| 摘要 |
<p>A seal trocar assembly comprising: a housing including an upper housing member (114) and a lower housing member (116), each of the housing members defining a throughbore, the upper hosing member throughbore and the lower housing member throughbore defining an opening dimensioned to allow passage of an elongated surgical instrument; a seal member (118, 218) having a body defining an aperture, the seal member being positioned within a cavity defined between the upper and lower housing, the body of the seal member including at least one layer of fabric (128, 228); a two part ring assembly including upper and lower ring members (120, 122), each ring member including engaging structure configured to lockingly engage with respective structure formed on the other ring member, the seal member being supported between the upper and lower ring members; a search clamp (124) defining a throughbore and being attached to the lower housing member, the seal clamp having a first end facing the upper housing member and a second end; and a lower seal (126) supported between the second end of the seal clamp and the lower housing member. <IMAGE></p> |
