STEADY FLOW REGENERATIVE PERITONEAL DIALYSIS SYSTEM AND METHOD

• US 3,707,967 A
• Filed: 10/01/1970
• Issued: 01/02/1973
• Est. Priority Date: 10/01/1970
• Status: Expired due to Term

• Current Assignee: Sotiris Kitrilakis, Thomas Charles Robinson
• Original Assignee: Sotiris Kitrilakis, Thomas Charles Robinson
• Inventors: Kitrilakis, Sotiris, Robinson, Thomas Charles
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/077,240
• Time in Patent Office: 824 Days
• Field of Search: 128/213,214R,348,1R 210/321
• US Class Current: 604/29
• CPC Class Codes: A61M 1/1674 using UV radiation sources for sterilising the dialysate
• 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 1/281 Instillation other than by gravity
• CPC Class Codes: A61M 1/284 Continuous flow peritoneal dialysis [CFPD]
• CPC Class Codes: A61M 1/285 Catheters therefor

Abstract

A steady-flow regenerative peritoneal dialysis system and method making use of permanent percutaneous tubes extending into the abdominal cavity and means for circulating a dialysate through the abdominal cavity and reconstituting the dialysate.

Claims

1. A steady flow peritoneal dialysis system including in-flow and out-flow conduits adapted to extend through the abdominal wall into the abdominal cavity whereby dialysate fluid may be introduced into and removed from the cavity, each of said conduits including an external surface portion at the interface between the abdominal wall and the conduits which is compatible with the skin, subcutaneous tissue and other tissue, said surface including a plurality of adjacent substantially discrete pockets having openings which face in the direction of said skin and tissue, the walls of said pocket extending inwardly to a depth in the range of 0.002 to 0.020 inches and being of such shape and size as to provide means to accommodate a number of living cells sufficient to provide anchoring but not so large as to prevent essentially normal transfer of nutrients to the living cells in said pockets from adjacent skin and tissue, means for supplying the dialysate fluid to said in-flow conduit, means for causing the dialysate fluid to flow through the cavity, and means for removing the dialysate fluid from said out-flow conduit.

2. A system as in claim 1 in which said means for causing fluid to flow comprises a sealed pump.

3. A system as in claim 1 in which said supply and removal means includes a flow regulator.

4. A system as in claim 1 in which said supply means includes a dialysate fluid source and said removal means includes a sink.

5. A system as in claim 1 in which said supply and removal means includes means for reconstituting the dialysate fluid connected by fluid conduits to said inflow and out-flow conduits.

6. A system as in claim 5 in which said reconstitution means includes a column for the removal of uric acid and creatinine.

7. A system as in claim 5 including means for irradiating the circulatory fluid with ultra-violet radiation.

8. A system as in claim 7 in which said reconstitution means includes a filter adapted to receive the fluid flowing from the irradiation means.

9. A system as in claim 5 in which said system is a closed self-contained fluid system.