Cite

Copy

Tap on and choose 'Add to Home Screen' to create a shortcut app

Tap on and choose 'Install/Install App' to create a shortcut app

Codman Hakim Precision Pressure Differential Valves

This page was last updated on September 27th, 2017

The Codman Hakim Precision valve is a pressure differential valve constructed to open at a predetermined pressure. In vivo, the pressure that the valve responds to is the difference between the intracranial pressure and the pressure of the space into which the distal end of the system is draining into (e.g., the pressure within the abdominal cavity in the case of a ventricular-peritoneal shunt).

Valve Design

 

Radiographic Images

Very Low Low Low Medium High Medium High

In-Line Valve

In-Line Valve

In Line Valve

In-Line Valve

In-Line Valve

Burr Hole Valve

Burr Hole Valve

Burr Hole Valve

Burr Hole Valve

Burr Hole Valve

Cylindrical Valve

Cylindrical Valve

Cylindrical Valve

Cylindrical Valve

Cylindrical Valve

Micro Valve

Micro Valve

Micro Valve

Micro Valve

Micro Valve

Valve Opening Pressures

 

Valve Dimensions

 

Valve Assemblies

 

 

Your donations keep us going

The ISPN Guide is free to use, but we rely on donations to fund our ongoing work and to maintain more than a thousand pages of information created to disseminate the most up-to-date knowledge in the field of paediatric neurosurgery.

By making a donation to The ISPN Guide you are also indirectly helping the many thousands of children around the world whose treatment depends on well-informed surgeons.

Please consider making a donation today.

Use the app

The ISPN Guide can be used as a standalone app, both on mobile devices and desktop computers. It’s quick and easy to use.

Fully featured

Free registration grants you full access to The Guide and host of featured designed to help further your own education.

Stay updated

The ISPN Guide continues to expand both in breadth and depth. Join our mailing list to stay up-to-date with our progress.