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5759396 Cardiotomy filter/defoamer structure with three-stage filter/defoamer  
A three-stage cardiotomy filter/defoamer dispenses with the conventional tricot sock covering by forming the secondary defoamer as a small-pore foam impregnated with a much heavier concentration...
5744047 Leucocyte depleting filter device and method of use  
Leucocyte depletion filter assemblies decrease the leucocyte content of a leucocyte-containing liquid at a flow rate of greater than about 25 milliliters per minute. These filter assemblies are...
5725776 Methods 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...
5722964 Filtered blood collection device  
A blood collection vessel includes a blood inlet, a pooling region in which blood from the inlet collects, and an outlet in the pooling region for reinfusion of the collected blood. A filter...
5683355 Cardiotomy reservoir with internal filter  
The present invention provides a cardiotomy reservoir for containing blood comprising a housing having a top portion, a bottom portion, and a continuous sidewall portion, the top portion and...
5679245 Retention device for extracorporeal treatment apparatus  
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...
5679260 Process for simultaneously removing tumour necrosis factor α and bacterial lipopolysaccharides from an aqueous liquid  
Disclosed is a process to remove tumour necrosis factor α (TNFα) or/and bacterial lipopolysaccharides (LPS) from an aqueous liquid, in particular blood, blood plasma or serum, in an extracorporeal...
5674452 Hollow fiber exchangers  
An exchanger includes an outer casing having an inlet port and an outlet port for a first fluid, and an inlet port and an outlet port for a second fluid, and a bundle of hollow fibers located...
5651765 Blood filter with concentric pleats and method of use  
An arterial line blood filter for use in extracorporeal blood circuits during heart bypass surgery. The blood filter includes a housing having a cap portion, a base portion and a generally...
5649903 Apparatus and methods for generating leukocyte free platelet concentrate  
Methods and devices for separating leukocytes from a leukocyte contaminated blood fraction by use of a rotating membrane filter apparatus. The invention includes methods/devices for preparing...
5630946 Method for processing a biological fluid including leukocyte removal in an extracorporeal circuit  
A method for removing undesirable material including leukocytes from a biological fluid in an extracorporeal circuit comprises passing a leukocyte containing biological fluid from a patient into a...
5595909 Filter device  
A filter device containing cell masses and single cells is described. The device contains porous hollow fibers and hepatocytes entrapped within a contracted gel matrix.
5545131 Artificial kidney  
An artificial kidney system comprises an artificial kidney forming container having an inlet blood port connectable with a patient's artery and an outlet blood port connectable with a patient's...
5543060 Method for processing blood for human transfusion  
A device for processing donated blood comprises a porous medium interposed between the collection bag and a satellite bag into which a component separated by centrifugation can be expressed, the...
5540841 Cardioplegia filter and method for processing cardioplegia fluid  
Methods, systems, and devices for processing a biological fluid including leukocytes during cardioplegia are disclosed. A method for processing a biological fluid including leukocytes comprises...
5536238 Systems and methods for simultaneously removing free and entrained contaminants in fluids like blood using photoactive therapy and cellular separation techniques  
Systems and methods remove a contaminant from a fluid like blood, regardless of whether the contaminant is carried free within the fluid or entrained within cellular matter carried within the...
5533964 Apparatus for removal of excess hydrogen ions from humans  
A compound or composition incorporating silver carbonate is disclosed for use in removing excess hydrogen ions in a patient. The silver carbonate reacts with chloride ions which naturally occur in...
5431811 Artificial kidney with device for filtering dialysis liquid  
A filtration device includes an ultrafilter having an inlet chamber, an outlet chamber, and an ultrafiltration membrane separating the inlet chamber from the outlet chamber. An inlet line flow...
5421813 Method for cleaning humor replacing circuit, joint for forming the circuit, and medical instrument container, for use in medical treatment  
This invention is directed to a method for cleaning a humor replacing circuit, in its entirety, by simply switching valves of joints connected to end portions of ducts which interconnect medical...
5411705 Combined cardiotomy and venous blood reservoir  
A reservoir for use in an extracorporeal blood circuit including a rigid shell forming an enclosed reservoir. A filter unit divides the reservoir into an inlet chamber and outlet chamber....
5372709 Fluid flow control apparatus  
A fluid control apparatus for use in separation and filtration having a removable sterilizable and disposable element which is engagable with a fixed element in the apparatus. When the two...
5370123 Blood clarification apparatus  
A blood clarification device wherein a means for measuring blood pressure comprises (a) a needle-detector which is much thinner than the puncture needle and capable of being smoothly inserted into...
5354262 Apparatus for removal of insoluble fat from blood of a patient  
An apparatus is disclosed for treating blood, by having the blood enter a container, in which essentially insoluble fats (or lipids) are discriminately withdrawn out of the blood as the blood...
5330420 Hemolysis detector  
An apparatus and method are disclosed for continuous, on-line monitoring of extracorporeal blood in a blood path. A shell has a blood inlet port, a blood outlet port and two compartments: a blood...
5314624 Process for filtering plasma and regenerating a secondary filter therefor  
In a process for filtering plasma by separating blood into blood cells and plasma by a primary filter and filtering the separated plasma by a secondary filter to remove macromolecules from the...
5279550 Orthopedic autotransfusion system  
The following disclosure comprises a medical autotransfusion and blood drainage reservoir for withdrawing blood from the site of an operation under vacuum. A walled reservoir is connected to the...
5263982 Hollow fiber membrane type artificial lung  
The hollow fiber membrane type ariticial lung has an inner cylinder, an outer cylinder, a hollow fiber bundle formed by collecting porous hollow fiber membrane and a supporting member for...
5242382 Apparatus and method for direct measurement of blood parameters  
Continuous or periodic measurement of blood gas parameters and blood pressure by separating plasma from blood and then using that plasma to measure the blood parameters. Plasma is separated from...
5234403 Blood collecting apparatus  
A blood collecting apparatus for collecting and reserving blood lost from the patient during or after operation, wherein thrombus contained in the collected blood is removed, and it is possible to...
5230341 Measuring the change of intravascular blood volume during blood filtration  
To determine in simple manner the change of the intravascular blood volume during filtration, in the extracorporeal blood circuit (2) of a blood purification apparatus at least one ultrasonic...
5215519 Autotransfusion membrane system with means for providing reverse filtration  
An apparatus for recycling autologous blood from a patient for reinfusion back to the patient comprising suction means, means for admixing aspirated blood with a washing fluid, filtering means for...
5192439 Blood collection reservoir and filter device  
A blood collection reservoir and filter device includes a generally cylindrical housing and an internal filter medium with the filter medium being retained in spaced relationship from the side...
5186431 Pressure sensitive valves for extracorporeal circuits  
The invention is a pressure sensitive valve that in different forms can be used to provide: an adjustable resistance to flow, adjustable positive or negative pressure relief, negative pressure...
5158533 Combined cardiotomy/venous/pleural drainage autotransfusion unit with filter and integral manometer and water seal  
A combined cardiotomy and venous reservoir with filtration for autotransfusion of cardiotomy blood and venous blood during surgery and for postoperative wound site pleural drainage of shed blood...
5152743 Apparatus and method for selective separation of blood cholesterol  
Selective separation of blood cholesterol by cascade filtration. An in vivo filter is implanted within a blood vessel to separate plasma from blood, and the separated plasma is removed to an...
5127900 Cardiotomy reservoir  
A cardiotomy reservoir which employs an inner wall structure which defines a central receiving chamber. The receiving chamber wall is tapered inwardly to provide a smooth blood flow along an...
5120302 Blood container for medical apparatus  
A blood container comprises a generally cylindrically shaped outer housing (11) having an upper portion, a lower portion and a bottom portion which declines downwardly to an outlet 3. A generally...
5098372 Methods and machine based on blood separation by filtration for plasma exchange treatment, plasma donation and cytapheresis such as platelet apheresis  
A machine for plasma exchange treatment, plasma donation, and cytapheresis such as platelet apheresis, having control means (24) for admixture of a liquid to flow of blood passing through a...
5080796 Thermofiltration of plasma  
A method for more selectively removing macromolecules from a plasma solution, whereby plasma containing the macromolecules to be removed is provided and heated to a temperature near or above...
5061236 Venous reservoir with improved inlet configuration and integral screen for bubble removal  
A blood reservoir device comprising a generally flexible blood collection chamber having an inlet portion and a main portion. The inlet portion is preferably sized and configured such that blood...
5057226 Treatment of liquid including blood components  
A method of removing a constituent of a biological fluid including a blood component, said method including flowing the biological fluid past one side of a first semipermeable membrane, flowing...
5055198 Autologous blood recovery membrane system and method  
An apparatus for recycling autologous blood from a patient for reinfusion back to the patient comprising suction means, admixing means for admixing aspirated blood with a washing fluid, filtering...
5049146 Blood/gas separator and flow system  
A blood reservoir is formed with a hard outer shell housing defining at least one blood compartment. A flexible bag is mounted in the outer shell and is connected to the reservoir inlet port to...
5043260 Perfusion device with hepatocytes  
A perfusion device to grow and maintain hepatocytes including a chamber having a perfusion inlet and a perfusion outlet, a semipermeable membrane in the chamber defining separate perfusion and...
5039430 Method and apparatus for combining cardiotomy and venous blood  
A combined cardiotomy and venous return reservoir which combines defoamed and filtered cardiotomy blood with venous blood in a common chamber and then passes the combined blood fractions through a...
5015388 Integrated device for the biospecific purification of a liquid containing cellular elements  
A device for biospecifically purifying a liquid having a first portion containing cellular elements and a second portion without cellular elements, the device comprising a casing, a duct for...
5004548 Method and apparatus for rinsing and priming an exchanger  
A method and apparatus for rinsing and priming an exchanger divided into first and second compartments by a semi-permeable membrane, the first compartment intended for circulating blood to be...
5000854 Protamine-based filter device for removal of heparin from blood samples  
An arrangement for collecting blood from a source of blood employs a filter chamber having a substantially predefined volume for accumulating the collected blood, and first and second access ports...
4966709 Thermofiltration of plasma  
A method for more selectively removing macromolecules from a plasma solution, whereby plasma containing the macromolecules to be removed is provided and heated to a temperature near or above...
4954251 Concentric microaggregate blood filter  
Microaggregate blood filter adapted to pre-filter aggregates larger than 150 microns without interfering with the on-going and continuous filtration of aggregates between 40 and 150 microns....