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skos:definition |
UMD: Vascular catheters designed for the removal of tissue from the lumen or walls of a vessel through the vascular system. These catheters typically consist of an 8 or 9 Fr tube with surgical forceps on the proximal end affixed to a movable wire within the catheter shaft to permit opening and closing of a pair of jaws at the distal tip. They are typically introduced through the jugular vein (e.g., pulmonary artery biopsy) or the femoral arteries (e.g., vena cava, iliac vein biopsy). Biopsy vascular catheters are mostly used for differential diagnosis of purely intraluminal masses (e.g., to differentiate tumors from thrombus). These catheters are also used frequently for retrieval of foreign objects.
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