Indication; Technical Description - MIETHKE miniNAV Instrucciones De Manejo

| INSTRUCTIONS FOR USE
GB

INDICATION

The miniNAV is used for draining cerebrospinal
fluid from the ventricles into the peritoneum in
hydrocephalus patients.
4. inlet connector
1. titanium housing
Fig. 1: Schematic cross-section of the miniNAV
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3. sapphire ball
2. spiral spring
5. outlet connecotor

TECHNICAL DESCRIPTION

The miniNAV was developed to offer a small-
sized valve without the obstruction related pro-
blems that are known to arise in the treatment
of hydrocephalus.
The miniNAV is composed of a robust titanium
casing (1) whose proximal end contains a ball-
cone valve. A spiral spring (2) maintains the
opening pressure of the ball-cone valve and the
sapphire ball (3) ensures the precise closure of
the valve.
The inlet connector (4) and the outlet connector
(5) are also made of titanium.
miniNAV