BUTTRESS AND SURGICAL STAPLING APPARATUS

• US 20140158742A1
• Filed: 02/12/2014
• Published: 06/12/2014
• Est. Priority Date: 06/27/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Stopek (ne Prommersberger), Megan, Nentwick, Brian, Gravagna, Philippe, Bayon, Yves, Dassonville, Dagmar, Meneghin, Alfredo, Lecuivre, Julie
• Granted Patent: US 9,636,850 B2
• Time in Patent Office: Days
• US Class Current: 227/175.1
• 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. (canceled)

2. A surgical stapling apparatus comprising:

a staple cartridge containing at least one staple;

an anvil having a staple forming surface; and

a buttress positioned on the staple cartridge or the anvil, the buttress having at least one bioactive agent.

3. The surgical stapling apparatus according to claim 2, wherein the buttress has more than one layer.

4. The surgical stapling apparatus according to claim 3, wherein the buttress has a porous layer and a non-porous layer.

5. The surgical stapling apparatus according to claim 3, wherein the buttress has a reinforcement member.

6. The surgical stapling apparatus according to claim 5, wherein the reinforcement member is a mesh.

7. The surgical stapling apparatus according to claim 5, wherein the reinforcement member is selected from the group consisting of monofilaments, multifilament braids, chopped fibers, and combinations thereof.

8. The surgical stapling apparatus according to claim 5, wherein the reinforcement member is oriented in a first direction.

9. The surgical stapling apparatus according to claim 2, wherein the bioactive agent is selected from the group consisting of anti-adhesives, antimicrobials, analgesics, antipyretics, anesthetics, antiepileptics, antihistamines, anti-inflammatories, cardiovascular drugs, diagnostic agents, sympathomimetics, cholinomimetics, antimuscarinics, antispasmodics, hormones, growth factors, muscle relaxants, adrenergic neuron blockers, antineoplastics, immunogenic agents, immunosuppressants, gastrointestinal drugs, diuretics, steroids, lipids, lipopolysaccharides, polysaccharides, enzymes, and combinations thereof.

10. The surgical stapling apparatus according to claim 2, wherein the bioactive agent is selected from the group consisting of anti-tumor agents and tumor suppressors.

11. The surgical stapling apparatus according to claim 2, wherein the buttress includes material derived from animal collagen.

12. The surgical stapling apparatus according to claim 2, wherein the buttress includes a gelled collagen solution applied in a layer and dried.

13. The surgical stapling apparatus according to claim 2, wherein the buttress includes a diluted solution of collagen that is oxidized, poured in a layer, and dried.

14. The surgical stapling apparatus according to claim 2, wherein the buttress includes a layer having at least one pocket formed therein.

15. The surgical stapling apparatus according to claim 14, wherein the at least one pocket is machined into the layer.

16. A method of forming a surgical buttress comprising:

selecting a bio-compatible material and forming at least one layer;

forming at least one pocket therein; and

applying a bio-active agent to the surgical buttress.

17. The method according to claim 16, further comprising applying a porous layer to the at least one layer.

18. The method according to claim 16, wherein the at least one pocket is formed by machining the at least one layer.

19. The method according to claim 16, further comprising cutting the at least one layer to a desired dimension.

20. The method according to claim 16, wherein the surgical buttress is formed so as to have a porous layer and a non-porous layer.

21. The method according to claim 16, wherein the surgical buttress is formed so as to have a reinforcement member.

22. The method according to claim 16, wherein the bioactive agent is selected from the group consisting of anti-adhesives, antimicrobials, analgesics, antipyretics, anesthetics, antiepileptics, antihistamines, anti-inflammatories, cardiovascular drugs, diagnostic agents, sympathomimetics, cholinomimetics, antimuscarinics, antispasmodics, hormones, growth factors, muscle relaxants, adrenergic neuron blockers, antineoplastics, immunogenic agents, immunosuppressants, gastrointestinal drugs, diuretics, steroids, lipids, lipopolysaccharides, polysaccharides, enzymes, and combinations thereof.

23. The method according to claim 16, wherein the bioactive agent is selected from the group consisting of anti-tumor agents and tumor suppressors.

24. The method according to claim 16 wherein the at least one layer includes material derived from animal collagen.

25. The method according to claim 16, wherein the at least one layer includes a gelled collagen solution applied in a layer and dried.

26. A surgical stapling apparatus having the surgical buttress according to claim 16.