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US 2004/0176742 A1Published application
Sleeve valve catheters
AssigneeMedtronic, Inc.
InventorsMary M. Morris, Timothy G. Laske, Kenneth T. Heruth, Michael R. Ujhelyi, Jesus W. Casas-Bejar, David S. Olson
Life of this patent
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Abstract
A catheter body includes an exit port over which a pressure responsive sleeve is formed that allows material to exit a lumen of the catheter body at a given pressure. In one embodiment, a surface of the sleeve is approximately flush with a surface of the catheter body. In another embodiment the sleeve includes a tapered edge.
Claims50
An medical device comprising a catheter, the catheter comprising:
- a catheter body including an interior surface defining a lumen and an exterior surface defining a first outer diameter and second outer diameter, the second outer diameter formed by a recessed area;
- an exit port formed within the recessed area of the catheter body to allow material to exit the lumen of the catheter body;
- and
- a pressure responsive sleeve fitting around the second outer diameter of the recessed area and covering the exit port, wherein an outer surface of the sleeve is substantially flush with the first outer diameter of the catheter body.
1 more element
An medical device comprising a catheter, the catheter comprising:
- a catheter body including an interior surface defining a lumen and an exterior surface;
- an exit port formed in the catheter body to allow material to exit the lumen of the catheter body;
- and
- a pressure responsive sleeve formed from molded liquid silicone rubber having a wall thickness between approximately 0.002 inch and approximately 0.010 inch, and including a tapered edge wherein the sleeve surrounds a portion of the exterior surface of the catheter body and covers the exit port.
1 more element
Dependencies are inferred from the claim text.