Press release from Companies

Published: 2021-01-18 12:02:00

Redsense Medical AB: Redsense Medical receives Notice of Allowance from U.S. Patent and Trademark Office for patent application f or the catheter sensor solution.

Redsense Medical announces today that the United States Patent and Trademark Office (USPTO) has issued a Notice of Allowance for patent application 16/333,571, "A device for monitoring hose connectors and body fluid leakage".

"This is a natural extension of our technology, which will broaden the monitoring capabilities of the Redsense Alarm and enhance patient safety even further. We are now looking forward to the patent being issued, which likely will happen in May 2021," says Patrik Byhmer, CEO of Redsense Medical AB and co-inventor of the patent together with Susanne Olausson.

The claims of the allowed patent application provides protection for a hose, or line, connector sensor and is a complement to our previous product "Venous sensor". An extending optical fiber connects the hose connector sensor to the alarm unit, which thus can monitor the assembly for fluid leakage getting trapped in the hose connector enclosure. Such connector and hose assemblies include luer locks, which are widely used in extracorporeal circuits for hemodialysis.

"The catheter sensor solution is already commercially available, and the claims allowed by the USPTO ensure that Redsense can continue to address the safety risks in hemodialysis. Venous needle dislodgement is a serious issue, which we address with the venous sensor", says Patrik Byhmer. "However, if the integrity of the extracorporeal blood circuit is compromised somewhere else, for example through the failure of a catheter luer lock, the result can be just as devastating. This hose connector sensor allows a treatment provider to quickly, reliably and firmly attach a sensor to the hose connector, which will allow for detection of any blood leakage from the catheter luer lock", he explains.

Redsense Medical has developed an established, proprietary technology for optical monitoring of the vascular access points in conjunction with hemodialys treatment. The Company is further building a range of optical measurement solutions for advanced wound care as an offshoot of the core technology; with optical sensors integrated in smart bandages, new possibilities open up for a more personalized and resource-efficient treatment of wounds. Redsense aims to fortify the patent portfolio around its technologies to secure a strong protection on all important regional markets.

For more information, please contact:

Patrik Byhmer, CEO Redsense Medical AB (publ)

Phone: +46 35 10 60 30


Redsense Medical is a corporate group with operations mainly in Europe and the United States. The company has developed the Redsense System, an innovationused for monitoring and alarm in the case of blood leakage in connection with a hemodialysis treatment. Redsense Medical solves one of the most serious remaining safety problems within hemodialysis – to quickly detect Venous Needle Dislodgement and catheter leakage to minimize blood leakage. The system consists of a patented fiber optic sensor, designed for either venous needle or central venous catheter, which is connected to an alarm unit. From the very start, the development of the company's technology has been based on the demands and safety requirements of healthcare providers in the dialysis sector.

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