Endoscope apparatus
First Claim
1. An endoscope apparatus for observing an inside of a cavity comprising:
- an inserting portion insertable in a cavity under inspection and having distal and proximal ends;
an operating means having one end connected to said proximal end of said inserting portion;
a forceps channel formed within the inserting portion to extend from said distal end to said proximal end and having a forceps opening formed in said operating means;
a first conduit means arranged within said inserting portion;
a suction source means for connection to one of said first conduit means and said forceps channel;
a second conduit means provided in said operating means and having one end connected to said forceps channel at a point near said forceps opening and another end connected to said suction source means;
a switching means arranged in said second conduit means for selectively alternately connecting one of said forceps channel and said first conduit means to said suction source means, regardless of whether a forceps is inserted into said forceps channel.
1 Assignment
0 Petitions
Accused Products
Abstract
In an endoscope apparatus, an ultrasonic vibrating element is rotatably arranged at a distal end of a flexible inserting portion, this ultrasonic vibrating element is rotated by a motor provided in a subsidiary operating portion via a flexible cable extended through the inserting portion, the distal end portion of the inserting portion is bent by operating a handle provided on a primary operating portion, which is arranged at the proximal side of the subsidiary operating portion; a forceps channel is extended through the inserting portion and an opening of the forceps channel is formed in the subsidiary portion. According to such structure, the forceps can be inserted in the forceps channel easily and existing forceps having a standard length can be used as they are.
87 Citations
6 Claims
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1. An endoscope apparatus for observing an inside of a cavity comprising:
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an inserting portion insertable in a cavity under inspection and having distal and proximal ends; an operating means having one end connected to said proximal end of said inserting portion; a forceps channel formed within the inserting portion to extend from said distal end to said proximal end and having a forceps opening formed in said operating means; a first conduit means arranged within said inserting portion; a suction source means for connection to one of said first conduit means and said forceps channel; a second conduit means provided in said operating means and having one end connected to said forceps channel at a point near said forceps opening and another end connected to said suction source means; a switching means arranged in said second conduit means for selectively alternately connecting one of said forceps channel and said first conduit means to said suction source means, regardless of whether a forceps is inserted into said forceps channel. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification