Retrieving small objects from narrow vasculature can be like a bad fishing trip. Trying to snag tiny objects at a distance without directly seeing them requires quality hooks and a strong but flexible rod.
Merit Medical just received FDA clearance for its ONE Snare, a device designed to “retrieve inferior vena cava filters, reposition indwelling venous catheters, strip fibrin sheath formation, or assist in central venal access venipuncture.” The loop of the snare is made of Nitinol coated with a layer of gold plated tungsten, providing high flexibility while being clearly visible under a fluoroscope.
Features from the product brochure:
• Radiopaque marker band on the snare delivery catheter identifies its precise location.
• 90-degree angle loop for a coaxial approach to foreign body capture.
• Nitinol core wire combines shape memory and superelasticity for support during vessel navigation.
• Nitinol and gold-plated tungsten loop retains its circular shape to support the capture of foreign bodies.
• Snare delivery catheter is constructed of a high performance copolymer material which offers strength during foreign body retrieval to minimize the potential for kinking and buckling.
• The strain-relief hub of the snare delivery catheter provides extra flexibility during deployment and use.
• Introducer tool with unique, peel-away design provides quick and efficient snare loading.
• Easy-to-grip torque device supports snare torqueability.
Product page: ONE Snare Endovascular Snare System