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US 10,207,089 B2Granted
Cerebrospinal fluid flow diverter
OwnerVictor M. Haughtoninventor
Life of this patent
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Abstract
A device that can be placed within or near the cranial vault that fluctuates in size in response to changes in CSF pressure is disclosed. The device diminishes in size when CSF pressures rise and increases in size as CSF pressures diminish. The device has the effect of reducing the flow of CSF occurring in the foramen magnum and provides an alternative to craniovertebral decompression in Chiari I patients. The device may have applications in other neurologic illnesses associated with abnormal CSF flow, such as Idiopathic Syringomyelia, Normal Pressure Hydrocephalus, and CSF dural leaks.
Claims14
A cerebrospinal fluid flow diverter, comprising:
- a cover level having a cover top side and a cover underside, the cover level comprising a cap-like structure having a plurality of securing holes from the cover top side through the cover underside;
- a membrane level, the membrane level comprising a circular tub-like structure having a plurality of membrane level securing members, a flexible membrane, a tapered side portion, and a chamber;
- a retaining level, the retaining level comprising a ring-like structure having a substantially circular retaining member with a hollow center;
- wherein the membrane level is attached to the cover underside by securing the plurality of membrane level securing members between the substantially circular retaining member and the cover underside so that the flexible membrane, the tapered side portion, and the chamber pass through the hollow center of the substantially circular retaining member and the top of the chamber is covered by the cover underside;
- wherein the chamber is filled with compressible matter;
- wherein after the tapered side portion and the flexible membrane are inserted in a skull of a patient, the volume of the chamber is selectively increased and decreased in volume by the ongoing displacement of the flexible membrane during a cardiac cycle in the patient, thereby modulating the cerebrospinal flow in the patient.
3 more elements
Dependencies are inferred from the claim text.