Subcutaneous dialysis system

• US 4,256,102 A
• Filed: 05/14/1979
• Issued: 03/17/1981
• Est. Priority Date: 05/14/1979
• Status: Expired due to Term

• Current Assignee: Anthony P. Monaco
• Original Assignee: Anthony P. Monaco
• Inventors: Monaco, Anthony P.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US06/038,777
• Time in Patent Office: 673 Days
• Field of Search: 128/213 A, 128/214 R, 128/214.4, 128/215, 128/348-350
• US Class Current: 604/175
• CPC Class Codes: A61M 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

A means and method of peritoneal dialysis in which a dialyzing tube is permanently embedded in a patient'"'"'s body with a perforated end of the tube located within the peritoneal cavity and the other end secured subcutaneously at the fascia. Dialyzing is achieved by perforating the epidermis with a needle at the time of dialysis and thereafter introducing a dialyzing fluid through the needle, and if desired, through a catheter inserted through a needle into the tube in quantity and for a time period to permit dialyzing. The dialyzing fluid containing contaminants is then removed by siphon and/or gravity action through the needle. The sequence of introducing and removing fluid may be repeated and thereafter the needle withdrawn allowing the epidermis to heal and leaving no visible appearance of the dialyzing tube.

Claims

1. A means for peritoneal dialysis comprising an elongated tube having an opening at one end and perforations formed along a section thereof, means for securing said tube with said perforations within the peritoneal cavity and with said one end subcutaneous but external of said peritoneal cavity, and means forming a perforable diaphragm over said open end, comprising a solid wall member having a frustoconic shape with the smaller diameter end of said frustoconic shape connected to said one end and the larger diameter end of said frustoconic shape supporting a needle perforable diaphragm.

2. A means as set forth in claim 1 wherein said perforable diaphram is formed of a mesh.

3. A means as set forth in claim 2 wherein said means for securing comprises a cuff extending radially from said tube and adapted to be sutured to the peritoneum.

4. A means as set forth in claim 3 wherein said perforations are formed radially about the tube.

5. A means as set forth in claim 4 wherein the height of said frustoconic shape is between 10 and 20 millimeters.