Guiding catheter

Details Guiding catheter Guiding catheter

1987-07-13

1989-04-04

Pellegrino, Stephen C.

Surgery

Truss

Pad

604282, 138127, 87 6, 87 8, A61M 2500

Patent

active

048176133

ABSTRACT:
A torque transmitting guiding catheter adapted for insertion into vascular vessels with a body and a method for its construction is disclosed. The guiding catheter includes a flexible tubular member surrounded by a pair of torque transmitting layers that are formed of a flat braided material. A flexible (plastic) casing that initially is applied as a viscous material impregnates and encases the torque transmitting layer to hold them in place and eliminate their rough edges. The ends of the torque transmitting layers are soldered using a radiopaque solder to enhance the catheter's visibility within a body. The tubular member is also folded about the distal end of the catheter over the distal extremity of at least one of the torque transmitting layers to provide a smooth and soft distal catheter tip. The formed catheter has a flexible curving distal tip. The tip's shape memory is enhanced by at least partially curing the casing material while the tip takes the form of its desired final shape.

REFERENCES:
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patent: 2472484 (1949-06-01), Krippendorf
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patent: 4200126 (1980-04-01), Fish
patent: 4425919 (1984-01-01), Alston, Jr. et al.
patent: 4586923 (1986-05-01), Gould et al.
Cook, Inc. Radiology, Cardiology, & Surgery Catalog, (1982-84).

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