Cross clamp意思

"Cross clamp" is a term used in various contexts, but it is most commonly associated with medical and surgical procedures, particularly in the field of cardiothoracic surgery. In this context, a cross clamp refers to a device used to temporarily stop blood flow in the aorta during open-heart surgery. The aortic cross clamp is applied to the aorta, which is the largest artery in the body, to prevent blood from leaving the heart and to create a bloodless surgical field. This is typically done during procedures such as coronary artery bypass grafting (CABG) or valve replacements, where access to the heart is necessary.

The term "cross clamp" comes from the fact that the device resembles a cross when closed around the aorta, and it clamps down on the artery to achieve the necessary occlusion. The use of the cross clamp is a critical step in these surgeries and is often accompanied by the use of cardiopulmonary bypass (CPB), which takes over the function of the heart and lungs during the procedure.

In other contexts, "cross clamp" may refer to a type of tool or device used for clamping or holding objects in place, especially if the tool has a cross-like shape or design.