Royal Philips has introduced OmniWire, said to be the world’s first solid core pressure wire for coronary artery interventional procedures. With its solid core construction, physicians can more easily manoeuvre the wire in the patient’s circulatory system to measure blood pressure along the vessel and guide the delivery of catheters and stents.
Philips says the new wire supports iFR (instantaneous wave-free ratio) measurements, the only resting index supported by randomised controlled outcome trials, as well as FFR (fractional flow reserve) measurements. It also integrates with the Philips IntraSight interventional applications platform, which can co-register iFR data onto an angiogram to precisely identify the parts of vessels requiring treatment.
“I have been very impressed with the handling of OmniWire; the new solid core design performed beautifully and I was able to navigate a difficult case easily,” said cath lab director at Barnes Jewish Hospital and associate professor at Washington University in St Louis, USA, Dr Jasvindar Singh, who performed the first human case with OmniWire in the country. “We used iFR co-registration and found that the patient needed a stent. I was then able to perform the whole procedure working over OmniWire. This is truly an innovation in percutaneous coronary interventions.”
Traditional pressure wires use a hollow metal tube (hypotube) to house the wiring that transmits the pressure information. Due to their thin walls, these wires can be challenging to manoeuvre and can sometimes kink, potentially becoming damaged during the procedure. As a solid core pressure guidewire, OmniWire uses advanced conductive ribbons embedded in its outer polymer layer to communicate pressure information. The distal part of the wire is made from nitinol, a super-elastic, durable material that is commonly used in non- diagnostic, interventional ‘workhorse’ guidewires. The proximal part of the wire is constructed from a high strength cobalt alloy that provides the high durability required for complex and multi-vessel cases.
OmniWire integrates with IntraSight, Philips’ secure interventional applications platform that integrates a comprehensive suite of clinically proven modalities including iFR, FFR, intravascular ultrasound and co-registration to simplify complex interventions and make routine procedures quicker. With iFR pull-back and co-registration, physicians can identify precise locations causing ischaemia, plan stent length and placement with a virtual stent, and predict physiologic improvement.
Picture: OmniWire supports iFR and FFR measurements.
Published on page 9 of the October 2020 issue of RAD Magazine.