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Disposable system for intraventricular pressure measurement and CSF drainage. Technical note.

✓ A simple disposable system for controlled cerebrospinal fluid drainage and monitoring of ventricular fluid pressure is described. The unit is connected between the patient's external ventriculostomy and a standard pressure transducer. This drainage system is easily assembled, incorporates an adjustable mechanism for releasing pressure, provides a continuous record of ventricular fluid pressure, and permits hourly measurement of CSF drainage. The pressure recording is continued even when the ventricular fluid pressure falls below a predetermined maximal value.