| http://www.w3.org/ns/prov#value | - Preferred forms of the invention are illustrated in the accompanying drawings in which: FIG. 1 is a side elevation of the leading end of a first form of catheter tube in a suitable condition for insertion, FIG. 2 is a side elevation of the catheter inserted into the bladder with the location balloon inflated to hold the catheter in place in the bladder, FIG. 3 is an enlarged view in section on the
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