Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Hollow or tubular part or organ
Reexamination Certificate
2006-08-01
2006-08-01
Stewart, Alvin J. (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Hollow or tubular part or organ
Reexamination Certificate
active
07083653
ABSTRACT:
An implantable human kidney replacement unit. Fully functional self contained, providing patients with end stage renal disease the freedom of traveling and moving about normally. Replacing donor kidneys. Implanted in the flank with at least one inlet and outlet tube each, sutured to the iliac artery and vain, at least one urine tube to the ureter. The housing constructed of anti-coagulant bacteriostatic materials has a plurality of reverse-osmosis process chambers with semipemeable membranes through the unit, followed by osmosis-diffusion chambers and membranes. Blood from the artery enters the first of the chambers. Small molecules such as water, magnesium, sodium, potassium, calcium, urea etc. are extracted from the blood according to their weight in atomic mass units as blood wipes past the self-cleaning membrane cartridges in the chambers. Molecules are further separated and urea sent to the bladder with excess water and electrolytes. The remainder is channeled to at least one diffusion chamber and reabsorbed into the blood. The same process is repeated in the other chambers where selected larger molecules such as creatinine and phosphorus are excreted, and some diffused back into the blood.
REFERENCES:
patent: 4183811 (1980-01-01), Walch et al.
patent: 4222869 (1980-09-01), Kato
patent: 4354933 (1982-10-01), Lester
patent: 4634447 (1987-01-01), Isono et al.
patent: 4648865 (1987-03-01), Aigner
patent: 4769037 (1988-09-01), Midcalf
patent: 5092886 (1992-03-01), Dobos-Hardy
patent: 5284470 (1994-02-01), Beltz
patent: 5397354 (1995-03-01), Wilk et al.
patent: 5549674 (1996-08-01), Humes et al.
patent: 5813410 (1998-09-01), Levin
patent: 5944684 (1999-08-01), Roberts et al.
patent: 5980480 (1999-11-01), Rubenstein et al.
patent: 6168578 (2001-01-01), Diamond
patent: 6234991 (2001-05-01), Gorsuch
patent: 6613095 (2003-09-01), Levin
patent: 6623441 (2003-09-01), Kihara et al.
patent: 6960179 (2005-11-01), Gura
patent: 2005/0273031 (2005-12-01), Ueno et al.
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