Optical catheter with stranded fibers

Details Optical catheter with stranded fibers Optical catheter with stranded fibers

1993-09-20

1995-05-16

Aschenbrenner, Peter A.

Surgery

Instruments

Light application

606 15, A61B 1736

Patent

active

054156530

ABSTRACT:
A catheter having an axis extending between a proximal end and an opposing distal end includes a plurality of optical fibers arranged to spiral in a first direction to form a circumferential layer around the axis. Rotation of the catheter in the first direction tends to expand the layer while rotation of the catheter in a second opposite direction tends to contract the circumferential layer. An outer jacket limits the expansion of the circumferential layer while an inner core limits the contraction of the circumferential layer to increase torquability of the catheter. The stranded fibers equalize bending stresses to maintain a circular cross-sectional configuration, increase flexibility and a reduced diameter for the catheter.

REFERENCES:
patent: 3498286 (1966-09-01), Polanyi et al.
patent: 4681104 (1987-07-01), Edelman
patent: 4690175 (1987-09-01), Ouchi et al.
patent: 4969709 (1990-11-01), Sogawa et al.
patent: 5147317 (1992-09-01), Shank et al.

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