Endoscope for nasal surgery
AssigneeRichard Wolf GmbH
InventorHelmut Heckele
Life of this patent
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Abstract
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.
Claims5
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.
Dependencies are inferred from the claim text.