Surgical stapler with timer and feedback display
First Claim
Patent Images
1. A powered surgical stapler comprising:
- a handle;
an endoscopic portion extending distally from the handle and defining a first longitudinal axis;
a drive motor disposed at least partially within the housing;
a firing drive screw disposed in mechanical cooperation with the drive motor, the firing drive screw including a first indicator end and a second indicator end;
a position calculator for determining the linear position of the firing drive screw, the position calculator coupled to at least one linear displacement sensor disposed adjacent to the firing drive screw and configured to detect linear movement of the firing drive screw; and
a speed calculator for determining at least one of a linear speed of the firing drive screw and rotational speed of the drive motor.
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Abstract
A surgical apparatus has a clamp and a stapling mechanism. The clamp has a first jaw and a second jaw to clamp on a body tissue at a desired location for a stapling operation. The stapling mechanism is controlled by a trigger handle or a switch assembly. The surgical apparatus has a controller for providing a delay between clamping and actuating of the firing mechanism of the stapling mechanism. The delay provides for a desired amount of time for tissue compression producing a more uniform staple formation. The surgical apparatus also has an indicator. The indicator provides feedback about the status of the stapling mechanism and also displays a time of tissue compression by the clamp.
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Citations
10 Claims
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1. A powered surgical stapler comprising:
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a handle; an endoscopic portion extending distally from the handle and defining a first longitudinal axis; a drive motor disposed at least partially within the housing; a firing drive screw disposed in mechanical cooperation with the drive motor, the firing drive screw including a first indicator end and a second indicator end; a position calculator for determining the linear position of the firing drive screw, the position calculator coupled to at least one linear displacement sensor disposed adjacent to the firing drive screw and configured to detect linear movement of the firing drive screw; and a speed calculator for determining at least one of a linear speed of the firing drive screw and rotational speed of the drive motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification