Multi-lumen epidural-spinal needle
First Claim
1. A multi-lumen epidural-spinal needle comprising:
- a first lumen having a first axis;
a second lumen having a second axis; and
a tissue piercing point through which said first lumen and said second lumen exit, forming respectively a first opening and a second opening, said first axis and said second axis being parallel, and said openings diverging near said point such that a catheter exiting said first opening will be deflected along a path nearly perpendicular to said needle while said second opening essentially aligns with said second lumen.
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Accused Products
Abstract
The needle of the present invention is a multi-lumen needle and preferably a dual-lumen epidural-spinal needle. The needle of the present invention is provided with a hub, which allows for attachment of a syringe to one or more of the lumina, or alternatively the attachment of an adapter to which a syringe can be attached. Preferably the lumina have different cross sectional areas. The smaller of the lumina should be of sufficient size to allow a spinal neelde, guide wire, or micro-catheter to be inserted through the lumen. The larger of the two lumina should preferably be of sufficient size to allow an epidural catheter, spinal needle or guide wire to be introduced. The needle of the present invention has applications of regional anesthesia, chronic and post operative pain management, cricothyroid puncture, intracerebroventricular puncture and, access and drainage of concealed fluid collections within the body.
342 Citations
10 Claims
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1. A multi-lumen epidural-spinal needle comprising:
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a first lumen having a first axis; a second lumen having a second axis; and a tissue piercing point through which said first lumen and said second lumen exit, forming respectively a first opening and a second opening, said first axis and said second axis being parallel, and said openings diverging near said point such that a catheter exiting said first opening will be deflected along a path nearly perpendicular to said needle while said second opening essentially aligns with said second lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification