ALBRECHT, JEREMY J.,NGUYEN, ERIC,BECERRA, MATTHEW M.,JOHNSON, GARY M.,BRUSTAD, JOHN R.,SAKAKINE, GHASSAN
申请号：
CA2771337
公开号：
CA2771337C
申请日:
2010.08.31
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
A surgical access system comprises a wound retractor comprising an outer anchor, an inner anchor, and a flexible, tubular sheath extending therebetween. Embodiments of the outer anchor comprise an outer ring rotatable around an annular axis thereof, thereby rolling the sheath therearound when retracting an incision or opening in a body wall. The sheath comprises a plurality of fibers or strands that improve the abrasion and puncture resistance thereof. Consequently, the surgical access system is useful in procedures in which damage to the sheath is likely, for example, orthopedic hip replacement, and spinal procedures. In some embodiments, the sheath tapers from the outer ring to the inner ring.
