Knife Lockout Mechanisms For Surgical Instrument
First Claim
1. A cartridge assembly for use with a surgical stapling instrument, the cartridge assembly comprising:
- a channel including a protrusion thereon;
a cover configured for mechanical engagement with the channel, the cover including a blocking member and including a surface defining a plane, at least a portion of the blocking member being configured to move away from the plane upon contact with the protrusion;
a staple cartridge configured for mechanical engagement with the cover;
a knife configured for translation with respect to the cover; and
wherein the blocking member is configured to substantially prevent distal translation of the knife after the knife has been translated proximally past a predetermined position.
2 Assignments
0 Petitions
Accused Products
Abstract
A cartridge assembly for use with a surgical stapling instrument is disclosed. The cartridge assembly includes a channel, a cover, a staple cartridge and a knife. The channel includes a protrusion thereon. The cover is configured for mechanical engagement with the channel and includes a blocking member and a surface defining a plane. At least a portion of the blocking member is configured to move away from the plane upon contact with the protrusion. The staple cartridge is configured for mechanical engagement with the cover. The blocking member is configured to substantially prevent distal translation of the knife after the knife has been translated proximally past a predetermined position.
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Citations
11 Claims
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1. A cartridge assembly for use with a surgical stapling instrument, the cartridge assembly comprising:
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a channel including a protrusion thereon; a cover configured for mechanical engagement with the channel, the cover including a blocking member and including a surface defining a plane, at least a portion of the blocking member being configured to move away from the plane upon contact with the protrusion; a staple cartridge configured for mechanical engagement with the cover; a knife configured for translation with respect to the cover; and wherein the blocking member is configured to substantially prevent distal translation of the knife after the knife has been translated proximally past a predetermined position. - View Dependent Claims (2, 3, 4)
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5. A surgical stapling instrument, comprising:
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a frame; an elongate portion extending distally from the frame and defining a longitudinal axis; a cartridge assembly disposed in mechanical cooperation with the elongate portion, the cartridge assembly including; a surface defining a plane; a protrusion; a blocking member, at least a portion of the blocking member being configured to move away from the plane upon engagement with the protrusion; a knife configured for translation with respect to the surface; and wherein the blocking member is configured to substantially prevent distal translation of the knife after the knife has been translated proximally past a predetermined position. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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Specification