Patient-tailored, central-vein catheters
OwnerZbylut J. Twardowskiinventor
Life of this patent
Estimating the term…
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.
Claims18
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):
- DESIRED LENGTH (cm.) BSA RIJV RSCV LIJV LSCV m2 cm cm cm cm 1.20 22.6 23.5 25.1 26.6 1.25 23.0 24.0 25.6 27.1 1.30 23.4 24.4 26.0 27.6 1.35 23.8 24.8 26.5 28.1 1.40 24.2 25.3 26.9 28.5 1.45 24.6 25.7 27.4 29.0 1.50 25.0 26.1 27.8 29.5 1.55 25.4 26.5 28.3 30.0 1.60 25.8 27.0 28.7 30.4 1.65 26.2 27.4 29.1 30.9 1.70 26.6 27.8 29.6 31.4 1.75 27.0 28.3 30.0 31.9 1.80 27.4 28.7 30.5 32.3 1.85 27.8 29.1 30.9 32.8 1.90 28.2 29.5 31.4 33.3 1.95 28.6 30.0 31.8 33.8 2.00 28.9 30.4 32.3 34.3 2.10 29.7 31.3 33.2 35.2 2.20 30.5 32.1 34.1 36.2 2.30 31.3 33.0 34.9 37.1 2.45 32.5 34.3 36.3 38.5 2.60 33.7 35.6 37.6 40.0 2.75 34.9 36.8 39.0 41.4
- and implanting the venous catheter 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.
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:
- Actual Length (cm.) Inner Diameter (cm.) 22 0.156 23 0.157 24 0.159 25 0.161 26 0.162 27 0.164 28 0.165 29 0.167 30 0.168 31 0.170 32 0.171 33 0.172 34 0.174 35 0.175 36 0.176 37 0.177 38 0.178 39 0.180 40 0.181 41 0.182 42 0.183
- and implanting the venous catheter in the venous system of the patient.
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:
- Actual Length (cm.) Inner Diameter (cm.) 22 0.172 23 0.174 24 0.176 25 0.178 26 0.180 27 0.181 28 0.183 29 0.185 30 0.186 31 0.188 32 0.189 33 0.191 34 0.192 35 0.193 36 0.195 37 0.196 38 0.197 39 0.199 40 0.200 41 0.201 42 0.202
- and implanting the venous catheter in the venous system of the patient.
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:
- Actual Length (cm.) Inner Diameter (cm.) 22 0.185 23 0.187 24 0.189 25 0.191 26 0.193 27 0.195 28 0.197 29 0.198 30 0.200 31 0.202 32 0.203 33 0.205 34 0.206 35 0.208 36 0.209 37 0.211 38 0.212 39 0.214 40 0.215 41 0.216 42 0.218
- and implanting the venous catheter in the venous system of the patient.
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:
- Actual Length (cm.) Inner Diameter (cm.) 22 0.196 23 0.198 24 0.200 25 0.202 26 0.204 27 0.206 28 0.208 29 0.210 30 0.211 31 0.213 32 0.215 33 0.217 34 0.218 35 0.220 36 0.221 37 0.223 38 0.224 39 0.226 40 0.227 41 0.229 42 0.230
- and implanting the venous catheter in the venous system of the patient.
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):
- BSA RIJV RSCV LIJV LSCV m2 cm cm cm cm 1.20 11.1 13.4 13.9 16.5 1.25 11.2 13.5 14.1 16.7 1.30 11.4 13.7 14.2 16.9 1.35 11.5 13.8 14.4 17.1 1.40 11.7 13.9 14.6 17.3 1.45 11.9 14.1 14.8 17.5 1.50 12.0 14.2 15.0 17.7 1.55 12.2 14.4 15.1 17.9 1.60 12.3 14.5 15.3 18.1 1.65 12.5 14.6 15.5 18.3 1.70 12.6 14.8 15.7 18.5 1.75 12.8 14.9 15.9 18.7 1.80 12.9 15.1 16.1 18.9 1.85 13.1 15.2 16.2 19.1 1.90 13.2 15.3 16.4 19.3 1.95 13.4 15.5 16.6 19.5 2.00 13.5 15.6 16.8 19.7 2.10 13.8 15.9 17.1 20.1 2.20 14.2 16.2 17.5 20.5 2.30 14.5 16.5 17.9 20.9 2.45 14.9 16.9 18.4 21.5 2.60 15.4 17.3 19.0 22.1 2.75 15.8 17.7 19.5 22.7
- and implanting the venous catheter 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.
Dependencies are inferred from the claim text.