초록 ▼

An endoscope for endonasal surgery in particular, comprises a suction and flushing shaft accommodating an optical system and having a suction channel and a flushing channel. A switching valve is accommodated in a handle of the endoscope, for connecting the suction channel and the flushing channel to

An endoscope for endonasal surgery in particular, comprises a suction and flushing shaft accommodating an optical system and having a suction channel and a flushing channel. A switching valve is accommodated in a handle of the endoscope, for connecting the suction channel and the flushing channel to a suction source and to a flushing fluid source, respectively. The switching valve allows the suction channel to be flushed clear of bodily tissue or secretions, for example, during use of the endoscope within a bodily cavity. To this end, the switching valve is such that the suction channel can be cleansed by flushing fluid in an intermediate position of the switching valve, whilst the suction channel is shut off from the suction source.

대표청구항 ▼

An endoscope comprising a suction and flushing shaft provided with a suction and a flushing channel, a handle adapted to be coupled to said shaft and a switching valve accommodated in said handle and having switching positions for connecting the suction channel and the flushing channel to a suction

An endoscope comprising a suction and flushing shaft provided with a suction and a flushing channel, a handle adapted to be coupled to said shaft and a switching valve accommodated in said handle and having switching positions for connecting the suction channel and the flushing channel to a suction sources and to a flushing fluid source, respectively, and for interrupting the connections of said channels to said sources, the switching valve having a further switching position for connecting said suction channel to said flushing fluid source.