Medical-surgical catheter

Details Medical-surgical catheter Medical-surgical catheter

1985-08-19

1987-04-14

Pellegrino, Stephen C.

Surgery

Truss

Pad

604280, 138118, A61M 2500

Patent

active

046570241

ABSTRACT:
A medical-surgical catheter comprising an extruded tube of flexible material including a plastic material transparent to X-ray radiation and defining the entire interior and exterior surfaces of the tube to provide smooth surfaces of low coefficient of friction and a integrally extruded radiopaque layer completely embedded within and surrounded by the plastic material and extending along the tube between the ends thereof. The radiopaque layer comprises a blended mixture of radiopaque material and the plastic material with the blended mixture of the layer completely surrounded by a pure composition of the plastic material. The radiopaque layer may comprise an annular tube with an outer annular layer of the plastic material and an inner annular layer of the plastic material or the radiopaque layer may comprise a pair of diametrically opposed strips or the radiopaque layer may comprise a plurality of circumferentially spaced strips extending in a helical path along the tube.

REFERENCES:
patent: 2857915 (1958-10-01), Sheridan
patent: 3070132 (1962-12-01), Sheridan
patent: 3529633 (1970-09-01), Vaillancourt
patent: 3605750 (1971-09-01), Sheridan et al.
patent: 3608555 (1971-09-01), Greyson
patent: 4027659 (1977-06-01), Slinghuff
patent: 4277432 (1981-07-01), Woinowski

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