天臣国际医疗科技股份有限公司;TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
发明人:
CHEN, Zhi,陈志,GUO, Yi,郭毅,LIN, Jiang,林江
申请号：
CNCN2019/126299
公开号：
WO2020/125677A1
申请日:
2019.12.18
申请国别(地区):
CN
年份:
2020
代理人:
摘要：
Provided are a rotary knob assembly and a circular-tube-type stapler. The rotary knob assembly comprises a rotary knob body (1), a clutch member and a rotary knob rear cover, wherein the rotary knob body (1) is provided with a first mating member, the rotary knob body (1) rotates to drive a lead screw (85) to move in an axial direction of the stapler, the clutch member is provided with a second mating member, a compressed spring (3) is arranged between an adjusting member (5) and the clutch member, and the adjusting member (5) can axially move so as to move away from or close to the clutch member to change the compressed length of the compressed spring (3). By dividing the rotary knob assembly into the rotary knob body (1) and the clutch member, after the resistance borne by a rotary knob reaches a resistance preset value, the clutch member cannot drive the rotary knob body (1) to rotate, at this time, the rotary knob assembly enters a failure mode, and a gap between a staple anvil assembly (83) and a staple cartridge remains the same, so that tissue is not compressed excessively； and the size of the resistance preset value is related to the spring force of the compressed spring (3) at the near end of the clutch member, and the spring force of the compressed spring (3) can be adjusted by changing the distance between the adjusting member (5) and the clutch member, so that the magnitude of the resistance preset value can be adjusted.L'invention concerne un ensemble bouton rotatif et une agrafeuse circulaire de type tube. L'ensemble bouton rotatif comprend un corps (1), un élément d'embrayage et un couvercle arrière, le corps de bouton rotatif (1) étant pourvu d'un premier élément d'accouplement, et tournant pour entraîner une vis mère (85) à se déplacer dans une direction axiale de l'agrafeuse, l'élément d'embrayage est pourvu d'un second élément d'accouplement, un ressort comprimé (3) est disposé entre un élément de réglage (5) et l'élément d'embrayage, et l'élément
