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US 4,107,039 AGranted
Dialysate preparation system
AssigneeExtracorporeal Medical Systems, Inc.
InventorsEdward R. Lindsay, Jr., Stephen Mason Meginniss, III
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AssigneeExtracorporeal Medical Systems, Inc.
InventorsEdward R. Lindsay, Jr., Stephen Mason Meginniss, III
Estimating the term…
A system continuously prepares dialysate by mixing water under pressure with concentrate to form dialysate under pressure. This dialysate is supplied on demand to a single patient station or to a plurality of patient stations. The pressure at which this dialysate is supplied to multiple patient stations is controlled so changes in the flow to one station will not change the pressure at which dialysate is supplied to other stations. A pressure regulator senses the pressure of the dialysate supplied to the patient stations and controls a regulator valve connected between the source of water under pressure and a proportioning pump which mixes this water with concentrate. The regulator includes a constant force spring assembly which provides a constant bias against the pressure in a sensing chamber over a range of linear movement of the pressure sensing element.
A central system for continuously preparing dialysate for a plurality of dialysis patient stations comprising:
A system for continuously preparing dialysate for a dialysis patient station comprising:
Dependencies are inferred from the claim text.