Buttress retention system for linear endostaplers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/068
A61B-017/072
출원번호
US-0681151
(2015-04-08)
등록번호
US-9198660
(2015-12-01)
발명자
/ 주소
Hodgkinson, Gerald
출원인 / 주소
Covidien LP
인용정보
피인용 횟수 :
19인용 특허 :
257
초록▼
An end effector for use with a surgical stapler comprising a staple cartridge having a tissue contacting surface, a first side surface, and a second side surface opposite the first side surface, an anvil plate having a tissue contacting surface, a first side surface, and a second side surface opposi
An end effector for use with a surgical stapler comprising a staple cartridge having a tissue contacting surface, a first side surface, and a second side surface opposite the first side surface, an anvil plate having a tissue contacting surface, a first side surface, and a second side surface opposite the first side surface, wherein the first and second side surfaces of each of the staple cartridge and anvil plate have overmolded zones, a buttress releasably disposed on the tissue contacting surfaces of each of the staple cartridge and the anvil plate, and a pair of sutures wherein each suture is bonded to the respective overmolded zones of the first and second side surfaces configured to retain the respective buttress atop the respective tissue contacting surfaces.
대표청구항▼
1. An anvil assembly of a jaw of a surgical stapler, the anvil assembly comprising: an anvil plate defining: a tissue contacting surface defining a plurality of staple forming slots and a central longitudinal extending knife slot; anda first side surface and a second side surface opposite the first
1. An anvil assembly of a jaw of a surgical stapler, the anvil assembly comprising: an anvil plate defining: a tissue contacting surface defining a plurality of staple forming slots and a central longitudinal extending knife slot; anda first side surface and a second side surface opposite the first side surface;wherein the first and second side surfaces each have polymeric overmolded zones integrally formed with the anvil plate and disposed near a proximal portion and a distal portion thereof, wherein at least one polymeric overmolded zone of the polymeric overmolded zones is textured. 2. The anvil assembly of claim 1, further including a buttress releasably disposed on the tissue contacting surface of the anvil plate. 3. The anvil assembly of claim 2, wherein the plurality of staple forming slots are arranged in at least a pair of longitudinally extending rows. 4. The anvil assembly of claim 3, wherein the knife slot extends longitudinally between the pair of longitudinally extending rows of the plurality of staple forming slots. 5. The anvil assembly of claim 4, further including a pair of sutures traversing across the proximal and distal portions of the anvil plate, wherein the pair of sutures secure the buttress to the tissue contacting surface. 6. The anvil assembly of claim 5, wherein each suture of the pair of sutures is bonded to the respective polymeric overmolded zone of the first and second side surfaces of the anvil plate. 7. The anvil assembly of claim 1, further including a pair of sutures traversing across the proximal and distal portions of the anvil plate, wherein the pair of sutures secure the buttress to the tissue contacting surface. 8. The anvil assembly of claim 7, wherein each suture of the pair of sutures is bonded to the respective polymeric overmolded zone of the first and second side surfaces of the anvil plate. 9. An anvil assembly of a jaw of a surgical stapler, the anvil assembly comprising: an anvil plate defining: a tissue contacting surface defining a plurality of staple forming slots and a central longitudinal extending knife slot; anda first side surface and a second side surface opposite the first side surface,wherein the first and second side surfaces each have polymeric overmolded zones integrally formed with the anvil plate and disposed near a proximal portion and a distal portion thereof, wherein at least one polymeric overmolded zone of the polymeric overmolded zones defines at least one groove. 10. The anvil assembly of claim 9, further including a buttress releasably disposed on the tissue contacting surface of the anvil plate. 11. The anvil assembly of claim 10, further including a pair of sutures traversing across the proximal and distal portions of the anvil plate, wherein ends of the pair of sutures are retained in a respective groove of the at least one polymeric overmolded zone to secure the buttress to the tissue contacting surface of the anvil plate. 12. The anvil assembly of claim 11, wherein the buttress is retained against the tissue contacting surface of the anvil plate by the pair of sutures. 13. An anvil assembly of a jaw of a surgical stapler, the anvil assembly comprising: an anvil plate defining: a tissue contacting surface defining a plurality of staple forming slots and a central longitudinal extending knife slot; anda first side surface and a second side surface opposite the first side surface;wherein the first and second side surfaces each have polymeric overmolded zones integrally formed with the anvil plate and disposed near a proximal portion and a distal portion thereof;a buttress disposed on the tissue contacting surface of the anvil plate; anda proximal suture traversing across the proximal portion of the anvil plate, and a distal suture traversing across the distal portion of the anvil plate, wherein ends of the proximal and distal sutures are secured to the polymeric overmolded zones to secure the buttress to the tissue contacting surface of the anvil plate.
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