Boston Scientific receives FDA approval for Blazer open-irrigated catheter

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Boston Scientific has received US Food and Drug Administration (FDA) approval for the Blazer open-irrigated (OI) radiofrequency ablation catheter. The Blazer OI catheter has been approved to treat type I atrial flutter. The approval of the Blazer OI catheter marks the first time Boston Scientific will offer an open-irrigated catheter to the US market.

The Blazer OI catheter is designed for use in ablation procedures to restore a normal heart rhythm for patients in atrial flutter. During the procedure, localised electrical energy is delivered through an electrode on the tip of a catheter into the heart muscle, creating heat to destroy a small area of the tissue responsible for the abnormal heart rhythm. The newly-approved Blazer OI catheter features Total Tip Cooling technology intended to cool the catheter tip consistently during the ablation procedure, improving the quality of the ablation lesion.

The Blazer OI catheter was granted approval based on data from the BLOCK-CTI clinical trial, a prospective, randomised trial that enrolled 302 patients at 24 sites in the USA and evaluated the safety and effectiveness of the Blazer OI catheter in patients with sustained or recurrent type 1 atrial flutter.

“Successful results from the BLOCK-CTI trial demonstrate that the Blazer open-irrigated catheter is safe and effective for the ablation of atrial flutter,” says Tom McElderry, principal investigator, associate professor and section chief of electrophysiology at the University of Alabama at Birmingham, USA.

In January, the company also received CE mark for the IntellaTip MiFi open-irrigated (OI) catheter for use in all cardiac ablation procedures. The IntellaTip MiFi OI catheter is designed to provide physicians with precise, multidimensional information via mini-electrodes which deliver a highly localised signal reflecting exactly what is happening at the tip of the catheter in real-time during the ablation procedure. The IntellaTip MiFi OI catheter also features the same Total Tip Cooling technology as the Blazer OI catheter.

In the USA, the IntellaTip Mifi OI catheter is an investigational device and is not available for sale.

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