Polaris Sophysa® Shunt System

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The Polaris® Shunt System is distributed by Sophysa and is an adjustable shunt valve compatible with MRI up to 3 Tesla[^1]. The Polaris® shunt valve can be used in conjunction with the SiphonX® gravitational unit, which additionally provides 200mmH20 in the vertical position as protection against overdrainage.

Tabular overview

Adjustable opening pressure

MRI compatibility

Yes

Yes, up to 3 Tesla MRI[^1] [^2]

In the standard model (SPV), the Polaris® shunt valve has an adjustable pressure setting ranging from 30-200mmHg, and there are three additional models that can be distinguished on radiographs by a marker and offer further pressure setting options.

Pressure settings

Sophysa Polaris shunt valves
Illustration of the various Polaris Sophysa models and their adjustable pressure settings. Figure adapted from Greenberg Handbook of Neurosurgery.

Imaging

Sophysa Polaris shunt on radiograph
Visualization of a Sophysa Polaris shunt valve on a lateral radiograph with a gravitational unit. This radiograph shows the SPV Standard model.

Further information

Editorial transparency

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Who created and updated this article, and which changes are documented.

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Edit · Alaric Steinmetz · (+7 −7)
  • Text changed: “The Polaris® Shunt System is distributed by Sophysa and is an adjustable shunt valve suitable for MRI up to 3 Tesla[^1]. The Polaris® shunt valve can be used together with the SiphonX® gravitational unit, which additionally provides 200mmH20 in the vertical position as protection against overdrainage.”“The Polaris® Shunt System is distributed by Sophysa and is an adjustable shunt valve compatible with MRI up to 3 Tesla[^1]. The Polaris® shunt valve can be used in conjunction with the SiphonX® gravitational unit, which additionally provides 200mmH20 in the vertical position as protection against overdrainage.”
  • Text changed: “Tabular Overview”“Tabular overview”
  • Text changed: “In the standard model (SPV), the Polaris® shunt valve has an adjustable pressure setting of 30-200mmHg. There are three additional models, which can be distinguished on radiographs by a marker and offer further pressure setting options.”“In the standard model (SPV), the Polaris® shunt valve has an adjustable pressure setting ranging from 30-200mmHg, and there are three additional models that can be distinguished on radiographs by a marker and offer further pressure setting options.”

Article created on · Alaric Steinmetz

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