Promising New Therapy for Drug-Resistant Hypertension

The therapy pioneered by Mercator MedSystems, Inc., combines the use of the company's Bullfrog® Micro-Infusion Catheter with a known drug to reduce the hyperactivity of nerves in the renal artery leading to and from the kidney. These nerves are implicated in the initiation and maintenance of high blood pressure. he early data shows that this therapy precisely targets these nerves, achieving the desired effect without negatively affecting surrounding tissue.


The slender Micro-Infusion Catheter is introduced into an artery through a small needle in the upper leg, and is guided into the main kidney artery (the renal artery). Once positioned, a balloon at the tip of the catheter is inflated inside the artery, sliding a 130 micron (two hair widths thick) microneedle through the artery wall into the tissue known as the adventitia, which envelops the hyperactive nerves leading to the kidney. As the drug is infused through the microneedle, it surrounds the artery to create an effective cylindrical treatment zone and reduces the nerve signals which cause high blood pressure.

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