Dialysis catheter
AssigneeRex Medical, L.P.
InventorsJames F. McGuckin, Jr., Michael W. Paris, Paul Tashjian, Peter W. J. Hinchliffe
Life of this patent
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Abstract
A catheter for delivering and withdrawing blood from a patient's body comprising a catheter body having a distal portion, a central return lumen extending from a proximal portion of the catheter body to the distal portion to allow blood passage therethrough, at least three longitudinally extending intake lumens independent of the return lumen and radially displaced with respect to the return lumen, and means for enabling simultaneous cut off of fluid flow to the at least three longitudinally extending lumens.
Claims20
A catheter for delivering and withdrawing blood from a patient's body, the catheter comprising:
- a catheter body having a distal portion, a return lumen extending from a proximal portion of the catheter body to the distal portion to allow blood passage therethrough, and at least three longitudinally extending intake lumens independent of the return lumen, the intake lumens radially displaced with respect to the return lumen;
- at least three intake extension tubes each communicating with one of the at least three intake lumens to provide fluid communication with the respective intake lumen;
- and
- an outer sleeve retaining the at least three extension tubes, the outer sleeve dimensioned to receive a clamping member such that the clamping member seals off fluid flow in all intake extension tubes.
A catheter for delivering and withdrawing blood from a patient's body, the catheter comprising:
- a catheter body having a distal portion, a return lumen extending from a proximal portion of the catheter body to the distal portion to allow blood passage therethrough, and a plurality of longitudinally extending intake lumens independent of the return lumen, the intake lumens radially displaced with respect to the return lumen;
- an intake extension tube for providing fluid communication with each of the intake lumens;
- and
- a clamping member for sealing off fluid flow to all of the intake lumens.
A catheter for delivering and withdrawing blood from a patient's body, the catheter comprising:
- a catheter body having an outer wall, a distal portion, a central return lumen extending from a proximal portion of the catheter body to the distal portion to allow blood passage therethrough, and at least three longitudinally extending intake lumens independent of the return lumen, the intake lumens radially displaced with respect to the central return lumen;
- and
- means for enabling substantial simultaneous cut off of fluid flow to the at least three longitudinally extending lumens.
Dependencies are inferred from the claim text.