Jaw members and methods of manufacture
AssigneeCovidien LP
InventorsVenkata Ramana Mohan Pinjala, Rajasekhar Nukala
Life of this patent
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Abstract
A jaw member for use on a surgical stapling instrument includes a cartridge assembly and a cartridge housing each having an arcuate configuration. The cartridge assembly includes a surface configured to engage tissue and a plurality of rows of fastener retaining slots extending along a length of the cartridge assembly. The cartridge housing defines a channel configured for receipt of the cartridge assembly. The cartridge housing includes a base portion and a plurality of tabs. The base portion has a concave inner edge and a convex outer edge. The tabs extend from the concave inner edge and the convex outer edge. The tabs are spaced from one another along a length of the cartridge housing.
Claims20
A jaw member for use on a surgical stapling instrument comprising:
- a cartridge assembly having an arcuate configuration, the cartridge assembly including:
- a surface configured to engage tissue;
- a plurality of rows of fastener retaining slots extending along a length of the cartridge assembly;
- and
- a knife channel disposed between adjacent rows of the plurality of rows of fastener retaining slots;
- and
- a cartridge housing having an arcuate configuration and defining a channel therein configured for receipt of the cartridge assembly, the cartridge housing including:
- a base portion having a concave inner edge and a convex outer edge;
- and
- a plurality of tabs extending from the concave inner edge and the convex outer edge, wherein each tab of the plurality of tabs is spaced from one another along a length of the cartridge housing.
A jaw member for use with a surgical stapling instrument comprising:
- a cartridge assembly having an arcuate configuration, the cartridge assembly including:
- a surface configured to engage tissue;
- a plurality of rows of fastener retaining slots extending along a length of the cartridge assembly;
- and
- a knife channel disposed between adjacent rows of the plurality of rows of fastener retaining slots;
- and
- a cartridge housing having an arcuate configuration and defining a channel therein configured for receipt of the cartridge assembly, the cartridge housing including:
- a base portion having a concave inner edge and a convex outer edge;
- a first wall extending from the concave inner edge;
- and
- a second wall extending from the convex outer edge, the first and second walls each defining a plurality of notches therein, wherein each notch of the plurality of notches is spaced from one another along a length of the cartridge housing.
An end effector for use with a surgical stapling instrument comprising:
- a first jaw member having an anvil assembly;
- and
- a second jaw member, at least one of the first jaw member and the second jaw member being movable relative to the other between a spaced position and an approximated position to engage and staple tissue therebetween, the second jaw member including:
- a cartridge assembly having an arcuate configuration, the cartridge assembly including:
- a surface configured to engage tissue;
- a plurality of rows of fastener retaining slots extending along a length of the cartridge assembly;
- and
- a knife channel disposed between adjacent rows of the plurality of rows of fastener retaining slots;
- and
- a cartridge housing having an arcuate configuration and defining a channel therein configured for receipt of the cartridge assembly, the cartridge housing including:
- a base portion having a concave inner edge and a convex outer edge;
- a first wall extending from the concave inner edge;
- and
- a second wall extending from the convex outer edge, the first and second walls each defining a plurality of notches therein, wherein each slit of the plurality of notches is spaced from one another along a length of the cartridge housing.
A method of manufacturing a jaw member of a surgical stapling instrument, the method comprising:
- providing a piece of sheet metal having an elongated configuration;
- forming a plurality of notches in the piece of sheet metal;
- forming at least one hole through the piece of sheet metal;
- deforming the piece of sheet metal into an arcuate shape;
- deforming the piece of sheet metal to form a base portion, a first wall, and a second wall, the first and second walls having the plurality of slits formed therein and extending from the base portion, wherein the base portion, the first wall, and the second wall together define a channel along a length of the piece of sheet metal;
- and
- inserting a cartridge assembly into the channel of the piece of sheet metal.
Dependencies are inferred from the claim text.