Catheter tube
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United States of America Patent
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N/A
Issued Date -
Dec 15, 2005
app pub date -
Nov 8, 2004
filing date -
May 8, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a catheter tube for local anaesthetic with improved characteristics in terms of resistance to kinking, a higher degree of rigidity during application and reduced rigidity after application. According to the invention, said characteristics are achieved by designing the catheter tube as a layered composite tube, whereby the interior that faces the lumen consists of a polyamide layer and the exterior consists of a polyurethane layer. The layer thickness distribution of the polyamide inner layer to the polyurethane outer layer is preferably between 50:50 and 70:30. The inner and outer layers of the inventive catheter tube can be provided with one or more radiopaque strips.
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