Treatment tool with jaws
AssigneeOlympus Corporation
InventorSeigo Kase
Life of this patent
Estimating the term…
Abstract
The disclosed technology is directed to a treatment tool comprises a shaft to extend from a proximal-end side toward a distal-end side. A first jaw is disposed on the distal-end portion of the shaft. A second jaw having a gripping surface that faces the first jaw, an opposed back surface of the gripping surface and a first engaging portion. The second jaw is angularly movable about a turn axis of the first engaging portion so as to be opened or closed with respect to the first jaw. A movable shaft having a recess defined in a distal-end and is movable along the longitudinal axis with respect to the shaft for angularly moving the second jaw about the turn axis with respect to the first jaw. A cover having a protrusion that protrudes toward a proximal-end side of the second jaw and a second engaging portion formed on the protrusion.
Claims9
A treatment tool comprising:
- an elongated shaft configured to extend from a proximal-end side toward a distal-end side along a longitudinal axis;
- a first jaw disposed on the distal-end portion of the shaft;
- a second jaw having a gripping surface that faces the first jaw, an opposed back surface of the gripping surface and a first engaging portion, the first engaging portion including a first hole defined in the second jaw, the second jaw being angularly movable about a turn axis of the first engaging portion so as to be opened or closed with respect to the first jaw;
- a movable shaft having a recess defined in a distal-end thereof and being movable along the longitudinal axis with respect to the shaft for angularly moving the second jaw about the turn axis with respect to the first jaw;
- a cover having a protrusion that protrudes toward a proximal-end side of the second jaw and a second engaging portion formed on the protrusion, the second engaging portion including a second hole defined in the protrusion, the cover disposed on the back surface of the second jaw wherein
- the protrusion is disposed in the recess, and the cover and the movable shaft are connected to one another by the second engaging portion,
- the second jaw and the movable shaft are connected to one another by the first engaging portion, and
- an area of the second hole is larger than an area of the first hole.
Dependencies are inferred from the claim text.