tourniquet

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tourniquet

(to͝or`nĭkĕt, –kā, tûr`–), compression device used to cut off the flow of blood to a part of the body, most often an arm or leg. It may be a special surgical instrument, a rubber tube, a strip of cloth, or any flexible material that can be tightened to exert pressure. Compression should not be maintained for more than 20 min at a time because of the danger of congestion and gangrene. In cases of a bleeding emergency, a tourniquet is used to stop the flow of blood if other means, e.g., the application of a pressure bandage to the wound, are not effective. In arterial hemorrhage (bright red blood spurting out in jets) the tourniquet is applied above the wound, i.e., between the wound and the heart. In hemorrhage from a vein (an even flow of dark red blood) the tourniquet is applied below the wound, i.e., away from the heart.

Tourniquet

 

an elastic rubber tube (tape, bandage, cuff, and the like) for temporarily stopping hemorrhage when there is a wound or during an operation.

The various types of tourniquets used are based on constricting the extremities. A properly applied tourniquet must constrict the arterial trunks, otherwise hemorrhage is intensified owing to cessation of outflow of venous blood. A tourniquet is applied either on clothing or on a layer of cloth (a towel). The more elastic the tourniquet, the less it traumatizes the body tissues. A tourniquet is applied for no longer than two hours; during that time it should be loosened two or three times (more often in winter) to restore the circulation. (The artery should be pressed with a finger when the tourniquet is loosened.)

tourniquet

[′tu̇r·nə·kət]
(medicine)
An apparatus for controlling hemorrhage from, or circulation in, a limb or part of the body, where pressure can be brought upon the blood vessels by means of straps, cords, rubber tubes, or pads.

tourniquet

Med any instrument or device for temporarily constricting an artery of the arm or leg to control bleeding
References in periodicals archive ?
A pneumatic tourniquet is a required equipment item that must be used to administer a Bier block.
Pneumatic tourniquets are often left in place for more than two hours during elective surgical procedures.
As a result, the Walter Reed National Military Medical Center and Fort Belvoir Community Hospital in Bethesda will begin using the HemaClear tourniquet device, and will have it readily available to treat military orthopedic patients.
The length of time that the tourniquets in the cited studies had been in use varied from one day to 4 years.
A SURGEON has developed a two-in-one medical device that consists of a tourniquet with a built-in torch.
Intraoperative administration of heparin should be considered during surgery with the use of thigh tourniquets in high-risk patients.
Three mothers pushing prams are standing in slight confusion in front of the tourniquets.
Czech PRT distributes combat application tourniquets for Afghan National Policemen in these days.
Rose helped design what he calls an "integrated tourniquet system," which is incorporated into a soldier's uniform.
His blast came as it was revealed Aberdeen Royal Infirmary had put 21,000 patients at risk by reusing the tourniquets.
It is conceivable that the variability you observed was due to hemoconcentration, which can occur from posture changes from recumbent to upright, prolonged tourniquet application, and fist pumping.
Zip-ties/cable-ties can be used in so many ways, from repairs on equipment to tourniquets.