Surgical instrument with safety mechanism
First Claim
1. A surgical instrument, comprising:
- a handle assembly including a stationary handle, an approximation mechanism, and a firing trigger;
a safety mechanism disposed in mechanical cooperation with the handle assembly and including a lever, the lever being 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, the lever being biased toward its first position;
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 a first jaw member and a second jaw member, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions; and
the approximation mechanism moving the first jaw member in relation to the second jaw member from a spaced position to an approximated position, wherein movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever to move from the second position to the first 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.
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Citations
16 Claims
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1. A surgical instrument, comprising:
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a handle assembly including a stationary handle, an approximation mechanism, and a firing trigger; a safety mechanism disposed in mechanical cooperation with the handle assembly and including a lever, the lever being 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, the lever being biased toward its first position; 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 a first jaw member and a second jaw member, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions; and the approximation mechanism moving the first jaw member in relation to the second jaw member from a spaced position to an approximated position, wherein movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever to move from the second position to the first position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical instrument, comprising:
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a handle assembly including a stationary handle, an approximation mechanism, and a firing trigger; a safety mechanism disposed in mechanical cooperation with the handle assembly and including a lever, the lever being 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; 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 a first jaw member and a second jaw member, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions; and the approximation mechanism moving the first jaw member in relation to the second jaw member from a spaced position to an approximated position, wherein movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever to move from the second position to the first position, wherein the safety mechanism includes a latch disposed on the lever and a latch retainer disposed on the stationary handle, wherein the latch and latch retainer are configured to releasably maintain the lever in its second position. - View Dependent Claims (9, 10, 11)
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12. A surgical instrument, comprising:
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a handle assembly including a stationary handle, an approximation mechanism, and a firing trigger for firing a plurality of fasteners; a safety mechanism disposed in mechanical cooperation with the handle assembly and movable between a first position to prevent firing of the fasteners and a second position to enable firing of the fasteners, the safety mechanism being retained in the second position, the safety mechanism including a lever retained by a latch retainer in the second position; 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 a first jaw member and a second jaw member, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions; and the approximation mechanism moving the first jaw member in relation to the second jaw member from a spaced position to an approximated position, wherein movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position prior to firing of the fasteners causes the safety mechanism to be released to move from the second position to the first position. - View Dependent Claims (13, 14, 15, 16)
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Specification