| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide apparatus and methods for anchoring a cannula or other access member to a patient with minimum tissue trauma while still providing a positive seal. <P>SOLUTION: The apparatus includes an access assembly 10 that has a tubular member having a proximal end, a distal end, an elastic member interposed the proximal end and the distal end, and a lumen therethrough. An anchor sleeve 20 is disposed coaxially over the tubular member and has a radially expandable region. The anchor sleeve is moveable between an axially elongated configuration and an axially shortened configuration and is biased toward the axially shortened configuration by a force exerted by the elastic portion of the tubular member. <P>COPYRIGHT: (C)2012,JPO&INPIT |
