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. Author manuscript; available in PMC: 2010 Oct 25.
Published in final edited form as: Nat Protoc. 2009 Jul 30;4(8):1230–1243. doi: 10.1038/nprot.2009.116

Figure 6.

Figure 6

Urinary catheter. Urinary catheters are made out of polyethylene tubing on a 30-G hypodermic needle. An unused catheter (a) has extra tubing hanging off the end of the needle. The extra tubing is cut off near the bevel of the needle right before use (b).