Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore 119276, Singapore.
Department of Urology, National University Hospital, Singapore 119074, Singapore.
Sensors (Basel). 2022 Nov 30;22(23):9344. doi: 10.3390/s22239344.
Quantifiable erectile dysfunction (ED) diagnosis involves the monitoring of rigidity and tumescence of the penile shaft during nocturnal penile tumescence (NPT). In this work, we introduce Erectile Dysfunction SENsor (EDSEN), a home-based wearable device for quantitative penile health monitoring based on stretchable microtubular sensing technology. Two types of sensors, the T- and R-sensors, are developed to effectively measure penile tumescence and rigidity, respectively. Conical models mimicking penile shaft were fabricated with polydimethylsiloxane (PDMS) material, using different base to curing agent ratios to replicate the different hardness properties of a penile shaft. A theoretical buckling force chart for the different penile models is generated to determine sufficiency criteria for sexual intercourse. An average erect penile length and circumference requires at least a Young's modulus of 179 kPa for optimal buckling force required for satisfactory sexual intercourse. The conical penile models were evaluated using EDSEN. Our results verified that the circumference of a penile shaft can be accurately measured by T-sensor and rigidity using the R-sensor. EDSEN provides a private and quantitative method to detect ED within the comfortable confines of the user's home.
可量化的勃起功能障碍（ED）诊断需要监测夜间阴茎勃起（NPT）期间阴茎海绵体的硬度和肿胀。在这项工作中，我们介绍了 Erectile Dysfunction SENsor（EDSEN），这是一种基于可拉伸微管传感技术的家用可穿戴式定量阴茎健康监测设备。我们开发了两种传感器，即 T 型和 R 型传感器，分别用于有效测量阴茎勃起和硬度。使用聚二甲基硅氧烷（PDMS）材料制造了模仿阴茎轴的锥形模型，使用不同的基底到固化剂比来复制阴茎轴的不同硬度特性。为不同的阴茎模型生成了理论屈曲力图表，以确定进行性交的充分性标准。平均勃起阴茎长度和周长需要至少 179 kPa 的杨氏模量，以获得满意性交所需的最佳屈曲力。使用 EDSEN 评估了锥形阴茎模型。我们的结果验证了 T 型传感器可以准确测量阴茎轴的周长，而 R 型传感器则可以测量硬度。EDSEN 提供了一种私密且定量的方法，可在用户舒适的家中检测 ED。
