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US 10,881,405 B2Granted
Surgical stapling loading unit with stroke counter and lockout
AssigneeCovidien LP
InventorAvvln Srinivasa Murthy Aravalli
Life of this patent
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Abstract
A surgical loading unit includes a drive and a rotatable counter that is adapted for rotational movement. The rotatable counter has visual indicators for providing visual indicia corresponding to a number of firing strokes completed by the drive.
Claims21
A surgical loading unit comprising:
- an outer frame defining a longitudinal axis, the outer frame having a proximal portion and a distal portion;
- an end effector supported on the distal portion of the outer frame;
- a drive at least partially disposed within the outer frame and operatively coupled to the end effector, the drive adapted for longitudinal movement during firing strokes and return strokes to actuate the end effector;
- and
- a counter supported on the outer frame, the counter having visual indicators to provide visual indicia that correspond to a number of the firing strokes completed by the drive;
- wherein the counter is movable in response to the longitudinal movement of the drive to identify a number of the firing strokes of the drive member.
3 more elements
A surgical stapling device comprising:
- an elongated outer frame defining a longitudinal axis, the elongated outer frame having a proximal portion and a distal portion;
- an end effector supported on the distal portion of the outer frame;
- a drive at least partially disposed within the outer frame and operatively coupled to the end effector, the drive adapted for longitudinal movement to actuate the end effector;
- a counter supported on the elongated outer frame, the counter having visual indicators to provide visual indicia that correspond to a number of firing strokes completed by the drive;
- wherein the counter is movable in response to the longitudinal movement of the drive to identify a number of the firing strokes of the drive member.
2 more elements
Dependencies are inferred from the claim text.