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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0291086 (1981-08-07) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 707 인용 특허 : 2 |
A multi-staple cartridge for surgical staplers in which individual staples are retained and driven by separate but commonly actuated staple retaining units. Each of the units includes a movable staple carrier and a staple driving head. All units are actuated by a cartridge contained driving press so
A multi-staple cartridge for surgical staplers in which individual staples are retained and driven by separate but commonly actuated staple retaining units. Each of the units includes a movable staple carrier and a staple driving head. All units are actuated by a cartridge contained driving press so that the driving head and carrier are first moved together under a limited or yieldable force transmitting means tending to retain them in their initial relative position. The force transmitting means operative between the common driving press then advances the driving head relative to the carrier to set the staple. Final movement of the carrier and driving head is by direct abutting engagement with the driving press for all staples not previously clinched by the force of the yieldable force transmitting means. Tissue thickness variation is thus accommodated by each individual staple.
In a surgical stapler having an anvil for clinching a plurality of staples simultaneously, the improvement comprising: means defining a plurality of staple retaining units, each of said units comprising an independently movable staple carrier having an end surface facing in the direction of and mova
In a surgical stapler having an anvil for clinching a plurality of staples simultaneously, the improvement comprising: means defining a plurality of staple retaining units, each of said units comprising an independently movable staple carrier having an end surface facing in the direction of and movable toward said anvil, and a staple driving head movable relative to said carrier; and means for effecting simultaneous staple driving operation of said units to cause the carrier end surface of each of said units to move toward said anvil followed by movement of the staple driving head relative to the carrier of each unit, respectively; said end surface having an area larger than the area to which the force of said driving head is applied to a staple, thereby to impede movement of said carrier under a pressure imposed by said end surface on tissue overlying said anvil, which pressure is lower than the driving pressure of said driving head against a staple.
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