| 摘要 |
<p>The present invention concerns a device for preventing or relieving pain in the lower back of a human subject, the device being configured for use while the subject lies in a supine position on an underlying surface, the device comprising:
(i) at least one body-engaging element configured for engaging the rear surface of the knee of a subject; and
(ii) a drive mechanism mechanically linked to said at least one body-engaging element, said drive mechanism being configured to move said engaging element.
a tensioning portion having a primarily vertical lifting motion followed by a primarily horizontal tensioning motion to thereby apply tension to the lower back of the subject.</p> |
