Dialysis system having dual patient line connection and prime

• US 8,764,702 B2
• Filed: 07/05/2007
• Issued: 07/01/2014
• Est. Priority Date: 07/05/2007
• Status: Active Grant

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Inventors: Childers, Robert W., Hopping, Peter A.
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): LANDRY II, GERALD ERNEST
• Application Number:
  US11/773,795
• Publication Number:
  US 20090012458A1
• Time in Patent Office: 2,553 Days
• Field of Search: 604/29, 604/122, 604/131, 604/533, 604/534, 604/535, 604/538
• US Class Current: 604/29
• CPC Class Codes: A61M 1/152 Details related to the interface between cassette and machine
• CPC Class Codes: A61M 1/1522 the interface being evacuated interfaces to enhance contact
• CPC Class Codes: A61M 1/154 with sensing means or components thereof
• 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 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 1/284 Continuous flow peritoneal dialysis [CFPD]
• CPC Class Codes: A61M 1/288 Priming priming in extracorporeal blood circuits A61M1/3643
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• CPC Class Codes: A61M 2039/167 with energizing means, e.g. light, vibration, electricity
• CPC Class Codes: A61M 2205/122 using evacuated interfaces to enhance contact
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 2209/084 Supporting bases, stands for equipment
• CPC Class Codes: A61M 5/44 having means for cooling or heating the devices or media

Abstract

A dialysis system includes a dialysis instrument; a disposable cassette operable with the dialysis instrument; a dual lumen patient line including dual lumens, the dual lumen patient line connected to the disposable cassette; and a priming sequence in which ends of the dual lumens are connected together, a first pump chamber of the disposable cassette pumps fluid through the dual lumens until fluid reaches a second pump chamber of the disposable cassette.

Claims

1. A dialysis system comprising:

a dialysis instrument;

a disposable cassette operable with the dialysis instrument; and

a dual lumen patient line including dual lumens, the dual lumen patient line connected to the disposable cassette, each of the dual lumens including an end connector secured to an end of the dual lumen, the end connectors configured to be connected to each other forming a closed patient line loop,

wherein the dialysis instrument is configured to prime the dual lumen patient line when the end connectors of the dual lumens are connected together forming the closed patient line loop by causing a first pump chamber of the disposable cassette to pump fluid through the dual lumens until fluid reaches a second pump chamber of the disposable cassette.

2. The dialysis system of claim 1, wherein the cassette is configured to allow the second pump chamber to vent air to atmosphere.

3. The dialysis system of claim 1, wherein the end connectors are configured to also connect to a patient transfer set.

4. The dialysis system of claim 3, wherein the end connectors are connectable to mating connectors of a patient transfer set.

5. The dialysis system of claim 1, which includes a sensor operable with the disposable cassette to sense when fluid has reached the second pump chamber.

6. The dialysis system of claim 1, wherein the dialysis instrument is further configured to prime the dual lumen patient line by causing the first pump chamber to pump fluid through the dual lumen patient line until the second pump chamber is at least substantially full of fluid.

7. The dialysis system of claim 1, wherein the end connectors are configured such that one of the end connectors is configured to spike the other of the end connectors.

8. A dialysis system comprising:

a dialysis instrument;

a disposable cassette operable with the dialysis instrument; and

a dual lumen patient line including dual lumens, the dual lumen patient line connected to the disposable cassette, each of the dual lumens including an end connector secured to an end of the dual lumen, the end connectors configured to be connected to each other forming a closed patient line loop.

9. The dialysis system of claim 8, wherein the end connectors are further configured to spike and be spiked, respectively, by end connectors of a patient transfer set.

10. The dialysis system of claim 8, wherein the end connectors are further configured to be grasped and manipulated by an autoconnection device for connecting the end connectors to mating connectors of a patient transfer set.

11. The dialysis system of claim 8, wherein one of the end connectors includes a spike and the other end connector is configured to be spiked by the spike to form the closed patient loop.