Back to results
US 4,772,268 AGranted
Two lumen hemodialysis catheter
AssigneeCook Incorporated
InventorBrian L. Bates
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCook Incorporated
InventorBrian L. Bates
Estimating the term…
A dual lumen hemodialysis catheter. The catheter includes a tube having a circular external cross section which is rotatably received within a fitting. The fitting may be attached to the patient by sutures or the like and rotatably mounts the tube of the catheter. Stop means are provided on opposite sides of the fitting preventing the tube of the catheter from moving longitudinally relative to the fitting. The catheter may be rotated relative to the fitting in order to readjust the rotational position of the tube inside the patient's blood vessel without longitudinal movement of the tube. The catheter is cut off at its distal end perpendicularly to the length of the tube in order to define the mouth of one lumen. The tube is tapered from the cut off distal end to a point proximal of the distal end, said point being approximately 3 cm from the distal end. The taper of the tube defines at least a portion of the mouth of the second lumen.
A catheter comprising a tube having a circular external cross section, a fitting rotatably mounted on said tube so as to surround said cross section, said tube being fully 360.degree. rotational about its axis relative to said fitting, said fitting having a projection adapted to be attached to the skin of a patient whose blood vessel is percutaneously catheterized by said catheter, and stop means fixed to said tube on opposite sides of said fitting and preventing said tube from moving longitudinally relative to said fitting while said tube is fully 360.degree. rotational relative to said fitting, whereby said catheter can be rotated relative to said fitting in order to readjust the rotational position of said tube inside the blood vessel without longitudinal movement of the tube and without separating the attachment of the projection to the skin.
Dependencies are inferred from the claim text.