Product Evaulation of Uroshield for Prevention of Recurrent Blockages of Supra-pubic Catheters in people with SCI

Knight S1, Riley C1, Lee F1, Hamid R1

Research Type


Abstract Category


Abstract 267
Open Discussion ePosters
Scientific Open Discussion Session 18
Friday 9th September 2022
11:20 - 11:25 (ePoster Station 5)
Exhibition Hall
New Devices Spinal Cord Injury Quality of Life (QoL)
1. Royal National Orthopaedic Hospital

Rizwan Hamid




Hypothesis / aims of study
Many patients with a spinal cord injury (SCI) require an indwelling catheter (either supra-pubic or urethral) in order to effectively empty the bladder. Indwelling catheters are associated with an increased incidence of infections and can become blocked. Blockages require urgent attention from either community nursing or A&E. These complications have a negative impact on quality of life and are associated with increased healthcare costs. Uroshield ® is a small device which is attached to the tubing of an indwelling catheter and transmits low frequency sound waves along the inner and outer surfaces of the catheter. This is designed to prevent biofilm formation which is associated with infection and encrustation which can cause blockage. We present the results a product evaluation of Uroshield in a group of SCI patients with an indwelling catheter.
Study design, materials and methods
SCI patients who experienced recurrent blockages or infections were identified from the records of the Complex Catheter Change Clinic. Following written consent, patients were entered into the Product Evaluation for a period of 12 weeks.  They were given information about the device and training in its use. Baseline questionnaires regarding number of blockages and infections, QoL, sleep quality, and catheter satisfaction were completed. Questionnaires were repeated at 4, 8 and 12 weeks. Patient comments were also collected.
A total of 10 (7 female and 3 male) SCI patients were recruited. The average age was 58 years. Most patients experienced recurrent blockages rather than infections. 4 patients did not complete the 12 week trial period. There was a mean reduction in catheter blockages from 2 per 4 weeks to less than 1. Between baseline and 4 weeks, there was an average 4.6 point increase (scale 1-10) in catheter satisfaction. There was a slight reduction in catheter associated pain and a slight increase in sleep quality. One patient stopped using the device because they felt that increased bladder spasms, one thought it was causing skin issues and the remaining 2 stopped for practical reasons associated with charging the device. The patients who continued using the device were extremely satisfied and wanted to continue using it after the trial period.
Interpretation of results
The Uroshield device prevented catheter blockages and recurrent infections in patients with a supra-pubic catheter. It was well tolerated in the majority of patients, but some stopped due to practical reasons.
Concluding message
The Uroshield device which uses to low frequency sound waves to prevent formation of a biofilm on indwelling catheters may provide a solution to the problem of recurrent catheter blockages in some SCI patients with an SPC. This has the potential to increase quality of life and reduce healthcare associated costs.
Figure 1 Graphs showing number of urinary tract infections and blockages following use of Uroshield
Funding None Clinical Trial No Subjects Human Ethics not Req'd It was approved by Surgical Innovations New Technologies and Therapies committee as a product evaluation Helsinki not Req'd It was not a clinical trial Informed Consent Yes
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