Manifolds for use in conducting dialysis

• US 8,105,487 B2
• Filed: 09/25/2008
• Issued: 01/31/2012
• Est. Priority Date: 09/25/2007
• Status: Expired due to Fees

• Current Assignee: Fresenius Medical Care Holdings Incorporated (Fresenius Medical Care AG)
• Original Assignee: Fresenius Medical Care Holdings Incorporated (Fresenius Medical Care AG)
• Inventors: Fulkerson, Barry N., Joseph, Russell T.
• Primary Examiner(s): Menon, Krishnan S
• Application Number:
  US12/237,914
• Publication Number:
  US 20090101552A1
• Time in Patent Office: 1,223 Days
• Field of Search: None
• US Class Current: 210/321.71
• CPC Class Codes: A61M 1/1692 Detection of blood traces in dialysate
• CPC Class Codes: A61M 1/1696 with dialysate regeneration
• CPC Class Codes: A61M 1/3413 Diafiltration
• CPC Class Codes: A61M 1/3639 Blood pressure control, pressure transducers specially adapted therefor
• CPC Class Codes: A61M 2205/126 with incorporated membrane filters
• CPC Class Codes: A61M 2205/3553 remote, e.g. between patient's home and doctor's office
• CPC Class Codes: A61M 2205/3584 using modem, internet or bluetooth
• CPC Class Codes: B01D 2313/10 Specific supply elements
• CPC Class Codes: B01D 2313/105 Supply manifolds
• CPC Class Codes: B01D 2313/12 Specific discharge elements
• CPC Class Codes: B01D 2313/125 Discharge manifolds
• CPC Class Codes: B01D 2313/243 Pumps
• CPC Class Codes: B01D 61/145 Ultrafiltration
• CPC Class Codes: B01D 61/18 Apparatus therefor
• CPC Class Codes: B01D 61/30 Accessories; Auxiliary operation
• CPC Class Codes: Y10T 137/8158 With indicator, register, recorder, alarm or inspection means
• CPC Class Codes: Y10T 137/87153 Plural noncommunicating flow paths
• CPC Class Codes: Y10T 137/87249 Multiple inlet with multiple outlet

Abstract

The present invention is directed to novel systems for conducting the filtration of blood using manifolds. The manifolds integrate various sensors and have fluid pathways formed therein to direct fluids from various sources through the requisite blood filtration or ultrafiltration system steps.

Claims

1. A system for conducting filtration of blood comprising

a molded, rigid plastic substrate, wherein said substrate has a first flow path formed therein, wherein said substrate has a second flow path formed therein, wherein at least one of said first or second flow path has a plurality of transducer diaphragms co-molded therein, wherein said first flow path and second flow path are fluidically isolated from each other, and wherein said substrate has a plurality of ports;

a waste reservoir for receiving waste, wherein said waste reservoir is in fluid communication with a port of said plurality of ports in the substrate;

a fluid reservoir for supplying fluid, wherein said fluid reservoir is in fluid communication with a port of said plurality of ports in the substrate;

a dialysate regeneration system, wherein said dialysate regeneration system is in fluid communication with a port of said plurality of ports in the substrate; and

a dialyzer, wherein said dialyzer is in fluid communication with two ports of said plurality of ports in the substrate.

2. The system of claim 1 wherein a pump is in fluid communication with said first flow path.

3. The system of claim 2 wherein the pump is peristaltic pump.

4. The system of claim 1 wherein the transducers are directly molded into the substrate and are made of synthetic rubber.

5. The system of claim 1 further comprising a flow meter integrated into the second flow path.

6. The system of claim 1 wherein at least two pumps are in fluid communication with said second flow path.

7. The system of claim 6 wherein at least one of said two pumps is a peristaltic pump.

8. The system of claim 1 further comprising a reader for detecting identification data embedded in said substrate.

9. The system of claim 1 wherein said dialysate regeneration system consists of at least one sorbent cartridge.