Kaneko S, Mizunaga M, Yachiku S, Yamaguchi O, Omata S
Department of Urology, Asahikawa Medical College, Japan.
Int J Urol. 1996 Sep;3(5):379-82. doi: 10.1111/j.1442-2042.1996.tb00557.x.
A new tactile sensor was developed for detecting hardness of living tissue by Omata et al. in 1992. This paper reports applicability of the sensor for evaluation of penile rigidity.
Nine patients from a group of 12 patients with penile erectile dysfunction were selected as subjects of this study. All patients agreed to artificial erection and monitoring of penile rigidity by a new tactile sensor and the Rigiscan system. The 9 patients selected all developed more than 1 cm circumferential expansion of the penis after an injection of smooth muscle relaxant into the corpus cavernosum. The sensor equipment consisted of a piezoelectric element that vibrated, and a pickup that detected vibration frequency. When the end of the sensor was pressed against a surface of the penis, the resonance frequency of the sensor changed and indicated rigidity of the organ. Rigidity of the penile shaft was simultaneously monitored with the sensor and the Rigiscan system before and after an injection of 40 mg papaverine or 20 micrograms prostaglandin E1. The sensor's measurements of rigidity were compared with those of Rigiscan.
Reproducibility of rigidity measured with the tactile sensor was satisfactory. Statistical analysis was made on 85 simultaneous pairs of rigidity values from the tactile sensor and Rigiscan. The analysis indicated significant correlation between the values.
The tactile sensor as well as Rigiscan will be of use for evaluating rigidity of the penis.
1992年大俣等人开发了一种用于检测活体组织硬度的新型触觉传感器。本文报告了该传感器在评估阴茎硬度方面的适用性。
从12名阴茎勃起功能障碍患者中选取9名作为本研究的对象。所有患者均同意通过新型触觉传感器和阴茎硬度扫描仪系统进行人工勃起及阴茎硬度监测。所选取的9名患者在向海绵体内注射平滑肌松弛剂后阴茎周长均有超过1厘米的扩张。传感器设备由一个振动的压电元件和一个检测振动频率的拾音器组成。当传感器末端压在阴茎表面时，传感器的共振频率会发生变化，从而显示该器官的硬度。在注射40毫克罂粟碱或20微克前列腺素E1前后，同时使用传感器和阴茎硬度扫描仪系统监测阴茎杆的硬度。将传感器测得的硬度与阴茎硬度扫描仪的测量结果进行比较。
用触觉传感器测得的硬度重现性良好。对来自触觉传感器和阴茎硬度扫描仪的85对同时测量的硬度值进行了统计分析。分析表明这些值之间存在显著相关性。
触觉传感器以及阴茎硬度扫描仪都可用于评估阴茎的硬度。
