Validating the integrity of one-way check valves for the delivery of contrast solution to multiple patients

The infusion of contrast solution into multiple patients from a single package is desired in clinics concerned about the high cost of the solution. The use of check valves in the infusion line is a method of protection used to reduce the risk of blood-borne cross-contamination. Through testing of the operating characteristics of the valves and infusion system and the high back pressure testing of the valves, the suitability of this method is assessed. The results indicate that the use check valves reduce the risk of now from the patient to the injector. Results also indicate that the use of sprung valves, those which require a significant forward pressure to open them are more appropriate for this application