Mosse C A, Mills T N, Bell G D, Swain C P
Department of Medical Physics, University College London, UK.
Med Biol Eng Comput. 1998 Mar;36(2):186-90. doi: 10.1007/BF02510741.
Colonoscopy involves advancing a flexible endoscope into and along the entire length of the colon. The procedure can be painful and carries the risk of perforating the organ, yet very little is known of the forces involved. A device to measure the forces exerted on the endoscope during colonoscopy is described. The device features a handle designed in the shape of a hinged split cylinder that locks around the endoscope, gripping it tightly. The handle has two parts, an inner part that grips the endoscope, and an outer part that is gripped by the endoscopist. The two parts are joined together by members that transmit the forces through to the endoscope. One of the members incorporates strain gauges that measure the torque applied to the endoscope, as well as the push and pull forces. The handle can easily be unlocked and moved along the endoscope as the colonoscopy proceeds. The device is used to measure the forces applied to the endoscope during 11 routine colonoscopies, and summary results are presented. These are believed to be the first accurate measurements of the forces exerted during colonoscopy.
结肠镜检查需要将一根可弯曲的内窥镜插入结肠并沿着其全长推进。该操作可能会很痛苦，并且存在器官穿孔的风险，但对于其中涉及的力却知之甚少。本文描述了一种用于测量结肠镜检查过程中施加在内窥镜上的力的装置。该装置的特点是有一个设计成铰接式开口圆柱体形状的手柄，它能围绕内窥镜锁定，紧紧地夹住它。手柄有两部分，一部分是夹住内窥镜的内部，另一部分是供内镜医师握持的外部。这两部分通过将力传递到内窥镜的部件连接在一起。其中一个部件装有应变片，可测量施加在内窥镜上的扭矩以及推拉作用力。随着结肠镜检查的进行，手柄可以轻松解锁并沿着内窥镜移动。该装置用于测量11例常规结肠镜检查过程中施加在内窥镜上的力，并给出了汇总结果。据信这些是对结肠镜检查过程中施加的力的首次精确测量。
