Figure 1: Instructions for assembling catheter and urethra
a) shows the materials needed to assemble the catheter and penile shaft at home. The tubes have two different diameters.
b) The catheter can be assembled at home with a tube, a balloon and adhesive tape. To test if the catheter is leak-proof, it is blocked with a disposable syringe filled with water.
c) For the simulated penis shaft, the tube (larger diameter than catheter) is wrapped with a tea towel and this is fixed with adhesive tape.