I read the informative article “Clinical Evaluation of a Positive Pressure Device to Prevent Central Venous Catheter Occlusion: Results of a Pilot Study” (Clinical Journal of Oncology Nursing [CJON], Vol. 5, No. 6, pp. 261–265) by Margaret A. Rummell, RN, MHA, OCN®, and colleagues and wanted to inform CJON readers that B. Braun Medical also manufacturers a positive pressure device, the Ultrasite® valve.