Surgical fastener applying apparatus
First Claim
1. A staple cartridge assembly receivable in a distal end portion of a cartridge receiving half-section of a surgical stapler, the staple cartridge assembly comprising:
- a safety lockout pivotably disposed along an upper surface of the cartridge assembly and movable from an unblocked 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 with the cartridge receiving half section; and
a loading and lockout mechanism configured and adapted to facilitate loading of the cartridge assembly to the cartridge receiving half-section and to prevent firing of the surgical fastener applying apparatus until the cartridge assembly is properly assembled with cartridge receiving half-section, the loading and lockout mechanism including;
a rocker pivotably mounted to the cartridge receiving half-section, the rocker having a locked-out position which prevents firing of the surgical fastener applying apparatus and a firing position which permits firing of the surgical fastener applying apparatus, defining a downwardly extending blocking surface, the rocker, when in the locked-out position, engages a cam bar and prevents displacement of the cam bar in a distal direction and, when in the firing position, disengages the cam bar and allows the cam bar to be displaced distally.
2 Assignments
0 Petitions
Accused Products
Abstract
An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally. In addition, each of the presently disclosed cartridge and anvil half-sections of the fastener applying apparatus includes a clamping lever, which clamping levers are configured and adapted to enable the applying apparatus to be opened by either one of the cartridge half-section and the anvil half-section.
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Citations
10 Claims
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1. A staple cartridge assembly receivable in a distal end portion of a cartridge receiving half-section of a surgical stapler, the staple cartridge assembly comprising:
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a safety lockout pivotably disposed along an upper surface of the cartridge assembly and movable from an unblocked 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 with the cartridge receiving half section; and a loading and lockout mechanism configured and adapted to facilitate loading of the cartridge assembly to the cartridge receiving half-section and to prevent firing of the surgical fastener applying apparatus until the cartridge assembly is properly assembled with cartridge receiving half-section, the loading and lockout mechanism including; a rocker pivotably mounted to the cartridge receiving half-section, the rocker having a locked-out position which prevents firing of the surgical fastener applying apparatus and a firing position which permits firing of the surgical fastener applying apparatus, defining a downwardly extending blocking surface, the rocker, when in the locked-out position, engages a cam bar and prevents displacement of the cam bar in a distal direction and, when in the firing position, disengages the cam bar and allows the cam bar to be displaced distally. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification