초록 ▼

An endoscope for nasal surgery comprises an outer shaft having a handle incorporating a switching valve for connecting a suction and flushing channel of the outer shaft to, and disconnecting it from, a source of negative pressure and a source of flushing fluid. A working insert for insertion into th

An endoscope for nasal surgery comprises an outer shaft having a handle incorporating a switching valve for connecting a suction and flushing channel of the outer shaft to, and disconnecting it from, a source of negative pressure and a source of flushing fluid. A working insert for insertion into the outer shaft, comprises a shaft for receiving an optical system proximally connected to the working insert, a shaft having a proximally positioned connector for insertion therethrough of an auxiliary instrument, for example a pair of forceps, and two guides for wires or rods which are movable by means of handles pivoted to the proximal end part of the working insert to displace a lever on the distal end of the working insert angularly to adjust the distal end of the auxiliary instrument.

대표청구항 ▼

An endoscope for nasal surgery, comprising: an outer endoscope shaft incorporating a suction and flushing shaft; a handle connected to the outer shaft, in which handle is provided a switching valve for connecting the suction and flushing shaft to, and disconnecting it from, a negative pressure sourc

An endoscope for nasal surgery, comprising: an outer endoscope shaft incorporating a suction and flushing shaft; a handle connected to the outer shaft, in which handle is provided a switching valve for connecting the suction and flushing shaft to, and disconnecting it from, a negative pressure source and a flushing fluid source; a working insert for the outer shaft couplable thereto proximally of the handle and having a shaft for receiving an auxiliary instrument inserted thereinto by way of an angled connector on said insert, and a shaft for receiving an optical system connectable proximally to said insert; a lever on said insert for pivotally displacing a distal end of the auxiliary instrument when said instrument is received in said instrument receiving shaft; an angularly displaceable operating handle for said lever, on either side of said insert; and elongate means connecting said handles to said lever for angular displacement thereof by angular displacement of said handles.