Elastomeric bladders for medical infusers

Details Elastomeric bladders for medical infusers Elastomeric bladders for medical infusers

1988-07-21

1990-07-03

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

128DIG12, A61M 3700

Patent

active

049387510

ABSTRACT:
Elastomeric bladders having improved resistance to spontaneous rupture when inflated are made by vulcanizing a homogeneous mixture of synthetic polyisoprene having 90% to 98% cis-1,4 linkages, 3 to 10 phr fumed silicon dioxide, and vulcanizing agent while simultaneously forming the mixture into hollow cylindrical bodies. After being formed the bodies are solvent extracted to remove unreacted vulcanizing agent and the degradation products of the vulcanizing agent. Following the solvent extraction about 0.2 to 2 phr of a nontoxic, nonleachable antioxidant are imbibed into the bodies by contacting the bodies with a liquid solution of the antioxidant.

REFERENCES:
patent: 3993069 (1976-11-01), Buckles et al.
patent: 4140117 (1979-02-01), Buckles et al.
patent: 4201207 (1980-05-01), Buckles et al.
patent: 4386929 (1983-06-01), Peery et al.
patent: 4419096 (1983-12-01), Leeper et al.
"Cab-O-Sil.RTM. Properties and Functions", Cabot Corporation, 1977, front and back covers, pp. 2, 11 and 30.
Materials and Compounding Ingredients for Rubber, Bill Communications, Inc. 1975, p. 122.
"`Ethyl` Antioxidant 330", Ethyl Corporation, front cover and p. 1.
The Vanderbilt Rubber Handbook, R. T. Vanderbilt Co., Inc. 1978, pp. 8-13.
Concise Encyclopedia of Chemical Technology, Wiley Interscience, pp. 1031-1036.

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