Extended fenestration catheter with internal coil and method of making the same
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United States of America Patent
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Issued Date -
Dec 23, 2004
app pub date -
Jun 17, 2004
filing date -
Jun 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A catheter for delivering medication from a fluid source to an anatomical site of a patient and a method of manufacturing the same are provided. The catheter comprises an elongated tube extending between an open proximal end and a closed distal end. The elongated tube includes a catheter wall having an inner surface that bounds a lumen for conveying the fluid from the fluid source. A plurality of openings are defined in the catheter wall to discharge the fluid from the lumen to the anatomical site. A reinforcing coil is disposed within the lumen to improve fluid delivery and provide kink resistance to the catheter. The reinforcing coil has spaced convolutions in an unstretched state. An annular flow space is defined between the reinforcing coil and the inner surface of the catheter wall. As a result, fluid can travel both through an inner lumen of the reinforcing coil and between the spaced convolutions to the annular flow space or the fluid can travel directly through the annular flow space to reach the openings.
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