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4944884 Body fluid purification method using activated carbon fibers of novoloid resin origin  
A body fluid purification method which comprises passing the body fluid through an apparatus for purifying a body fluid by removing micro-aggregates, histamine, etc, from the body fluid. This...
4935002 Apparatus and method for the autotransfusion of blood  
Autotransfusion apparatus and methods are disclosed for collecting, processing and returning blood to a patient during or after surgery. The processing step of the autotransfusion system comprises...
4923598 Apparatus for the treatment of blood in particular for hemodialysis and hemofiltration  
The apparatus for hemodialysis and hemofiltration comprises an extracorporeal blood circuit comprising a dialyzer and/or filter arrangement. For determining the fluid withdrawal per unit time and...
4904237 Apparatus for the exchange of cerebrospinal fluid and a method of treating brain and spinal cord injuries  
Disclosed is an apparatus and method for exchanging cerebrospinal fluid. The apparatus withdraws cerebrospinal fluid from the lumbar subarachnoid space, filters, cools, pH adjusts and performs...
4898572 Autotransfuser  
An autotransfuser device for removing blood from a patient and returning the blood to the patient includes a collection bag suspended in an air jacket. A valve is provided in the device to...
4874359 Power infuser  
A modular, power augmented medical infusion apparatus to provide rapid transfusion of relatively large quantities of blood, blood components, colloid, and fluids to patients. All components of the...
4850964 Blood collection device  
Blood collection system using a container having an inlet tube inside it and having a filter material coupled to the tube inside the container to collect debris contained within blood being fed...
4846787 Apparatus for preventing back-flow of fluid in a blood filtering system  
A blood filtering system includes a check valve for preventing fluid back-flow, coupled between a peristaltic pump and a pressure equalizer, the valve including a tubular container having an inlet...
4844871 Method of determining the partial pressure of gases in blood and an apparatus for performing the method  
A method and an apparatus are described for determining the partial pressures of gases in blood, in which a membrane filter is used to separate plasma which passes to a blood gas analyzer.
4844810 Installation with multiple functions for replacement of the natural filtration of the blood  
An installation having interchangeable functions for the replacement of the natural filtration of the blood. The installation has a reservoir of a sterile physiological solution. A three-way valve...
4828543 Extracorporeal circulation apparatus  
A method and apparatus for extracorporeal circulation and treatment of blood. The apparatus comprises means for circulating and for treating blood, with a control system for controlling the...
4800016 Extracorporeal blood de-heparinization system  
Heparin in an extracorporeal blood flow circuit is removed from the blood flow with the use of a filter which contains immobilized protamine on a blood-compatible support. In medical procedures...
4798578 Autotransfusion device  
An autotransfusion device for use with a chest drainage unit is disclosed which includes a collapsible blood collection bag assembly having slotted stiffener members and a holder for holding the...
4775360 Autologus blood methods and apparatus  
The present invention is directed to improved methods and apparatus for the collection of blood, which are particularly useful for autotransfusion purposes. The apparatus includes a conventional...
4775482 Method for removing fat and for purifying and defoaming liquids  
A device and related method for use in defoaming and/or removing certain impurities from a fluid stream is disclosed. The device comprises a housing having an inlet and an outlet, and a filter...
4772256 Methods and apparatus for autotransfusion of blood  
The present invention is directed to improved methods and apparatus for the collection of blood, which are particularly useful for autotransfusion purposes. The apparatus includes an upper...
4769037 Artificial replacement kidney implant and method of dialyzing blood  
An artifical replacement kidney implant for dializing blood within a human body comprising at least one blood panel having an inlet for coupling to the artery of a body and an outlet for coupling...
4767399 Volumetric fluid withdrawal system  
A system for withdrawing a predetermined volume of fluid from a patient comprises a filter assembly which is connected in line for fluid communication between an artery and a vein of the patient....
4744785 Autotransfusion system  
An autotransfusion system for collecting and salvaging blood from a patient's body cavity and for returning it to the patient includes a collection bottle which is detachably connected by an...
4737139 Unitary venous return reservoir with cardiotomy filter  
A unitary device for the treatment and collection of blood from two different sources during a surgical procedure comprises a hollow housing made of a rigid, preferably transparent, material,...
4732675 Density gradient filtration media  
A filtration unit comprising a filtration media subunit secured in an outer frame. The subunit comprises a fibrous filtration media enclosed in an inner frame having an upstream frame element and...
4705497 Blood reservoir  
A blood reservoir, commonly used in a blood circuit with an artificial lung, includes a blood extraction line chamber provided inside a housing and having a blood extraction line connection port,...
4702829 Hemodiafiltration apparatus  
Hemodiafiltration apparatus (10) comprising a closed dialysis solution cycle which has a balancing system (28), wherein into the closed cycle a first sterile filter (44) is connected from which a...
4701267 Method for removing leukocytes  
A filter unit for removing leukocytes from a leukocyte-containing suspension, comprising a container provided with at least one inlet conduit means and at least one outlet conduit means, the...
4692411 Separation of specific biological cells by a biochemical filter  
Apparatus and methods for selective removal of specific biological cells or specific antigens or antibodies, from fluid containing their mixture with other biological cells and particulates are...
4687580 Membrane apparatus/process adapted for plasmapheresis  
Apparatus/process for the withdrawal and return of liquid materials from a donor source, comprising means for withdrawing whole blood from a mammalian donor; a membranous blood filtration cell...
4685900 Therapeutic device  
A therapeutic device for removing pathological effectors brom body fluids of a patient is disclosed. Said device includes a chamber for receiving the body fluids and positioned within the chamber...
4676771 Arterial blood filter  
An arterial blood filter assembly (10) for removing undissolved gases and foreign bodies, particles, clots, etc., from blood flowing through the assembly (10) includes a housing (34) having an...
4668394 Filtration media and supporting frame  
A filtration unit comprising a filtration media sub-unit secured in an outer frame. The sub-unit comprises a fibrous filtration media enclosed in an inner frame having an upstream frame element...
4655740 Autotransfusion apparatus  
An apparatus for the autotransfusion of blood or similar body fluid. The apparatus includes a container which is an evacuable, vacuum-stable container having a bottom part and a cover part. The...
4648865 Device for in vivo purification of blood  
An especially designed double lumen catheter (10) for use in a device for in-vivo purification of blood, by means of which blood pumped out of a vein is subjected to intensive ultrafiltration and...
4631050 Autotransfusion system and method  
An autotransfusion system for salvaging, washing, and concentrating blood and returning the blood to a patient during surgery. The system comprises both a filtration unit and an ultrafiltration...
4619639 Method and apparatus for low pressure filtration of plasma from blood  
A method and apparatus for carrying out separation of plasma from whole blood, in which whole blood is passed through a filtration membrane means of a material suitable for separating plasma from...
4568330 Cardioplegia delivery system with improved bubble trap  
A cardioplegia system in which cardioplegia medication or a mixture of arterial blood and medication is delivered to the heart of a patient undergoing open heart surgery, which includes a bubble...
4559034 Line for use in body fluid treatment  
A method for treating blood uses a tubular body fluid passageway member at least part of which is made of a flexible material, an outer tubular member which is made of a nonflexible material and...
4529397 Cardioplegic controlling and regulating system  
A cardioplegic controlling and regulating device for the dosed perfusion of cardioplegic perfusion solution in open-heart surgery has a storage container for receiving the cardioplegic solution,...
4526569 Portable device for infusing insulin on the basis of glycemic measurements  
The invention relates to a device made by a concentric dual lumen catheter, a pump, a small hemofilter, a glucose sensor which, by means of a microinfusion pump with a stepping motor controlled by...
4517090 Low volume, large area filters for IV or blood filtration  
There is disclosed herein a flow-through medical filter element which includes surface or depth filter media and a frame-like structure for supporting and positioning the media. The frame-like...
4512763 Method and apparatus for selective removal of constituents of blood  
A method for removing a constituent such as immunoglobulins, lymphocytes, or immune complexes from a component of a patient's blood comprises the steps of: removing blood from the patient;...
4493693 Trans-membrane pressure monitoring system  
A monitoring system for monitoring trans-membrane pressure in plasmapheresis apparatus utilizing a microporous membrane type filter includes first and second pressure-to-frequency transducer...
4453927 Method and apparatus for microfiltration of blood  
A microfilter and method for infusion of blood and blood components into premature or neonatal infants designed to be utilized as an interruption filter between the syringe carrying the blood to...
4445884 Air purge unit for auto transfusion apparatus  
An air purge unit for an auto transfusion device is provided wherein a housing having a passageway therein is mounted on the top wall of a blood collection chamber. A filter having pore sizes...
4411792 Lymph filtration system  
A lymphapheresis or lymph filtration system is disclosed for removing lymph from a patient, separating the lymph into a liquid fraction and a cellular component fraction and returning the liquid...
4381775 Method for low pressure filtration of plasma from blood  
A method for carrying out separation of plasma from whole blood, in which whole blood is passed through a filtration membrane means of a material suitable for separating plasma from whole blood...
4350156 Method and apparatus for on-line filtration removal of macromolecules from a physiological fluid  
An on-line filtration system for the removal of macromolecules greater than 70,000 mol. wt. from a physiological solution, such as blood, in the therapeutic treatment of various disease states....
4303068 Method and apparatus for single pass hemodialysis with high flux membranes and controlled ultrafiltration  
Disclosed is a method of hemodialysis and a modification for existing hemodialyzers to facilitate use of the method. A highly porous membrane is utilized in a single pass hemodialysis system. The...
4300551 Method for treating schizophrenia  
A method for treating schizophrenia in human patients by hemoperfusion using hemoperfusion of the patient's blood through a charcoal cartridge in a manner for selective removal of molecules is...
4284502 Apparatus for treating uremic patients  
An apparatus for treating uremic patients by means of ultrafiltration, in which the withdrawn blood is separated by means of a hemofilter into plasma water and residual blood and the plasma water...
4241187 Method and apparatus for cell and tissue culture  
A method and apparatus for culturing biological cells and tissues in high density are disclosed, employing perfused blood as the nutrient source. The cells or tissues are separated from the...
4235231 Portable artificial kidney  
A portable artificial kidney designed for continuous use includes a catheter with filter properties. The body portion of the catheter has an infusion duct which opens into the surface of the...