Endoscope for inspection of an observation cavity
AssigneeStorz Endoskop GmbH
InventorsHarald Haan, Beat Krattiger, Manfred Kuster, Pavel Novak, Jörg Reling
Life of this patent
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Abstract
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.
Claims19
An endoscope for inspection of an observation cavity, comprising:
- a shaft, said shaft having an inner shaft and an outer shaft, said outer shaft surrounding said inner shaft at a distance;
- an optical system arranged in said inner shaft;
- said shaft being configured in the region of its distal end in such a way that it is substantially impermeable to electromagnetic radiation in the infrared spectral range, wherein said outer shaft at least partially has, in the region of its distal end, a coating that reflects infrared radiation;
- and
- wherein a lumen is constituted between said inner shaft and said outer shaft as a delivery conduit for a cooling medium from the proximal end to the distal end of said shaft.
An endoscope for inspection of an observation cavity, comprising:
- a shaft, said shaft having an inner shaft and an outer shaft, said outer shaft surrounding said inner shaft at a distance;
- an optical system arranged in said inner shaft;
- said shaft being configured in the region of its distal end in such a way that it is substantially impermeable to electromagnetic radiation in the infrared spectral range, wherein said outer shaft at least partially has, in the region of its distal end, a coating that reflects infrared radiation;
- wherein a lumen is constituted between said inner shaft and said outer shaft as a delivery conduit for a cooling medium from the proximal end to the distal end of said shaft;
- and
- wherein there is arranged at the distal end of said shaft, on the light-entry side, an optical bandpass filter, preferably a thin-film bandpass filter, that is transparent in the visible spectral range and that at least partially absorbs and/or reflects radiation in the infrared spectral range.
Dependencies are inferred from the claim text.