Development of the glove for measuring the pressure applied to the hand of the nurses who are nursing patients or the elderly and research for their method to use hand

以压力为参数，对护士用手方法的特点进行了研究。结果表明，有经验的护士和新手(护生)的手的使用方法不同，其使用方法的侧向性因支撑面面积的不同而不同。此外，为了了解压力随时间的变化，在布手套的内表面贴上压敏导电橡胶(稻叶橡胶有限公司：SF4L)，通过试验的方法制作了一种手套压力传感器，并对其特性进行了研究。在本实验中，一只手设置了28个点，以便在多个点上测量。结果表明，除第3方阵外，在625~2500g/cm2范围内，压力与输出电压呈线性关系，而在2500g/cm2以上，输出电压趋于饱和，这可能是由于压力被…吸收所致更多的是布料，因为手套在感应器和手掌之间。因此，在实际应用中仍然存在压力检测范围有限的问题，目前正在解决手套的改进问题。结合手套的改进，尝试使用无手套的方法测量压力。这是一种测量护士手(右手)压力的方法，当护士抬起模拟的人体下肢模型时，传感器直接连接在其手掌上。因此，虽然抬起下肢时施加在手掌上的压力因护士的不同而有所不同，但有一种趋势是，压力集中在由第一近侧指骨、左手第三近侧指骨下方的手掌和右手第一近侧指骨的手掌组成的“3点”上。左手第2近节指骨正下方的位置用来代替左手第3近侧指骨，或同时使用。在此基础上，认为护士在抬起下肢时，在左手第2近侧指骨正下方的另一个位置上再加一个左手第2近侧指骨正下方的位置，以“三角形”分散力量来支撑，或用“4点”来保证稳定性。较少

The characteristics of nurse's method to use hand has been studied using pressure as a parameter. As a result, it was revealed that their method to use hand is different between the experienced nurses and beginners (student nurse), and laterality in their method to use hand varies depending on the area of supporting surface. Furthermore, in order to understand the change of pressure with time, a 'Glove Pressure Sensor' was made by method of trial, in which pressure-sensitive and conductive rubber (Inaba Rubber Co. Ltd : SF4L) was patched on the inner surface of the cloth glove, and its characteristics was investigated. In this experiment, 28 points were set in one hand so as to measure in multiple points. As a result, linear relationship between pressure and output voltage was confirmed in the area ranging 625 to 2500 g/cm^2 except for the 3rd distal phalanx, while output voltage was tended to be saturated in the range over 2500 g/cm^2. The reason may be that the pressure is absorbed b … More y the cloth because the glove is between the sensor and the palm. So, there remains the problem for a practical use that detection range for pressure is limited, and currently improvement of the glove is tackled.In tandem with improvement of the glove, pressure measurement was attempted using the method without the glove. This was the method to measure the pressure applied to nurse's hand (right-handed), on whose palm the sensor is directly attached with a medical tape, when the nurse is lifting the simulation model of the human lower extremity. As a result, although the pressure applied to the palm when lifting the lower extremity varies depending on the nurses, there was a tendency that the pressure is supported focusing on '3 points' consisting of the 1st proximal phalanx, the palm below the 3rd proximal phalanx of the left hand and the palm below the 1st proximal phalanx of the right hand. The site immediately below the 2nd proximal phalanx of the left hand is used in place of the 3rd proximal phalanx of the left hand, or they are used concurrently.Based on the above, it was considered that the nurses support by dispersing their force in 'the triangle' or ensure the stability using '4 points' by further adding to these 3 points other one site immediately below the 2nd proximal phalanx of the left hand when lifting the lower extremity. Less