Measuring intracranial pressure using a cerebrospinal fluid shunt device
AssigneeChildren's Hospital Los Angeles
InventorsMatthew BORZAGE, Peter CHIARELLI, Joseph Hyunjong HA
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Abstract
Intracranial pressure is determined for a patient that has a cerebrospinal fluid (CSF) shunt. Intracranial pressure information is required to manage the care of patients with CSF shunts. Disclosed is a method by which information about intracranial pressures can be obtained using noninvasive measurements, such as an MRI scan. The method provides advantages of avoiding expensive, invasive surgeries and improves clinical patient outcomes due to the ability to monitor intracranial pressure and shunt function, and appropriately titrate patient-specific valve settings.
Claims20
A method for measuring intracranial pressure in a patient having a cerebrospinal fluid (CSF) shunt implant, the method comprising:
- setting the CSF shunt to a first flow setting;
- measuring, at the first flow setting, a first rate of CSF flow through the CSF shunt;
- setting the CSF shunt to a second flow setting;
- measuring, at the second flow setting, a second rate of CSF flow through the CSF shunt;
- and
- calculating the intracranial pressure using the measured first rate of CSF flow and the second rate of CSF flow.
A method, comprising:
- measuring a first flow rate across a cerebrospinal fluid (CSF) shunt at a first flow setting of the CSF shunt;
- measuring a second flow rate at a second flow setting of the CSF shunt;
- and
- measuring an intracranial pressure of a patient using at least the first and second flow rates.
A system, comprising:
- a device for measuring flow through a shunt;
- a shunt adjustment tool for changing flow through the shunt;
- and
- a server computer for measuring intracranial pressure of a patient using at least two different settings of the shunt using the shunt adjustment tool and at least two different flow measurements.
Dependencies are inferred from the claim text.