Catheter system for intracranial treatment
First Claim
1. A catheter system for intracranial treatment of a patient comprising:
- an outer catheter having an opening, at least one open aperture at a distal end, and a lumen in communication with respect to the opening and the aperture, the aperture being coaxial with the lumen and the outer catheter being adapted for insertion into the brain of the patient; and
at least first and second inner catheters chosen from a plurality of different inner catheters for delivering a treatment agent to a select tissue region of the patient'"'"'s brain, each inner catheter having a substantially identical outer diameter so that each inner catheter is adapted to be individually received within the lumen, the lumen snugly receiving each inner catheter and guiding each inner catheter to the tissue region, each inner catheter being adapted to extend through the aperture when inserted into the lumen and having a passageway and at least one port in communication with the passageway, the first inner catheter having a first length for delivering the treatment agent to a first tissue region and the second inner catheter having a second length for delivering the treatment agent to a second tissue region.
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Accused Products
Abstract
A catheter system is provided having an outer catheter and at least one inner catheter chosen from a plurality of different inner catheters for delivery of a treatment agent to a selected tissue region of the brain. The outer catheter has a lumen in communication with an opening and at least one aperture. Each inner catheter is sized to be received within the lumen and has a passageway and at least one port in communication with that passageway. The system preferably has inner catheters having different lengths and/or passageways with different diameters. The outer catheter can include an element that monitors brain activity. The outer catheter can also have an inflatable balloon proximal to an element. A method of delivering a treatment agent, preferably a drug, to a select tissue region of a targeted area of the brain for intracranial treatment of a patient is also disclosed.
72 Citations
27 Claims
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1. A catheter system for intracranial treatment of a patient comprising:
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an outer catheter having an opening, at least one open aperture at a distal end, and a lumen in communication with respect to the opening and the aperture, the aperture being coaxial with the lumen and the outer catheter being adapted for insertion into the brain of the patient; and at least first and second inner catheters chosen from a plurality of different inner catheters for delivering a treatment agent to a select tissue region of the patient'"'"'s brain, each inner catheter having a substantially identical outer diameter so that each inner catheter is adapted to be individually received within the lumen, the lumen snugly receiving each inner catheter and guiding each inner catheter to the tissue region, each inner catheter being adapted to extend through the aperture when inserted into the lumen and having a passageway and at least one port in communication with the passageway, the first inner catheter having a first length for delivering the treatment agent to a first tissue region and the second inner catheter having a second length for delivering the treatment agent to a second tissue region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification