guidewire

A long and flexible fine spring used to introduce and position an intravascular angiographic catheter (see Seldinger technique). ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

Guidewire

A small, bendable wire that is threaded through an artery; it helps doctors position a catheter so they can perform angioplasty or stent procedures.
Found on https://www.texasheart.org/heart-health/heart-information-center/topics/a-z

guidewire

Type: Term Pronunciation: gīd′wīr Definitions: 1. A wire or spring used as a guide for placement of a larger device or prosthesis, such as a catheter or intramedullary pin.
Found on http://www.medilexicon.com/medicaldictionary.php?t=38738
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