Strata

How the Strata Adjustable Pressure Valve Works

The Strata valve diverts excess cerebrospinal fluid (CSF) from the ventricles of the brain to another area of the body – usually the peritoneal cavity or right atrium of the heart. The Strata valve uses a patented technology that utilizes a magnetic rotor to adjust the tension on a ball and spring valve mechanism, allowing for five separate pressure/flow performance level settings. The pressure/flow performance level setting can be changed non-invasively by using one of the Strata Adjustment Systems, which use magnets to change the pressure/flow performance level and sensors to verify the new setting.

The Strata valve also includes a siphon-control device, the Delta^® Chamber. This device is a normally closed mechanism which opens in response to positive ventricular pressure, but stays closed in response to negative distal catheter pressure.

Important Safety Information

In addition to the risks associated with any brain surgical procedure, such as bleeding, damage to surrounding brain tissue, seizures, stroke, or death, the following complications may also occur: obstruction of the system, infection, and mechanical malfunction leading to overdrainage. These common complications can lead to serious risks and should be treated as promptly as possible. It is important to review the product labeling for complete safety information, potential complications, contraindications, and a complete explanation of warnings and precautions.