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Dialysis catheter

  • US 7,258,685 B2
  • Filed: 11/28/2005
  • Issued: 08/21/2007
  • Est. Priority Date: 11/29/2004
  • Status: Expired due to Fees
First Claim
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1. A catheter assembly for at least semi-permanent retention in a patient, said assembly comprising:

  • an elongate catheter having a proximal end for disposition externally of the patient, a distal end for disposition in the patient and at least two lumens extending between the ends, the proximal end of the catheter being trimmable for achieving a selected length between the proximal and distal ends of the catheter;

    a subcutaneous tube having opposite proximal and distal ends, the subcutaneous tube being mounted over the catheter for movement to a selected distance from the distal end of the catheter;

    a fibrosing means disposed on the subcutaneous tube and selectively positionable along the catheter as the subcutaneous tube is moved to the selected distance from the distal end of the catheter, the fibrosing means promoting a growth of scar tissue for anchoring the catheter assembly in the patient;

    a cap having opposite proximal and distal ends and a passage extending therebetween, proximal portions of the catheter being in the passage, a locking member retained in the passage of the cap and surrounding a portion of the catheter, the proximal end of the subcutaneous tube being mounted to the cap and communicating with the passage; and

    a hub assembly mounted at the proximal end of the cap and urging the locking member into engagement with the catheter, the hub assembly including tubes for communicating respectively with the lumens of the catheter, whereby the subcutaneous tube and the cap are positioned along the catheter to achieve a selected distance between the fibrosing means and the distal end of the catheter and whereby the hub subassembly is mounted to the proximal end of the cap after the tube has been trimmed to a selected length.

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