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尽管小肠镜检查技术已取得了长足的进展,但在小肠疾病的检测上仍存在许多盲区与不足,部分患者对小肠镜的检查也难以耐受。2000年5月在美国举行的消化病周会议上,胶囊内镜的报告引起了消化内镜界极大的兴趣[1]。胶囊内镜又称M2A,由以色列 Given Imaging公司制造。它是一个尺寸为11mm×30mm药丸大小的无线肠镜,由电池、光源、成像系统和传送器等部件构成[1,2]。这种无创性的检查不仅能达到目前内镜普遍难以到达的小肠位置,而且可获得清晰的图像,为小肠疾病的诊断提供了新的方法。 一、仪器设备及原理 胶囊内镜的仪器设备包括进入人体的胶囊、外部接收和控制设备以及数据分析设备[3]。胶囊由电荷耦合照相机、微波发射器、天线、光源和电池构成;外部接收和控制设备由天线、彩色监视器、微波信号接收器、记录器和操纵杆构成;数据分析设备是装有RAPIDIM软件的计算机工作站。
Although the great progress has been made in the technology of enteroscopy, there are still many blind spots and deficiencies in the detection of small intestine diseases. Some patients are also hard to tolerate the examination of enteroscopy. In May 2000 in the United States held a conference on digestive disease, capsule endoscopy caused great interest in the digestive endoscopy community [1]. Capsule Endoscopy, also known as M2A, is manufactured by Given Imaging, Israel. It is a 11 mm × 30 mm pelvis-size, wireless colonoscopy consisting of batteries, light sources, imaging systems, and transmitters [1,2]. This noninvasive examination not only achieves the location of the small intestine that is currently difficult to reach by endoscopy, but also provides clear images that provide a new method for the diagnosis of small bowel disease. First, the equipment and principles Capsule endoscopy equipment, including access to the human body capsules, external receiving and control equipment and data analysis equipment [3]. The capsule consists of a charge-coupled camera, a microwave transmitter, an antenna, a light source and a battery; the external receiving and controlling device consists of an antenna, a color monitor, a microwave signal receiver, a recorder and a joystick; the data analysis device is equipped with RAPIDIM software Computer workstation.