Artificial kidney
Abstract
Abstract AN EXTRA-CORPOREAL DEVICE EMPLOYING DIALYSIS AND FILTRATION MEANS PERFORMS THE FUNCTION OF A NATURAL KIDNEY. IN THE DEVICE, A BODILY FLUID SUCH AS PERITIONAL FLUID OR ARTERIAL BLOOD IS WITHDRAWN FROM THE BODY AND PASSED THROUGH A DIALIZER THAT CAUSES SELECTIVE DIFFUSION OF TOXIC, LOW MOLECULAR WEIGHT SOLUTES INTO A WATER-CONTAINING DIALYSATE, THE DIALYSATE AND SOLUTES ARE THEN PASSED THROUGH A FILTRATION MEANS OR COMBINATION OF FILTRATION AND ELECTRODIALZING MEANS THAT PERMIT ONLY THE PASSAGE OF PURE WATER OR PURE WATER DISSOLVED ELECTROLYTES WHILE RETAINING THE LOW MOLECULAR WEIGHT TOXIC SOLUTES. THE PURIFIED FILTRATE FROM THE FILTRATION MEANS IS RECYCLED AND COMBINED WITH A CONTROLLED AMOUNT OF MAKE-UP ELECTROLYTE SOLUTION AS THE DIALYSATE FOR THE DIALYZER AND THE UNFILTERED RESIDUE FROM THE FILTRATION MEANS IS DISCHARGE AS WASTE THE PERITONEAL FLUID OR BLOOD IN TRANSIT THROUGH THE DIALYZER IS THUS CLEANED OF TOXIC SUBSTANCES AND IS SUITABLE FOR RETURN.
Inventors
- 👤 C Brown
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
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