Surgical instrument with safety mechanism
First Claim
1. A surgical instrument, comprising:
- a handle assembly including an approximation mechanism and a firing mechanism;
an elongated body portion extending distally from the handle assembly;
a head portion disposed adjacent a distal end of the elongated body portion and including an anvil assembly and shell assembly supporting a plurality of staples, the approximation mechanism being actuable to move the head portion between spaced and approximated positions and the firing mechanism being actuable to eject the plurality of staples from the shell assembly; and
a safety mechanism disposed in mechanical cooperation with the handle assembly, the safety mechanism being movable from a first position preventing actuation of the firing mechanism to a second position permitting actuation of the firing mechanism, wherein the safety mechanism is adapted to move automatically from the second position to the first position in response to movement of the head portion from the approximated position towards the spaced position.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.
1253 Citations
13 Claims
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1. A surgical instrument, comprising:
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a handle assembly including an approximation mechanism and a firing mechanism; an elongated body portion extending distally from the handle assembly; a head portion disposed adjacent a distal end of the elongated body portion and including an anvil assembly and shell assembly supporting a plurality of staples, the approximation mechanism being actuable to move the head portion between spaced and approximated positions and the firing mechanism being actuable to eject the plurality of staples from the shell assembly; and a safety mechanism disposed in mechanical cooperation with the handle assembly, the safety mechanism being movable from a first position preventing actuation of the firing mechanism to a second position permitting actuation of the firing mechanism, wherein the safety mechanism is adapted to move automatically from the second position to the first position in response to movement of the head portion from the approximated position towards the spaced position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification