5R MED TECHNOLOGY (CHENGDU) CO., LTD; LTD;5R MED TECHNOLOGY (CHENGDU) CO.;成都五义医疗科技有限公司
发明人:
ZHU, Moshu,朱莫恕
申请号：
CNCN2017/093604
公开号：
WO2018/024105A1
申请日:
2017.07.20
申请国别(地区):
CN
年份:
2018
代理人:
摘要：
A multiangular trocar sealing membrane (130) having recesses (240). The sealing membrane (130) comprises a proximal opening (132), a distal hole (133) and a sealing wall (235) extending from the distal hole (133) to the proximal opening (132). The distal hole (133) is formed by a sealing lip (134) and is used for accommodating an inserted instrument and forming a gas seal. The sealing lip (134) comprises a central axis (158) and a transverse plane (159) approximately perpendicular to the axis (158)； and the sealing wall (235) has a proximal face and a distal face. The sealing wall (235) comprises a flange (136), a principal rotary wall, and a plurality of notched recesses (240). The principal rotary wall comprises a first rotary wall (138) extending from the sealing lip (134) to the flange (136) and a second sealing wall (139) extending from the flange (136) to the sealing lip (134). The first sealing wall (138) forms a first angle (α) with the transverse plane (159), the second rotary wall (139) forms a second angle (β) with the transverse plane (159), and the first angle (α) is less than the second angle (β) and is less than 90 degrees. The recesses (240) have the functions of increasing circumferential perimeter, reducing the area of a package, improving reliability of lubrication and increasing axial tensile stiffness, so that friction resistance and stick-slip may be greatly reduced.L'invention concerne une membrane d'étanchéité de trocart multiangulaire (130) qui présente des évidements (240). La membrane d'étanchéité (130) comporte une ouverture proximale (132), un orifice distal (133) et une paroi d'étanchéité (235) s'étendant de l'orifice distal (133) à l'ouverture proximale (132). L'orifice distal (133) est formé par une lèvre d'étanchéité (134), et est utilisé pour recevoir un dispositif inséré et former un joint d'étanchéité au gaz. La lèvre d'étanchéité (134) comprend un axe central (158) et un plan transversal (159) approximativement perpendiculaire à
