Support structures and methods of using the same
First Claim
1. A method of disposing a support structure between adjacent intestinal sections, comprising the steps of:
- providing a circular surgical anastomosis device, the circular surgical anastomosis device including;
an anvil assembly having an anvil member and a first shaft; and
a tubular body portion having an annular knife operatively disposed therein and a second shaft disposed radially inward of the annular knife, the first shaft of the anvil assembly being selectively attachable to the second shaft of the tubular body;
inserting the anvil assembly into a first intestinal section;
inserting the tubular body portion into a second intestinal section;
disposing a support structure between the first intestinal section and the second intestinal section, the support structure including a body and having at least one layer of expandable material comprising a first and a second membrane extending radially outward from the body;
approximating the anvil assembly and tubular body portion with one another so that an end portion of the first intestinal section, the support structure, and an end portion of the second intestinal section are disposed between the anvil member and the tubular body portion, the support structure being disposed between the first intestinal section and the second intestinal section;
firing the surgical anastomosis device to sever the portions of the first and second intestinal sections disposed radially inward of the annular knife, and to touch the portions of the first and second intestinal sections radially outward of the annular knife against the structure; and
expanding the at least one layer of expandable material by deploying each of the first and second membranes from a rolled-up condition to an expanded condition.
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Accused Products
Abstract
According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes an anastomosis device having an anvil and a tubular body portion, wherein the anvil is selectively attachable to the tubular body portion by a shaft; and a support structure for deposition between the intestinal sections of tissue. The support structure includes a body defining an aperture therein for receiving the shaft. The body has an outer terminal edge. The support structure includes at least one layer of expandable material disposed at the outer terminal edge of the body.
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Citations
14 Claims
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1. A method of disposing a support structure between adjacent intestinal sections, comprising the steps of:
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providing a circular surgical anastomosis device, the circular surgical anastomosis device including; an anvil assembly having an anvil member and a first shaft; and a tubular body portion having an annular knife operatively disposed therein and a second shaft disposed radially inward of the annular knife, the first shaft of the anvil assembly being selectively attachable to the second shaft of the tubular body; inserting the anvil assembly into a first intestinal section; inserting the tubular body portion into a second intestinal section; disposing a support structure between the first intestinal section and the second intestinal section, the support structure including a body and having at least one layer of expandable material comprising a first and a second membrane extending radially outward from the body; approximating the anvil assembly and tubular body portion with one another so that an end portion of the first intestinal section, the support structure, and an end portion of the second intestinal section are disposed between the anvil member and the tubular body portion, the support structure being disposed between the first intestinal section and the second intestinal section; firing the surgical anastomosis device to sever the portions of the first and second intestinal sections disposed radially inward of the annular knife, and to touch the portions of the first and second intestinal sections radially outward of the annular knife against the structure; and expanding the at least one layer of expandable material by deploying each of the first and second membranes from a rolled-up condition to an expanded condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of disposing a support structure between adjacent intestinal sections, comprising the steps of:
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providing a circular surgical anastomosis device, the circular surgical anastomosis device including; an anvil assembly having an anvil member and a first shaft; and a tubular body portion having an annular knife operatively disposed therein and a second shaft disposed radially inward of the annular knife, the first shaft of the anvil assembly being selectively attachable to the second shaft of the tubular body; inserting the anvil assembly into a first intestinal section; inserting the tubular body portion into a second intestinal section; disposing a support structure between the first intestinal section and the second intestinal section, the support structure including a body having at least one layer of expandable material comprising a first and a second membrane extending radially outward from the body, wherein each membrane includes a first inner layer and a second outer layer; approximating the anvil assembly and tubular body portion with one another so that an end portion of the first intestinal section, the support structure, and an end portion of the second intestinal section are disposed between the anvil member and the tubular body portion, the support structure being disposed between the first intestinal section and the second intestinal section; firing the surgical anastomosis device to sever the portions of the first and second intestinal sections disposed radially inward of the annular knife, and to touch the portions of the first and second intestinal sections radially outward of the annular knife against the structure; and expanding the at least one layer of expandable material, wherein the second outer layer is expanded at a greater rate than the first inner layer. - View Dependent Claims (10, 11, 12, 13)
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14. A method of performing a surgical anastomosis procedure, comprising the steps of:
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providing an anastomosis apparatus having an anvil assembly movably mounted with respect to a tubular body portion; providing a support structure including a body having an outer terminal edge, and an aperture therethrough, the body being compressible, and the support structure having an unhydrated condition wherein the body has a first diameter and a first thickness, and a hydrated condition wherein the body has a second diameter greater than the first diameter and a second thickness greater than the first thickness; disposing the anvil assembly into a first intestinal section; disposing a distal end portion of the surgical stapling apparatus in a second intestinal section; positioning the support structure on a shaft of the anvil assembly such that the support structure is pre-mounted onto the shaft of the anvil assembly prior to positioning the anvil assembly in the first intestinal section; hydrating the support structure to expand the body from the first diameter and the first thickness to a second diameter and a second thickness, the body being constructed from a first part of a two-part wound treatment material, and fluid applied thereto being a second part of the two-part wound treatment material; approximating the anvil assembly and the tubular body portion subsequent to hydrating the support structure to capture the body of the support structure between the first intestinal section and the second intestinal section and to compress the body portion therebetween so that the body extends radially beyond the anvil member and the tubular body portion to seal the perimeter of the anastomosis site; and firing the anastomosis apparatus to join the first intestinal section, support structure, and second intestinal section.
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Specification