Apparatus for removing water from blood
Patent 4713171 Issued on December 15, 1987. Estimated Expiration Date: 
December 15, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 15, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3007416 3218979 3459176 3727612 3791767 3811800 3902490 Atraumatic fluid handling method and apparatus Blood flow monitoring and control apparatus Artificial kidney and method for making same InventorApplicationNo. 06/574492 filed on 01/27/1984US Classes:210/110, With separator inlet control210/321.8, All cylindrical membranes are parallel210/929, HEMOULTRAFILTRATE VOLUME MEASUREMENT OR CONTROL PROCESSES422/44BLOOD TREATING DEVICE FOR TRANSFUSIBLE BLOODExaminersPrimary: Richman, Barry S.Assistant: Delahunty, C. M. Attorney, Agent or FirmInternational ClassesA61M 1/30 (20060101)A61M 1/10 (20060101) A61M 1/36 (20060101) A61M 1/34 (20060101) Foreign Application Priority Data1983-01-28 DEAbstractApparatus for removing water from blood, advantageously by the single-needle method, in which by means of an air-operated bellows pump blood is sucked into an expandable pump chamber and thereafter water is forced into a hemofilter and collected in an ultrafiltrate measuring chamber to which a collecting bag is connected. The inlet and the outlet of the ultrafiltrate measuring chamber to which a collecting bag is connected. The inlet and the outlet of the ultrafiltrate measuring chamber can be opened and closed by clamps controlled in opposite phase and the amount of ultrafiltrate collected in the ultrafiltrate measuring chamber can be controlled and determined. The ultrafiltrate measuring chamber is divided by a hose-like wall into two chamber portions, one chamber portion receiving filtrate and the other chamber portion being adapted in a preferred embodiment to receive infusion solution. Thus, the infusion solution can be proportioned and supplied to the patient in volume equivalent manner.Other References
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