| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical weight which achieves a reduction in the size and insulates external noise effectively. SOLUTION: Spherical small weights 24 made of steel are filled in a large cover 18 and small covers 22 for the medical weight 10. Because of the large density of steel, the size of the medical weight 10 hardly increases in spite of the appropriate weight required for the medical weight 10. Since a weight with a larger density is more effective to insulate the noise, the effect of insulating against the external noise transmitted to a cardiac sound sensor 28 through the medical weight 10 also increases. Because of the spherical small weights 24, the small weights 24 make a point contact mutually and move easily. Since the medical weight 10 changes the shape following to the shape of the cardiac sound sensor, a stable pressing state is obtained. Spaces formed in the large cover 18 and the small covers 22 due to the spherical weights 24 additionally insulate the external noise transmitted to the cardiac sound sensor 28 through the medical weight 10. COPYRIGHT: (C)2004,JPO
|
