Mackworth | Elm Semi-Disposable Patient SlingMackworth Elm Semi Disposable Patient Sling Affordable, Multi Use Sling for Infection Control and Safe Transfers The Mackworth Elm Semi Disposable Sling, available at Alto Med Supply, is designed for safe, hygienic patient transfers in environments where infection control is a priority. Ideal for single patient use, this semi disposable sling supports up to 25 washes at recommended temperatures, offering a balance between reusability and cleanliness.