| http://www.w3.org/ns/prov#value | - During the life of the catheter, the valve should maintain functionality to provide multiple functions, including, but not limited to, one or more of the following examples: (a) sealing off the open end of the catheter during placement into the patient's circulation system, (b) sealing the catheter tube except when being accessed by an accessing device, such as a syringe or guidewire, to prevent b
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