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| Number | Title | Issue Date |
| 7955503 | Pure water producing apparatus A pure water producing apparatus prevents fluctuations in the amount of produced pure water without requiring a heat exchanger. Raw water is filtered with an activated carbon filtration device, sent through a water supply pump to the reverse osmosis device, and demi... | 06/07/2011 |
| 7563370 | Semi-permeable membrane for use in osmosis and method and plant for providing elevated pressure by osmosis to create power The present invention concerns a semi-permeable membrane for use in osmosis consisting of one thin layer of a non-porous material (the diffusion skin), and one or more layers of a porous material (the porous layer), where the porous layer has a structure where poros... | 07/21/2009 |
| 7442294 | Blood dialyzer A hemodialysis apparatus that carries out hemodialysis treatment by measuring or calculating the blood volume or its volume change as a blood indication level, and by controlling dialysis conditions according to said target blood indication level, wherein the chrono... | 10/28/2008 |
| 7419587 | Water purification device A water purification device includes a fluid pump, a diaphragm unit having a diaphragm, which separates a primary side from a secondary side, and a consumer having a pressure requirement. The fluid pump is connected with the primary side and the consumer is connecte... | 09/02/2008 |
| 7410581 | Branched flow filtration and system A cross flow filtration apparatus for nanofiltration or reverse osmosis has pressure vessels with a plurality of filter cartridges in each vessel. A feed port is provided at an intermediate position on the side of the vessel, and two permeate flows or branches exit ... | 08/12/2008 |
| 7407585 | Water purification system and methods, and module for the system The invention relates to a method and a system for purifying water whereby: the water to be purified is pressurized (13); a pressurized flow of said water is directed onto at least one selective permeability... | 08/05/2008 |
| 7314554 | Extracorporeal blood treatment machine The invention relates to an extracorporeal blood treatment machine in which a blood circuit (3) is equipped with an inlet line leading to a filtration unit (2) and with an outlet line (3b) from the filtration unit; a fluid circuit compris... | 01/01/2008 |
| 7306735 | Process for the removal of contaminants from water The present invention provides a method of removing contaminants from water which includes the steps of first providing a water feed exposed to at least one hydrocarbon or chemical process. This water feed is set in-line with a reverse osmosis system which includes ... | 12/11/2007 |
| 7303667 | Blood dialysis apparatus having convenient controlling unit A hemodialysis apparatus that carries out hemodialysis treatment by controlling dialysis conditions, wherein the hemodialysis treatment is carried out under dialysis conditions determined by defining the course of said chronological target blood indication level as ... | 12/04/2007 |
| 7303680 | Method and apparatus for kidney dialysis A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include checking of dialysate bypass status using flow measurement; using a flow sensor to confirm the absence of ultrafiltration during bypass; automatic testing o... | 12/04/2007 |
| 7297268 | Dual head pump driven filtration system Improvements in product water throughput from a reverse osmosis (RO) membrane achieved by thinner feed spacers in the RO element (22), enhanced recovery (ratio of permeate to feed), pressure recovery of the retentate fluid pressure opposing the feed water pre... | 11/20/2007 |
| 7291269 | Apparatus and process for extracorporeal treatment of blood with selective extraction of solutes A device and method for an extracorporeal blood treatment is described. The device comprising at least one exchanger equipped with at least one first inlet for the blood to be treated, a first fluid outlet and a second fluid outlet, an input line for blood to be tre... | 11/06/2007 |
| 7264730 | Methods for kidney dialysis A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include methods such as supplying a dialysis machine including a touch screen interface to a machine user and supplying to the machine user accessory devices to be ... | 09/04/2007 |
| 7244357 | Pumps for filtration systems Improvements in product water throughput from a reverse osmosis (RO) membrane filter achieved by thinner feed spacers in the RO element, enhanced recovery (ratio of permeate to feed), pressure recovery of the retentate fluid pressure opposing the feed water pressure... | 07/17/2007 |
| 7241378 | Hemodialysis apparatus A hemodialysis apparatus includes means for measuring or calculating a blood volume or a blood volume change as a blood index level, a hemodialysis means, and a controlling means that controls hemodialysis conditions of the hemodialysis means according to the blood ... | 07/10/2007 |
| 7214315 | Pressure exchange apparatus with integral pump A pressure exchange device is provided that utilizes an integral high pressure boost pump that is in fluid communication with a pressure exchange unit. An optional low pressure boost pump unit may also be provided. The pressure exchange unit comprises a rotating rot... | 05/08/2007 |
| 7207781 | Pressure exchange apparatus with dynamic sealing mechanism A pressure exchange device is provided that utilizes a rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid. The housing may comprise a pressurized fluid contained therein to provide a sealing... | 04/24/2007 |
| 7186342 | Method for filling and washing a filter for a dialysis machine A dialysis machine is provided with a dialysate circuit, a blood circuit and a filter having a dialysate compartment connected to the dialysate circuit, a blood compartment connected to the blood circuit, and a semi-permeable membrane to separate the dialysate compa... | 03/06/2007 |
| 7097630 | Method and apparatus for determining hemodialysis parameters This invention provides a method and apparatus for calculating a hemodialysis parameter, especially blood access flow rate, using multiple dialysance values. The dialysance values may be calculated based upon either sodium or urea concentrations. One dialysance valu... | 08/29/2006 |
| 6977041 | Apparatus for manufacturing deionized water and using method thereof An apparatus and method for manufacturing deionized water is provided. Water is supplied to a first conduit. A plurality of reverse osmotic pressure vessels are connected to the first conduit. A filtering experimental vessel is connected to the first conduit, the fi... | 12/20/2005 |
| 6966979 | Device and method for controlling infusion of a liquid in an extracorporeal blood circuit An infusion control device controls infusion of a liquid in an extracorporeal blood circuit having an arterial pipe connected to an inlet of a blood compartment of a filter and a venous pipe connected to an outlet of the blood compartment. The arterial pipe is also ... | 11/22/2005 |
| 6908546 | Apparatus and method for producing purified water having microbiological purity A process is provided to produce water that will meet the specifications of the United States Pharmacopeia Inc. for Purified Water and Water for Injection, and water for dialysis as circumscribed by the American Association for Advancement of Medical Instrumentation... | 06/21/2005 |
| 6881344 | Method for setting up a dialysis treatment in a dialysis machine A method of setting up a dialysis treatment in a dialysis machine (1) provided with a device (6) for setting up the dialysis treatment, possessing a microprocessor (11), a data input (12, 13) and a screen (13), comprises the steps ... | 04/19/2005 |
| 6878273 | Dialyzing apparatus A dialyzing apparatus includes a dialyzer which removes water from blood of a patient at a pre-set water-remove rate, an autonomic-nerve-activity-related-information obtaining device which obtains autonomic-nerve-activity-related information that is related to an ac... | 04/12/2005 |
| 6878272 | Dialyzing apparatus A dialyzing apparatus includes a dialyzer which removes water from blood of a patient at a water-remove rate during a dialysis operation, a blood-pressure-change-related-information obtaining device which obtains a plurality of sorts of blood-pressure-change-related... | 04/12/2005 |
| 6872306 | Multifunctional pure water maker A multifunctional pure water maker includes a main body and a reverse osmosis module. The main body includes a base portion and a column extending from the base portion. A water container is removably placed on the base portion. A control cap is pivotally attached t... | 03/29/2005 |
| 6830693 | Method for setting up a dialysis treatment in a dialysis machine A method of setting up a dialysis treatment in a dialysis machine may include the steps of determining conditions of a dialysis treatment adapted to a specific patient, determining a first function (U(t)) of a first quantity (U) characterizing the dialysis treatment... | 12/14/2004 |
| 6821441 | Method for the purification of blood by means of hemodialysis and/or hemofiltration and apparatus for performing said method The present invention refers to a method for blood purification by means of hemodialysis and/or hemofiltration, wherein to the blood in the extra-corporeal circuit of the hemodialysis and/or hemofiltration device a substitution solution is added upstream as well as ... | 11/23/2004 |
| 6814864 | Extra-corporeal blood purification device An extra-corporeal blood purification device includes a blood filter, and elements for measuring at least one parameter affected by filter resistance to liquid flow, elements for determining at least a threshold value of the parameter, elements for comparing the par... | 11/09/2004 |
| 6808627 | Dialyzing apparatus A dialyzing apparatus including a dialyzer which removes water from blood of a patient at a water-remove rate, an arteriosclerosis-related-information obtaining device which obtains arteriosclerosis-related information that is related to a degree of arteriosclerosis... | 10/26/2004 |
| 6780322 | Hemofiltration system A multipurpose hemofiltration system (10) and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system (10) continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, th... | 08/24/2004 |
| 6752928 | Flow matching method and system using two transducers A property of unconnected first and second fluid flows is matched, such as, but not limited to, matching the flow rate of the replacement water stream with the waste water stream in kidney dialysis. The first and second flow paths are interconnected so substantially... | 06/22/2004 |
| 6746606 | Method and system for matching flow rate A flow rate of unconnected first and second fluid flows is matched, such as, but not limited to, matching the flow rate of the replacement water stream with the waste water stream in kidney dialysis. The first and second flow paths are interconnected so substantiall... | 06/08/2004 |
| 6733676 | Dialyzing system and method of operating the same A dialyzing system comprises a dialyzer 10 and an ultrafiltration-regulating unit 24 for regulating inflow and out flow of a dialysate to or from the dialyzer 10 to regulate ultrafiltration. The dialyzing system is adapted to determine a blood p... | 05/11/2004 |
| 6730233 | Device and method for controlling infusion of liquid in an extracorporeal blood circuit A dialysis machine includes an extracorporeal blood circuit having an arterial pipe and a venous pipe respectively connected to an inlet and an outlet of a blood compartment of a filter. The blood compartment and a dialysis liquid compartment of the filter are separ... | 05/04/2004 |
| 6709599 | Waste water treatment system with slip stream A method and apparatus for processing waste streams wherein a slipstream is formed on the upstream side of an ultrafiltration membrane (120) to carry collected and concentrated filter reject to a microfilter (170) via a slipstream through a conduit ( | 03/23/2004 |
| 6702774 | Method of measuring dialysis or clearance of hemodialysis systems A method for measurement of mass and energy transfer parameters (clearance and dialysance) in hemodialysis. A sensor is provided in the dialysate flow path downstream of the dialyzer and means are provided to add concentrate upstream of the dialyzer. A pr... | 03/09/2004 |
| 6607669 | Method and apparatus for enhancing filtration yields in tangential flow filtration A system is provided for proceeding with filtration of liquids in a manner having enhanced control characteristics. Yields are enhanced. The system and method can be used to maintain a substantially constant trans-membrane pressure. When desired, that con... | 08/19/2003 |
| 6602424 | Safety device for a blood treatment machine and a method of increasing the safety of a blood treatment machine To increase the safety of an extracorporeal blood treatment machine which has control of the ultrafiltration rate as a function of the blood volume of the patient, the ultrafiltration rate UFR(t) during the treatment is monitored in a safety device. The s... | 08/05/2003 |
| 6495046 | Filtration apparatus and methods The method relates to bringing about a mixed state of at least two fluids in a second part (34) of a line, which have flowed through a first part (32) of this line. This is attained in that a fractional flow of the fluids is withdrawn from the second part... | 12/17/2002 |
