Multiple hole epidural catheter
First Claim
1. A device for continuous epidural analgesia comprising:
- an epidural catheter having a single passageway with an end hole and a plurality of side holes, wherein said end hole is smaller in diameter than said side holes for providing flow of epidural analgesic through the passage way and out through said end hole and side holes.
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Accused Products
Abstract
An epidural catheter which combines the benefits of the open-end and closed-end three lateral holes type catheters. The epidural catheter of the present invention is designed to include an end hole and a plurality of lateral holes epidural catheter. The combined end and multiple lateral holed epidural catheter of the present invention includes seven holes within a 1.5 cm head. The holes are positioned along the head such that one hole is provided at the tip, three lateral holes are circumferentially arranged about the head at approximately 1 mm from each other, and three additional holes are axially displaced from one another by approximately 4 mm. All the holes are within the 1.5 cm from the tip. The radius of each of the lateral holes is the same, thus, the anesthetic solution stream is the same from each hole.
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Citations
17 Claims
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1. A device for continuous epidural analgesia comprising:
an epidural catheter having a single passageway with an end hole and a plurality of side holes, wherein said end hole is smaller in diameter than said side holes for providing flow of epidural analgesic through the passage way and out through said end hole and side holes. - View Dependent Claims (2, 3, 4, 5)
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6. An epidural catheter comprising:
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a tubular member with a single passageway through its interior and having a distal tip; a first portion of said tubular member including a first plurality of holes; a second portion of said tubular member including a second plurality of holes; and one of said first plurality of holes positioned at a tip of said first portion, said one of said first plurality of holes being smaller in diameter than the remainder of said first plurality of holes and said second plurality of holes for providing flow of epidural analgesic through the single passageway and out through said first and second plurality of holes. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification