Lambda fixator

Lambda fixator is fundamentally composed of two rings, which have at least double-row holes, connected to each other by means of three main structural elements called lambda-module. There are altogether four different kinds of lambda-module, two of them being basic types, the others being their subclasses. In the first basic type, there are three spherical joints at the ends, a simple revolute joint connecting long leg to the short leg and two screw-nut pairs for changing leg lengths. In the second basic type, there exist two spherical joints at the ends of long leg, two universal joints at the each end of the short leg and two screw-nut pairs changing leg lengths. Using only one kind of lambda-module it is possible to set the fixator up in 512 different ways. 人字形固定器基本上由通过被称作λ模块的三个主要结构单元彼此连接的两个环构成，所述环至少具有双排孔洞。共有四种不同的λ模块，其中两种是基本类型，其他的则是基本类型的子类。在第基本类型中存在末端处的三个球形接头、把长足连接到短足的简单转动接头以及用于改变足部长度的两个螺钉-螺帽对。在第二基本类型中存在长足末端处的两个球形接头、短足的每个末端处的两个万向接头以及改变足部长度的两个螺钉-螺帽对。通过使用仅仅种λ模块有可能通过512种不同方式设置固定器。