Surgical staple with integral pledget for tip deflection
First Claim
1. A stapler apparatus for stapling a tissue, the apparatus comprising:
- (a) an anvil having an anvil head, wherein the anvil head defines a staple-forming pocket;
(b) a stapling head assembly operable to drive a staple toward the staple-forming pocket; and
(c) a staple and pledget assembly coupled with the stapling head assembly, wherein the staple and pledget assembly comprises;
(i) a staple having a pair of legs and a crown, wherein the crown has a crown width and a crown length and is configured to apply a first pressure to the tissue along a first plane, wherein the pair of legs are disposed substantially perpendicular to the crown in a first position, wherein the pair of legs is operable to advance against the pocket in the anvil head to form a staple with bent legs, and(ii) a pledget configured to receive the pair of legs of the staple, wherein the pledget is configured to deflect portions of the pair of legs of the staple away from a longitudinal axis of the crown such that the pledget and the staple define a formed staple configured to apply a second pressure to the tissue along a second plane transverse to the first plane, wherein the first and second planes are arranged to form a three-dimensional pressure profile.
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Accused Products
Abstract
A circular stapler apparatus for stapling tissue includes a staple and pledget assembly and a circular staple head operable to drive staples toward an anvil. A staple of the staple and pledget assembly has a pair of legs disposed substantially perpendicular to a crown of the staple in a first position. The pair of legs is operable to advance against a pocket in the anvil to form a staple with bent legs. The staple and pledget assembly includes the staple and a pledget configured to receive the pair of legs of the staple. The pledget comprises a bioabsorbable material. The pledget is configured to advance distal ends of the pair of legs to a position in which the distal ends are laterally offset from a plane in which the crown of the staple is disposed.
1137 Citations
20 Claims
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1. A stapler apparatus for stapling a tissue, the apparatus comprising:
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(a) an anvil having an anvil head, wherein the anvil head defines a staple-forming pocket; (b) a stapling head assembly operable to drive a staple toward the staple-forming pocket; and (c) a staple and pledget assembly coupled with the stapling head assembly, wherein the staple and pledget assembly comprises; (i) a staple having a pair of legs and a crown, wherein the crown has a crown width and a crown length and is configured to apply a first pressure to the tissue along a first plane, wherein the pair of legs are disposed substantially perpendicular to the crown in a first position, wherein the pair of legs is operable to advance against the pocket in the anvil head to form a staple with bent legs, and (ii) a pledget configured to receive the pair of legs of the staple, wherein the pledget is configured to deflect portions of the pair of legs of the staple away from a longitudinal axis of the crown such that the pledget and the staple define a formed staple configured to apply a second pressure to the tissue along a second plane transverse to the first plane, wherein the first and second planes are arranged to form a three-dimensional pressure profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of forming a staple with bent legs using a stapler apparatus, wherein the apparatus includes a staple and pledget assembly and a staple head operable to drive staples toward an anvil head, wherein a staple of the staple and pledget assembly has a pair of legs disposed substantially perpendicular to a crown of the staple in a first position, wherein distal ends of the pair of legs are configured for receipt within a pair of channels defined in opposing end portions of the pledget, wherein the pair of legs is operable to advance against a respective pocket in the anvil head to form the staple with bent legs, the method comprising:
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(a) advancing the distal ends toward the respective pockets in the anvil head; (b) bending the distal ends of the pair of legs via the respective pockets to form first bent portions and second bent portions, the second bent portions including the distal ends; (d) advancing the second bent portions toward an upper surface of the pledget; (e) tilting the pledget in a first angular direction to rotate about a longitudinal axis of the pledget while advancing the second bent portions toward the pledget; and (f) deflecting the first bent portions while tilting the pledget in the first angular direction to create a footprint in which the distal ends are laterally spaced away from a plane passing through the pledget and the crown. - View Dependent Claims (17, 18, 19)
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20. A circular stapler apparatus for stapling a tissue, the apparatus comprising:
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(a) an anvil having an anvil head, wherein the anvil head defines a staple-forming pocket; (b) a stapling head assembly operable to drive a staple toward the staple-forming pocket; and (c) a staple and pledget assembly coupled with the stapling head assembly, wherein the staple and pledget assembly comprises; (i) a staple having a pair of legs and a crown, wherein the crown is configured to apply a first pressure to the tissue along a first plane, wherein the pair of legs are disposed substantially perpendicular to the crown in a first position, wherein the pair of legs is operable to advance against the pocket in the anvil head to form a staple with bent legs, and (ii) a pledget configured to receive the pair of legs of the staple, wherein the pledget is configured to deflect portions of the pair of legs of the staple in opposite directions away from a longitudinal axis of the crown such that the pledget and the staple define a formed staple configured to apply a second pressure to the tissue along a second plane transverse to the first plane, wherein the first and second planes are arranged to form a three-dimensional pressure profile.
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Specification