Written and maintained by CASRAI Editorial Board
Last updated
This page describes products and general use; it is not medical advice.
A cryotherapy cuff is a wrap that delivers cold and intermittent or focal compression to a body region by circulating chilled water through a fluid-filled cuff. This guide is for clinic staff, buyers and students who need to understand what the product class is, how the two common system designs differ, and what the manufacturer’s own instructions say about safe handling. It traces each statement to the manufacturer’s instructions for use (IFU), a manufacturer patient sheet or the FDA device classification.
Who uses it: the Enovis (formerly DJO) IFU names a licensed medical professional, or the patient, a caretaker or a family member who can read and follow the instructions, as the intended user, for patients with swelling and pain after surgery or injury. The IFU also marks the device as prescription only.
What a cryotherapy cuff is
A cryotherapy cuff is a non-sterile, prescription, single-patient device that provides localized external cold therapy with compression. The Cryo/Cuff IC IFU (doc 13-1973 Rev G, 6 January 2022) states its intended use as the “temporary reduction of swelling and pain after surgery or injury” and says the system “provides cold and compression by exchanging chilled pressurized water between the cuff and the cooler intermittently.”
In US regulation, the nearest classification is 21 CFR 890.5720, which defines a water circulating hot or cold pack as “a device intended for medical purposes that operates by pumping heated or chilled water through a plastic bag and that provides hot or cold therapy for body surfaces.” The eCFR text lists it as Class II (special controls). Whether a particular brand falls under that regulation is a question for its manufacturer, so this page does not assign it to any one product.
How it works and what it is made of
Both system designs described below share three parts: a cooler that holds ice and water, a tube, and a cuff shaped for a body region. Cold water moves from the cooler into the cuff, and the cuff presses on the area while the cold passes through its wall.
- Cooler and lid. The reservoir that holds the ice and water supplying the chilled water.
- Cuff. The wrap that sits on the body. Enovis publishes separate patient-information sheets for knee, ankle, shoulder and back/hip/rib use, which shows that cuffs are made for specific body regions.
- Power supply (powered system only). The IFU says to use only the supplied power supply and lists its operating environment as 5 to 40 C at 15 to 90% humidity, with storage from -20 to 70 C.
Types and variants
Two manufacturer documents describe two ways of moving the water. The table lists only what those documents state.
| Type | Typical use | Key difference (as documented) |
|---|---|---|
| Powered, intermittent (Cryo/Cuff IC) | Cold and intermittent compression after surgery or injury; prescription only, single patient | Exchanges chilled pressurized water between the cuff and the cooler intermittently; use only the supplied power supply (IFU 13-1973 Rev G) |
| Gravity-fed (Cryo/Cuff Gravity) | Cold and focal compression to manage pain and reduce swelling | Continuous cold and focal compression from a “simple, gravity-fed delivery system”; the cuff is applied empty and filled by raising the cooler, which must not be higher than 15 in (38 cm) above the cuff (patient sheet 00-2303 Rev A) |
The gravity patient sheet is a 2010 document and the powered IFU is a 2022 revision. Always follow the instructions that ship with the specific model in use.
How to choose
The manufacturer documents state a small number of selection constraints. They are not purchasing advice, and neither manufacturer document ranks one system above another.
- Prescription. The device is marked Rx only, and the IFU says a licensed health care practitioner must select the length and frequency of use.
- Matching cuff and cooler. The gravity sheet says to use only Aircast Cryo/Cuffs or ArcticFlow Cuffs with its unit, so cuffs and coolers are chosen as a matched set.
- Body region. Cuffs are published per region (knee, ankle, shoulder, back/hip/rib).
- Contraindications. The IFU lists conditions in which the device should not be used, including Raynaud’s or other vasospastic diseases, diabetes, sickle-cell anemia, arteriosclerosis, cryoglobulinemia, hypercoagulable clotting disorders and other peripheral vascular diseases causing ischemia or poor local circulation, compromised local circulation, local tissue infection, cold allergy or hypersensitivity, previous cold injury and paroxysmal cold haemoglobinuria. Deciding whether any of these applies is a clinician’s task.
Safe use and handling basics
These points restate the manufacturer documents and are general. They do not replace the instructions for a specific model or a clinician’s direction.
- Barrier. Apply a barrier such as a cloth or bandage between the wrap and the skin, do not wrap tightly, and keep the site dry. If the barrier is moist, the IFU says to discontinue.
- Skin checks. The IFU says patient skin condition checks must occur on a routine basis, with extra monitoring for children, elderly or incapacitated patients, severe cardiovascular disease, decreased skin sensitivity or circulation, certain medications (beta blockers, epinephrine, narcotics), tobacco and alcohol.
- Warning signs. Increasing redness, itching, numbness, burning, pain or tingling, or blisters, discoloration, swelling or welts, are reasons to consult a professional immediately. The IFU warns that cold products may cause burns, blisters, frostbite, swelling, discoloration and skin or tissue necrosis if improperly used or monitored.
- Environment. The IFU warns of an explosion risk near flammable anesthetics or in oxygen-rich environments, says the cooler is not for food or beverage contact, and says to keep fluid off the power connection on the lid.
- Cleaning. Both documents give cleaning instructions for the cooler and tube, and the IFU states that no preventive maintenance is required other than cleaning. Follow the instructions that ship with the specific unit.
Common mistakes
- Putting an elastic wrap over a gravity cuff. The patient sheet says not to use an elastic wrap with the Cryo/Cuff Gravity.
- Raising the cooler higher than 15 in (38 cm) above the cuff, which risks excessive pressure.
- Applying the cuff directly to skin, or wrapping it tightly.
- Skipping the routine skin checks the manufacturer calls for.
- Using a power supply other than the one supplied with the powered system.
For how cold therapy fits among other modalities, see CASRAI’s hot and cold therapy selection guide and athletic training room equipment. Related support products include the elastic bandage, the hand compression glove and the compression sock; a pain management clinic supply checklist shows where such items sit in a clinic’s stock list.
Frequently asked questions
What is a cryotherapy cuff?
A wrap that delivers cold and compression to a body region using chilled water from a cooler. The Cryo/Cuff IC IFU states its intended use as the “temporary reduction of swelling and pain after surgery or injury.”
Does a cryotherapy cuff need a prescription?
The Cryo/Cuff IC IFU marks the device Rx only, for single patient use, and says a licensed health care practitioner must select the length and frequency of use.
How do powered and gravity-fed cuffs differ?
The powered system exchanges chilled pressurized water between the cuff and cooler intermittently. The gravity system delivers continuous cold and focal compression through a “simple, gravity-fed delivery system”, with the cooler held no higher than 15 in (38 cm) above the cuff.
Is a cryotherapy cuff regulated by the FDA?
21 CFR 890.5720 classifies the water circulating hot or cold pack, a device that pumps chilled or heated water through a plastic bag, as Class II (special controls). Which regulation applies to a given brand is a question for its manufacturer.
Who should decide whether a cuff is suitable?
A clinician. The IFU lists contraindications and says to consult a professional immediately if warning signs appear. This page does not give medical advice.
Sources
- Enovis (formerly DJO), Cryo/Cuff IC Instructions for Use, doc 13-1973 Rev G, 6 January 2022: enovis.com IFU PDF. Checked 30 October 2026.
- DJO, Knee Cryo/Cuff Gravity Patient Information, doc 00-2303 Rev A, 2010: enovis.com patient information PDF. Checked 30 October 2026.
- US Food and Drug Administration, 21 CFR 890.5720, water circulating hot or cold pack: eCFR text. Checked 30 October 2026.
