[미국특허]
Buttress and surgical stapling apparatus
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/04
B29C-039/12
A61B-017/072
A61B-017/00
출원번호
US-0178927
(2014-02-12)
등록번호
US-9636850
(2017-05-02)
발명자
/ 주소
Stopek (née Prommersberger), Megan
Nentwick, Brian
Gravagna, Philippe
Bayon, Yves
Dassonville, Dagmar
Meneghin, Alfredo
Lecuivre, Julie
출원인 / 주소
Covidien LP
인용정보
피인용 횟수 :
9인용 특허 :
276
초록
Multilayer structures including a porous layer and a non-porous layer are useful as buttresses when associated with a surgical stapling apparatus.
대표청구항▼
1. A surgical stapling apparatus comprising: a staple cartridge containing at least one staple and including a staple ejecting surface having an opening through which the at least one staple is ejected;an anvil having a staple forming surface, wherein one of the staple ejecting surface of the staple
1. A surgical stapling apparatus comprising: a staple cartridge containing at least one staple and including a staple ejecting surface having an opening through which the at least one staple is ejected;an anvil having a staple forming surface, wherein one of the staple ejecting surface of the staple cartridge or the staple forming surface of the anvil includes a plurality of pins, each pin of the plurality of pins extending along an axis transverse to the staple ejecting surface or the staple forming surface, and laterally spaced inwardly of outer side edges of the staple ejecting surface or the staple forming surface; anda buttress positioned on the staple cartridge or the anvil, the buttress having at least one bioactive agent, and including a plurality of holes extending therethrough, the buttress releasably attached to the staple cartridge or the anvil by frictional engagement of each hole of the plurality of holes of the buttress with a pin of the plurality of pins of the staple cartridge or the anvil. 2. The surgical stapling apparatus according to claim 1, wherein the buttress has more than one layer. 3. The surgical stapling apparatus according to claim 1, wherein the buttress has a porous layer including a plurality of pores and a non-porous layer. 4. The surgical stapling apparatus according to claim 3, wherein the non-porous layer is an adhesion barrier. 5. The surgical stapling apparatus according to claim 3, wherein the non-porous layer is a film. 6. The surgical stapling apparatus according to claim 3, wherein the non-porous layer is in contact with the staple cartridge or the anvil to which the buttress is releasably attached. 7. The surgical stapling apparatus according to claim 3, wherein the porous layer is a fibrous structure. 8. The surgical stapling apparatus according to claim 3, wherein the porous layer is partially disposed within the non-porous layer. 9. The surgical stapling apparatus according to claim 3, wherein at least one of the porous layer or the non-porous layer is formed from a non-bioabsorbable material. 10. The surgical stapling apparatus according to claim 2, wherein the buttress has at least one reinforcement member. 11. The surgical stapling apparatus according to claim 10, wherein the at least one reinforcement member is a mesh. 12. The surgical stapling apparatus according to claim 10, wherein the at least one reinforcement member is selected from the group consisting of monofilaments, multifilament braids, chopped fibers, and combinations thereof. 13. The surgical stapling apparatus according to claim 10, wherein the at least one reinforcement member includes a first reinforcement member oriented in a first direction and a second reinforcement member oriented in a second direction. 14. The surgical stapling apparatus according to claim 13, wherein the first and second reinforcement members are disposed in different layers of the buttress. 15. The surgical stapling apparatus according to claim 1, 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. 16. The surgical stapling apparatus according to claim 1, wherein the bioactive agent is selected from the group consisting of anti-tumor agents and tumor suppressors. 17. The surgical stapling apparatus according to claim 1, wherein the buttress includes material derived from animal collagen. 18. The surgical stapling apparatus according to claim 1, wherein the buttress includes a gelled collagen solution applied in a layer and dried. 19. The surgical stapling apparatus according to claim 1, wherein the buttress includes oxidized collagen. 20. The surgical stapling apparatus according to claim 1, wherein the plurality of holes of the buttress are disposed in corners of the buttress. 21. The surgical stapling apparatus according to claim 1, further comprising at least one of an adhesive, a sealant, or a glue disposed between the buttress and the staple cartridge or the anvil to which the buttress is releasably attached. 22. The surgical stapling apparatus according to claim 1, wherein the buttress defines outer side edges that are coterminous with the outer side edges of the staple ejecting surface or the staple forming surface when the buttress is disposed thereon. 23. A surgical stapling apparatus comprising: a staple cartridge containing at least one staple and including a staple ejecting surface having an opening through which the at least one staple is ejected;an anvil having a staple forming surface, wherein one of the staple ejecting surface of the staple cartridge or the staple forming surface of the anvil includes a plurality of pins extending transversely therefrom, each pin of the plurality of pins laterally spaced inwardly of an outer perimeter of the staple ejecting surface or the staple forming surface, and including a first end directly coupled to the staple ejecting surface or the staple forming surface, and a free end longitudinally aligned with the first end; anda buttress positioned on the staple cartridge or the anvil, the buttress having a plurality of holes extending therethrough, the buttress releasably attached to the staple cartridge or the anvil by frictional engagement of the plurality of holes of the buttress with the plurality of pins of the staple cartridge or the anvil.
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