Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1990-12-06
1992-08-04
Wilson, John J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604158, A61M 5178
Patent
active
051355019
ABSTRACT:
A through the needle catheter is provided where the needle is splittable after removal and the catheter material is formed from an extremely hydrophilic polymer. Upon removal of the needle, the catheter expands with contact to water and other aqueous solutions, such as blood or intravenous dosages. Upon expansion, the outer diameter of the catheter tube seals the tube within the body tissue preventing leakage from the body tissue around the tube. Also, the inner diameter of the catheter tube expands to allow higher infustion flow rates of intravenous fluids into the body.
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Coletti Paul A.
Ethicon Inc.
Smith Jeffrey A.
Wilson John J.
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