Codman Fixed Pressure Shunts

Constant Pressure Valves

Cylindrical, normal, micro and burr hole types are available, including integrated anti-siphon.
The Codman® Hakim® Precision Constant Pressure Valve has a ball and spring mechanism.

Working pressure table:

10 mm H2O         Very low                       o  
40mm H2O          Low                              oo
70mm H2O          Medium                     ooo    
100 mm H2O       Medium-high           oooo
130mm H2O        High                            ooooo

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