An apparatus for use as a catheter, a guidewire, a catheter sheath for use with catheter introducers or a drug infusion catheter/guidewire. The apparatus includes a flexible tubular member with an encasing covering the tubular member that creates a fluid-tight seal around the periphery of the tubular...http://www.google.es/patents/US5573520?utm_source=gb-gplus-sharePatente US5573520 - Flexible tubular device for use in medical applications
Flexible tubular device for use in medical applications