Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309, USA.
IEEE Trans Biomed Eng. 2010 May;57(5):1191-7. doi: 10.1109/TBME.2009.2037140. Epub 2010 Feb 5.
In this paper, we built and tested the port camera, a novel, inexpensive, portable, and battery-powered laparoscopic tool that integrates the components of a vision system with a cannula port. This new device 1) minimizes the invasiveness of laparoscopic surgery by combining a camera port and tool port; 2) reduces the cost of laparoscopic vision systems by integrating an inexpensive CMOS sensor and LED light source; and 3) enhances laparoscopic surgical procedures by mechanically coupling the camera, tool port, and liquid crystal display (LCD) screen to provide an on-patient visual display. The port camera video system was compared to two laparoscopic video systems: a standard resolution unit from Karl Storz (model 22220130) and a high definition unit from Stryker (model 1188HD). Brightness, contrast, hue, colorfulness, and sharpness were compared. The port camera video is superior to the Storz scope and approximately equivalent to the Stryker scope. An ex vivo study was conducted to measure the operative performance of the port camera. The results suggest that simulated tissue identification and biopsy acquisition with the port camera is as efficient as with a traditional laparoscopic system. The port camera was successfully used by a laparoscopic surgeon for exploratory surgery and liver biopsy during a porcine surgery, demonstrating initial surgical feasibility.
在本文中，我们构建并测试了端口相机，这是一种新颖、廉价、便携且电池供电的腹腔镜工具，它将视觉系统的组件与套管端口集成在一起。这个新设备 1）通过将摄像头端口和工具端口组合在一起，最大限度地减少了腹腔镜手术的侵入性；2）通过集成廉价的 CMOS 传感器和 LED 光源，降低了腹腔镜视觉系统的成本；3）通过机械地将摄像头、工具端口和液晶显示屏（LCD）连接起来，为患者提供直观的视觉显示，从而增强了腹腔镜手术程序。端口相机视频系统与两种腹腔镜视频系统进行了比较：来自 Karl Storz 的标准分辨率单元（型号 22220130）和来自 Stryker 的高清单元（型号 1188HD）。比较了亮度、对比度、色调、色彩度和锐度。端口相机视频优于 Storz 内窥镜，与 Stryker 内窥镜大致相当。进行了一项离体研究来测量端口相机的手术性能。结果表明，端口相机在模拟组织识别和活检采集方面的效率与传统腹腔镜系统相当。腹腔镜外科医生在猪手术中成功地使用端口相机进行了探查性手术和肝活检，初步证明了手术的可行性。
