Annular support structures
First Claim
1. A rigid support structure, for use in conjunction with a circular endoscopic stapling instrument having a staple cartridge assembly and an anvil assembly, the staple cartridge assembly having at least one annular arrangement of staple slots and staples positioned in the slots, wherein the support structure maintains a resulting anastomotic lumen in an open condition, the support structure comprising:
- a rigid annular ring configured and adapted to substantially overlie the at least one annular arrangement of staples of the staple cartridge assembly, the annular ring including;
an outer annular wall having a diameter;
an inner annular wall spaced a radial distance inward of the outer annular wall and defining a space;
an upper wall interconnecting the outer annular wall and the inner annular wall; and
a lower wall spaced a distance from the upper wall and interconnecting the outer annular wall and the inner annular wall, the outer annular wall, the inner annular wall and the upper and lower walls defining an interior reservoir; and
a wound closure material retained in the reservoir.
2 Assignments
0 Petitions
Accused Products
Abstract
Reinforcing lumen rings are configured and adapted for use in conjunction with a circular endoscopic stapling instrument having a staple cartridge assembly and an anvil assembly. The reinforcing lumen rings maintain anastomotic lumen, e.g. as formed by the circular endoscopic stapling apparatus, in an open condition. The reinforcing lumen rings can include an annular ring having an outer terminal edge and an inner terminal edge, the outer terminal edge having a diameter which is substantially equal to an outer diameter of the staple cartridge assembly and the inner terminal edge having a diameter which is substantially equal to an inner diameter of the staple cartridge assembly.
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Citations
22 Claims
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1. A rigid support structure, for use in conjunction with a circular endoscopic stapling instrument having a staple cartridge assembly and an anvil assembly, the staple cartridge assembly having at least one annular arrangement of staple slots and staples positioned in the slots, wherein the support structure maintains a resulting anastomotic lumen in an open condition, the support structure comprising:
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a rigid annular ring configured and adapted to substantially overlie the at least one annular arrangement of staples of the staple cartridge assembly, the annular ring including;
an outer annular wall having a diameter;
an inner annular wall spaced a radial distance inward of the outer annular wall and defining a space;
an upper wall interconnecting the outer annular wall and the inner annular wall; and
a lower wall spaced a distance from the upper wall and interconnecting the outer annular wall and the inner annular wall, the outer annular wall, the inner annular wall and the upper and lower walls defining an interior reservoir; and
a wound closure material retained in the reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for reinforcing an anastomotic lumen for a hollow body, comprising the steps of:
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cutting said hollow body into a pair of severed sections;
inserting an anvil assembly of a circular stapling apparatus into one of said pair of severed sections of said hollow body such that a shaft of said anvil assembly extends out of a terminal end of said one of said pair of severed sections;
suturing said terminal end of said one of said pair of said severed sections around said shaft of said anvil assembly;
inserting a staple cartridge assembly into an other said pair of severed sections such that the open end of the cartridge assembly faces the open end of the severed sections of the hollow body;
suturing said terminal end of said other of said pair of severed sections;
providing a rigid reinforcing lumen ring between said anvil assembly and said staple cartridge assembly such that when said circular stapling apparatus is fired, surgical staples penetrate said terminal ends of said pair of severed sections and said reinforcing lumen ring;
coupling and approximating said anvil assembly to said staple cartridge assembly; and
firing said circular stapling apparatus. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification