A hydrophobic drag-reducing coating for a silicone rubber intestinal obstruction catheter

The insertion of a silicone intestinal obstruction catheter is a common and effective approach for managing an acute surgical abdomen. However, patients often experience significant nasopharyngeal discomfort and pain during both catheter placement and prolonged indwelling. To reduce insertion difficulty, patient discomfort and the risk of microbial infection, we developed a straightforward fabrication method to produce an epoxy‑polydimethylsiloxane (EP/PDMS)–nSiO2 coating. Experimental results d