Dialysis systems, components, and methods

• US 10,080,831 B2
• Filed: 02/05/2018
• Issued: 09/25/2018
• Est. Priority Date: 08/04/2009
• Status: Active Grant

• Current Assignee: Fresenius Medical Care Holdings Incorporated (Fresenius Medical Care AG)
• Original Assignee: Fresenius Medical Care Holdings Incorporated (Fresenius Medical Care AG)
• Inventors: Beiriger, Michael James, Parks, Robert Dale, Kaintz, Ryan Christopher
• Primary Examiner(s): Bass, Dirk R
• Application Number:
  US15/888,417
• Publication Number:
  US 20180154060A1
• Time in Patent Office: 232 Days
• Field of Search: 210143, 210175, 210232, 2103216, 2102571, 210646, 604 28, 604 29
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1605 Physical characteristics of the dialysate fluid
• CPC Class Codes: A61M 1/1629 with integral heat exchanger
• CPC Class Codes: A61M 1/1694 with recirculating dialysing liquid
• CPC Class Codes: A61M 1/1696 with dialysate regeneration
• CPC Class Codes: A61M 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/3317 Electromagnetic, inductive or dielectric measuring means
• CPC Class Codes: A61M 2205/3324 PH measuring means
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3334 Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/3365 Rotational speed
• CPC Class Codes: A61M 2205/3375 Acoustical, e.g. ultrasonic, measuring means
• CPC Class Codes: A61M 2205/3379 Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: A61M 2205/3393 by weighing the reservoir
• CPC Class Codes: A61M 2205/50 with microprocessors or computers

Abstract

A dialysis system including a housing, a dialysate pump disposed in the housing, and a dialysate line configured to be operatively connected to the dialysate pump such that the dialysate pump can pump dialysate through the dialysate line when the dialysate line is in fluid communication with a dialysate source.

Claims

1. A dialysis system, comprising:

a housing;

a dialysate pump disposed above a cavity of the housing;

a slidable drawer defining a recess configured to receive the dialysate pump, the slidable drawer being at least partially disposed within the cavity in a manner such that when the slidable drawer is moved to a closed position within the cavity, a member of the slidable drawer is moved towards the dialysate pump positioned above the cavity;

a dialysate component carrier configured to be disposed adjacent the member of the slidable drawer; and

a dialysate line secured to the dialysate component carrier and extending across an aperture that is defined by the dialysate component carrier and that is configured to receive the dialysate pump, such that when the slidable drawer is moved to the closed position and the member of the slidable drawer is moved towards the dialysate pump, the dialysate pump is received in the aperture and moves the dialysate line into the recess of the slidable drawer such that the dialysate pump can pump dialysate through the dialysate line.

2. The dialysis system of claim 1, wherein the member of the slidable drawer is configured to be lifted towards the dialysate pump positioned above the cavity.

3. The dialysis system of claim 1, wherein the dialysate component carrier snaps into the slidable drawer.

4. The dialysis system of claim 1, wherein the dialysate component carrier is configured to be supported by the member of the slidable drawer.

5. The dialysis system of claim 1, wherein the dialysate pump is configured to deflect the dialysate line into the recess of the slidable drawer.

6. The dialysis system of claim 1, further comprising a sorbent device positioned upstream of the dialysate pump.

7. The dialysis system of claim 1, further comprising a heater arranged to be aligned with the aperture such that heat emitted from the heater warms dialysate passing through the dialysate line.

8. The dialysis system of claim 1, wherein the slidable drawer comprises a mechanical lifting mechanism operatively secured to the member of the slidable drawer.

9. The dialysis system of claim 1, further comprising a blood line operatively connected to a blood pump such that the blood pump can pump blood through the blood line.

10. The dialysis system of claim 9, further comprising a dialyzer to which the dialysate line and the blood line are fluidly connected.

11. The dialysis system of claim 1, wherein the dialysis system is a hemodialysis system.

12. The dialysis system of claim 1, wherein the dialysate pump is a peristaltic pump.

13. The dialysis system of claim 1, further comprising a weight scale.

14. The dialysis system of claim 1, wherein the dialysate component carrier is configured to be positioned within the slidable drawer.

15. The dialysis system of claim 1, wherein, according to a position of the dialysate component carrier within the slidable drawer, any leak formed in components secured to the dialysate component carrier can be contained within the slidable drawer.