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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0711979 (2007-02-28) |
등록번호 | US-8317070 (2012-11-27) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 486 인용 특허 : 1111 |
A surgical stapling device that comprises an end effector. According to various embodiments, the end effector comprises a circular anvil having a staple forming surface and a plurality of staples facing the staple forming surface of the anvil. The end effector also comprises a staple driver assembly
A surgical stapling device that comprises an end effector. According to various embodiments, the end effector comprises a circular anvil having a staple forming surface and a plurality of staples facing the staple forming surface of the anvil. The end effector also comprises a staple driver assembly comprising a plurality of staple drivers. Each staple driver supports one of the plurality of staples and is configured such that, when the staple driver assembly is actuated, each staple driver drives the staple into the staple forming surface of the anvil. A first quantity of the plurality of staple drivers has a first height and a second quantity of the plurality of staple drivers has a second height, wherein the first height is less than the second height.
1. A surgical stapling device comprising an end effector that comprises: a circular anvil having a staple forming surface;a plurality of staples facing the staple forming surface of the anvil, each staple comprising a main portion and two prongs, wherein the two prongs each comprise a first end and
1. A surgical stapling device comprising an end effector that comprises: a circular anvil having a staple forming surface;a plurality of staples facing the staple forming surface of the anvil, each staple comprising a main portion and two prongs, wherein the two prongs each comprise a first end and a second end, wherein the first ends are connected to opposite ends of the main portion, and wherein the two prongs extend non-parallelly from the main portion; anda staple driver assembly comprising a plurality of staple drivers, wherein each staple driver supports one of the plurality of staples and is configured such that, when the staple driver assembly is actuated, each staple driver drives the staple into the staple forming surface of the anvil, wherein a first quantity of the staples have a first pre-deformation height, measured from a lower surface of the main portion to the second end of the first prong, and a second quantity of the staples have a second pre-deformation height, measured from a lower surface of the main portion to the second end of the first prong, wherein the first height is less than the second height, such that when the staple driver assembly is actuated, the first quantity of staples have a different formed staple length than the second quantity of staples. 2. The surgical stapling device of claim 1, wherein the staple driver assembly comprises an outer ring of the staple drivers and an inner ring of the staple drivers. 3. The surgical stapling device of claim 1, further comprising: a handle assembly;a shaft assembly connected to the handle assembly, wherein the end effector is connected to the shaft assembly. 4. The surgical stapling device of claim 1, wherein all of the staples have the same wire diameter. 5. The surgical stapling device of claim 1, wherein a first quantity of the plurality of staples have a first wire diameter and a second quantity of the plurality of staples have a second wire diameter, wherein the first wire diameter is less than the second wire diameter. 6. The surgical stapling device of claim 1, wherein the staple forming undersurface of the anvil defines a plurality of staple forming pockets, each pocket aligned with an end of one of the plurality of staples, wherein a first quantity of the plurality of staple forming pockets has a first depth and a second quantity of the plurality of staple forming pockets has a second depth, wherein the first depth is greater than the second depth. 7. The surgical stapling device of claim 1, wherein the end effector further comprises a knife for cutting tissue clamped by the end effector. 8. A surgical stapling device comprising: a non-pivotable anvil having a staple forming surface; anda staple cartridge facing the anvil, wherein the staple cartridge comprises: a plurality of staples facing the staple forming surface of the anvil, each staple comprising a main portion and two prongs, wherein the two prongs each comprise a first end and a second end, wherein the first ends are connected to opposite ends of the main portion, and wherein the two prongs extend non-parallelly from the main portion; anda plurality of staple drivers, wherein each staple driver supports one of the plurality of staples and is configured such that, when the staple drivers are actuated, each staple driver drives the staple into the staple forming surface of the anvil, wherein a first quantity of the staples have a first pre-deformation height, measured from a lower surface of the main portion to the second end of the first prong, and a second quantity of the staples have a second pre-deformation height, measured from a lower surface of the main portion to the second end of the first prong, wherein the first height is less than the second height, such that when the staple driver assembly is actuated, the first quantity of staples have a different formed staple length than the second quantity of staples. 9. The surgical stapling device of claim 8, wherein the anvil is slideably moveable toward the staple cartridge to clamp tissue between the anvil and the staple cartridge. 10. The surgical stapling device of claim 8, wherein the staple cartridge comprises at least two rows of staple drivers. 11. The surgical stapling device of claim 8, wherein the staple cartridge further comprises a tissue retaining pin for engaging an opening the anvil when the staple cartridge moves toward the anvil into a closed position. 12. The surgical stapling device of claim 8, wherein all of the staples have the same wire diameter. 13. The surgical stapling device of claim 8, wherein a first quantity of the plurality of staples have a first wire diameter and a second quantity of the plurality of staples have a second wire diameter, wherein the first wire diameter is less than the second wire diameter. 14. The surgical stapling device of claim 8, wherein the staple forming undersurface of the anvil defines a plurality of staple forming pockets, each pocket aligned with an end of one of the plurality of staples, wherein a first quantity of the plurality of staple forming pockets has a first depth and a second quantity of the plurality of staple forming pockets has a second depth, wherein the first depth is greater than the second depth.
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