Coating for medical insertion guides
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United States of America Patent
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-
Aug 22, 1995
Issued Date -
N/A
app pub date -
Dec 7, 1994
filing date -
Jun 18, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved guide for a medical insertion device includes a core, a jacket of hydrophobic polymer surrounding the core, and a mixture of hydrophobic and hydrophilic polymer coated onto the jacket. The hydrophobic polymer of the coating is the same as or compatible with the hydrophobic polymer of the jacket, resulting in improved bonding between the jacket and coating. The hydrophilic polymer of the coating provides a slippery surface which facilitates insertion of the device into a vein or other organ. The hydrophilic polymer has reduced tendency to leach or dissolve away, because it is ensnared with the hydrophobic polymer of the coating.
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