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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0235070 (1994-04-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 911 인용 특허 : 0 |
A surgical stapler instrument is provided for applying lateral lines of staples to tissue while cutting the tissue between those staple lines. The instrument includes a handle portion, an implement portion, a reciprocating section, a drive member and a movable actuator. The implement portion include
A surgical stapler instrument is provided for applying lateral lines of staples to tissue while cutting the tissue between those staple lines. The instrument includes a handle portion, an implement portion, a reciprocating section, a drive member and a movable actuator. The implement portion includes a staple cartridge and an anvil. The reciprocating section is adapted to move back and forth along an axis of the implement portion. The movable actuator is associated with the handle portion and is engaged with the drive member such that motion of the actuator causes the drive member to move back and forth between first and second drive positions separated by a first distance. Mechanisms are provided to position only a correct amount of tissue (a predetermined range) between the anvil and cartridge. A multiplier is further provided and is associated with the reciprocating section and the drive member for causing the reciprocating section to move back and forth between first and second reciprocating positions in response to movement of the drive member. The reciprocating section includes a work portion which, when moved distally, effects the firing of staples in the staple cartridge toward the anvil. The work portion is also provided with a reciprocating knife. The first and second reciprocating positions are separated by a second distance which differs from the first distance.
A surgical instrument comprising: a handle portion; a tissue enclosing portion having first and second implements capable of performing a function during a surgical procedure; a reciprocating section adapted to move back and forth along an axis of said implement portion, said reciprocating section i
A surgical instrument comprising: a handle portion; a tissue enclosing portion having first and second implements capable of performing a function during a surgical procedure; a reciprocating section adapted to move back and forth along an axis of said implement portion, said reciprocating section including a work portion capable of causing said first and second implements to perform said function; a drive member; a movable actuator associated with said handle portion which when engaged with said drive member causes said drive member to move back and forth along said implement portion; a tissue clamping actuator for causing tissue to be clamped between said first and second implements; and means on said tissue clamping member for preventing said drive member with said movable actuator if the thickness of the tissue clamped between said first and second implements does not fall within a predetermined range; and wherein said implement portion comprises: a staple cartridge having a plurality of staples and at least one slot for receiving a distal end of said work portion, said staple cartridge defining said first implement; an elongated channel extending from said handle portion and having a distal end which is adapted to receive said staple cartridge; an anvil mounted on said elongated channel for pivotable movement toward and away from said cartridge, said anvil defining said second implement; said work portion causing said staples to fire toward said anvil upon movement of said distal end of said work portion into said cartridge; a closure tube having distal and proximal ends, said distal end of said closure tube being adapted to engage said anvil for effecting pivotable movement of said anvil; a closure trigger having a handle section and a gear segment section; and, a closure yoke having distal and proximal ends said distal end of said yoke being connected to said proximal end of said closure tube and said proximal end of said yoke having a gear rack which is adapted to engage said gear segment section such that movement of said closure trigger effects movement of said closure tube.
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