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Instrument · Supplies

Endovascular Dilator

Vessel Dilators · Tapered vessel dilator · Coons taper dilator · Endovascular dilator set · Serial dilators

Long, stiff plastic tubes with a gradually tapered tip and a hollow center that runs over a guidewire. They come in sets of increasing French sizes, often with a slippery hydrophilic coating.

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What it does and the lengths it comes in.

  • What it’s for

    Stretch the access artery and the tissue tract in steps before a large introducer sheathSHEETHA covering that wraps around a structure; in procedures, a short hollow tube left in a blood vessel to pass catheters through.Full entry or stentstentA small tube, often of metal mesh, placed inside a vessel or duct to hold it open.Full entry graftGRAFTTissue or a man-made material moved into place in surgery to replace or repair a damaged part.Full entry delivery system goes in, as in TEVAR with 20 to 24 Fr sheaths. Each dilatorDY-lay-terAn instrument used to stretch or widen an opening, canal or passage in the body.Full entry is passed over the guidewire and removed, going up in size. Medtronic's TEVAR instructions say to open narrow entry vessels with angioplasty balloons or vessel dilators if needed, using a step-up approach.

  • Lengths and variants

    Cook's endovascular dilatorDY-lay-terAn instrument used to stretch or widen an opening, canal or passage in the body.Full entry sets run 14, 16/18, 20/22 and 24/26 Fr, 45 cm long, for a .035 inch wire.

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4 sources
  1. Medtronic. Valiant Navion Thoracic Stent Graft System Instructions for Use, 10.4 Introducing the delivery system, p. 55
  2. Medtronic. Valiant Captivia Instructions for Use, p. 34
  3. cookmedical.eu
  4. Getinge. Cardiosave IAB Insertion Guide, p. 4

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