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1. 发明申请

WO2004014263A2 BONE CEMENT SYRINGE 审中-公开
标题翻译：骨水泥注射器
公开(公告)号：WO2004014263A2
公开(公告)日：2004-02-19
申请号：PCT/US0324297
申请日：2003-08-05
申请人： I FLOW CORP
发明人： PORTER WILLIAM M , AURIN GARY DOUGLAS
IPC分类号： A61B17/34 , A61B17/88 , A61F2/46 , A61M5/178 , A61M5/31 , A61M5/315
CPC分类号： A61B17/8816 , A61B17/3472 , A61B17/8822 , A61F2/4601 , A61M5/1782 , A61M5/3135 , A61M5/31511 , A61M5/31586
摘要： An improved syringe for delivering a viscous liquid, especially bone cement, to a surgical site, has a barrel with a distal outlet end and an open proximal end, and a plunger movable axially within the barrel, the plunger having a shaft extending proximally from the proximal end of the barrel. The plunger shaft incorporates a reinforcing structure that provides increased torsional rigidity and improved dispersion of torsional loads, and the barrel includes an outwardly and proximally flared peripheral rim around its proximal end. The peripheral rim forms a funnel that circumscribes less than 360°, and preferably about 240° of the proximal end of the barrel, thereby defining a gap in the rim that provides direct access to the open proximal end of the barrel. The rim facilitates the filling of the barrel either by pouring a liquid into the funnel, or by filling the barrel with a highly viscous, paste-like liquid directly into the open proximal end of the barrel through the gap. The shaft is formed of a pair of flattened, elongate longitudinal members that intersect at right angles to form a shaft structure that is cruciform in cross section, wherein the reinforcing structure is provided by a truss element lattice formed between the longitudinal members.
摘要翻译：用于将粘性液体（特别是骨粘固剂）输送到外科手术部位的改进的注射器具有带有远侧出口端和开口近端的筒体，以及在筒体内可轴向移动的柱塞，所述柱塞具有从所述筒体的近侧延伸的轴枪管的近端。柱塞轴包括增强结构，其提供增加的扭转刚度并改善扭转载荷的分散，并且筒包括围绕其近端的向外和向近端扩张的外围边缘。外围边缘形成一个漏斗，该漏斗围绕枪管的近端小于360°，优选地约240°，从而在轮缘中限定了提供直接进入枪管的开口近端的间隙。边缘通过将液体倒入漏斗中或者通过将高粘度的糊状液体直接填充到筒的敞开的近端中来容纳桶的填充。轴由一对扁平的，细长的纵向构件形成，该纵向构件以直角相交，形成十字形横截面的轴结构，其中，加强结构由在纵向构件之间形成的桁架构件格架提供。

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