Subarachnoid epidural shunt
AssigneeCodman & Shurtleff, Inc.
InventorBradley Glenn
Life of this patent
Estimating the term…
Abstract
Methods and devices are provided for shunting fluid to treat hydrocephalous, and in particular for treating normal pressure hydrocephalous, or Alzheimer's, Idiopathic Intracranial Hypertension (IIH), or any other condition in which it is necessary to drain and/or cleanse CSF. The methods and devices utilize a shunt having an inlet port, and outlet port, and a flow control component for controlling fluid flow from the inlet port to the outlet port. The shunt can be implanted at a location along or within a patient's spinal column. In one exemplary embodiment, an inlet port of a shunt can be implanted within the subarachnoid space, and an outlet port of a shunt can be implanted at a drainage site. In certain exemplary embodiments, the cerebrospinal fluid is drained into the epidural space.
Claims20
A shunt device, comprising:
- a housing having at least a portion configured to be disposed within a bone hole and having a fluid flow pathway formed therethrough and extending between a fluid inlet port and a fluid outlet port formed in the housing, the fluid inlet and outlet ports being spaced apart from one another such that the fluid inlet port can be located adjacent a source of cerebrospinal fluid and the fluid outlet port can be located adjacent to a body cavity capable of accommodating cerebrospinal fluid drainage, and the fluid flow pathway being configured to control fluid flow between the fluid inlet and outlet ports.
A shunt device, comprising:
- a sleeve adapted to be anchored within a bone hole and having a lumen extending therethrough;
- a housing having a fluid flow pathway formed therethrough and a flow control component disposed within the fluid flow pathway for controlling fluid flow therethrough, and an elongate member extending from the housing and removably disposed within the lumen in the sleeve, the elongate member include inlet and outlet ports in fluid communication with the fluid flow pathway in the housing.
A method of shunting fluid, comprising:
- positioning an inlet port of a shunt at a location within a patient's body in which cerebrospinal fluid can flow into the inlet port;
- anchoring a flow control component of the shunt to a vertebra, the flow control component being disposed between the inlet port and an outlet port of the shunt for controlling cerebrospinal fluid flow from the inlet port to the outlet port;
- and
- positioning the outlet port of the shunt at a location within the patient's body in which cerebrospinal fluid flowing from the outlet port can be drained.
Dependencies are inferred from the claim text.