Composite walled surgical/medical tubing - for wound drainage catheters etc with one layer of hard matrial in wall

Abstract

Abstract The wall of the tubing has >=2 layers and either the innermost or the outermost layer is of material harder than the others, >=1 of the layers is esp. of material opaque to X-rays. A coiled or spiral wound layer of hard plastics material may be embedded between an internal and an external layer. >=1 layer is of natural latex rubber and >=1 of natural latex compounded with styrene-butadiene. Esp. suitable for catheterisation due to prevention of ballooning and ease of introduction without a guide pin.

Inventors

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