Device to remotely monitor catheter output: results of a pilot trial
BAUS ePoster online library. Mosli-lynch C. Jun 26, 2018; 211361
Disclosure(s): Major Shareholder in OpSense Ventures.
Mr. Conor Mosli-lynch
Mr. Conor Mosli-lynch
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Abstract
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Introduction & Objectives: Approximately half a million people in the UK have a long-term urinary catheter. Early recognition and intervention in catheter-associated UTI can prevent hospitalisation and decrease both morbidity and mortality. This study examines a device, invented by the author, that continuously monitors the output of a foley catheter and communicates this information wirelessly to a remote monitoring system.

Materials & Methods: The small device fits easily between the outflow of a foley catheter and the inflow of the catheter bag. It continuously monitors urine flow, temperature and concentration. It can detect the presence of blood in the urine and gauge the degree of haematuria. It additionally connects to the catheter balloon, measuring intra-abdominal pressure. The data are continuously recorded and are transmitted wirelessly via a patient's smartphone or home-router to a cloud based monitoring system. We ran various laboratory simulations to judge the efficacy of the device during its development.

Results: The device is able to determine the temperature, concentration and degree of haematuria with an accuracy similar to current 'gold standard' tests. The changes in pressure in the catheter balloon can identify early blockage of the catheter, by demonstrating rising bladder pressure. The device does not appear to block with simulated blood clots.

Conclusions: The device will require further clinical trials to determine its safety, however it has significant potential to be able to identify catheterised patients at risk of UTI, haematuria and catheter blockage.
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