Canales Benjamin K, Gleason Joseph M, Hicks Nathan, Monga Manoj
Department of Urologic Surgery, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Urology. 2007 Jul;70(1):11-5. doi: 10.1016/j.urology.2007.02.065.
To conduct a systematic review of repairs of Olympus flexible ureteroscopes using an independent database to compare and contrast with the published data obtained from ureteroscope manufacturers.
The repair data from 2000 to 2004 were extracted from a computer database obtained through Precision Endoscopy of America, an independent endoscope repair company. All endoscopes submitted for repair underwent a detailed 16 to 32-point inspection using a set protocol for each endoscope make and model, as determined by the manufacturer.
A total of 341 repairs were performed on the Olympus URF-P (4%), URF-P2 (47%), and URF-P3 (47%) flexible ureteroscopes. The distal segment was the most common repair site requiring repair (30%), with 87% of these repairs requiring replacement of the bending rubber. The repairs also included the deflection apparatus (14%) and hand control segment (9%) and image-related repairs (9%). The between-group assessment showed a statistically significant decrease in deflection apparatus repairs for the URF-P2 (20%) compared with the URF-P3 (7%; P <0.001, chi-square = 11.96).
The results of our study have shown that the loss of deflection is less common with the newer Olympus ureteroscopes. The distal deflection tip, specifically the outer bending rubber, is the most common site of damage to Olympus flexible ureteroscopes. Improvements in form and function of the distal tip should decrease the maintenance expenses and increase ureteroscope longevity.
利用独立数据库对奥林巴斯软性输尿管镜的维修情况进行系统评价，以便与输尿管镜制造商公布的数据进行比较和对比。
从美国精密内窥镜公司（一家独立的内窥镜维修公司）获取的计算机数据库中提取2000年至2004年的维修数据。所有送检维修的内窥镜均按照制造商确定的针对每种内窥镜型号的固定方案进行详细的16至32点检查。
共对奥林巴斯URF-P（4%）、URF-P2（47%）和URF-P3（47%）软性输尿管镜进行了341次维修。远端部分是最常见的需要维修的部位（30%），其中87%的此类维修需要更换弯曲橡胶。维修还包括偏转装置（14%）、手动控制部分（9%）以及与图像相关的维修（9%）。组间评估显示，与URF-P3（7%）相比，URF-P2的偏转装置维修次数有统计学意义的减少（20%；P<0.001，卡方=11.96）。
我们的研究结果表明，新型奥林巴斯输尿管镜的偏转功能丧失情况较少见。远端偏转尖端，特别是外部弯曲橡胶，是奥林巴斯软性输尿管镜最常见的损坏部位。改进远端尖端的形状和功能应能降低维修费用并延长输尿管镜的使用寿命。
