Multiple sheath catheter using multiple stages and method of use
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United States of America Patent
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Aug 31, 1999
Grant Date -
N/A
app pub date -
Sep 30, 1997
filing date -
Sep 30, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiple sheath catheter is provided for placing an IV catheter or other medical instrument into a blood vessel of a patient. The multiple sheath catheter includes a first stage catheter having a distal end for introducing into a blood vessel, a proximal end, and an internal lumen between the distal and proximal ends. Disposed lengthwise within the lumen of the first stage catheter is a needle for piercing a blood vessel of a patient. The device uses a small diameter needle to gain venous access, thereby reducing the probability of failure. The multiple sheath catheter also includes a second stage catheter or introducer.
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