Buttress and surgical stapling apparatus

• US 8,496,683 B2
• Filed: 10/17/2011
• Issued: 07/30/2013
• Est. Priority Date: 06/27/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Prommersberger, Megan, Nentwick, Brian, Gravagna, Philippe, Bayon, Yves, Dassonville, Dagmar, Meneghin, Alfredo, Lecuivre, Julie
• Primary Examiner(s): Erezo, Darwin
• Assistant Examiner(s): LAUER, CHRISTINA C
• Application Number:
  US13/274,521
• Publication Number:
  US 20120031950A1
• Time in Patent Office: 652 Days
• Field of Search: 227/175.1, 227/176.1, 227/179.1, 227/180.1, 227/178.1, 227/19, 606139-143, 606/151, 606/75, 606/219, 606/215, 606/232
• US Class Current: 606/215
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00849 with respect to tissue, e.g. hollow organs
• CPC Class Codes: A61B 2017/00889 antimicrobial, disinfectant
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: B29C 39/123 Making multilayered articles
• CPC Class Codes: B29C 39/22 Component parts, details or accessories; Auxiliary operations
• CPC Class Codes: B29K 2105/206 Meshes, lattices or nets
• CPC Class Codes: B29L 2031/7546 Surgical equipment

Abstract

Multilayer structures including a porous layer and a non-porous layer are useful as buttresses when associated with a surgical stapling apparatus.

Claims

1. A surgical stapling apparatus comprising:

a staple cartridge containing at least one staple;

an anvil having a staple forming surface; and

a buttress positioned adjacent the anvil or the cartridge, the buttress comprising a non-porous layer, a porous layer, a first reinforcement member encapsulated within the non-porous layer and a second reinforcement layer associated with the porous layer, wherein the first reinforcement member comprises a plurality of reinforcement members oriented in a first direction and the second reinforcement layer comprises a plurality of reinforcement members oriented in a second direction that is different from the first direction.

2. The surgical stapling apparatus of claim 1, wherein the non-porous layer comprises at least one material selected from the group consisting of collagen, gelatin, fibrin, fibrinogen, elastin, keratin, albumin, hydroxyethyl cellulose, cellulose, oxidized cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, carboxymethylcellulose, chitan, chitosan, alginate, poly(lactic acid), poly(glycolic acid), poly(hydroxybutyrate), poly (phosphazine), polyesters, polyethylene glycols, polyalkyleneoxides, polyacrylamides, polyhydroxyethylmethylacrylate, polyvinylpyrrolidone, polyvinyl alcohols, poly(caprolactone), poly(dioxanone), polyacrylic acid, polyacetate, polycaprolactone, polypropylene, aliphatic polyesters, glycerols, poly(amino acids), copoly(ether-esters), polyalkylene oxalates, polyamides, poly(iminocarbonates), polyalkylene oxalates, polyoxaesters, polyorthoesters, polyphosphazenes and combinations thereof.

3. The surgical stapling apparatus of claim 1, wherein the porous layer comprises at least one material selected from the group consisting of poly(lactic acid), poly(glycolic acid), poly(hydroxybutyrate), poly(caprolactone), poly(dioxanone), polyalkyleneoxides, copoly(ether-esters), collagen, gelatin, thrombin, fibrin, fibrinogen, fibronectin, elastin, albumin, hemoglobin, ovalbumin, polysaccharides, hyaluronic acid, chondroitin sulfate, hydroxyethyl starch, hydroxyethyl cellulose, cellulose, oxidized cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, carboxymethyl cellulose, chitan, chitosan, agarose, maltose, maltodextrin, alginate, clotting factors, methacrylate, polyurethanes, cyanoacrylates, platelet agonists, vasoconstrictors, alum, calcium, RGD peptides, proteins, protamine sulfate, epsilon amino caproic acid, ferric sulfate, ferric subsulfates, ferric chloride, zinc, zinc chloride, aluminum chloride, aluminum sulfates, aluminum acetates, permanganates, tannins, bone wax, polyethylene glycols, fucans and combinations thereof.

4. The surgical stapling apparatus of claim 1, wherein the first reinforcement member, the second reinforcement layer, or both, comprise chopped fibers.

5. The surgical stapling apparatus of claim 1, wherein the first reinforcement member, the second reinforcement layer, or both, comprise sutures.

6. The surgical stapling apparatus of claim 1, wherein the second reinforcement layer is encapsulated within the porous layer.

7. A surgical stapling apparatus comprising:

a staple cartridge containing at least one staple;

an anvil having a staple forming surface; and

a buttress positioned adjacent the anvil or the cartridge, the buttress comprising a fiber-reinforced foam composite and a non-porous layer disposed within the fiber-reinforced foam composite.

8. The surgical stapling apparatus of claim 7, wherein the non-porous layer comprises at least one material selected from the group consisting of collagen, gelatin, fibrin, fibrinogen, elastin, keratin, albumin, hydroxyethyl cellulose, cellulose, oxidized cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, carboxymethylcellulose, chitan, chitosan, alginate, poly(lactic acid), poly(glycolic acid), poly(hydroxybutyrate), poly (phosphazine), polyesters, polyethylene glycols, polyalkyleneoxides, polyacrylamides, polyhydroxyethylmethylacrylate, polyvinylpyrrolidone, polyvinyl alcohols, poly(caprolactone), poly(dioxanone), polyacrylic acid, polyacetate, polycaprolactone, polypropylene, aliphatic polyesters, glycerols, poly(amino acids), copoly(ether-esters), polyalkylene oxalates, polyamides, poly(iminocarbonates), polyalkylene oxalates, polyoxaesters, polyorthoesters, polyphosphazenes and combinations thereof.

9. The surgical stapling apparatus of claim 7, wherein the foam of the fiber-reinforced foam comprises at least one material selected from the group consisting of poly(lactic acid), poly(glycolic acid), poly(hydroxybutyrate), poly(caprolactone), poly(dioxanone), polyalkyleneoxides, copoly(ether-esters), collagen, gelatin, thrombin, fibrin, fibrinogen, fibronectin, elastin, albumin, hemoglobin, ovalbumin, polysaccharides, hyaluronic acid, chondroitin sulfate, hydroxyethyl starch, hydroxyethyl cellulose, cellulose, oxidized cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, carboxymethyl cellulose, chitan, chitosan, agarose, maltose, maltodextrin, alginate, clotting factors, methacrylate, polyurethanes, cyanoacrylates, platelet agonists, vasoconstrictors, alum, calcium, RGD peptides, proteins, protamine sulfate, epsilon amino caproic acid, ferric sulfate, ferric subsulfates, ferric chloride, zinc, zinc chloride, aluminum chloride, aluminum sulfates, aluminum acetates, permanganates, tannins, bone wax, polyethylene glycols, fucans and combinations thereof.

10. The surgical stapling apparatus of claim 7, wherein the fibers of the fiber-reinforced foam comprise a mesh.

11. The surgical stapling apparatus of claim 7, wherein the fibers of the fiber-reinforced foam comprise a suture.

12. The surgical stapling apparatus of claim 7, wherein the fibers of the fiber-reinforced foam are encapsulated within the non-porous layer.

13. A method of sealing a wound comprising:

enclosing tissue between a cartridge and an anvil of a surgical stapling apparatus, one of the cartridge or anvil having a buttress positioned adjacent thereto, wherein the buttress comprises a fiber-reinforced foam composite and a non-porous layer disposed within the fiber-reinforced foam composite; and

ejecting staples from said cartridge to secure the buttress to the tissue.

14. The method of claim 13, wherein the non-porous layer comprises at least one material selected from the group consisting of collagen, gelatin, fibrin, fibrinogen, elastin, keratin, albumin, hydroxyethyl cellulose, cellulose, oxidized cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, carboxymethylcellulose, chitan, chitosan, alginate, poly(lactic acid), poly(glycolic acid), poly(hydroxybutyrate), poly (phosphazine), polyesters, polyethylene glycols, polyalkyleneoxides, polyacrylamides, polyhydroxyethylmethylacrylate, polyvinylpyrrolidone, polyvinyl alcohols, poly(caprolactone), poly(dioxanone), polyacrylic acid, polyacetate, polycaprolactone, polypropylene, aliphatic polyesters, glycerols, poly(amino acids), copoly(ether-esters), polyalkylene oxalates, polyamides, poly(iminocarbonates), polyalkylene oxalates, polyoxaesters, polyorthoesters, polyphosphazenes and combinations thereof.

15. The method of claim 13, wherein the foam of the fiber-reinforced foam comprises at least one material selected from the group consisting of poly(lactic acid), poly(glycolic acid), poly(hydroxybutyrate), poly(caprolactone), poly(dioxanone), polyalkyleneoxides, copoly(ether-esters), collagen, gelatin, thrombin, fibrin, fibrinogen, fibronectin, elastin, albumin, hemoglobin, ovalbumin, polysaccharides, hyaluronic acid, chondroitin sulfate, hydroxyethyl starch, hydroxyethyl cellulose, cellulose, oxidized cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, carboxymethyl cellulose, chitan, chitosan, agarose, maltose, maltodextrin, alginate, clotting factors, methacrylate, polyurethanes, cyanoacrylates, platelet agonists, vasoconstrictors, alum, calcium, RGD peptides, proteins, protamine sulfate, epsilon amino caproic acid, ferric sulfate, ferric subsulfates, ferric chloride, zinc, zinc chloride, aluminum chloride, aluminum sulfates, aluminum acetates, permanganates, tannins, bone wax, polyethylene glycols, fucans and combinations thereof.

16. The method of claim 13, wherein the fibers of the fiber-reinforced foam comprise a mesh.

17. The method of claim 13, wherein the fibers of the fiber-reinforced foam comprise a suture.

18. The method of claim 13, wherein the fibers of the fiber-reinforced foam are encapsulated within the non-porous layer.