Dual-profile steerable catheter

Details Dual-profile steerable catheter Dual-profile steerable catheter

2005-12-20

2005-12-20

Peffley, Michael (Department: 3739)

Surgery

Instruments

Electrical application

C604S095040, C600S585000

Reexamination Certificate

active

06976987

ABSTRACT:
A catheter includes a steering mechanism for manipulating the distal end of the catheter to obtain a plurality of deflection profiles. The steering mechanism comprises two steering tendons. The first steering tendon is attached to the distal-end region and the second steering tendon is attached to the distal-end region at a location proximal the attachment point of the first steering tendon. The steering tendons may be located approximately angularly aligned, thus causing the deflection profiles to be unidirectional. Alternatively, the steering tendons may be angularly separated from each other, thus causing the deflection profiles to be bidirectional. The steering tendons are attached so that moving the first steering tendon in a proximal direction causes the distal-end region to deflect in a tight loop, whereas moving the second steering tendon in a proximal direction causes the distal-end region to deflect in a U-shape.

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Grafton A. Smith, M.D. and Edwin L. Brackney, M.D., “Preliminary Report on a New Method of Intestinal Intubation with the Aid of a Flexible Stylet with Controllable Tip,” Dept. of Surgery, University of Minnesota Medical School, vol. 27, #6, Jun. 1950, pp. 817-821.

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