| 摘要 |
A hub ( 14 ) for a triple lumen catheter ( 12 ) especially for use with a catheter assembly ( 10 ) such as for hemodialysis. The hub ( 14 ) has a body ( 40 ) with one distal opening ( 58 ) for insertion thereinto of a proximal end portion ( 26 ) of the catheter ( 12 ), and three proximal openings ( 52,54,56 ) for insertion thereinto of distal end portions ( 74,76,78 ) of three extension tubes ( 16,18,20 ) each associated with one of the catheter's three lumens ( 30,32,34 ). The hub provides three passageways ( 68,70,72 ) extending from respective proximal openings to respective interior openings ( 60,62,64 ) in communication with the one distal opening ( 58 ), for establishing fluid communication between each extension tube ( 16,18,20 ) and its associated catheter lumen ( 30,32,34 ). Preferably, the hub is insert molded to respective end portions of the catheter ( 12 ) and the extension tubes ( 16,18,20 ).
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