| 摘要 |
<p>A medical demonstration apparatus (1) adapted for indicating cardiac exertion. The apparatus (1) comprises an elastically and recoverably deformable hollow bulb (3) in the shape of a heart. The bulb (3) is connected via a connector (4) and tube (5) to a manometer (2) which is used to indicate blood pressure. The bulb (3) is able to be squeezed to indicate the cardiac exertion required to reach a predetermined pressure as indicated on the manometer (2).</p> |
