Rubber drainage tubing, catheters or the like with distensible bags and the manufacture thereof

Abstract

Abstract 693,224. Catheters. MULLER, R. H., and FRANKLIN & SONS, Ltd., J. G. July 13, 1951 [April 24, 1950], No. 10097/50. Class 81 (ii). In a balloon catheter the ends of the sleeve forming the balloon are secured by non-extensible bindings. Thus, in a case where an inflation tube 2 is set in a recess in the wall of the catheter tube 1 and a balloon sleeve 3 is drawn over them and cemented at its ends, the extent of the balloon is limited by bands of suitable thread 9 such as rayon, cotton or silk, the ends of which are secured by an adhesive. The whole catheter body is then covered with a further layer of rubber 8. If desired X-ray opaque material may be incorporated in the rubber. It is also proposed to form the balloon sac by a dipping process in which the short length of the catheter tube where the balloon is to be formed is treated with a substance to prevent adhesion of the additional coating so formed, suitable substances being soapstone in alcohol or a solution of bromine chlorine or sulphur chloride.

Inventors

No inventors recorded.

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