| 摘要 |
PCT No. PCT/IL97/00171 Sec. 371 Date Dec. 9, 1998 Sec. 102(e) Date Dec. 9, 1998 PCT Filed May 29, 1997 PCT Pub. No. WO97/47247 PCT Pub. Date Dec. 18, 1997A surgical sealing sleeve (1, 32) for preventing undesirable leakage from the humoral fluid filled interior of a mammal organ to an access environment during its temporary seating in an access tissue to the mammal organ. The surgical sealing sleeve (1, 32) has an axially extending rigid tubular sleeve (2) for attachment to the access tissue and having an axially extending passageway (5). The sleeve (2) includes an inner sleeve member (3, 33) nested at least along a portion of its length within an outer sleeve member (4). Each of the inner and outer sleeve members has a proximal end and a distal end, the inner sleeve member (3, 33) having at least one distally directed sheath support member 9(A and 9B, 34) terminating proximal to the distal end of the outer sleeve member. An elastomeric sheath (10) is sealingly interdisposed between the inner and outer sleeve members and distally extending so as to fit over the at least one sheath support member, the elastomeric sheath having an initially sealed end adapted to be cut in situ so as to provide an undirectional slit valve (13A and 13B, 38, normally closed under the pressure prevailing in the mammal organ's interior so as to prevent leakage of its contents therefrom via the passageway to the access environment. |
