An Experimental Method for Measuring Flexor Pulleys' Mechanical
Effects by Imitating Hand in vivo
Wang Luofu Zhang Zhengzhi Liu Zhengjin Cheng Haiping
Anatomy Department,Third Military Medical University, Chongqing 400038
First Affiliated Hospital, Third Military Medical University, Chongqing 400038
Abstract Flexor pulley system has an important mechanical effect on digital flexion function. An experimental method was designed to measure the pulleys' mechanical effects by using hand in vitro to imitate hands in vivo. The pulleys' function was evaluated by pulley incision and pulley preservation, and percentage loss of work was used as an index. The results demonstrate that this experiment is reasonable in design and methodology.
Key words Digital flexor tendon Pulley
1 材料和方法
1.1 材料
成年人尸体上肢标本11只，其中左侧5只，右侧6只，死后4 h内低温(-20 ℃)冷冻保存待用。
1.2 实验装置
图1 固定台示意图
Fig 1 Drawing of fixation device
张力测试机是长春试验机研究所生产的CSS-1120型电子万能实验机，力传感器的量程为0～500 N，精确度为±1%。实验中张力测试机由计算机控制，并由计算机采集位移和载荷数据。实验装置的模式图(见图2)。
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