Method and apparatus for continuous peritoneal cascade dialysis and hemofiltration (CPCD/H)
First Claim
1. A method for carrying out continuous peritoneal dialysis comprising:
- providing a dialyzer element comprising a filter membrane for being exposed to fluid within said peritoneal cavity, said membrane having an interior dialysate passageway, and pores sufficient to allow diffusion of blood and plasma toxins therethrough,implanting said dialyzer element in the peritoneal cavity of a patient whereby the exterior surface of said filter membrane is exposed to peritoneal cavity fluid,infusing a transfer fluid into the patient'"'"'s peritoneal cavity and allowing said transfer fluid to dwell in said peritoneal cavity for a period of time whereby blood and plasma toxins from peritoneal vasculative are diffused through the peritoneal membrane into said transfer fluid and exposing the transfer fluid to the exterior of the filter membrane,continuously supplying substantially fresh dialysate fluid into said interior dialysate passageway of said dialyzer element and directing said dialysate fluid along said dialysate passageway, diffusing blood and plasma toxins in said transfer fluid through said membrane into said dialysate fluid in said interior dialyzer passageway to form toxic dialysate fluid therein, and continuously removing said toxic dialysate fluid from said dialyzer element.
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Accused Products
Abstract
A continuous peritoneal dialysis is carried out by providing a dialyzer element having a filter membrane for being exposed within the peritoneal cavity and an interior dialysate passageway, the membrane having pores sufficient to allow diffusion of blood toxins, implanting the dialyzer element in the peritoneal cavity of a patient, infusing a transfer fluid into the patient'"'"'s peritoneal cavity and continuously supplying substantially fresh dialysate fluid into interior dialysate passageway of the dialyzer element, directing the fluid along the passageway whereby it is exposed to the transfer fluid by diffusion through the membrane and whereby toxins from said transfer fluid are diffused into the dialysate in the dialyzer element to form toxic dialysate fluid, and continuously removing the toxic dialysate from said dialyzer element.
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Citations
15 Claims
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1. A method for carrying out continuous peritoneal dialysis comprising:
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providing a dialyzer element comprising a filter membrane for being exposed to fluid within said peritoneal cavity, said membrane having an interior dialysate passageway, and pores sufficient to allow diffusion of blood and plasma toxins therethrough, implanting said dialyzer element in the peritoneal cavity of a patient whereby the exterior surface of said filter membrane is exposed to peritoneal cavity fluid, infusing a transfer fluid into the patient'"'"'s peritoneal cavity and allowing said transfer fluid to dwell in said peritoneal cavity for a period of time whereby blood and plasma toxins from peritoneal vasculative are diffused through the peritoneal membrane into said transfer fluid and exposing the transfer fluid to the exterior of the filter membrane, continuously supplying substantially fresh dialysate fluid into said interior dialysate passageway of said dialyzer element and directing said dialysate fluid along said dialysate passageway, diffusing blood and plasma toxins in said transfer fluid through said membrane into said dialysate fluid in said interior dialyzer passageway to form toxic dialysate fluid therein, and continuously removing said toxic dialysate fluid from said dialyzer element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of carrying out continuous intraperitoneal dialysis comprising:
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implanting a dialyzer element comprising a filter membrane having an exterior surface for being exposed to fluid within said peritoneal cavity, said membrane having an interior dialysate passageway and pores sufficient to allow diffusion of blood toxins therethrough, an inlet for directing dialysate fluid into said dialyzer element and an outlet for directing dialysate fluid from said dialyzer element, a tube having a first conduit connected to said inlet and a second conduit connected to said outlet and one or more pumps cooperating with said tube for pumping dialysate fluid in and/or out of said dialyzer element into the peritoneal cavity of a patient whereby the exterior surface of said filter membrane is exposed to peritoneal cavity fluid, continuously supplying fresh dialysate fluid through the dialysate passageway whereby it is exposed to the interior filter membrane surface, diffusing toxins from the peritoneal cavity fluid through said filter membrane into said dialysate fluid, and continuously removing the toxic dialysate fluid from said dialyzer element. - View Dependent Claims (14, 15)
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Specification