Back to results
US 2010/0076404 A1Published application
Subarachnoid catheters configured to facilitate circulatory fluid flow
OwnerLawrence Scott Ringinventor
Life of this patent
Estimating the term…
Abstract
Catheters, with an internal lumen and distal apertures, that are configured such that physiological factors will cause bodily fluid to move in an out of the distal apertures and the portion of internal lumen adjacent to the apertures, as well as axially and/or angularly along the outer surface of the catheter adjacent to the apertures.
Claims17
A catheter, comprising:
- a tubular catheter body including a wall, a distal portion and a lumen that extends to the distal portion;
- a plurality of apertures that extend through the wall of the distal portion to the lumen, at least two of the apertures being both axially and angularly offset from one another;
- and
- at least one channel which fluidly connects the at least two apertures that are both axially and angularly offset.
1 more element
A catheter, comprising:
- a tubular catheter body including a wall, a distal portion, an outer surface and a lumen that extends to the distal portion;
- a plurality of apertures that extend through the wall of the distal portion to the lumen, at least two of the apertures being both axially and angularly offset from one another;
- and
- at least one spiral shaped member projecting outwardly from the outer surface of the distal portion.
1 more element
A catheter for providing drugs to the subarachnoid space between the brain or spinal cord and the arachnoid mater, the subarachnoid space including cerebrospinal fluid, the catheter comprising:
- a tubular catheter body including a distal portion and a lumen that extends to the distal portion;
- a plurality of axially and angularly offset apertures that extend through the distal portion to the lumen;
- and
- means, associated with the distal portion of the catheter body, for facilitating the axial, radial and angular flow of drugs and cerebrospinal fluid relative to the catheter distal portion in response to physiological factors.
1 more element
A catheter, comprising:
- a tubular catheter body including a distal portion, a distal end and a lumen that extends to the distal portion, the distal portion defining first, second and third axially offset distal portion regions, the second distal portion region extending to the distal end, the third distal portion region being located between the first and second distal portion regions, and the first and second distal portion regions having circumferences of substantially the same size;
- a plurality of apertures that extend through the distal portion to the lumen within the third distal portion region;
- and
- a plurality of indentations and protrusions located within the third distal portion region.
1 more element
Dependencies are inferred from the claim text.