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Endoscopic surgical clip applier
专利权人:
Covidien LP
发明人:
Justin Williams
申请号:
US15705674
公开号:
US10492795B2
申请日:
2017.09.15
申请国别(地区):
US
年份:
2019
代理人:
摘要:
A ratchet assembly for use with an apparatus for applying surgical clips to body tissue includes a pawl and a biasing element. The pawl is slidably supported within a handle portion of the apparatus. The biasing element is supported by the handle portion and is in mechanical communication with the pawl. The biasing element has a biasing force configured to bias the pawl towards the rack such that the rack is permitted to translate in a distal direction, but is selectively inhibited from translating in a proximal direction until the rack is in a distal-most position. When the rack is urged in a proximal direction, the pawl exerts a force on the biasing element. When the force exerted on the biasing element is greater than the biasing force, the biasing element deflects allowing the pawl to disengage from the rack and permit the rack to translate in a proximal direction.
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