How Supplied - Codman Hakim Bedienungsanleitung

Codman Hakim In-line and Right Angle Valves include a precision fixed
pressure valve with a low profile and flat bottom, and an in-line or right
angle integral reservoir, with or without SiphonGuard
Codman Hakim Cylindrical Valves include a precision fixed pressure valve,
a pumping chamber, and an outlet valve with or without a prechamber
Codman Hakim Micro Valves include a precision fixed pressure valve with
or without a Rickham reservoir
All precision fixed pressure valve configurations are designed for use with
components having the following dimensions:
Component
Ventricular Catheter
Drainage Catheter

How Supplied

Precision Fixed Pressure Valve
Straight Connector(s)*
Introducer**
Priming Adapter***
Right Angle Adapter****
14 cm ventricular catheter
120 cm unitized peritoneal
catheter
Instructions for Use
* Straight connectors provided with Cylindrical and Micro versions only
** Introducers provided with Cylindrical versions only
*** Priming adapter provided with In-line, Right Angle, and Micro versions
only
**** Right angle adapter provided with In-line, Micro, and Cylindrical
versions only
SiphonGuard Device
CSF flows through the inlet valve and enters the SiphonGuard Device,
where it flows into two internal passages Under normal conditions, the
majority of CSF flows through a central ruby ball and cone valve, and
exits directly out of the distal port of the SiphonGuard Device The ball
is balanced between a spiral 316L stainless steel spring and a flat 316L
stainless steel spring The remaining CSF travels through a spiral passage
that surrounds the central passage, and joins the fluid passing through the
central passage, distal to the ball and cone valve
A sudden increase in CSF flow will compress the flat spring to close the
ball and cone valve and the entire volume of CSF will be forced through
the longer secondary spiral passage, effectively slowing the rate at
which CSF is shunted from the brain Once the flow rate entering the
SiphonGuard Device decreases, the flat spring will separate the ruby ball
from the valve seat, opening the central passage As long as CSF continues
to be shunted from the ventricles, flow through the spiral passage of the
SiphonGuard Device never stops, regardless of the patient's position
Note: The SiphonGuard Device will not activate at low CSF flow rates
The SiphonGuard Device has a rigid enclosing shell of polysulfone to
prevent inadvertent closure (and subsequent reduction or blockage of CSF
flow) caused by externally applied pressure
Components and Accessories
Ventricular Catheter (Figure 3)
The ventricular catheter is a 14 cm straight ventricular catheter molded
of radiopaque silicone elastomer with x-ray detectable dots and
a preassembled stainless steel introducing stylet
Drainage Catheter
The drainage catheter is a 120 cm radiopaque peritoneal catheter, molded
of radiopaque silicone elastomer
Right Angle Adapter (Figure 4)
The right angle adapter, made of Prolene® Material, allows 90 degree
bending of the ventricular catheter at the burr hole site
Inner Diameter
1 4 mm
1 0 mm
Valve Only
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Outer Diameter
2 7 mm
2 2 mm
Valve System, Unitized
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