Surgical staple cartridge with self-dispensing staple buttress
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/068
A61B-017/072
출원번호
US-0231064
(2011-09-13)
등록번호
US-9101359
(2015-08-11)
발명자
/ 주소
Smith, Bret W.
Lytle, IV, Thomas W.
Miller, Matthew C.
Wang, Yi-Lan
Zavatsky, Joseph
Modi, Kreena
Zingman, Aron O.
출원인 / 주소
Ethicon Endo-Surgery, Inc.
대리인 / 주소
Frost Brown Todd LLC
인용정보
피인용 횟수 :
8인용 특허 :
97
초록▼
A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a rem
A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge when in an open position. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The instrument includes a movable buttress that is integral with the housing of the cartridge or integral with the lower jaw of the end effector. The buttress may attach to the anvil and include a portion to receive tissue. The receipt of tissue urges and moves the buttress proximally inwards to further encompass the tissue.
대표청구항▼
1. A surgical instrument, comprising: (a) a body;(b) a shaft housing a firing bar;(c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft;(d) a removable cartridge, wherein the lower jaw
1. A surgical instrument, comprising: (a) a body;(b) a shaft housing a firing bar;(c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft;(d) a removable cartridge, wherein the lower jaw is configured to receive a cartridge when the end effector is in an open configuration, the cartridge comprising: (i) a housing,(ii) a plurality of staples disposed in the housing, and(iii) a deck disposed over the plurality of staples, the deck defining apertures, each aperture being substantially disposed over each staple; and(e) a movable buttress that is integral with the housing of the cartridge or integral with the lower jaw of the end effector, wherein the buttress is disposed in a roll within the housing of the cartridge, the buttress being movable relative to the cartridge and relative to the end effector. 2. The surgical instrument of claim 1, wherein the roll is resiliently biased. 3. The surgical instrument of claim 1, wherein the buttress is disposed in a substantially flat position within the housing of the cartridge. 4. The surgical instrument of claim 3, wherein a free end of the buttress is configured to travel freely within the housing of the cartridge. 5. The surgical instrument of claim 1, wherein the housing of the cartridge comprises a cartridge pan, wherein the cartridge pan is configured to receive the buttress in a substantially flat position. 6. The surgical instrument of claim 1, the housing of the cartridge comprises a cartridge pan, wherein the buttress is disposed in a substantially flat position on an exterior, underside surface of the cartridge pan. 7. The surgical instrument of claim 1, wherein the housing of the cartridge comprises a cartridge pan, wherein an underside of the cartridge pan includes exterior walls, wherein the exterior walls are configured to receive the buttress in a substantially flat position. 8. The surgical instrument of claim 1, wherein the buttress is disposed in a substantially flat position along an interior surface of the lower jaw of the end effector, wherein the interior surface is configured to receive the removable cartridge. 9. The surgical instrument of claim 1, wherein the lower jaw of the end effector comprises interior walls, wherein the interior walls are configured to receive the removable cartridge, wherein the interior walls are further configured to receive the buttress in a substantially flat position. 10. The surgical instrument of claim 1, wherein an end of the buttress comprises a fastener. 11. The surgical instrument of claim 10, wherein a distal end of the anvil defines an opening configured to receive the fastener of the buttress. 12. The surgical instrument of claim 1, wherein the buttress comprises a biocompatible material selected from a group consisting of at least one of the following materials: epsilon-caprolactone glycolide, bovine pericardium, polylactic acid, polyglycolic acid, polyglactin, polydioxanone, polyglyconate, whey protein, cellulose gum, starch, gelatin, silk, nylon, polypropylene, braided polyester, polybutester, polyethylene, and polyetheretherketones. 13. The surgical instrument of claim 1, wherein the buttress comprises one of fibrin or thrombin. 14. The surgical instrument of claim 1, wherein the buttress is configured to provide reinforcement to the mechanical integrity of the staples when the staples are driven through the buttress and towards the anvil. 15. A surgical instrument, comprising: (a) a body;(b) a shaft housing a firing bar;(c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft;(d) a removable cartridge, wherein the lower jaw is configured to receive a cartridge when the end effector is in an open configuration, the cartridge comprising: (i) a housing,(ii) a plurality of staples disposed in the housing, and(iii) a deck disposed over the plurality of staples, the deck defining apertures, each aperture being substantially disposed over each staple; and(e) a movable buttress that is integral with the housing of the cartridge or integral with the lower jaw of the end effector, the buttress being movable relative to the cartridge and relative to the end effector, wherein an end of the buttress comprises a fastener, wherein a distal end of the anvil defines an opening configured to receive the fastener of the buttress.
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