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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0545297 (1995-10-19) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 620 인용 특허 : 9 |
A surgical stapler having an end effector with a reduced stacking height for its components to decrease the diameter of a trocar cannula or other access device during minimally invasive surgery is disclosed. The end effector includes an elongated channel containing a staple cartridge and an anvil mo
A surgical stapler having an end effector with a reduced stacking height for its components to decrease the diameter of a trocar cannula or other access device during minimally invasive surgery is disclosed. The end effector includes an elongated channel containing a staple cartridge and an anvil movable toward and away from the channel. The anvil is movable to first, second and third fixed positions relative to the channel. The first fixed position is a closed position which eliminates clearance between the anvil and cartridge. The second fixed position is an open position for inserting tissue between the anvil and cartridge. The third fixed position is a clamped position where a tissue-clamping gap exists between the anvil and cartridge to properly clamp tissue. The elimination of clearance between the anvil and cartridge of the first fixed position of the anvil reduces the stacking height, and therefore enables the user to insert the stapler through a smaller diameter access opening.
An endoscopic surgical stapler capable of clamping bodily tissue prior to firing staples to fasten said tissue, said stapler comprising: an end effector including an anvil and an elongated channel containing a staple cartridge therein, said anvil facing said channel and movable toward and away there
An endoscopic surgical stapler capable of clamping bodily tissue prior to firing staples to fasten said tissue, said stapler comprising: an end effector including an anvil and an elongated channel containing a staple cartridge therein, said anvil facing said channel and movable toward and away therefrom; and a rotatable closure sleeve from which said end effector extends, said sleeve having a pair of mutually opposed indentations; wherein said anvil is moveable to first, second and third fixed positions relative to said channel, said first fixed position being a closed position wherein said anvil is in intimate contact with said staple cartridge thereby eliminating any clearance therebetween, said second fixed position being an open position wherein said anvil is spaced from said cartridge for inserting said bodily tissue therebetween, said third fixed position being a clamped position wherein said anvil is adjacent said cartridge so as to provide a tissue-clamping gap therebetween for clamping said bodily tissue, and said anvil is moveable from said third to first fixed positions when said closure sleeve is rotated and said indentations contact said anvil and said channel.
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