Process for extruding green polyglycolic acid sutures and surgic

Details Process for extruding green polyglycolic acid sutures and surgic Process for extruding green polyglycolic acid sutures and surgic

1972-08-03

1977-02-15

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

1283355, 264211, D01D 512

Patent

active

040083039

ABSTRACT:
Polyglycolic acid surgical elements, particularly sutures, are colored green to contrast with tissue, blood, and surroundings by extruding while melted the polyglycolic acid and concurrently in an optically homogeneous dispersion, from about 0.03% to 0.5% by weight of 1,4-bis(p-toluidino)-anthraquinone (D&C Green No. 6).

REFERENCES:
patent: 2909177 (1959-10-01), Dowd et al.
patent: 3297033 (1967-01-01), Schmitt et al.
patent: 3487041 (1969-12-01), Okuzumi
patent: 3636956 (1972-01-01), Schneider

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