Continuous ambulatory peritoneal dialysis method

• US 5,037,385 A
• Filed: 10/23/1989
• Issued: 08/06/1991
• Est. Priority Date: 10/24/1988
• Status: Expired due to Fees

• Current Assignee: British Technology Group Ltd.
• Original Assignee: National Research Development Corporation
• Inventors: O'Byrne, Paul
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): MCDERMOTT, CORRINE MARIE
• Application Number:
  US07/424,165
• Time in Patent Office: 652 Days
• Field of Search: 604/4, 604/8, 604/9, 604/27-31, 604/43
• US Class Current: 604/28
• CPC Class Codes: A61M 1/1678 intracorporal peritoneal dialysis A61M1/28
• CPC Class Codes: A61M 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 2205/04 implanted
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202
• 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 wholly implantable continuous ambulatory peritoneal dialysis system comprises a first part (20) including tubing (21) for location as an access catheter affording a flowpath for dialysing solution from a subcutaneous portal, accessible by percutaneous needle, to the peritoneal cavity (11), and a second part (30) including a pump (33) and a further tubing (31, 32) serially interconnectable for location as a shunt affording a flowpath for the solution, following dialysis, from the cavity to the bladder (12), the pump being operable under control by the patient (10) to effect the shunt flow.

Claims

1. The method of surgically applying an apparatus as a continuous ambulatory peritoneal dialysis system in a patient, which apparatus comprises:

a first part including a length of tubing; and

a second part including a pump operable under the control of the patient, and a further length of tubing; and

which method comprises;

wholly implanting the first part tubing with one end located at a subcutaneous site accessible by percutaneous needle and the other end in the peritoneal cavity to serve as an access catheter affording a flow path for dialysing solution administered by way of said needle; and

wholly implanting said second part pump and further tubing in serial interconnection with one end located in said cavity and the other end located in the bladder to serve as a shunt affording a flow path for said solution, following dialysis, from the cavity to the bladder.

2. A method according to claim 1, wherein said pump is resiliently deformable, and said pump is implanted at a site to allow subsequent pump operation by manual action effected transcutaneously.

3. A method according to claim 2, wherein said site is the suprapubic space.

4. A method according to claim 1, wherein said pump is of a collapsible/expansible form, and said pump is implanted at a site between adjacent muscles to allow subsequent pump operation by contraction and relaxation of said muscles.

5. A method according to claim 4, wherein said site is the recti muscles.