NHS Hospitals Introduce Wrist Device Designed to Prevent IV Line Failures

A wrist-worn device designed to keep intravenous lines securely in place is being introduced at NHS hospitals after clinical testing and independent evaluation.

The Javelo device is worn in a similar way to a watch and holds IV tubing mechanically rather than relying on adhesive tape. Its developers say this gives patients more freedom to move while reducing the likelihood of lines becoming dislodged, blocked or damaged during treatment.

Failed IV lines can interrupt treatment, require patients to undergo another cannula insertion and take up valuable clinical time. Displacement can also contribute to extravasation, where medication leaks from a vein into surrounding tissue and may cause pain, tissue damage or lasting injury. NHS Resolution has settled more than 200 claims connected with extravasation over the past decade, costing approximately £16 million.

The device has been independently assessed by Imperial College London researchers. Laboratory testing found it performed particularly well under simulated perspiration and peeling conditions, while 60% of participants rated it the most comfortable of the four products examined. Researchers nevertheless said further study was required.

It is already being used at Mount Vernon Cancer Centre, Lister Hospital and the Macmillan Renton Unit at Hereford County Hospital. The British-manufactured product has also secured a place on the NHS Supply Chain framework for intravenous cannulas and associated products, making it available more widely from April 2027.

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