Catheter and method for manufacturing the same

For manufacturing a catheter having an inner tube (2) forming a first lumen and an outer tube (2) arranged coaxially with the inner tube (2), a second lumen being formed between the inner tube (2) and the outer tube (3), a mandrel (51) is inserted for retaining the first lumen into the inner tube (2...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: TAKAFUMI, SUMINO, NORIYUKI, ICHIKAWA
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:For manufacturing a catheter having an inner tube (2) forming a first lumen and an outer tube (2) arranged coaxially with the inner tube (2), a second lumen being formed between the inner tube (2) and the outer tube (3), a mandrel (51) is inserted for retaining the first lumen into the inner tube (2), and an ultrasonic horn (52) is applied to the outer surface of the outer tube (3) for oscillating ultrasonic waves, thereby fusion bonding the inner surface of the outer tube (3) to the outer surface of the inner tube (2). The particular method permits easily bonding the inner tube (2) and the outer tube (3) to each other. Also, since thermal deformation is small, it is possible to manufacture a catheter, in which the obstacle to the inflow of the inflation fluid into the inflatable member is very small, and which exhibits a rapid response to inflation and deflation of the inflatable member (4).