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，研究了护士用手方法的特点。结果显示，经验丰富的护士和新手（见习护士）的手的使用方法是不同的，并且他们的手的使用方法的侧边性取决于支撑面面积的不同。此外，为了了解压力随时间的变化，采用试验法制作了一种“手套压力传感器”，将压敏导电橡胶（稻叶橡胶有限公司：SF4L）贴合在布制手套的内表面，并对其特性进行了研究。本实验在一只手上设置28个点，以便进行多点测量。结果表明，除第三远端指骨外，在625 ~ 2500g /cm^2范围内，压力与输出电压呈线性关系，而在超过2500g /cm^2范围内，输出电压趋于饱和。原因可能是压力被布吸收了，因为手套在传感器和手掌之间。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。在改进手套的同时，也尝试了不戴手套的压力测量方法。这是一种测量当护士举起人体下肢模拟模型时，施加在护士（右手）手上的压力的方法，传感器直接附着在护士的手掌上。因此，尽管在抬起下肢时施加在手掌上的压力因护士而异，但有一种趋势，即压力集中在“3点”上，包括第一近端指骨，左手第三近端指骨下方的手掌和右手第一近端指骨下方的手掌。紧挨着左手第二近指骨下面的部位用来代替左手第三近指骨，或者两者同时使用。综上所述，我们认为护士在抬起下肢时可以通过分散“三角”的力量来支撑，或者通过在这3个点的基础上再加上左手第二近端指骨下方的另一个点来确保“4点”的稳定性。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