ヒト精子細胞の運動軌跡 -精子運動軌跡図- の描記法(予報)

Abstract

In order to obtain an objective and permanent record of motility of human spermatozoa, a spermatozoon was followed under a microscope and its movement was traced on paper. Instruments for recording spermatozoal movement consisted of a phase-contrast microscope, a camera head, a camera control unit, an X-Y tracker, a TV monitor and an X-Y recorder. These are assembled as illustrated in Fig's. 1 and 2. The X-Y tracker, one of the most important instruments in this system, was devised for use in aeronautics or architecture, such as to monitor the orbit of a rocket, to measure the sway of skyscrapers to predict when it might crumble down during an earthquake and to measure the sway of a big bridge to determine whether it would hold during a storm. In the spermatozoal trackogram the spermatozoon progressed in a roughly straight line in a sine curve, and at times in a rectangular wave (Fig. 2 to 5). The speed of spermatozoa movement in the X and Y directions can be immediately and automatically calculated if a computer is connected to this system. The system will be useful for recording the movement of a single free cell.