Patient-tailored, central-vein catheters

• US 6,592,565 B2
• Filed: 04/26/2001
• Issued: 07/15/2003
• Est. Priority Date: 04/26/2001
• Status: Expired due to Fees

• Current Assignee: Zbylut J. Twardowski
• Original Assignee: Zbylut J. Twardowski
• Inventors: Twardowski, Zbylut J.
• Primary Examiner(s): Yuen, Henry C.
• Assistant Examiner(s): BUECHNER, PATRICK M
• Application Number:
  US09/844,578
• Publication Number:
  US 20030023198A1
• Time in Patent Office: 810 Days
• Field of Search: 604/174, 604/175, 604/523, 604/117, 604/19, 604/500, 604/264, 604/508, 128/898
• US Class Current: 604/500
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00

Abstract

The method of selecting and implanting a permanent venous catheter into a patient for use in chronic, extracorporeal blood treatment procedures. The method comprises determining the Body Surface Area of the patient. One then selects a permanent venous catheter having an actual length which is within 10% of a desired length as indicated in a Table found in this application for the Body Surface Area of the particular patient and a particular vein through which the catheter is to extend. Also, the internal diameter of the tubing is preferably adjusted in a manner correlating with the catheter length. Following catheter selection, the venous catheter is implanted in the venous system of the patient with the distal tip of the catheter being in or adjacent to the upper right atrium of the heart.

Claims

1. The method of selecting and implanting a permanent venous catheter into a patient for use in chronic extracorporeal blood treatment procedures, which comprises:

determining the Body Surface Area (BSA) of the patient;

selecting a permanent venous catheter having an actual length from the catheter distal tip to its integral, proximal end which is within ten percent of a desired length in cm. as indicated in the Table below for the Body Surface Area of the particular patient and a particular vein through which the catheter is to extend (RIJV;

RSCV;

LIJV;

or LSCV);

2. The method of claim 1, further including the step of:

after selecting said actual length for a catheter within 10 percent of said desired length and said particular vein, selecting a desired flow rate of 150 to 250 ml. per minute; and

obtaining a catheter having said actual length and an actual inner diameter within 3 percent of a desired inner diameter indicated in the Table below for the actual length;

3. The method of claim 2, in which said actual inner diameter is within 2 percent of the desired inner diameter.

4. The method of claim 1, further including the step of:

after selecting said actual length for a catheter within 10 percent of said desired length and said particular vein, selecting a desired flow rate of 250 to 350 ml. per minute; and

obtaining a catheter having said actual length and an actual inner diameter within 3 percent of a desired inner diameter indicated in the Table below for the actual length;

5. The method of claim 4 in which said actual inner diameter is within 2 percent of the desired inner diameter.

6. The method of claim 1, further including the step of:

after selecting said actual length for a catheter within 10 percent of said desired length and said particular vein, selecting a desired flow rate of 350 to 450 ml. per minute; and

obtaining a catheter having said actual length and an actual inner diameter within 3 percent of a desired inner diameter indicated in the Table below for the actual length;

7. The method of claim 6 in which said actual inner diameter is within 2 percent of the desired inner diameter.

8. The method of claim 1, further including the step of:

after selecting said actual length within 10 percent of said desired length and said particular vein, selecting a desired flow rate of 450 to 550 ml. per minute; and

obtaining said catheter having an actual inner diameter within 3 percent of the desired inner diameter indicated in the Table below for the actual length;

9. The method of claim 8 in which said actual inner diameter is within 2 percent of the desired inner diameter.

10. The method of selecting and implanting a permanent venous catheter into a patient for use in chronic extracorporeal blood treatment procedures, which comprises:

selecting a desired flow rate of 150 to 250 ml. per minute for a catheter to be implanted in a patient;

selecting a permanent venous catheter having an actual length from the catheter distal tip to its integral, proximal end of 22-42 cm., said catheter having a lumen with an actual inner diameter within 3 percent of a desired inner diameter indicated in the Table below for the particular actual length;

11. The method of claim 10 in which said actual inner diameter is within 2 percent of the desired inner diameter.

12. The method of selecting and implanting a permanent venous catheter into a patient for use in chronic extracorporeal blood treatment procedures, which comprises:

selecting a desired flow rate of 250 to 350 ml. per minute for a catheter to be implanted in a patient;

selecting a permanent venous catheter having an actual length from the catheter distal tip to its integral, proximal end of 22-42 cm., said catheter having a lumen with an actual diameter within 3 percent of a desired inner diameter indicated in the Table below for the particular actual length;

13. The method of claim 12 in which said actual inner diameter is within 2 percent of the desired inner diameter.

14. The method of selecting and implanting a permanent venous catheter into a patient for use in chronic extracorporeal blood treatment procedures, which comprises:

selecting a desired flow rate of 350 to 450 ml. per minute for a catheter to be implanted in a patient;

selecting a permanent venous catheter having a actual length from the catheter distal tip to its integral, proximal end of 22-42 cm., said catheter having a lumen with an actual inner diameter within 3 percent of a desired inner diameter indicated in the Table below for the particular actual length;

15. The method of claim 14 in which said actual inner diameter is within 2 percent of the desired inner diameter.

16. The method of selecting and implanting a permanent venous catheter into a patient for use in chronic extracorporeal blood treatment procedures, which comprises:

selecting a desired flow rate at least 450 ml. per minute for a catheter to be implanted in a patient;

selecting a permanent venous catheter having an actual length from the catheter distal tip to its integral, proximal end of 22-42 cm., said catheter having a lumen with an actual inner diameter within 3 percent of a desired inner diameter indicated in the Table below for the particular actual length;

17. The method of claim 16 in which said actual inner diameter is within 2 percent of the desired inner diameter.

18. The method of selecting and implanting a permanent venous catheter into a patient for use in chronic extracorporeal blood treatment procedures, which comprises:

determining the Body Surface Area (BSA) of the patient;

selecting a permanent venous catheter having an actual length from the catheter distal tip to the point on the catheter where it is to penetrate the wall of a desired vein into which it is to be implanted, said actual length of the catheter being within 10% of a desired length as indicated below for the Body Surface Area (BSA) of the particular patient, and the particular vein through which the catheter is to extend (RJIV;

RSCV;

LIJV;

or LSCV);