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A sequential compression device, or SCD, is a medical device that uses inflatable sleeves to squeeze the legs in a timed pattern. The sleeves connect to a pump that inflates and deflates chambers around the calves, feet, or thighs. This movement helps push blood through the leg veins. SCDs are commonly used in hospitals to reduce the risk of blood clots in patients who are not moving much.
read more about sequential compression device ...An SCD is used to improve venous blood flow in the legs when a patient has limited mobility. It is often used before, during, or after surgery, during a hospital stay, or when a clinician wants mechanical help to lower deep vein thrombosis risk. The device does not replace every clot-prevention plan, since some patients also need medication, walking, or other care. The healthcare team chooses the plan based on the patient’s clotting and bleeding risks.
The sleeves inflate in a sequence, usually starting lower on the leg and moving upward. This squeezing action helps move blood back toward the heart instead of letting it pool in the legs. The pump then releases pressure so the leg can rest before the next cycle. The repeated pattern is designed to mimic part of the circulation benefit of muscle movement during walking.
The sleeves are wrapped around the patient’s legs, feet, or calves and connected to a pump. The fit should be snug but not painfully tight, and the tubing should not be kinked. Patients are usually asked to keep the device on while resting in bed or sitting, unless the care team removes it for walking, bathing, or skin checks. Nurses or clinicians check the skin, fit, and device function during use.
An SCD should be used under clinical guidance, especially in patients with leg wounds, severe swelling, poor circulation, or certain vascular conditions. The sleeves can cause skin irritation, pressure marks, discomfort, or problems if they are too tight or placed incorrectly. Patients should report numbness, pain, tingling, cold feet, skin color changes, or worsening swelling. The device should not be disconnected for long periods unless the care team says it is safe.
No. Compression stockings apply steady pressure, while an SCD uses a pump to inflate and deflate sleeves in cycles. Both can help circulation, but they work differently.
SCDs are usually worn while resting in bed or sitting. The care team will disconnect or remove the sleeves when it is time to walk or transfer.
No device can prevent every clot. An SCD helps reduce risk in selected patients, but the full plan can also include walking, medication, hydration, or other steps.
After surgery, patients often move less than usual, which can slow blood flow in the legs. SCDs help move blood through the leg veins while the patient is recovering.
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