UNASSIGNED:自动调节假肢接受腔工程中的一个挑战是在用户改变身体位置和活动的同时保持控制系统的稳定运行。这项研究的目的是测试自动调整插座尺寸以保持贴合性的插座的稳定性。坐着期间的插座释放是在两次行走之间进行的。
UNASSIGNED:制造了带有监测衬套和插座之间距离的传感器的可调节插座。电机驱动面板和基于微处理器的控制系统在行走期间调整插座尺寸以保持目标感测距离。连续记录肢体流体体积。在八个坐/走周期中,插座面板在坐着时被释放,然后回到行走的位置,在前一回合结束时的尺寸或体积大1.0%的尺寸。
未经授权:在六个经胫骨假体使用者中,控制系统保持稳定的操作,并没有饱和(移动到并保持在执行器的范围的末端),在98%的步行bouts。肢体流体体积变化通常与控制系统执行的面板位置变化相匹配。
UNASSIGNED:控制系统的稳定运行表明自动调节插座已准备好在用户\'家中设置中进行测试。
UNASSIGNED: A challenge in the engineering of auto-adjusting prosthetic sockets is to maintain stable operation of the control system while users change their bodily position and activity. The purpose of this study was to test the stability of a socket that automatically adjusted socket size to maintain fit. Socket release during sitting was conducted between bouts of walking.
UNASSIGNED: Adjustable sockets with sensors that monitored distance between the liner and socket were fabricated. Motor-driven panels and a microprocessor-based control system adjusted socket size during walking to maintain a target sensed distance. Limb fluid volume was recorded continuously. During eight sit/walk cycles, the socket panels were released upon sitting and then returned to position for walking, either the size at the end of the prior bout or a size 1.0% larger in volume.
UNASSIGNED: In six transtibial prosthesis users, the control system maintained stable operation and did not saturate (move to and remain at the end of the actuator\'s range) during 98% of the walking bouts. Limb fluid volume changes generally matched the panel position changes executed by the control system.
UNASSIGNED: Stable operation of the control system suggests that the auto-adjusting socket is ready for testing in users\' at-home settings.