| 摘要 |
The invention relates to an expandable conduit-guide ( 1 ) providing a leak-tight conduit through a skin ( 3 ) between an inside of a corpus ( 2 ) and an outside of the corpus ( 2 ). Said conduit-guide ( 1 ) includes a body ( 100 ) encompassing a lumen ( 110 ) extending essentially axially along a center-line ( 120 ), and has a distal-end ( 130 ) to be positioned outside of the corpus ( 2 ), and a proximal-end ( 140 ) to be positioned inside of the corpus ( 2 ), so that a medical device ( 4 ) can be placed in and passed through the lumen ( 110 ) between the distal-end ( 130 ) and the proximal-end ( 140 ). The body ( 100 ) of the conduit-guide ( 1 ) is constructed from a braided-wire ( 150 ) so that the conduit-guide ( 1 ) is capable of actively expanding from a closed diameter (D 1 ) to an opened diameter (D 2 ) with the placement of the medical device ( 4 ) positioned within the lumen ( 1 10 ) and passively collapsing from the opened diameter (D 2 ) to the closed diameter (D 1 ) upon withdrawal of the medical device ( 4 ) under a spring load of the braided-wire ( 150 ). The invention is also related to a catheter-sheath ( 8 ) and a catheter-sheath-assembly ( 800 ) as well as to a method for applying and positioning an expandable conduit-guide ( 1 ), catheter-sheath ( 8 ) and a catheter-sheath-assembly ( 800 ) in accordance with the present invention.
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