Catheter with an expandable end portion
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United States of America Patent
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-
Aug 22, 2006
Grant Date -
Apr 15, 2004
app pub date -
Mar 7, 2003
filing date -
Jan 28, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A catheter (2) is used in medical applications, for example for the retrieval of a sample from a patient or the insertion or retrieval of medical devices such as filters, stents (3) to and from the patient. The catheter (2) includes an expandable tip (6) at a leading portion of a catheter tube portion (5). This expandable tip (6) can retrieve or deliver samples, medical devices, etc. (3), which are slightly larger than the dimensions of a main catheter tube (5) inserted into the patient. The expandable tip (6) can also include extension members (10) which provide axial support to the expandable tip (6) but which still allow expansion in the radial direction.
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