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An arterial tourniquet is a device used to apply pressure around a limb to temporarily stop arterial blood flow. It may be used in surgery or emergency bleeding control. Surgical arterial tourniquets are often pneumatic cuffs connected to a pressure-control unit. Emergency tourniquets are designed to control life-threatening limb bleeding until definitive care is available.
read more about arterial tourniquet ...An arterial tourniquet is used when blood flow to part of a limb needs to be stopped temporarily. In surgery, it can create a bloodless field for selected orthopedic or hand procedures. In trauma care, it may help control severe bleeding from an arm or leg when direct pressure is not enough. The use, pressure, placement, and duration depend on the clinical setting and patient condition.
The device compresses the limb enough to occlude arterial flow beyond the cuff or band. Pneumatic surgical systems inflate a cuff to a set pressure, often based on limb size and blood pressure. Emergency tourniquets tighten with a windlass or mechanical device until bleeding is controlled. The goal is effective occlusion with the least necessary pressure and time.
Types include pneumatic surgical tourniquets, emergency windlass tourniquets, elastic tourniquets, and specialty limb cuffs. Surgical systems may include a cuff, tubing, pressure regulator, timer, and alarms. Emergency devices are compact and designed for rapid application. The device must be appropriate for the limb, patient size, and purpose.
Possible risks include pain, nerve injury, muscle injury, skin injury, ischemia, reperfusion injury, blood clots, compartment syndrome, or tissue loss if used too long or incorrectly. Surgical teams track inflation time and pressure carefully. Emergency tourniquets should not be loosened or removed except by trained medical personnel. Severe pain, numbness, color change, swelling, or persistent bleeding requires urgent care.
No. It can be used in emergency bleeding control and in selected surgeries that need temporary limb blood-flow control.
Yes. Excessive pressure, poor placement, or prolonged use can injure nerves and other tissues.
No. In emergency care, a tourniquet should stay in place until trained medical personnel decide how to manage it.
No. Standard limb tourniquets are for arms or legs, not the neck, head, chest, abdomen, or pelvis.
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How to Apply a Tourniquet. American Red Cross. https://www.redcross.org/take-a-class/resources/articles/how-to-apply-a-tourniquet. Date Accessed June 18, 2026.
Severe bleeding: First aid. Mayo Clinic. https://www.mayoclinic.org/first-aid/first-aid-severe-bleeding/basics/art-20056661. Date Accessed June 18, 2026.
Tourniquets for the control of traumatic hemorrhage. Journal of Emergency Medicine (PMC). https://pmc.ncbi.nlm.nih.gov/articles/PMC2151059/. Date Accessed June 18, 2026.
Tourniquet-induced nerve compression injuries are caused by high pressure levels and gradients: a review of the evidence to guide safe surgical, pre-hospital and blood flow restriction usage. BMC Biomedical Engineering. https://bmcbiomedeng.biomedcentral.com/articles/10.1186/s42490-020-00041-5. Date Accessed June 18, 2026.