Redhead R G
Prosthet Orthot Int. 1979 Dec;3(3):126-36. doi: 10.3109/03093647909103096.
A new type of above-knee socket has been designed to provide total surface support and to dispense with ischial bearing as the primary weight bearing area. The socket is based upon the hypothesis that if the soft tissues of an above-knee stump are adequately supported in a suitably shaped container they will behave under load as an elastic solid with low stiffness. A method has been devised for taking the cast for the new type socket using an elastic sleeve as a "compliant socket". The grip of the elastic sleeve and the use of traction weights deform the stump tissues to the required shape while the cast is setting. The results of laboratory measurements of the transinterface pressures in these sockets under axial loading conditions have correlated well with the figures forecast by calculation. The new socket is now available to patients at a number of Centres in England.
一种新型的大腿假肢接受腔已被设计出来,旨在提供全面的表面支撑,并摒弃坐骨支撑作为主要的承重区域。该接受腔基于这样一种假设:如果大腿残肢的软组织在形状合适的容器中得到充分支撑,它们在负载下将表现为具有低刚度的弹性固体。已经设计出一种方法,使用弹性套筒作为“顺应性接受腔”来为新型接受腔取模。弹性套筒的握持和牵引重物的使用在石膏凝固时将残肢组织变形为所需形状。在轴向加载条件下对这些接受腔的界面压力进行的实验室测量结果与计算预测的数值相关性良好。现在,英格兰的多个中心的患者都可以使用这种新型接受腔。