Dialysis system having autoidentification mechanism

• US 10,335,532 B2
• Filed: 10/02/2013
• Issued: 07/02/2019
• Est. Priority Date: 07/05/2007
• Status: Active Grant

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Childers, Robert W., Holmquist, Kurt, Hopping, Peter A.
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): Wilson, Larry R.
• Application Number:
  US14/044,597
• Publication Number:
  US 20140027380A1
• Time in Patent Office: 2,099 Days
• CPC Class Codes: A61M 1/1522 the interface being evacuated interfaces to enhance contact
• CPC Class Codes: A61M 1/1524 the interface providing means for actuating on functional elements of the cassette, e.g. plungers
• CPC Class Codes: A61M 1/153 the cassette being adapted for heating or cooling the treating fluid, e.g. the dialysate or the treating gas
• CPC Class Codes: A61M 1/155 with treatment-fluid pumping means or components thereof
• CPC Class Codes: A61M 1/1561 at least one cassette surface or portion thereof being flexible, e.g. the cassette having a rigid base portion with preformed channels and being covered with a foil
• CPC Class Codes: A61M 1/1565 Details of valves
• CPC Class Codes: A61M 1/159 specially adapted for peritoneal dialysis
• CPC Class Codes: A61M 1/1656 Apparatus for preparing dialysates
• CPC Class Codes: A61M 1/166 Heating for sterilisation A61M1/1686
• CPC Class Codes: A61M 1/1668 Details of containers
• CPC Class Codes: A61M 1/167 Flexible packaging for solid concentrates
• CPC Class Codes: A61M 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 1/282 Operational modes
• CPC Class Codes: A61M 1/284 Continuous flow peritoneal dialysis [CFPD]
• CPC Class Codes: A61M 1/287 Dialysates therefor
• CPC Class Codes: A61M 1/288 Priming priming in extracorporeal blood circuits A61M1/3643
• CPC Class Codes: A61M 2205/122 using evacuated interfaces to enhance contact
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/70 with testing or calibration facilities
• CPC Class Codes: A61M 2209/084 : Supporting bases, stands for equipment
• CPC Class Codes: Y10S 604/905 : Aseptic connectors or couplings, e.g. frangible, piercable
• CPC Class Codes: Y10T 29/49826 : Assembling or joining

Abstract

A dialysis system is disclosed including an autoconnection mechanism. The autoconnection mechanism in an embodiment is configured such that (i) a tip protector remover is translated in a first direction towards a plurality of supply line connectors, (ii) the tip protector remover is locked to each of a plurality of supply line tip protectors connected to the plurality of supply line connectors, (iii) the tip protector remover is translated in a second direction away from the plurality of supply line connectors to remove the plurality of supply line tip protectors from the supply line connectors, the tip protector remover is translated in a third direction different from the first and second directions, and (v) solution line connectors are translated towards the supply line connectors to connect each of the solution line connectors to one of the supply line connectors.

Claims

1. A dialysis system comprising:

a dialysis instrument including at least one pump actuator;

a disposable cassette operable with the at least one pump actuator;

a plurality of disposable cassette supply connections;

a plurality of dialysis solution lines, each of the plurality of dialysis solution lines connected to a dialysis solution supply container and including a dialysis solution line connector;

an autoidentification mechanism configured to automatically identify information associated with each of the dialysis solution line connectors to determine each of (i) dialysis solution type, (ii) dialysis solution volume, and (iii) a number of the dialysis solution supply containers to supply the dialysis instrument for a treatment, the autoidentification mechanism further configured to automatically (a) image a geometry of each of the dialysis solution line connectors, and (b) compare the imaged geometry to a range of stored imaged geometries to determine

whether any of the dialysis solution line connectors is improperly positioned,

whether any of the dialysis solution line connectors is deformed, and

whether any of the dialysis solution line connectors is unmatched with respect to a particular therapy prescription; and

a controller configured to allow dialysis solution to be automatically drawn from the dialysis solution supply containers if the autoidentification mechanism confirms that correct dialysis solution supply containers are connected.

2. The dialysis system of claim 1, wherein an end of each of the dialysis solution line connectors includes a code, and wherein the autoidentification mechanism is configured to read the codes to determine each of (i) the dialysis solution type, (ii) the dialysis solution volume, and (iii) the number of the dialysis solution supply containers.

3. The dialysis system of claim 2, wherein the controller is configured to store a character recognition routine, the character recognition routine configured to read the codes to determine each of (i) the dialysis solution type, (ii) the dialysis solution volume, and (iii) the number of the dialysis solution supply containers.

4. The dialysis system of claim 2, wherein the autoidentification mechanism includes a camera configured to read the codes.

5. The dialysis system of claim 4, wherein the camera includes a charge-coupled device image sensor and an array of light-sensitive capacitors.

6. The dialysis system of claim 4, wherein the camera is configured to create a three-dimensional image.

7. The dialysis system of claim 1, wherein the plurality of disposable cassette supply connections are connected fluidly to the disposable cassette via supply lines.

8. The dialysis system of claim 1, wherein at least one of the autoidentification mechanism and the controller is provided as part of the dialysis instrument.

9. The dialysis system of claim 1, wherein the autoidentification mechanism is provided as part of the dialysis instrument.

10. A dialysis system comprising:

a dialysis instrument including at least one pump actuator;

a disposable cassette operable with the at least one pump actuator;

a plurality of disposable cassette supply connections;

a plurality of dialysis solution lines, each of the plurality of dialysis solution lines connected to a dialysis solution supply container and including a solution line connector; and

an autoidentification mechanism configured to automatically (i) image a geometry of each of the solution line connectors, and (ii) compare the imaged geometry to a range of stored imaged geometries to determine

whether any of the dialysis solution line connectors is improperly positioned, and

whether any of the dialysis solution line connectors is deformed or

whether any of the dialysis solution line connectors is unmatched with respect to a particular therapy prescription.

11. The dialysis system of claim 10, wherein the dialysis instrument includes a plurality of line occluding clamps, and wherein the autoidentification mechanism is further configured such that if one of the plurality of dialysis solution lines is improperly positioned or deformed, at least one of (i) an alarm is activated, (ii) the clamps are prevented from opening, or (iii) the clamps are closed.

12. The dialysis system of claim 10, wherein the autoidentification mechanism is further configured such that an alarm is activated if one of the plurality of dialysis solution lines is improperly positioned or deformed.

13. The dialysis system of claim 10, wherein the plurality of disposable cassette supply connections are connected fluidly to the disposable cassette via supply lines.

14. A dialysis method comprising:

automatically identifying markings associated with a plurality of dialysis solution lines connectable to a plurality of disposable pumping cassette supply connections;

imaging a geometry for each of a plurality of dialysis solution line connectors connected to the plurality of dialysis solution lines;

processing the automatically identified markings to determine each of (i) a dialysis solution type, (ii) a dialysis solution volume, and (iii) a number of dialysis solution supply containers associated with the plurality of dialysis solution lines for consumption during a dialysis treatment;

comparing the imaged geometry to a range of stored imaged geometries to determine

whether any of the plurality of dialysis solution line connectors is deformed, and

whether any of the plurality of dialysis solution line connectors is unmatched with respect to a particular therapy prescription; and

allowing dialysis solution to be automatically drawn from the dialysis solution supply containers if the processing confirms that correct dialysis solution supply containers are connected.

15. The dialysis method of claim 14, wherein automatically identifying the markings associated with the plurality of dialysis solution line connectors includes reading codes.

16. The dialysis method of claim 15, wherein reading codes includes reading codes located at the ends of the plurality of dialysis solution line connectors.

17. The dialysis method of claim 15, which includes using a character recognition routine stored in a controller to read the codes.

18. The dialysis method of claim 14, wherein automatically identifying the markings associated with the plurality of dialysis solution line connectors includes visually identifying information associated with the plurality of dialysis solution line connectors.

19. The dialysis method of claim 18, wherein the visually identifying includes using a camera.

20. The dialysis method of claim 14, which includes activating an alarm if it is determined that the dialysis solution line connectors are either of deformed or unmatched with respect to a particular therapy prescription.

21. The dialysis method of claim 14, which includes identifying whether dialysis fluid is leaking when the plurality of dialysis solution line connectors are connected to the plurality of disposable pumping cassette supply connections.

22. The dialysis method of claim 21, wherein the identifying of whether dialysis fluid is leaking includes capturing an image of leaking dialysis fluid and activating an alarm.