| 摘要 |
<p>An adjustable surgical wound retractor (10) having outer and inner resilient rings (14, 16) connected together by a flexible sleeve (18). The outer ring (14) may be rolled down onto the sleeve (18) for coarse adjustment of the sleeve (18) length suitable for initial installation in an incision. A lifter (20) interposed between the outer surface around the incision and the outer ring (14) provides a fine adjustment. The lifter (20) may be actuated pneumatically or mechanically.</p> |
