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在重建听力传导手术中,术者常需在手术显微镜下测量中耳和外耳道内的距离和面积,由于肉眼和镜下视野的限制和比例的差异,观察起来较困难。过去一些学者曾设制了一些器械,但不能用于与视线方向平行的测量。本文介绍的办法既可用于与视线方向平行的测量,又可测量有限空间的宽度。即使用略带弹性(可常规消毒灭菌)的硅织格网,在显微镜下将其剪成大小适宜的梯形,放在测定部位,数好格网的阶梯数目以决定移植物的确实长度和面积大小。此法可用于
In reconstructive hearing transfer surgery, surgeons often need to measure the distance and area within the middle ear and external auditory meatus under a surgical microscope, which is difficult to observe due to limitations and proportions of the macroscopic and microscopic views. Some scholars have in the past set up a number of instruments, but can not be used for measuring parallel to the direction of line of sight. This article describes the method can be used both for measuring the direction of line of sight, but also measure the width of the limited space. Even with a slightly elastic (which can be routine disinfection and sterilization) of silicon woven mesh, under the microscope cut into the size of the trapezoidal, on the determination of the site, the number of mesh grid to determine the number of the exact length and area size. This method can be used