Fluidjets used to relieve back pain in a new outpatient procedure, HydroDiscectomy™

Billerica , Mass. , July, 2005 – A breakthrough minimally invasive procedure called HydroDiscectomy™ , which uses fluidjet technology rather than lasers or radio frequency to decompress herniated discs, delivers outstanding results in treating lower back pain.

"The addition of HydroCision products to my practice has improved the speed and effectiveness of my disc decompressions. The SpineJet ® MicroResector helps remove more disc material, providing a more complete procedure without added trauma to my patients," James C. Thomas, Jr., Orthopedic Surgeon at the Centennial Spine & Pain Center in Nevada.

Because this procedure is minimally invasive, patients can walk out of the surgery center in about two hours with significantly reduced or no pain. The fluidjet technology integral to HydroDiscectomy has been safely used in thousands of procedures.

A. B., 32, was among the first three patients in the tri-state area (NY, NJ, PA) to undergo the HydroDiscectomy procedure. “At three weeks my sciatica disappeared for the first time in three years,” she said. “I finally look forward to a life without pain.”

“We see HydroDiscectomy as a major breakthrough in the treatment of chronic back pain,” said Joseph Plante, Vice President, and General Manager of HydroCision. “The HydroDiscectomy system sets a new standard for minimally invasive spine surgery.”

“The HydroDiscectomy System is a key element in HydroCision's mission to be the world leader in disc preparation devices for spine procedures. We are very pleased with the excellent results physicians and patients are seeing with this revolutionary procedure. The success of this product strengthens our leadership position in fluidjet technology. We look forward to showing our technology at the upcoming International Meeting on Advanced Spine Techniques, IMAST (July 7-10, 2005) and International Spine Intervention Society, ISIS (July 15-17, 2005) shows,” Doug Daniels, CEO and President of HydroCision.

About herniated disc surgery

Spinal conditions that produce symptomatic back pain represent one of the largest and most costly challenges addressed by the U.S. healthcare system. Back pain costs the American economy over 950 billion dollars per year. Approximately 80 % of all Americans experience back pain at some point in their lives, and as many as 20% of working age adults cope with back pain annually.

Disc decompression of contained herniated discs is a well-established procedure for back pain relief that has been used on hundreds of thousands of patients over the past 40 years. Disc decompression is the removal of nucleus pulposus to relieve pressure a bulging disc exerts on adjacent nerves, causing pain.

About HydroCision

HydroCision ( www.hydrocision.com ) is a leading developer, manufacturer, and marketer of fluidjet based surgical tools. The Company was incorporated in 1994, and has been funded from its inception by a group of sophisticated venture capital firms and private investors. HydroCision believes its proprietary fluidjet technology is the basis of a new surgical modality, “HydroSurgery”, because of its compelling features and versatility. The company is developing a broad range of fluidjet-based products to meet the needs of multiple specialties.

HydroCision, SpineJet, and The Leader in HydroSurgery are registered trademarks of HydroCision, Inc., HydroDiscectomy, and HydroDrive Technology are trademarks of HydroCision, Inc.

Company Contacts:

Douglas J. Daniels

President & CEO

ddaniels@hydrocision.com

978-474-9300 x 136