Fluid catheter device for recording brain state
AssigneeBiogen MA Inc.
InventorsDaniel J. Abrams, Matias Maturana
Life of this patent
Estimating the term…
Abstract
A device or system for delivering fluid to or removing fluid from a CSF-containing space of a brain and for recording electrical activity from white or grey matter in the brain includes a catheter including a proximal end, a distal end portion, a first lumen extending from the proximal end to the distal end portion, and one or more electrodes positioned relative to the catheter a distance from a distal end of the catheter, such that the one or more electrodes would be placed in contact with white or grey matter of the brain if the distal end of the catheter were positioned in the CSF-containing space. The catheter may include the electrodes or a lead adjacent the catheter may include the electrodes.
Claims22
A device or system for delivering fluid to or removing fluid from a cerebrospinal fluid (CSF)-containing space of a brain and for recording electrical activity from white or grey matter in the brain, the device or system comprising:
- a CSF catheter comprising a proximal end, a distal end portion, and a first lumen extending from the proximal end to the distal end portion;
- and
- an electrode positioned a distance from a distal end of the CSF catheter such that the electrode would be placed in contact with white or grey matter of the brain if the distal end of the CSF catheter were positioned in the CSF-containing space.
A device or system comprising:
- an implantable access port, the access port comprising:
- an opening accessible by a needle when the access port is implanted;
- a first catheter connector;
- a second catheter connector;
- a first fluid flow path extending from the opening to the first catheter connector;
- and
- a second fluid flow path extending from the second catheter connector to the first catheter connector;
- a CSF catheter coupled to, or operably couplable to, the first catheter connector,
- the CSF catheter comprising a proximal end, a distal end portion, and first and second lumens extending from the proximal end to the distal portion of the CSF catheter;
- and
- an electrode,
- wherein the first lumen is in communication with the first fluid flow path and the second lumen is in communication with the second fluid flow path when the proximal end of the CSF catheter is coupled to the first catheter connector,
- wherein the CSF catheter has a length such that a distal end is configured to extend to a CSF-containing space of a subject when the access port is implanted,
- wherein the electrode is positioned a distance from the distal end of the CSF catheter such that the electrode is positioned in white or grey matter of a brain of the subject when the access port is implanted and the distal end of the CSF catheter is positioned in the CSF-containing space.
Dependencies are inferred from the claim text.