Norwegian University of Science and Technology (NTNU)
发明人:
Lars Cato REKSTAD,Brynjulf YSTGAARD
申请号：
US15551385
公开号：
US20180235635A1
申请日:
2017.06.28
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A surgical stapler 101 comprises a proximal end and a distal end, wherein the proximal end is proximate to the user in use and the distal end is distal from the user in use and an anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 at the distal end for providing resistance to staples during the stapling operation of the surgical stapler. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is configured to be actuated between a deployed state and a collapsed state. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 comprises a plurality of segments 130, 230, 330, 430, 530, 630, 730, 830, 930 arranged end-to-end. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is elongated in the collapsed state, the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 being elongated generally in a first direction D1. When viewed along the first direction D1 the area covered by the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is greater in the deployed state than the collapsed state. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is configured such that the segments 130, 230, 330, 430, 530, 630, 730, 830, 930 rotate about a rotation axis along a second direction D2 perpendicular to the first direction D1 when the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is actuated between the deployed and the collapsed states. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is configured such that adjacent segments 130, 230, 330, 430, 530, 630, 730, 830, 930 pivot relative to each other about a pivot axis along a third direction D3 perpendicular to the second direction D2 when the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is actuated between the deployed and collapsed states. The stapler 101 also comprises an actuator mech
