| 摘要 |
Device (1) for treatments of endoscopic resection/ removal of tissues comprising:
- a handpiece (2) adapted to be grasped by an user;
- an outer tubular element (3) extending along a longitudinal axis (X-X) comprising a proximal end, a distal end and a cutting opening arranged at said distal end;
- an inner tubular element (4) adapted to be rotatably accommodated in said outer tubular element (3); said inner tubular element extending along a longitudinal axis (X-X) and comprising a proximal end, a distal end and a cutting tip at its distal end;
- guiding means (5) for rotating and/or oscillating said inner tubular element (4) with respect to said outer tubular element (3); said guiding means comprising an electric motor and power-supply means (20) for said electric motor (19);
the device further has:
a first clutch (7) keyed on the inner tubular element (4) substantially at the proximal end of the inner tubular element;
a second clutch (8) keyed on the distal end of the motor output shaft (17) so that to axially slide on the motor output shaft (17); and
at least one elastic element (18) to push the second clutch (8) to couple with the first clutch (7). |
