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| Number | Title | Issue Date |
| 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 conducting the liquid into the casing, a filter disposed within ... | 05/14/1991 |
| 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 treated and the second compartment intended for circulating a p... | 04/02/1991 |
| 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 for receiving the collected blood and for venting the filt... | 03/19/1991 |
| 4968432 | 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 solution containing a first precipitation agent past a second... | 11/06/1990 |
| 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 normal body temperature but below the boiling point of the plasm... | 10/30/1990 |
| 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. Filter comprises a flexible housing having inlet and outlet port... | 09/04/1990 |
| 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 apparatus comprises a housing constituting a body fluid flow pa... | 07/31/1990 |
| 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 sequential rough filtering and filtering of the blood. Fil... | 06/19/1990 |
| 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 the total amount of fluid withdrawn flow sensors in conjunc... | 05/08/1990 |
| 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 diagnostic/monitoring functions on the fluid. It then returns ... | 02/27/1990 |
| 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 selectively apply a negative pressure to the air jacket and the in... | 02/06/1990 |
| 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 infuser that contact blood are sterlie, disposable, and ea... | 10/17/1989 |
| 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 into the container.... | 07/25/1989 |
| 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 and an outlet, two elongated plastic films in the containe... | 07/11/1989 |
| 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 is provided in communication with an outlet of the reservo... | 07/04/1989 |
| 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.... | 07/04/1989 |
| 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 circulating means. The circulating means includes tubing that dir... | 05/09/1989 |
| 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 where blood is processed in an extracorporeal device, such as... | 01/24/1989 |
| 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 stiffener members bowed outwardly and the bag expanded for c... | 01/17/1989 |
| 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 blood transfer bag which is in turn placed in fluid communic... | 10/04/1988 |
| 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 media disposed between the inlet and outlet comprising a fat-a... | 10/04/1988 |
| 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 reservoir wherein the collected blood enters the device. A lower c... | 09/20/1988 |
| 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 to the vein of a body to receive blood to be dialized and t... | 09/06/1988 |
| 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. A pump having a fluid chamber is connected in fluid communi... | 08/30/1988 |
| 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 arrangement of ports and an adapter to a source of suction as we... | 05/17/1988 |
| 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, first and second blood inlets in the housing, a first blood tre... | 04/12/1988 |
| 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 a downstream frame element. Each frame element has longitud... | 03/22/1988 |
| 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, the chamber temporarily accommodating blood from a vena cav... | 11/10/1987 |
| 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 connecting line (74, 90, 94) leads to the venous drip chamb... | 10/27/1987 |
| 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 container having a main filter packed therein in the form of a n... | 10/20/1987 |
| 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 described. Filtration by this biochemical filter system is ef... | 09/08/1987 |
| 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 which includes a membrane separator/filter, a compartment down... | 08/18/1987 |
| 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 is a biospecific polymer. Said biospecific polymer interact... | 08/11/1987 |
| 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 inlet (38) and outlet (44) and a vent (48) for venting undisso... | 06/30/1987 |
| 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 and a downstream frame element. Each frame element has longit... | 05/26/1987 |
| 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 container also includes an inlet opening for the body fluid a... | 04/07/1987 |
| 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 the retentate, together with a quantity of a substitute flu... | 03/10/1987 |
| 4642089 | 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, first and second blood inlets in the housing, a first blood tre... | 02/10/1987 |
| 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 unit. The ultrafiltration unit is configured so as to communi... | 12/23/1986 |
| 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 whole blood and having a pore size from 0.1 to 0.6 microns ... | 10/28/1986 |
