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US 11,534,336 B2Granted
Selective central nervous system treatment catheter and a method of using the same
OwnerRohit Khannainventor
Life of this patent
Estimating the term…
Abstract
An apparatus and method use a catheter for specific and discriminate treatment of central nervous system disease. With the catheter, selective hypothermia to the brain and/or the spinal cord for injury protection can be achieved without the need for systemic cooling. The catheter is also capable of draining excess cerebrospinal fluid.
Claims34
A catheter for central nervous system treatment, the catheter comprising:
- an outside wall;
- a first inside wall;
- and
- a second inside wall, wherein
- the outside wall, the first inside wall, and the second inside wall define a first lumen,
- the first inside wall and the outside wall define a second lumen,
- the second inside wall and the outside wall define a third lumen,
- the first lumen and the second lumen communicate at a distal portion of the catheter, the first lumen and the second lumen being adapted to have a coolant circulated therethrough, and
- only a distal end portion of the outside wall defining the third lumen has one or more holes, the one or more holes allowing the third lumen to communicate with the outside environment.
6 more elements
A catheter for central nervous system treatment, the catheter comprising:
- an outside wall;
- a first inside wall;
- and
- a second inside wall, wherein
- the first inside wall is straight,
- the second inside wall is straight,
- the outside wall and the first inside wall define a first lumen,
- the outside wall, the first inside wall and the second inside wall define a second lumen,
- the outside wall and the second inside wall define a third lumen,
- the first lumen and the second lumen communicate at a distal portion of the catheter, the first lumen and the second lumen being adapted to circulate a coolant in a closed loop through an external flow regulator connected to the catheter, and
- only a distal end portion of the outside wall defining the third lumen has one or more holes, the one or more holes allowing the third lumen to communicate with the outside environment.
8 more elements
A catheter for central nervous system treatment, the catheter comprising:
- an outside wall;
- a first inside wall;
- and
- a second inside wall, wherein
- the outside wall, the first inside wall, and the second inside wall define a first lumen,
- the outside wall and the first inside wall define a second lumen,
- the second inside wall and the outside wall define a third lumen,
- the first inside wall and the second inside wall are parallel to each other,
- the first lumen and the second lumen communicate at a distal portion of the catheter, the first lumen and the second lumen being adapted to have a coolant circulated therethrough, and
- only a distal end portion of the outside wall defining the third lumen has one or more holes, the one or more holes allowing the third lumen to communicate with the outside environment.
7 more elements
A method for treatment of a central nervous system, the method comprising:
- inserting a catheter into the central nervous system, the catheter including:
- an outside wall;
- a first inside wall;
- and
- a second inside wall, wherein
- the outside wall, the first inside wall, and the second inside wall define a first lumen,
- the first inside wall and the outside wall define a second lumen,
- the second inside wall and the outside wall define a third lumen,
- the first lumen and the second lumen communicate at a distal portion of the catheter, and
- only a distal end portion of the outside wall defining the third lumen has one or more holes, the one or more holes allowing the third lumen to communicate with the outside environment;
- and
- circulating a coolant through the first lumen and the second lumen.
9 more elements
Dependencies are inferred from the claim text.