| 摘要 |
In an angioscope for observing the condition of a blood vessel, a microscope comprises an optical system for forming a blood vessel or vascular image illuminated by a reflecting illumination device on a camera tube; a monitor device for magnifying and projecting the vascular image formed on the camera tube onto the screen of a television receiver by known magnification; a size measuring means for projecting on the screen of the monitor a size measuring index with magnification proportional to the magnification of the vascular image by utilizing the steps of superimposing the index upon the vascular image projected on the screen of the television monitor, relatively displacing the index from the vascular image, and measuring a size of a blood vessel from a size of the index and the magnification; and/or a flow rate arithmetic monitor device for calculating a flow rate of the blood flowing through the blood vessel by detecting the time required for movement of a red blood cell in the blood vessel projected on the screen of the television monitor over a predetermined distance on the screen of the television monitor.
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