Catheter assembly and method of catheter insertion
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United States of America Patent
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Issued Date -
Aug 12, 2004
app pub date -
Jan 23, 2004
filing date -
Jan 24, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A catheter and stylet assembly in one form of the invention includes a catheter sub-assembly, a primary stylet sub-assembly and a secondary stylet sub-assembly. The dual stylet assembly facilitates individual manipulation of the stylets to vary catheter tube stiffness as the tube is inserted through the patient's nose, stomach and duodenum into the jejunum by a method of the invention. A catheter stylet and guide wire assembly in another form of the invention includes a catheter sub-assembly, a stylet sub-assembly and a guide wire. Guide wire and stylet manipulation faulitates varying catheter tube stiffness to obtain similar results. A section of the catheter tube may be normally coiled, whereby it can be straightened for insertion into the jejunum and then permitted to uncoil in the jejunum where it serves as a peristalsis-aided anchor for the tube tip.
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