Cold Therapy Ice Machine

A cold therapy ice machine circulates chilled water through a pad to provide extended cooling after surgery. Use only if it is part of your surgeon's prescribed recovery plan.

Prepared by Recovery ReadyRecovery Ready— physical therapists with 30+ years of experience helping patients prepare for and optimally recover from surgery.

Last reviewed: 2026-06-12

Important considerations

  • Do not use without training from your surgical team or home health nurse.
  • Stop if skin becomes pale, hardened, or painful numb.
  • Avoid using on areas with poor sensation or open wounds unless specifically cleared.
  • Follow electrical and water safety instructions; keep cords away from wet floors.

How to use

  1. Set up the unit on a stable surface near an outlet as instructed in your device guide.
  2. Fill with ice and water to the marked levels before connecting the pad.
  3. Place the pad around the surgical area with barriers as your care team directed.
  4. Turn on the machine and set timer or flow to prescribed settings only.
  5. End sessions when your schedule says to, and disconnect before sleep unless told otherwise.
  6. Drain and clean the unit per instructions between uses.

Tips & tricks

  • Keep tubing flat to avoid kinks that block flow.
  • Check skin every few minutes during early sessions.
  • Have extra ice ready if your protocol uses long sessions.
  • Store pads clean and dry to prevent odor and mildew.

Good to know

  • Motorized cold therapy can deliver consistent cooling without frequent ice pack swaps.
  • It is commonly used after ACL reconstruction, knee replacement, and some shoulder surgeries.
  • Your team will tell you when to transition to standard ice packs or stop cold therapy.

Frequently asked questions

How long should I run the ice machine each day?

Follow the hours-per-day and session length on your surgical protocol. Do not exceed what your surgeon or PT prescribed.

Can I sleep with the cold therapy machine on?

Only if your care team explicitly approves overnight use. Many protocols require awake monitoring during sessions.

How long should I run the ice machine each day?

Follow the hours-per-day and session length on your surgical protocol. Do not exceed what your surgeon or PT prescribed.

Can I sleep with the cold therapy machine on?

Only if your care team explicitly approves overnight use. Many protocols require awake monitoring during sessions.

Prepared by Recovery Ready — physical therapists with 30+ years of experience helping patients prepare for and optimally recover from surgery

Patient education only — not medical advice. Always follow your surgeon and physical therapist instructions.