Knife/firing rod connection for surgical instrument
First Claim
1. A surgical instrument, comprising:
- a frame;
an elongate portion extending distally from the frame and defining a longitudinal axis;
a firing rod disposed at least partially within the elongate portion and being movable with respect to the elongate portion from a proximal position to a distal position, the firing rod having an aperture;
an end effector arranged at a distal end of the elongate portion, the end effector including a first jaw member and a second jaw member, the jaw members being movable with respect to each other between an open position and an approximation position, the first jaw member including a knife disposed therein; and
a connector disposed at a proximal portion of the knife, the connector including spring element receivable in the aperture of the firing rod;
wherein distal movement of the firing rod causes the connector to mechanically engage the firing rod.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument including a frame, an elongate portion, a firing rod and an end effector is disclosed. The elongate portion extends distally from the frame and defines a longitudinal axis. The firing rod is disposed at least partially with the elongate portion and is proximally and distally translatable with respect to the elongate portion. The end effector includes a knife and is disposed at a distal portion of the elongate portion. Distal movement of the firing rod causes a distal end of the firing rod to link with the knife. Proximal movement of the firing rod moves the linked knife proximally to a first predetermined position. The knife is unlinked from the firing rod when the firing rod has been translated proximally to a second predetermined position.
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Citations
9 Claims
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1. A surgical instrument, comprising:
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a frame; an elongate portion extending distally from the frame and defining a longitudinal axis; a firing rod disposed at least partially within the elongate portion and being movable with respect to the elongate portion from a proximal position to a distal position, the firing rod having an aperture; an end effector arranged at a distal end of the elongate portion, the end effector including a first jaw member and a second jaw member, the jaw members being movable with respect to each other between an open position and an approximation position, the first jaw member including a knife disposed therein; and a connector disposed at a proximal portion of the knife, the connector including spring element receivable in the aperture of the firing rod; wherein distal movement of the firing rod causes the connector to mechanically engage the firing rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification