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If silicone rubber catheters have a diameter less than 3.5mm, they become very flexible. How can they be passed successfully?

April 26, 2017catheters diameter flexible rubber silicone successfully

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If silicone rubber catheters have a diameter less than 3.5mm, they become very flexible. How can they be passed successfully?

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The smaller the passage into which the catheter is being passed, the less rigid the catheter needs to be. So, what is too flexible for an adult is ideal for a neonate. When a catheter is too flexible for a particular application, it can be stiffened to some degree with an implanted nickel-titanium wire or sometimes a removable guide-wire (FAQ 3).