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Class 210/929 - HEMOULTRAFILTRATE VOLUME MEASUREMENT OR CONTROL PROCESSES


Subclass of Class 210 - Liquid purification or separation
Definition: Collection of disclosures directed to the measurement or
No. of patents: 145
Last issue date: 12/04/2007


1        
NumberTitleIssue Date
7303680Method 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
7264730Methods 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
7147613Measurement of fluid pressure in a blood treatment device
A first flow path is defined within a first panel that forms a part of an extracorporeal fluid circuit. A second flow path is defined within a second panel that also forms a part of the extracorporeal fluid circuit. The first and second panels are oriented in a flui...
12/12/2006
7074332Multistage hemodiafiltration/hemofiltration method and apparatus
In a blood dialysis system including a source of substitution fluid (10) and a blood dialysis machine, a hemodiafiltration system having a first dialyzer (1) including a first blood compartment (4) having a first blood inlet which receives blood...
07/11/2006
7067061Method and a device for preparing a medical liquid
A method for preparing a medical liquid from a liquid, such as water, and two concentrated solutions comprises the following steps: circulating the liquid in a conduit (15), at a flowrate Q0; injecti...
06/27/2006
6916424Method and apparatus for a hemodiafiltration delivery module
This invention provides a method and apparatus for a hemodiafiltration delivery module that is used in conjunction with a UF controlled dialysis machine to enable hemodiafiltration therapy to be performed. The advantage is that one can fully utilize a current functi...
07/12/2005
6881344Method 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
6830693Method 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
6814864Extra-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
6752928Flow 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
6746606Method 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
6673314Interactive systems and methods for supporting hemofiltration therapies
A hemofiltration machine at a local treatment site is linked to a remote main data base server by a local transmitting/receiving device. The machine acts as a satellite of the main data base server. The machine performs specified therapy tasks while monit...
01/06/2004
6635026Haemofiltration machine for independently controlling the concentration of a least two ionic substances in a patient's internal medium
A haemofiltration machine designed to work with a haemofilter comprises two compartments separated by a semipermeable membrane, one compartment having an inlet connected to a withdrawing tube for taking blood from the patient and an outlet connected to a ...
10/21/2003
6607697Method and device for supplying ready-to-use dialysis fluid
A method of supplying ready-to-use dialysis fluid in a machine for extracorporeal blood treatment, is described, said machine having, in addition to a dialyzer, at least one sterile filter divided by a microbe-retaining membrane into a first and second ch...
08/19/2003
6602424Safety 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
6589482Extracorporeal circuits for performing hemofiltration employing pressure sensing without an air interface
An extracorporeal fluid circuit for performing hemofiltration defines within a flexible panel a flow channel that is free of an air interface. The flexible panel includes an in-line sensor region through which fluid pressure in the flow channel can be mea...
07/08/2003
6471872Hemofiltration system and method based on monitored patient parameters
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system and method are equally applicable to adult, pediatric and neonatal patients. In one embodiment, the system ...
10/29/2002
6423231Non-isosmotic diafiltration system
A method of hemodiafiltration including the steps of supplying a blood inflow, diafiltering the blood inflow using a first non-isosmotic dialysate fluid to provide a partially diafiltered blood outflow, mixing the partially diafiltered blood outflow with ...
07/23/2002
6406631Two stage diafiltration method and apparatus
In a blood dialysis system including a source of substitution fluid and a blood dialysis machine, a hemodiafiltration system comprises a first dialyzer including a first blood compartment having a first blood inlet which receives blood to be cleaned and a...
06/18/2002
6331252Methods for priming a blood compartment of a hemodialyzer
A method for priming a hemodialyzer is disclosed. Hemodialyzer comprises a dialysate compartment, a blood compartment, and a dialysis membrane separating the dialysate and blood compartments. The method comprises the steps of delivering a liquid to a dial...
12/18/2001
6303036Method and apparatus for efficient hemodiafiltration
An apparatus and method for hemodiafiltration are disclosed. The apparatus includes a first dialyzer cartridge containing a semi-permeable membrane that divides the dialyzer into a blood compartment and a dialysate compartment. Fluid discharged from the b...
10/16/2001
6200485Hemofiltration system and method
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system and method are equally applicable to adult, pediatric and neonatal patients. In one embodiment, the system ...
03/13/2001
6139748Method and device for monitoring an infusion pump
Methods and apparatus are disclosed for monitoring an infusion pump utilized in a dialysis machine for hemodiafiltration or hemofiltration. The apparatus includes a first flow circuit for a dialysis solution, including a flow meter, a second flow circuit ...
10/31/2000
6132616Method for flushing and filling of an extracorporeal blood circulation system of a dialysis machine
A method for flushing and filling of an extracorporeal blood circulation system of a dialysis machine is disclosed. The machine has a dialyzer, a separate dialysis liquid circuit flowing through a dialysate side of the dialyzer with the extracorporeal blo...
10/17/2000
6126831Method and device for determining hemodialysis parameters
A device and method are described to determine the concentration of a substance in blood flowing through a blood chamber of a dialyzer during extra corporeal blood treatment. The flow rate of dialysate flowing through the dialysate chamber of the dialyzer...
10/03/2000
5954951Device for collecting a sample of used dialysis fluid
A sampling system for a blood treatment circuit is disclosed, and is designed to collect a sample representative of all waste liquid discharged from a blood treatment apparatus during a treatment session. The circuit includes a feed line for supplying fre...
09/21/1999
5910252Technique for extracorporeal treatment of blood
Blood from a patient is treated extracorporeally by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary chamber of a filtration unit, past a semipermeable membrane ...
06/08/1999
5895571Separable hemodialysis system connected by a movable arm
A hemodialysis system includes the following: a dialysate handling unit for providing dialysate to the patient. This unit includes a hemodialysis solution pump and apparatus for monitoring hemodialysis solution safety such as a conductivity tester. Additi...
04/20/1999
5871694Device for providing a substituate
In a device for providing a substituate to a device for removing toxic substances from the blood which employs volumetric balancing of the fluid, an equalization chamber (11, 20) communicates with first and second inlet lines (9, 18) respectively, of a ba...
02/16/1999
5866015Method for determining hemodynamic parameters during an extracorporeal hemotherapy and related device
A method and a device for determining hemodynamic parameters during an extracorporeal hemotherapy, in which the blood arrives via the arterial branch (20) of the extracorporeal circuit (9) of the hemotherapeutic device (7), which is in fluid communication...
02/02/1999
5849179Automatic apparatus for obtaining equilibration samples of dialysate
An improved on-line, real time hemodialysis monitoring system for hemodialysis treatment, quantitates the rate and amount of a constituent, such as urea, removed during the hemodialysis treating by measuring the constituent concentrations as a function of...
12/15/1998
5830365Means for determining hemodynamic parameters during extracorporeal blood treatment
The invention relates to a means for determining hemodynamic parameters, such as cardiopulmonary recirculation, fistula flow and cardiac minute output during an extracorporeal blood treatment, in which blood is conducted to a dialyzer (3) by way of arteri...
11/03/1998
5824213Separable hemodialysis system
A hemodialysis system comprises the following: a dialysate handling unit for providing dialysate to the patient. This unit comprises a hemodialysis solution pump and apparatus for monitoring hemodialysis solution safety such as a conductivity tester. Addi...
10/20/1998
5792367System and method for monitoring a flow of dialysis fluid in a dialysis machine
Apparatus for monitoring flow of a dialysis fluid through a dialyzer is disclosed including a computer for calculating the flow rate of the dialysis fluid into and out of the dialyzer based on the formula P-PO =k*Qn in which P is the...
08/11/1998
5788846Method of measuring the effect of a dialysis treatment
Methods for measuring the effect of dialysis treatments are disclosed in which a fraction of the used dialysis fluid is extracted downstream of the dialyzer for analysis of at least one substance such as urea, and in which the fraction of dialysis fluid i...
08/04/1998
5776345Automatic priming technique
Blood from a patient is treated extracorporeally by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary chamber of a filtration unit, past a semipermeable membrane ...
07/07/1998
5762805Technique for extracorporeal treatment of blood
Blood from a patient is treated extracorporeally by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary chamber of a filtration unit, past a semipermeable membrane ...
06/09/1998
5744031Artificial kidney provided with means for determining characteristics of blood
An artificial kidney includes measurement structure for measuring at least one physical characteristic of a fresh dialysis liquid and of used liquid. The measurement structure are disposed in a line portion common to a branch circuit to the feeder line of...
04/28/1998
5725773Method and apparatus for determining the quantity of oremic toxins removed by a hemodialysis treatment
An apparatus and a method are provided for collecting samples of used dialysate during hemodialysis treatments. A fluid sample is branched off from the main flow of used dialysate into a sample receiving container. The branching off of the sample flow, i....
03/10/1998
5725776Methods for ultrafiltration control in hemodialysis
Methods and apparatus for increasing the accuracy of ultrafiltration in a dialysis machine and decreasing the time required for dialysis. The machine inclused a substantially non-compliant tank for mixing and storing a batch of dialsyate. In a preferred f...
03/10/1998
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