气压驱动的阴茎硬度检测装置

Pneumatically driven device for penile rigidity measurement

摘要

为解决传统设备无法同时检测轴向和径向硬度、使用成本高昂等问题，提出并设计一种气压驱动的阴茎硬度检测装置，包含轴向套体和气压环等组件，分别用于检测阴茎轴向和径向硬度。分析装置硬度检测原理；根据装置的结构与材料特性，通过理论分析和有限元仿真分别建立阴茎轴向、径向硬度检测模型；在室温为300 K的环境下搭建实验平台，验证气压环有限元仿真模型和阴茎硬度检测模型，并设计温度实验对模型进行温度补偿。结果表明：气压环内径变化的实测数据与仿真数据一致性较高，平均相对误差为0.79%，为径向硬度的准确检测提供基础，装置轴向硬度检测数据与薄膜压力传感器结果的平均相对误差为0.83%，径向硬度检测数据与临床使用设备RigiScan检测数据平均相对误差为3.96%，验证装置轴向、径向硬度检测模型的准确性，修正后的检测模型可适配不同环境温度，提升装置在不同环境下的检测可靠性。

Abstract

A pneumatically driven device for penile rigidity measurement is proposed to overcome the limitations of conventional devices, including the incapability of simultaneous axial and radial rigidity measurement and high operational costs. The proposed device consists of an axial sleeve and a pneumatic ring for axial and radial assessments, respectively. The measurement principle is analyzed, and based on the structural and material properties of the device, axial and radial measurement models are established through theoretical analysis and finite element simulation. An experimental platform is constructed, and experiments are conducted at room temperature at 300 K to verify the finite element model of the pneumatic ring and the penile rigidity measurement models. Further temperature experiments are performed to derive a temperature compensation model. Results show that the measured change in the inner diameter of the pneumatic ring is in good agreement with simulated data, with a mean relative error of 0.79%, supporting accurate radial-rigidity estimation. The mean relative error between axial rigidity measured by the device and thin-film pressure sensor readings is 0.83%, and that for measured radial rigidity against RigiScan measurements is 3.96%, which verifies the accuracy of the axial and radial measurement models. With temperature compensation, the measurement models remain reliable across varying ambient conditions, improving the robustness of the device in different settings.

关键词

阴茎硬度 / 气压驱动 / 检测装置 / 有限元仿真

Key words

penile rigidity / pneumatically driven / measurement device / finite element simulation

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基金资助

国家自然科学基金(52275350)

上海工程技术大学国际合作科研平台建设项目(0301006)