Ra Medical Systems, Inc. (NYSE American: RMED), a medical device company focusing on developing its excimer laser system to treat vascular diseases, announces the United States Patent and Trademark Office has granted the company a patent for liquid-filled laser ablation catheters with expanded distal optical windows. U.S. patent 11,284,941 (the ’941 patent), titled Laser Ablation Catheters Having Expanded Distal Tip Windows for Efficient Tissue Ablation, describes a catheter with an increased ablation surface area at the distal catheter tip. This is the 11^th U.S. patent issued to Ra Medical and is a natural evolution in the patent coverage of the company’s DABRA technology.

“The design covered by this patent is important because it allows us to achieve an increased ablation area without increasing the overall catheter profile. We believe this will make it easier for us to develop a family of products to address larger diameter vessels using the same base platform technology. The patent marks another milestone in our intellectual property strategy to fortify our competitive position both now and in the future,” said Will McGuire, Ra Medical Systems CEO.

About Ra Medical Systems

Ra Medical Systems manufactures the DABRA excimer laser and catheters for the treatment of certain vascular diseases. DABRA has been cleared by the FDA for crossing chronic total occlusions in patients with symptomatic infrainguinal lower extremity vascular disease and has an intended use for ablating a channel in occlusive peripheral vascular disease. In addition, DABRA has been granted CE mark clearance for the endovascular treatment of infrainguinal arteries via atherectomy and for crossing total occlusions. DABRA excimer lasers and catheters are manufactured in a 32,000-square-foot facility located in Carlsbad, California. The vertically integrated facility is ISO 13485 certified and is licensed by the State of California to manufacture sterile, single-use catheters in clean room environments.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements generally relate to future events or Ra Medical’s future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these words or other similar terms or expressions that concern Ra Medical’s future expectations, strategy, plans or intentions. Forward-looking statements in this press release include, but are not limited to, statements regarding Ra Medical’s business strategy, the potential of the DABRA system for new applications of use, the market opportunity and growth of current and potential markets and its ability to continue to manage expenses and cash burn rate at sustainable levels. Ra Medical’s expectations and beliefs regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties that could cause actual results to differ materially from those projected or implied by such forward-looking statements. The potential risks and uncertainties which contribute to the uncertain nature of these statements include, among others, challenges inherent in developing, manufacturing, launching, marketing, and selling new products or new applications of use; risks associated with acceptance of DABRA devices for current and potential applications of use and procedures performed using such devices by physicians, payors, and other third parties; development and acceptance of new products, product enhancements or applications of use; clinical and statistical verification of the benefits achieved via the use of Ra Medical’s products; the results from our clinical trials, which may not support intended indications or may require Ra Medical to conduct additional clinical trials or modify ongoing clinical trials; challenges related to commencement, patient enrollment, completion, an analysis of clinical trials; Ra Medical’s ability to manage operating expenses; Ra Medical’s ability to recruit and retain management and key personnel; Ra Medical’s need to comply with complex and evolving laws and regulations; intense and increasing competition and consolidation in Ra Medical’s industry; the impact of rapid technological change; adverse outcome of regulatory inspections; impacts from public health crises, such as the Covid-19 pandemic, geopolitical conflicts, such as Russia’s invasion of Ukraine and related sanctions against Russia and Belarus, or natural disasters; and the other risks and uncertainties described in Ra Medical’s news releases and filings with the Securities and Exchange Commission. Information on these and additional risks, uncertainties, and other information affecting Ra Medical’s business and operating results is contained in Ra Medical’s Annual Report on Form 10-K for the year ended December 31, 2021 and in its other filings with the Securities and Exchange Commission. The forward-looking statements in this press release are based on information available to Ra Medical as of the date hereof, and Ra Medical disclaims any obligation to update any forward-looking statements, except as required by law.

Ra Medical investors and others should note that we announce material information to the public about the company through a variety of means, including our website (www.ramed.com), our investor relations website (https://ir.ramed.com/), press releases, SEC filings and public conference calls in order to achieve broad, non-exclusionary distribution of information to the public and to comply with our disclosure obligations under Regulation FD. We encourage our investors and others to monitor and review the information we make public in these locations as such information could be deemed to be material information. Please note that this list may be updated from time to time.

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