Catheter device

Details Catheter device Catheter device

2005-01-21

2009-08-25

Lucchesi, Nicholas D (Department: 3763)

Surgery

Endoscope

Having flexible tube structure

C604S095030, C604S525000, C604S528000, C600S144000, C600S145000

Reexamination Certificate

active

07578787

ABSTRACT:
Catheter device, comprising a catheter (2) for introduction into a hollow organ, especially a vessel, with a number of bending elements (12, 12a-12f,12a′-12e′) arranged around the longitudinal axis of the catheter and distributed over at least a part of the catheter length, which can be activated separately for a specified change of shape via a control device (5), as well as a number of bending sensors (15, 15a-15e,15a′-15e′) arranged around the longitudinal axis of the catheter and distributed over at least a part of the catheter length communicating with a control device (5), with the control device (5) being embodied to determine the given geometrical shape of the catheter (2) on the basis of the bending sensor signals and to determine the change of shape of the bending elements (12, 12a-12f,12a′-12e′) necessary for a movement of the catheter (2) by a forward movement length preferably specifiable on the user side to enable the catheter (2) to move by itself at least in part, by explicit bend-dependent force application to the wall of the organ (16).

REFERENCES:
patent: 4292961 (1981-10-01), Kawashima
patent: 5662587 (1997-09-01), Grundfest et al.
patent: 6468203 (2002-10-01), Belson
patent: 2003/0065250 (2003-04-01), Chiel et al.
patent: 2004/0068161 (2004-04-01), Couvillon, Jr.
patent: 2004/0147837 (2004-07-01), Macaulay et al.

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