IP Library Granted Patent US 8,795,517
Granted Patent B2
US 8,795,517 · App. 13/960,234 · Granted Aug 5, 2014

Machine readable medium embodying instructions for citrate anticoagulation system for extracorporeal blood treatments

Inventor: Jean-Michel Lannoy (Anstaing, FR)
Assignee: Nikkiso Co., Ltd.
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Quick Facts
Patent No.
US 8,795,517
App. No.
13/960,234
Granted
Aug 5, 2014
Kind
B2
Abstract

A machine-readable medium with instructions for pumping blood from a patient's blood stream into an access line, introducing an anticoagulant solution into the pumped blood, filtering the pumped blood and delivering it to a return line, introducing a substitution fluid into the pumped blood, introducing a calcium and magnesium solution into the blood traveling through the return line, and returning the blood back to the patient's blood stream.

Claims (28)

1. A machine-readable medium embodying instructions that may be performed by one or more processors, the instructions comprising:

instructions for pumping blood from a patient's blood stream into an access line;

instructions for introducing an anticoagulant solution into the pumped blood;

instructions for filtering the pumped blood;

instructions for delivering the pumped blood from the filtering step to a return line;

instructions for introducing a substitution fluid into the pumped blood;

instructions for introducing a calcium and magnesium solution into the blood traveling through the return line; and

instructions for returning the blood back to the patient's blood stream.

2. The machine-readable medium of claim 1 , wherein the substitution fluid is introduced into the access line.

3. The machine-readable medium of claim 1 , wherein the substitution fluid is introduced into the return line.

4. The machine-readable medium of claim 1 , wherein the substitution fluid is introduced into the access line and into the return line.

5. The machine-readable medium of claim 1 , further comprising instructions for monitoring the blood pressure in the access line.

6. The machine-readable medium of claim 1 , further comprising instructions for monitoring the blood pressure in the return line.

7. The machine-readable medium of claim 1 , further comprising:

instructions for exporting through a filtrate line a filtrate obtained from the filtering step; and

instructions for monitoring the pressure in the filtrate line to control filtrate pressurization.

8. The machine-readable medium of claim 1 , further comprising:

instructions for exporting through a filtrate line a filtrate obtained from the filtering step; and

instructions for detecting blood leakage in the filtrate line to control leakage of blood cells through the filter.

9. The machine-readable medium of claim 1 , further comprising:

instructions for exporting through a filtrate line a filtrate collected from the filtering step;

instructions for storing the filtrate traveling through the filtrate line in a reservoir;

instructions for weighing the filtrate stored in the reservoir; and

instructions for computing the amount of substitution fluid introduced in the blood from the weighing step.

10. The machine-readable medium of claim 1 , further comprising:

instructions for detecting air bubbles from the blood introduced with the substitution fluid; and

instructions for removing air bubbles from the blood before it is returned into the patient's blood stream.

11. The machine-readable medium of claim 1 , further comprising instructions for heating the substitution fluid introduced into the blood to a temperature substantially equal to the patient's body temperature.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2014
From: BAXTER HEALTHCARE SA; BAXTER INTERNATIONAL INC.
To: NIKKISO CO., LTD.
Reel/Frame 032210/0629 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2013
From: EDWARDS LIFESCIENCES CORPORATION
To: BAXTER INTERNATIONAL INC.; BAXTER HEALTHCARE SA
Reel/Frame 031584/0043 →
Priority Claims (1)
EP 99201302 · Apr 26, 1999 · regional
Continuity (6)
Division 13359109 · Jan 26, 2012
Division 11602827 · Nov 21, 2006
Continuation In Part 10742137 · Dec 19, 2003
Continuation In Part 09959543
Provisional Application 60739086 · Nov 22, 2005
Related Publication 20130323122A1 · Dec 5, 2013