Radiopaque polyurethane resin compositions

Details Radiopaque polyurethane resin compositions Radiopaque polyurethane resin compositions

1979-12-28

1981-08-11

Wong, Jr., Harry

Surgery

Truss

Pad

A61M 2500

Patent

active

042828767

ABSTRACT:
Radiopaque compositions are provided by formulating polyurethane resins, alone, or combined with vinyl resins, with alkyl or alkoxyalkyl 2,5-diiodobenzoates, 2,3,4,6-tetraiodobenzoates or mixtures thereof. The compositions are useful in the manufacture of X-ray opaque medical devices, particularly medical surgical tubing. Surgical tubing with excellent plastic memory is provided, well adapted to forming flares and curved tips necessary for selective renal and celial arteriography. Multi-wall and co-tapered multiwall tubing constructions are also disclosed.

REFERENCES:
patent: 3356650 (1967-12-01), McElroy
patent: 3361700 (1968-01-01), Archer et al.
patent: 3489723 (1970-01-01), Kraft
patent: 3645955 (1972-02-01), Flynn
patent: 3752617 (1973-08-01), Burlis et al.
Encyclopedia of Polymer Science & Technology, vol. 11, pp. 506-563, N.Y. Interscience, Publ. (1969).

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