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1. (WO2018041903) CATHETER TUBE

Pub. No.:    WO/2018/041903    International Application No.:    PCT/EP2017/071784
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Aug 31 01:59:59 CEST 2017
IPC: A61M 25/01
Applicants: RIOCATH MEDICAL DEVICES, A.S.
USTAV ORGANICKE CHEMIE A BIOCHEMIE AV CR, V.V.I.
Inventors: POKORNY, Vit
SVOBODA, Miroslav
Title: CATHETER TUBE
Abstract:
The present invention relates to a catheter, which comprises a catheter tube everting inside-out during the process of catheterization. A catheter tube comprises a plurality of longitudinal protrusions extending from the first end of the catheter tube through at least a portion of the catheter tube, and forming an angle of 0 degrees to 45 degrees with respect to the longitudinal axis of the catheter tube and facing radially inwards, and means for dilating a circumference of the catheter tube upon everting the catheter tube inside-out from the first end of the catheter tube. The longitudinal protrusions ensure the axial reinforcement of the catheter tube, which prevents the tube from collapsing and bending under the axial force and the resistance of the fold and of the friction between the everted portion and the corresponding underlying portion of the tube. The dilating means dilate the circumference of the catheter tube in the everted region, thus reducing the resistance of the fold and of the friction between the everted portion and the corresponding underlying portion of the tube.