit can be displaced between a direction essentially perpendicular to the direction of observation of the endoscope optic upon insertion into the area of examination and a direction essentially in the direction of observation of the endoscope optic after insertion into the area of examination.
摘要:
A light source for endoscopy or microscopy comprises a lamp, a heat sink, the heat sink being thermally connected to the lamp and at least one heat pipe, which is thermally connected to the heat sink and which dissipates the heat that is generated by the lamp and transferred to the heat sink.
摘要:
A light system for medical photodynamic applications comprises an incoherent light source emitting a light with a power and a light guide which has a distal end and an entrance interface. The entrance interface and the light source have a position relative to one another and are able to be positioned relative to one another. The light system further comprises a luminous power meter for measuring a luminous power emitted at the distal end of the light guide, a motorized positioning unit for positioning the entrance interface and the light source relative to one another, and a control unit which controls the positioning unit as a function of the luminous power measured by the luminous power meter.
摘要:
An endoscopic system includes at least one endoscope having an objective which generates an image of an area to be observed, at least one video recorder which records the image generated by the objective, at least one instrument, a position-sensing device which detects a position of the at least one instruments, and an assessment and control unit to which an output signal of the video recorder and the position-sensing device are applied and which displays on a monitor the image and symbols representing the position of the instrument. The position-sensing device includes a sensor which also detects orientation of the instrument, and the assessment and control unit displays symbols which indicate, in addition to the position the orientation of the instrument.
摘要:
A device for testing and/or adjusting a PDD or PDT system and/or for training on such a system comprises an illumination system emitting light which serves at least to stimulate a fluorescent dye and which may be directed to this end onto a tissue zone to be diagnosed and/or therapeutically treated, and an imaging unit which images the light arriving from the stimulated tissue zone. The invention is characterized by the provisions that a target is provided which reflects the light of the illumination system, and that the target comprises at least one light source which emits light within the wavelength range of the fluorescence spectrum of the dye.
摘要:
An endoscope has a video device arranged at the distal end of the endoscope shaft. The video device is connected by means of a transmission system to a supply unit arranged at the proximal end of the endoscope shaft. The video device is provided with a lens for imaging an object field and an illumination unit. The lens and the image recorder are combined into a video unit which is held in such a movable manner at the endoscope shaft that the outer contour of the cross-section of the video unit lays essentially within the outer contour of the cross-section of the distal end of the endoscope shaft when being introduced into the cavity to be examined. After termination of the introduction procedure, the video unit can be moved in relation to the distal end of the endoscopic shaft beyond the outer contour of the cross-section and/or longitudinal section.
摘要:
A method for generating at least one section of a virtual 3D model of a body interior, in particular a hollow organ, uses data that are provided by at least one endoscope introduced into the body interior. The data comprise at least one position and orientation of the endoscope, the at least one position and orientation being as signed at least one distance between the endoscope and the at least one point on a surface of the body interior, and at least one endoscopic image of the surface of the body interior in the region of the at least one point on the surface of the body interior. From the said data relating to a number of different positions and orientations of the endoscope is/are generated the section or sections of the 3D model in superposition with the associated endoscopic image. An appropriate apparatus is also described.