X-Ray Verified Accuracy of the proGAV Verification Instrument

X-Ray Verified Accuracy of the Aesculap - Miethke proGAV Adjustable Shunt Pressure Setting Verification Instrument

This study is to verify the use of a hand held tool to verify the new setting of a hydrocephalus shunt (proGAV). This tool would be used in place of an Xray of the patient's head, which is how settings are verified currently.

Inclusion Criteria:

• Implanted with proGAV Requiring adjustment Implant must be palpable under the skin

Exclusion Criteria:

• Unwilling to consent Implanted within 7 days of inclusion visit