Surgical fastener applying apparatus
First Claim
1. A method of blocking a firing of a surgical fastener applying apparatus, the method comprising the steps of:
- providing a surgical fastener applying apparatus, including;
a cartridge half-section and an anvil half-section, the cartridge half-section and anvil half-section being relatively movable from an unclamped position to a clamped position;
a loading unit receivable in the cartridge half-section and having a plurality of staples loaded therein and a plurality of staple pusher members;
the cartridge half-section having;
a frame; and
a cam bar being longitudinally movable through the loading unit, wherein the cam bar includes a pair of camming surface extensions for interacting with the staple pusher members to fire the staples from the loading unit; and
a lockout mechanism arranged to block advancement of the cam bar when the lockout mechanism is in a locked-out position, wherein the lockout mechanism includes a rocker pivotably mounted to the cartridge half-section, the rocker including a blocking surface and being biased toward a locked-out position, wherein the blocking surface of the rocker is engageable with the cam bar to prevent a longitudinal movement of the cam bar and the camming surface extensions thereof;
loading the loading unit in the surgical fastener applying apparatus;
subsequently clamping the cartridge and anvil half sections, wherein the rocker of the lockout mechanism is moved from the locked-out position preventing advancement of the cam bar to an unlocked position allowing an initial advancement of the cam bar.
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Accused Products
Abstract
The present disclosure relates to surgical fastener applying apparatus for sequentially applying a plurality of surgical fasteners to body tissue. The surgical fastener applying apparatus includes a replaceable cartridge assembly receivable in a distal end portion of a cartridge receiving half-section, the cartridge assembly including a safety lockout pivotably disposed along the upper surface of the cartridge assembly and movable from an unlocked orientation permitting assembly of an anvil half-section to the cartridge receiving half-section, to a locked orientation preventing assembly of the anvil half-section to the cartridge receiving-half section.
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Citations
9 Claims
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1. A method of blocking a firing of a surgical fastener applying apparatus, the method comprising the steps of:
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providing a surgical fastener applying apparatus, including; a cartridge half-section and an anvil half-section, the cartridge half-section and anvil half-section being relatively movable from an unclamped position to a clamped position; a loading unit receivable in the cartridge half-section and having a plurality of staples loaded therein and a plurality of staple pusher members; the cartridge half-section having; a frame; and a cam bar being longitudinally movable through the loading unit, wherein the cam bar includes a pair of camming surface extensions for interacting with the staple pusher members to fire the staples from the loading unit; and a lockout mechanism arranged to block advancement of the cam bar when the lockout mechanism is in a locked-out position, wherein the lockout mechanism includes a rocker pivotably mounted to the cartridge half-section, the rocker including a blocking surface and being biased toward a locked-out position, wherein the blocking surface of the rocker is engageable with the cam bar to prevent a longitudinal movement of the cam bar and the camming surface extensions thereof; loading the loading unit in the surgical fastener applying apparatus; subsequently clamping the cartridge and anvil half sections, wherein the rocker of the lockout mechanism is moved from the locked-out position preventing advancement of the cam bar to an unlocked position allowing an initial advancement of the cam bar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification