What role does friction play in the manual cleaning of endoscopes?

Friction is a critical component in the manual cleaning process of endoscopes, especially when using brushes. When a brush is applied to the surface of an endoscope, the bristles create friction against the surfaces being cleaned. This mechanical action helps dislodge debris, soil, and biofilm that may be adhered to the endoscope’s channels and lumens.

The effectiveness of the cleaning process is significantly enhanced by this interaction, as friction assists in physically removing contaminants that detergents alone may not eliminate. Without the application of friction, residues could remain, risking the potential for infection or cross-contamination in subsequent procedures.

While there are elements of cleaning techniques—such as the use of detergents or specific tools—that can be subject to limitations or considerations, the role of friction in improving the efficacy of manual cleaning through brushing is essential for ensuring that endoscopes are adequately cleaned and safe for patient use.