OA20320A - Plasma detoxification methods and systems. - Google Patents

Plasma detoxification methods and systems. Download PDF

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Publication number
OA20320A
OA20320A OA1202100330 OA20320A OA 20320 A OA20320 A OA 20320A OA 1202100330 OA1202100330 OA 1202100330 OA 20320 A OA20320 A OA 20320A
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OAPI
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plasma
blood
subject
housing
adsorption chamber
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OA1202100330
Inventor
Randy Wenthold
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Marker Holdings Ag
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Publication of OA20320A publication Critical patent/OA20320A/en

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Abstract

Disclosed are methods, systems, and devices for removing cytokines and other substances from blood of a subject in a closed fluid circuit. The methods, systems, and devices involve: (i) passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma: (ii) passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, where materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, and where die materials include, by weight. 50-70% activated carbon and 30-50% non-ionic resin: (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid: and (iv) transfusing the processed blood from the circuit directly into the subject, where no fluid besides the subject's blood is added to the circuit before the transfusing of the processed blood into the subject is completed.

Description

PLASMA DETOXIFICATION METHODS AND SYSTEMS
CROSS-REFERENCE TO RELATED APPLICATIONS
This application daims priority benefit of U.S. Provisional Patent Application Serial No. 62/791,617, filed January 11, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety.
TECHNICAL FIELD
The présent disclosure provides, inter alia, methods, Systems, and devices for plasma détoxification using a closed fluid circuit.
BACKGROUND
Sepsis is the primary cause of death in the intensive care unit and more than 35% of patients are admitted with sepsis or develop it during their intensive care unit stay. Hospital mortality rates are 27%, reaching 54% in the case of septic shock. Extracorporeal blood purification thérapies hâve been proposed to improve outcomes for patients with sepsis. These thérapies are based on the principle that removal of inflammatory mediators or bacterial toxins (or both) from the blood will favorably modulate the host inflammatory response. Recently, significant technological progress has greatly broadened the spectrum of techniques available for blood purification. Promising results hâve been reported with high-volume hémofiltration (HVHF), cascade hémofiltration, hemoadsorption, plasmapheresis, coupled plasma filtration adsorption (CPFA), high-adsorption hémofiltration, and high-cutoff (HCO) hemodialysis/hemofiltration. However, these techniques hâve not entered into mainstream clinical practice around the world.
Many doctors view sepsis as a three-stage syndrome, starting with sepsis and progressing through severe sepsis to septic shock. The goal is to treat sepsis during its early stage, before it becomes more dangerous.
Plasma détoxification Systems with extracorporeal circuits having plasma filter devices incorporated therein are known in the art. See, e.g., U.S. Patent No. 8,038,638 (Hemolife Medical) (hereinafter “the ‘638 patent”) and European Patent No. EP 0787500 Al (Bellco) (hereinafter “the ‘500 patent”). These plasma détoxification Systems are described as effective to treat sepsis, rénal failure, and liver failure. There are several deficiencies with these Systems. For example, an acute rénal failure pump that must possess a plasma adsorption mode is required in combination with the
- 1 20320 plasma séparation filter device and the adsorptive toxin removal device. These Systems also require complex tubing connections to be effective. Furthermore, these Systems must be used with anticoagulation to function. Sodium heparin, which is the anticoagulant used in these Systems, is expensive and difficult to dose during the therapy, and can be an issue for patients subject to bleeding.
No one extracorporeal system known in the art has been successful in the market place due to the esoteric tubing requirements and sodium heparin anticoagulation requirements used to manage the treatment. Previous Systems also hâve made sepsis treatment more difficult to manage by attempting to combine fluid removal via a hemofilter device. Anticoagulation control of the patient’s blood without excess plasma fluid removal is itself difficult. Thus, adding excess plasma fluid removal while simultaneously controlling the patient’s blood clotting via sodium heparin anticoagulation is a difficult clinical practice and a reason why the current Systems known in the art hâve not been successful in the market. Intensive Care Unit (ICU) treatment associated with ail existing extracorporeal devices introduced for treatment is another reason why previous Systems hâve not been successful in the market. Therefore, there remains a need for a safe and effective extracorporeal system for plasma détoxification.
The présent invention is directed to overcoming these and other deficiencies in the art.
SUMMARY
The présent disclosure provides, inter alia, methods, Systems, and devices for plasma détoxification using a closed fluid circuit. As described herein, the methods, Systems, and devices of the présent disclosure provide an extracorporeal system that can be used to safely remove toxins from plasma in patients suffering from many forms of sepsis, liver failure, acute respiratory distress, viral infections, poisoning, inflammation, and many other diseases and conditions treatable by plasma détoxification. In accordance with the présent disclosure, the methods, Systems, and devices provided herein are improvements over the existing art because they can use standard venous blood access with a centrifugal apheresis pump or similar device, thereby enabling therapeutic treatments to be administered as an out-patient type service instead of being limited to an ICU treatment.
In one aspect, the présent disclosure provides a system for removing cytokines and other substances from blood of a subject in a closed fluid circuit. This system includes components effective to perform the foilowing method steps: (i) passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and
-2 20320 plasma; (ii) passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin; (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and (iv) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
In another aspect, the présent disclosure provides a system for use in the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment, wherein said system comprises a plasma separator, an adsorption chamber, and a combining chamber, and wherein said system is used for said therapeutic treatment of the disease or condition by removing cytokines and other substances from blood of a subject in a closed fluid circuit, said system being effective to perform the following method steps: (i) passing venous blood from the subject through the plasma separator, thereby separating the blood into blood cells and plasma; (ii) passing the plasma received from the plasma separator through the adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin; (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in the combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and (iv) transfùsing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfùsing of the processed blood into the subject is completed.
In another aspect, the présent disclosure provides for the use of an adsorption chamber for the manufacture of a system according to the présent disclosure for the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute
-320320 respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
in another aspect, the présent disclosure provides a method of removing cytokines and other substances from blood of a subject in a closed fluid circuit. This method involves the steps of: (i) passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma; (ii) passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin; (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and (iv) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
In another aspect, the présent disclosure provides a method for therapeutic treatment of a subject. This method involves performing the method of removing cytokines and other substances from blood of a subject in a closed fluid circuit as described herein, thereby providing therapeutic treatment to the subject.
In certain embodiments, the methods, Systems, and devices of the présent disclosure involves the use of an adsorptive toxin removal device with a centrifugal apheresis pump to effectively detoxify plasma from patients suffering from various diseases. As described in more detail herein, the methods, Systems, and devices of the présent disclosure are advantageous over the existing art in that they reduce the number and complexity of devices, tubing, and components required for treatment. Furthermore, the methods, Systems, and devices of the présent disclosure can use anticoagulant citrate dextrose solution ACD-A, rather than being limited to using sodium heparin for the anticoagulant. The methods, Systems, and devices of the présent disclosure are also advantageous in that they incorporate effective device design for easy manufacture, and enable an assembly method to manufacture small scale devices for valuable scale-up laboratory studies or for use with small to medium sized patient’s, including children.
-420320
Other objects, features and advantages of the présent invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and spécifie examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the scope and spirit of the invention will become apparent to one skilled in the art from this detailed description.
INCORPORATION BY REFERENCE
Ail publications, patents, and patent applications mentioned in this spécification are herein incorporated by reference to the same extent as if each individual publication, patent, or patent application was specifically and individually indicated to be incorporated by reference.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings illustrate a number of exemplary embodiments and are a part of the spécification. Together with the following description, these drawings demonstrate and explain various principles of the instant disclosure.
FIG. 1 is a schematic of an exemplary embodiment of a System for removing cytokines and other substances from blood of a subject in a closed fluid circuit, as provided in the présent disclosure.
FIG. 2 is a schematic of an exemplary embodiment of an adsorption chamber for use in the methods, Systems, and devices for removing cytokines and other substances from blood of a subject in a closed fluid circuit, as provided in the présent disclosure.
Throughout the drawings, identical reference characters and descriptions indicate similar, but not necessarily identical, éléments. While the exemplary embodiments described herein are susceptible to various modifications and alternative forms, spécifie embodiments hâve been shown by way of example in the drawings and will be described in detail herein. However, the exemplary embodiments described herein are not intended to be limited to the particular forms disclosed. Rather, the instant disclosure covers ail modifications, équivalents, and alternatives falling within the scope of the appended claims.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
The instant disclosure is directed to, inter alla, methods, Systems, and devices for plasma détoxification using a closed fluid circuit. As described herein, the methods, Systems, and devices
- 5 20320 of the présent disclosure provide an extracorporeal system that can be used to safely remove cytokines and other toxins and unwanted substances from the plasma of patients suffering from varions diseases and conditions including, as described in more detail herein.
As used herein, the term “cytokines” refers to a broad category of small proteins (-5-20 kDa) that are important in cell signaling. Cytokines may include, without limitation, chemokines, interferons, interleukins, lymphokines, and tumor necrosis factors. Cytokines can be produced by a broad range of cells, including, for example, immune cells like macrophages, B lymphocytes, T lymphocytes and mast cells, as well as endothélial cells, fibroblasts, and various stromal cells.
As used herein, the terms “toxins” and “substances” (also referred to as “unwanted substances”) refer to any organic or inorganic compound that, when présent in a subject’s blood above a tolerable threshold, causes an adverse effect on the subject. Représentative examples of toxins in accordance with the présent disclosure include, without limitation, cytokines including interleukins (including but not limited to, IL-3), interferons, tumor necrosis factors alpha or gamma, soluble proteins, bilirubin, créatinine, amino acids, nucleic acids, bacterial toxins including endotoxins, exotoxins, lipopolysacccharides, cellular enzymes, bacterial cell wall components and pharmaceuticals such as acetaminophen.
In accordance with the présent disclosure, the methods, Systems, and devices provided herein enable standard venous blood access with a centrifugal apheresis pump or similar device, thereby enabling therapeutic treatments to be administered in an out-patient type manner rather than such therapeutic treatments being limited to an ICU setting.
In one aspect, the présent disclosure is directed to a system for removing cytokines and other substances from blood of a subject in a closed fluid circuit. As described in more detail herein, the system is an extracorporeal plasma détoxification system that includes components and devices that are effective to carry out the methods of the présent disclosure. At a minimum the system of the présent disclosure includes the following components and/or devices: a plasma separator; an adsorption chamber; and a combining chamber, each of which is described in more detail herein. The system of the présent disclosure is effective to remove cytokines and other substances from the blood of a subject by assisting in carrying out the following method steps of the présent disclosure: (i) passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma; (ii) passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials
-620320 comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin; (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and (iv) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
In another aspect, the présent disclosure is directed to a System for use in the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment, wherein said System comprises a plasma separator, an adsorption chamber, and a combining chamber, and wherein said System is used for said therapeutic treatment of the disease or condition by removing cytokines and other substances from blood of a subject in a closed fluid circuit, said system being effective to perform the following method steps: (i) passing venous blood from the subject through the plasma separator, thereby separating the blood into blood cells and plasma; (ii) passing the plasma received from the plasma separator through the adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin; (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in the combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and (iv) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
In another aspect, the présent disclosure is directed to the use of an adsorption chamber for the manufacture of a system according to the présent disclosure for the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a
-7 20320 resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
In another aspect, the présent disclosure is directed to a method of removing cytokines and other substances from blood of a subject in a closed fluid circuit. This method involves passing venous blood from the subject through a plasma separator. This step results in separating the blood into blood cells and plasma. The plasma received from the plasma separator is passed through an absorption chamber located in the circuit to form processed plasma. The absorption chamber is configureb to inclube materials that absorb cytokines in the plasma to form the processeb plasma. More specifically, these absorption materials containeb in the absorption chamber inclube, by weight, 50-70% activateb carbon anb 30-50% non-ionic resin. After passing through the absorption chamber, the processeb plasma is receiveb birectly from the absorption chamber anb combineb with the subject’s bloob cells in a combining chamber to form processeb bloob. This is bone without exchanging any of the plasma for another fluib. The methob then involves transfusing the processeb bloob from the circuit birectly into the subject. During the transfusing step, no fluib besibes the subject’s bloob is abbeb to the circuit before the transfusing of the processeb bloob into the subject is completeb.
FIG. 1 illustrâtes an exemplary embobiment of a system for removing cytokines anb other substances from the bloob of a subject in a closeb fluib circuit, as provibeb in the présent bisclosure. As shown in FIG. 1, system 1 inclubes plasma separator 20, absorption chamber 30, anb combining chamber 40. During operation of system 1, venous bloob 12 is taken from subject 10 anb passeb through plasma separator 20, thereby separating venous bloob 12 into bloob cells 22 anb plasma 24. Plasma 24 is receiveb from plasma separator 20 anb passeb through absorption chamber 30 to form processeb plasma 32. Absorption chamber 30 inclubes materials that absorb cytokines anb optionally other substances in plasma 24 to form processeb plasma 32. As provibeb herein, the absorption materials inclube, by weight, 50-70% activateb carbon anb 30-50% non-ionic resin. Processeb plasma 32 is receiveb birectly from absorption chamber 30 anb combineb with bloob cells 22 in combining chamber 40 to form processeb bloob 50, without exchanging any of plasma 24 or processeb plasma 32 for another fluib. Processeb bloob 50 is then transfuseb from the closeb fluib circuit of system 1 birectly back into subject 10. No fluib besibes venous bloob 12 of subject 10 is abbeb to the closeb fluib circuit of system 1 before transfusing of processeb bloob 50 into subject 10 is completeb.
- 8 20320
As used herein, a “closed fluid circuit” refers to an extracorporeal plasma détoxification System that is configured as a closed loop to receive venons blood from a subject and retum the processed blood to the same subject, after processing the blood through a sériés of devices as described herein. These devices include a plasma separator, an adsorption chamber, and a combining chamber as described herein.
As used herein, a “plasma separator” refers to a device suitable for use in separating venons blood from a subject into blood cells and plasma. Suitable examples of plasma separators for use in the methods, Systems, and devices of the présent disclosure include, without limitation, the following: HAEMOSELECT® M 0.3 plasma filter (B. Braun Medical Inc.), HAEMOSELECT® L 0.5 plasma filter (B. Braun Medical Inc.), PLASMAFLUX® PI dry plasma filter (Fresenius Medical Care), PLASMAFLUX® P2 dry plasma filter (Fresenius Medical Care), PLASMART™ 50 plasma filter (MEDICA S.p.A.), PLASMART™ 100 plasma filter (MEDICA S.p.A.), PLASMART™ 200 plasma filter (MEDICA S.p.A.), PLASMART™ 400 plasma filter (MEDICA S.p.A.), PLASMART™ 600 plasma filter (MEDICA S.p.A.), PLASMART™ 700 plasma filter (MEDICA S.p.A.), PLASMART™ 1000 plasma filter (MEDICA S.p.A.), PLASMAFLO™ OP02W(L) hollow fiber plasma separator (Asahi Kasei Medical Co., Ltd.), PLASMAFLO™ OP05W(L) hollow fiber plasma separator (Asahi Kasei Medical Co., Ltd.), PLASMAFLO™ OP08W(L) hollow fiber plasma separator (Asahi Kasei Medical Co., Ltd.), PRISMAFLEX® TPE 1000 set plasma filter System (Baxter/Gambro), and PRISMAFLEX® TPE 2000 set plasma filter system (B axter/ Gambro).
As used herein, an “adsorption chamber” refers to a device suitable for use in removing cytokines and other substances from the blood of a subject. As described herein, the adsorption chamber of the présent disclosure contains adsorption materials that adsorb cytokines in the plasma to form the processed plasma. As described in more detail herein, the adsorption chamber can also be configured to remove toxins other than cytokines from the blood of a subject.
More specifically, the adsorption chamber of the présent disclosure contains adsorption materials that include, by weight, 50-70% activated carbon and 30-50% non-ionic resin, as described in more detail herein. Although the adsorption chamber must include the aforementioned activated carbon and non-ionic resin, it can also include other components, as long as they do not interfère with the functionality of the adsorption chamber as described herein.
As used herein, the term “adsorption materials” refers to the materials contained in the adsorption chamber that are effective to remove cytokines and other substances of interest from the
-920320 blood of a subject. In certain instances, the term “materials” may be used to dénoté “adsorption materials” of the présent disclosure. More specifically, the adsorption materials of the présent disclosure include activated carbon and non-ionic resins. When used in the adsorption chamber of the présent disclosure, the adsorption materials are présent in an amount, by weight, of 50-70% activated carbon and 30-50% non-ionic resin. In one embodiment, the activated carbon includes at least one activated carbon material selected from, for example, uncoated coconut shell granule charcoal, uncoated organic granule charcoal, uncoated synthetic carbon, and the like. Suitable nonionic resins can include, without limitation, at least one resin material selected from a non-ionic aliphatic ester resin, a non-ionic polystyrène divinyl benzene resin, an agarose media with hydrophobie interactive chromatography, and other non-biologie adsorptive resins. A suitable nonionic aliphatic ester resin can include, without limitation, AMBERLITE® XAD-7HP. A suitable non-ionic polystyrène divinyl benzene resin can include, without limitation, AMBERCHROM® GC300C.
The non-ionic resins suitable for use in the methods, Systems, and devices of the présent disclosure are further described below.
In certain embodiments of the methods, Systems, and devices of the présent disclosure, nonionic exchange resins are exclusively used in accordance with the teachings of the présent disclosure because they will not bind (and thus removed from the blood) essential cations and anions such as, but not limited to, calcium, magnésium, sodium, potassium, chloride, carbonates, and other ionic species. This is important when recirculating patient’s plasma through an adsorptive device since changes in electrolytes results in changes in osmolality of a patient’s blood chemistry which is not desired.
Spécifie non-limiting examples of non-ionic exchange resins suitable for use with the methods, Systems, and devices of the présent disclosure can include, without limitation, AMBERLITE™ XAD-7 HP, AMBERCHROM™ CG300-C, and hydrophobie interaction chromatography resins (Butyl-S Sepharose 6, Butyl Sepharose 4, Capto Pheno, Capto Butyl, Capto Octyl, Capto Phenyl ImRes, Capto Butyl ImpRes, Phenyl Sepharose High Performance, Butyl Sepharose High Performance, Phenyl Sepharose 6 FastFlow low-sub, Phenyl Sepharose 6 FastFlow high-sub).
AMBERLITE™ is a group of polymeric synthetic resins made by the Rohm and Haas Company having a North American headquarters at 100 Independence Mail West Philadelphia, PA 19106-2399. AMBERLITE™ resins are available worldwide through a distributor network know to - 1020320 those skilled in the art. In one spécifie embodiment, the présent disclosure involves the use of AMBERLITE™ XAD-7 HP, which is an aliphatic ester resin having an average surface area of approximately 500 m2/g and an average pore size of approximately 450 Angstroms and a mean diameter of approximately 560 microns.
AMBERCHROME™ CG300-G is a synthetic non-ionic exchange resin, also manufactured by Rohm and Haas, made from polystyrène divinyl benzene having an average surface area of approximately 700 m2/g with an average pore size of 300 Angstroms; mean particle diameter ranges from approximately 35 microns to approximately 120 microns.
As used herein, hydrophobie interaction chromatography resins hâve particle diameters between 30 and 200 microns and are media produced by GE Healthcare Bio Sciences AB, Bjorkgaten 30, 751 84 Uppsala Sweden.
In one embodiment, the adsorption chamber is constructed from a polymer including, without limitation, polycarbonate, polypropylene, a Lexan co-polymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
In another embodiment, the adsorption chamber and/or the materials contained in the adsorption chamber are coated with human sérum albumin and an anticoagulant added to physiological saline as a solution prior to clinical use.
Suitable anticoagulants for use in the methods, Systems, and devices of the présent disclosure include, without limitation, sodium heparin and citrate dextrose solution ACD-A.
FIG. 2 illustrâtes an exemplary embodiment of an adsorption chamber for use in the methods, Systems, and devices of the présent disclosure. As shown in FIG. 2, adsorption chamber 100 includes housing 200, porous membranes 300a, 300b, and endcaps 400a, 400b. Housing 200 includes hollow tube 210 with opposing open ends 220a, 220b. Housing 200 contains activated carbon 230 and one or more non-ionic resin 240. Porous membrane filters 300a, 300b covers each of ends 220a, 220b of housing 200, each porous membrane filter 300a, 300b creating a barrier for maintaining activated carbon 230 and non-ionic resins 240 within housing 200 while allowing for passage therethrough of plasma during performance of the method of the présent disclosure. Endcaps 400a, 400b fitted to each of ends 220a, 220b of housing 200, where each endcap 400a, 400b is configured to keep its corresponding porous membrane filter 300a, 300b in place and to maintain a seal between each endcap 400a, 400b and the corresponding end 220a, 220b of housing 200.
- 11 20320
In certain embodiments of the adsorption chamber of the présent disclosure, each endcap includes a groove molded into its entire inner circumference. As provided herein, the groove is configured to facilitate mating of each endcap with the corresponding end of the housing.
In certain embodiments, the groove is configured to receive a quantity of adhesive. As shown in the exemplary embodiment adsorption chamber 100 of FIG. 2, adhesive 500a, 500b is deposited in the groove so as to aid in adhering porous membrane filters 300a, 300b to endcap 400a, 400b. In certain embodiments, another quantity of adhesive 501a, 501b is deposited between each endcap 400a, 400b and its corresponding porous membrane filter 300a, 300b to provide further adhesion between endcap 400a, 400b and the corresponding end 220a, 220b of the housing 200.
In certain embodiments, the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
In certain embodiments, the housing is in the form of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
In another aspect, the présent disclosure is directed to a method for therapeutic treatment of a subject involving the use of the methods, Systems, and devices of the présent disclosure for removing cytokines and other substances from the blood of the subject, thereby providing therapeutic treatment to the subject. In one embodiment, the therapeutic treatment of the présent disclosure can be administered via use of a standard venous access in an outpatient treatment setting.
In accordance with the method for therapeutic treatment of the présent disclosure, the therapeutic treatment can be for a disease or condition that can include, without limitation, sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, hum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
As provided herein, the autoimmune disease can include, without limitation, inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, uveitis, and the like.
As provided herein, the inflammation can be treated, without limitation, using an âge defying anti-inflammation application such as cosmetic, pain, and discomfort applications.
- 1220320
In a spécifie embodiment, the présent disclosure provides an extracorporeal plasma détoxification system that can remove toxins associated with and resulting from sepsis, liver failure, rénal failure, acute respiratory distress, auto immune, viral, poison, tick, pancreatic cancer bilirubin management, post-surgery inflammation management and other inflammation disease from the plasma of patients in need of therapeutic treatment. One embodiment of a system of the présent disclosure can include, without limitation, an extracorporeal system that can generally be used to remove blood via a cathéter, AV fistula or graft from a patient in need of plasma détoxification. Blood is removed from a large vein of a patient via one lumen of a conventional dual lumen cathéter connected to a centrifugal apheresis pump where the blood cells are separated from the plasma fraction of the blood. The separated blood leaves the centrifugal apheresis pump and can continue in one of two pathways. Blood cells are retumed to the patient while the separated plasma enters and passes through the adsorption column which is the toxin removal device of the présent disclosure, which contains a mixture of adsorbent materials. The adsorptive toxin removal device removes both protein-bound and soluble toxins. After leaving the adsorbent column, the plasma flow is recombined with the patient’s blood cells.
EXEMPLARY EMBODIMENTS
The foilowing embodiments are exemplary and are not intended to limit the présent invention.
Embodiment 1. A system for removing cytokines and other substances from blood of a subject in a closed fluid circuit, said system comprising components effective to perform the foilowing method steps:
(a) passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma;
(b) passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin;
(c) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and
- 13 20320 (d) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
Embodiment 2. The system according to Embodiment 1, wherein the non-ionic resin comprises at least one resin material selected from the group consisting of a non-ionic aliphatic ester resin, a non-ionic polystyrène divinyl benzene resin, an agarose media with hydrophobie interactive chromatography, and other non-biologie adsorptive resins.
Embodiment 3. The system according to Embodiment 2, wherein the non-ionic aliphatic ester resin is AMBERLITE® XAD-7HP.
Embodiment 4. The system according to Embodiment 2, wherein the non-ionic polystyrène divinyl benzene resin is AMBERCHROM® GC300C.
Embodiment 5. The system according to Embodiment 2, wherein the activated carbon comprises at least one activated carbon material selected from the group consisting of uncoated coconut shell granule charcoal, uncoated organic granule charcoal, and uncoated synthetic carbon.
Embodiment 6. The system according to Embodiment 1, wherein the adsorption chamber is constructed from a polymer selected from the group consisting of polycarbonate, polypropylene, a Lexan co-polymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
Embodiment 7. The system according to Embodiment 1, wherein the adsorption chamber comprises:
(a) a housing comprising a hollow tube with opposing open ends, said housing containing the activated carbon and non-ionic resin;
(b) porous membrane filters covering each of the ends of the housing, each porous membrane filter creating a barrier for maintaining the activated carbon and non-ionic resin within the housing while allowing for passage therethrough of the plasma during performance of the method steps; and (c) endcaps fitted to each of the ends of the housing, wherein each endcap is configured to keep its corresponding porous membrane filter in place and to maintain a seal between the endcap and the corresponding end of the housing.
Embodiment 8. The system according to Embodiment 7, wherein each endcap includes a groove molded into its entire inner circumference, said groove being configured to facilitate mating of each endcap with the corresponding end of the housing.
- 1420320
Embodiment 9. The system according to Embodiment 8, wherein said groove is configured to receive a quantity of adhesive, and said adhesive being deposited in the groove so as to aid in adhering the porous membrane filter to the endcap.
Embodiment 10. The system according to Embodiment 9, wherein another quantity of adhesive is deposited between each endcap and its corresponding porous membrane filter to provide further adhesion between the endcap and the corresponding end of the housing.
Embodiment 11. The system according to Embodiment 7, wherein the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
Embodiment 12. The system according to Embodiment 7, wherein the housing is in the form of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
Embodiment 13. The system according to Embodiment 1, wherein the adsorption chamber and/or the materials in the adsorption chamber are coated with human sérum albumin and an anticoagulant added to physiological saline as a delivery solution prior to clinical use.
Embodiment 14. The system according to Embodiment 13, wherein the anticoagulant is selected from the group consisting of sodium heparin and citrate dextrose solution ACD-A.
Embodiment 15. The system according to Embodiment 1, wherein said adsorption chamber is effective to remove toxins other than cytokines from blood of the subject.
Embodiment 16. A system for use in the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment, wherein said system comprises a plasma separator, an adsorption chamber, and a combining chamber, and wherein said system is used for said therapeutic treatment of the disease or condition by removing cytokines and other substances from blood of a subject in a closed fluid circuit, said system being effective to perform the following method steps:
(i) passing venous blood from the subject through the plasma separator, thereby separating the blood into blood cells and plasma;
- 15 20320 (ii) passing the plasma received from the plasma separator through the adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin;
(iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in the combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and (iv) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
Embodiment 17. The System according to Embodiment 16, wherein said auto immune disease is selected from the group consisting of inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, and uveitis.
Embodiment 18. The System according to Embodiment 16, wherein the non-ionic resin comprises at least one resin material selected from the group consisting of a non-ionic aliphatic ester resin, a non-ionic polystyrène divinyl benzene resin, an agarose media with hydrophobie interactive chromatography, and other non-biologie adsorptive resins.
Embodiment 19. The System according to Embodiment 18, wherein the non-ionic aliphatic ester resin is AMBERLITE® XAD-7HP.
Embodiment 20. The System according to Embodiment 18, wherein the non-ionic polystyrène divinyl benzene resin is AMBERCE1ROM® GC300C.
Embodiment 21. The System according to Embodiment 18, wherein the activated carbon comprises at least one activated carbon material selected from the group consisting of uncoated coconut shell granule charcoal, uncoated organic granule charcoal, and uncoated synthetic carbon.
Embodiment 22. The System according to Embodiment 16, wherein the adsorption chamber is constructed from a polymer selected from the group consisting of polycarbonate, polypropylene, a Lexan co-polymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
Embodiment 23. The System according to Embodiment 16, wherein the adsorption chamber comprises:
(a) a housing comprising a hollow tube with opposing open ends, said housing containing the activated carbon and non-ionic resin;
- 1620320 (b) porous membrane filters covering each of the ends of the housing, each porous membrane filter creating a barrier for maintaining the activated carbon and non-ionic resin within the housing while allowing for passage therethrough of the plasma during performance of the method steps; and (c) endcaps fitted to each of the ends of the housing, wherein each endcap is configured to keep its corresponding porous membrane filter in place and to maintain a seal between the endcap and the corresponding end of the housing.
Embodiment 24. The system according to Embodiment 23, wherein each endcap includes a groove molded into its entire inner circumference, said groove being configured to facilitate mating of each endcap with the corresponding end of the housing.
Embodiment 25. The system according to Embodiment 24, wherein said groove is configured to receive a quantity of adhesive, and said adhesive being deposited in the groove so as to aid in adhering the porous membrane filter to the endcap.
Embodiment 26. The system according to Embodiment 25, wherein another quantity of adhesive is deposited between each endcap and its corresponding porous membrane filter to provide further adhesion between the endcap and the corresponding end of the housing.
Embodiment 27. The system according to Embodiment 23, wherein the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
Embodiment 28. The system according to Embodiment 23, wherein the housing is in the foim of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
Embodiment 29. The system according to Embodiment 16, wherein the adsorption chamber and/or the materials in the adsorption chamber are coated with human sérum albumin and an anticoagulant added to physiological saline as a delivery solution prior to clinical use.
Embodiment 30. The system according to Embodiment 29, wherein the anticoagulant is selected from the group consisting of sodium heparin and citrate dextrose solution ACD-A.
Embodiment 31. The system according to Embodiment 16, wherein said adsorption chamber is effective to remove toxins other than cytokines from blood of the subject.
Embodiment 32. Use of an adsorption chamber for the manufacture of a system according to any one of Embodiments 16-31 for the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve
- 1720320 agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
Embodiment 33. The use according to Embodiment 32, wherein said autoimmune disease is selected from the group consisting of inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, and uveitis.
Embodiment 34. A method of removing cytokines and other substances from blood of a subject in a closed fluid circuit, said method comprising:
(a) passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma;
(b) passing the plasma received from the plasma separator through an absorption chamber locateb in the circuit to form processeb plasma, wherein materials in the absorption chamber absorb cytokines in the plasma to form the processeb plasma, saib materials comprising, by weight, 50-70% activateb carbon anb 30-50% non-ionic resin;
(c) combining the processeb plasma, receiveb birectly from the absorption chamber, with the bloob cells in a combining chamber to form processeb bloob, without exchanging any of the plasma for another fluib; anb (b) transfusing the processeb bloob from the circuit birectly into the subject, wherein no fluib besibes the subject’s bloob is abbeb to the circuit before the transfusing of the processeb bloob into the subject is completeb.
Embobiment 35. The methob accorbing to Embobiment 34, wherein the non-ionic resin comprises at least one resin material selecteb from the group consisting of a non-ionic aliphatic ester resin, a non-ionic polystyrène bivinyl benzene resin, an agarose mebia with hybrophobic interactive chromatography, anb other non-biologie absorptive resins.
Embobiment 36. The methob accorbing to Embobiment 35, wherein the non-ionic aliphatic ester resin is AMBERL1TE® XAD-7EIP.
Embobiment 37. The methob accorbing to Embobiment 35, wherein the non-ionic polystyrène bivinyl benzene resin is AMBERCHROM® GC300C.
Embobiment 38. The methob accorbing to Embobiment 35, wherein the activateb carbon comprises at least one activateb carbon material selecteb from the group consisting of uncoateb coconut shell granule charcoal, uncoateb organic granule charcoal, anb uncoateb synthetic carbon.
- 18 20320
Embodiment 39. The method according to Embodiment 34, wherein the absorption chamber is constructed from a polymer selected from the group consisting of polycarbonate, polypropylene, a Lexan co-polymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
Embodiment 40. The method according to Embodiment 34, wherein the adsorption chamber comprises:
(a) a housing comprising a hollow tube with opposing open ends, said housing containing the activated carbon and non-ionic resin;
(b) porous membrane filters covering each of the ends of the housing, each porous membrane filter creating a barrier for maintaining the activated carbon and non-ionic resin within the housing while allowing for passage therethrough of the plasma during performance of the method; and (c) endcaps fitted to each of the ends of the housing, wherein each endcap is configured to keep its corresponding porous membrane filter in place and to maintain a seal between the endcap and the corresponding end of the housing.
Embodiment 41. The method according to Embodiment 40, wherein each endcap includes a groove molded into its entire inner circumference, said groove being configured to facilitate mating of each endcap with the corresponding end of the housing.
Embodiment 42. The method according to Embodiment 41, wherein said groove is configured to receive a quantity of adhesive, and said adhesive being deposited in the groove so as to aid in adhering the porous membrane filter to the endcap.
Embodiment 43. The method according to Embodiment 42, wherein another quantity of adhesive is deposited between each endcap and its corresponding porous membrane filter to provide further adhesion between the endcap and the corresponding end of the housing.
Embodiment 44. The method according to Embodiment 41, wherein the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
Embodiment 45. The method according to Embodiment 40, wherein the housing is in the form of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
Embodiment 46. The method according to Embodiment 34, wherein the adsorption chamber and/or the materials in the adsorption chamber are coated with human sérum albumin and an anticoagulant added to physiological saline as a solution prior to clinical use.
- 1920320
Embodiment 47. The method according to Embodiment 46, wherein the anticoagulant is selected from the group consisting of sodium heparin and citrate dextrose solution ACD-A.
Embodiment 48. The method according to Embodiment 34, wherein said adsorption chamber is effective to remove toxins other than cytokines from blood of the subject.
Embodiment 49. A method for therapeutic treatment of a subject, said method comprising: performing the method according to any one of Embodiments 34-47 to remove cytokines and other substances from the blood of the subject, thereby providing therapeutic treatment to the subject.
Embodiment 50. The method according to Embodiment 49, wherein the therapeutic treatment is for a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
Embodiment 51. The method according to Embodiment 50, wherein said autoimmune disease is selected from the group consisting of inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, and uveitis.
Embodiment 52. The method according to Embodiment 50, wherein said inflammation is treated using an âge defying anti-inflammation application selected from the group consisting of cosmetic, pain, and discomfort applications.
Embodiment 53. The method according to Embodiment 49, wherein said therapeutic treatment is administered via use of a standard venous access in an outpatient treatment setting.
Embodiment 54. The method according to Embodiment 49 further comprising introducing an anticoagulant into the circuit.
Embodiment 55. The method according to Embodiment 54, wherein the anticoagulant is a citrate dextrose solution ACD-D.
Embodiment 56. The method according to Embodiment 49 further comprising removing toxins from the blood of the subject with the adsorption chamber.
Numeric ranges are inclusive of the numbers defining the range. The term about is used herein to mean plus or minus up to ten percent (10%) of a value. For example, “about 100” refers to any number between 90 and 110.
-2020320
The headings provided herein are not limitations of the varions aspects or embodiments of the invention, which can be had by reference to the spécification as a whole. Accordingly, the terms defined immediately below are more fully defined by reference to the spécification as a whole.
The terms a and an and the and similar referents used in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the spécification as if it were individually recited herein. Ail methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and ail examples, or exemplary language (e.g. “such as”)'provided herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the spécification should be construed as indicating any non-claimed element essential to the practice of the invention.
Groupings of alternative éléments or embodiments of the methods, Systems, and devices disclosed herein are not to be construed as limitations. Each group member may be referred to and claimed individually or in any combination with other members of the group or other éléments found herein. It is anticipated that one or more members of a group may be included in, or deleted from, a group for reasons of convenience and/or patentability.
Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Of course, variations on those preferred embodiments will become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventer expects skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than specifically described herein. Accordingly, this invention includes ail modifications and équivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described éléments in ail possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.
In closing, it is to be understood that the embodiments of the invention disclosed herein are illustrative of the principles of the présent invention. Other modifications that may be employed are within the scope of the invention. Thus, by way of example, but not of limitation, alternative
- 21 20320 configurations of the présent invention may be utilized in accordance with the teachings herein. Accordingly, the présent invention is not limited to that precisely as shown and described.
Other advantages which are obvious and which are inhérent to the disclosure will be évident to one skilled in the art. It will be understood that certain features and sub-combinations are of utility and may be employed without reference to other features and sub-combinations. This is contemplated by and is within the scope of the claims. Since many possible embodiments may be made of the disclosure without departing from the scope thereof, it is to be understood that ail matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Claims (56)

  1. WHAT IS CLAIMED IS:
    1. A system for removing cytokines and other substances from blood of a subject in a closed fluid circuit, said system comprising components effective to perform the following method steps:
    passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma;
    passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin;
    combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
  2. 2. The system according to claim 1, wherein the non-ionic resin comprises at least one resin material selected from the group consisting of a non-ionic aliphatic ester resin, a non-ionic polystyrène divinyl benzene resin, an agarose media with hydrophobie interactive chromatography, and other non-biologie adsorptive resins.
  3. 3. The system according to claim 2, wherein the non-ionic aliphatic ester resin is AMBERLITE® XAD-7HP.
  4. 4. The system according to claim 2, wherein the non-ionic polystyrène divinyl benzene resin is AMBERCHROM® GC300C.
  5. 5. The system according to claim 2, wherein the activated carbon comprises at least one activated carbon material selected from the group consisting of uncoated coconut shell granule charcoal, uncoated organic granule charcoal, and uncoated synthetic carbon.
    - 23 20320
  6. 6. The system according to claim 1, wherein the adsorption chamber is constructed from a polymer selected from the group consisting of polycarbonate, polypropylene, a Lexan co-polymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
  7. 7. The system according to claim 1, wherein the adsorption chamber comprises:
    a housing comprising a hollow tube with opposing open ends, said housing containing the activated carbon and non-ionic resin;
    porous membrane fdters covering each of the ends of the housing, each porous membrane filter creating a barrier for maintaining the activated carbon and non-ionic resin within the housing while allowing for passage therethrough of the plasma during performance of the method steps; and endcaps fitted to each of the ends of the housing, wherein each endcap is configured to keep its corresponding porous membrane filter in place and to maintain a seal between the endcap and the corresponding end of the housing.
  8. 8. The system according to claim 7, wherein each endcap includes a groove molded into its entire inner circumference, said groove being configured to facilitate mating of each endcap with the corresponding end of the housing.
  9. 9. The system according to claim 8, wherein said groove is configured to receive a quantity of adhesive, and said adhesive being deposited in the groove so as to aid in adhering the porous membrane filter to the endcap.
  10. 10. The system according to claim 9, wherein another quantity of adhesive is deposited between each endcap and its corresponding porous membrane filter to provide further adhesion between the endcap and the corresponding end of the housing.
  11. 11. The system according to claim 7, wherein the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
  12. 12. The system according to claim 7, wherein the housing is in the form of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
    -2420320
  13. 13. The System according to claim 1, wherein the adsorption chamber and/or the materials in the adsorption chamber are coated with human sérum albumin and an anticoagulant added to physiological saline as a delivery solution prior to clinical use.
  14. 14. The System according to claim 13, wherein the anticoagulant is selected from the group consisting of sodium heparin and citrate dextrose solution ACD-A.
  15. 15. The System according to claim 1, wherein said adsorption chamber is effective to remove toxins other than cytokines from blood of the subject.
  16. 16. A system for use in the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment, wherein said system comprises a plasma separator, an adsorption chamber, and a combining chamber, and wherein said system is used for said therapeutic treatment of the disease or condition by removing cytokines and other substances from blood of a subject in a closed fluid circuit, said system being effective to perform the following method steps:
    (i) passing venous blood from the subject through the plasma separator, thereby separating the blood into blood cells and plasma;
    (ii) passing the plasma received from the plasma separator through the adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin;
    (iii) combining the processed plasma, received directly from the adsorption chamber, with the blood cells in the combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and
    -2520320 (iv) transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
  17. 17. The system according to claim 16, wherein said autoimmune disease is selected from the group consisting of inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, and uveitis.
  18. 18. The system according to claim 16, wherein the non-ionic resin comprises at least one resin material selected from the group consisting of a non-ionic aliphatic ester resin, a non-ionic polystyrène divinyl benzene resin, an agarose media with hydrophobie interactive chromatography, and other non-biologie adsorptive resins.
  19. 19. The system according to claim 18, wherein the non-ionic aliphatic ester resin is AMBERLITE® XAD-7HP.
  20. 20. The system according to claim 18, wherein the non-ionic polystyrène divinyl benzene resin is AMBERCHROM® GC300C.
  21. 21. The system according to claim 18, wherein the activated carbon comprises at least one activated carbon material selected from the group consisting of uncoated coconut shell granule charcoal, uncoated organic granule charcoal, and uncoated synthetic carbon.
  22. 22. The system according to claim 16, wherein the adsorption chamber is constructed from a polymer selected from the group consisting of polycarbonate, polypropylene, a Lexan copolymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
  23. 23. The system according to claim 16, wherein the adsorption chamber comprises:
    a housing comprising a hollow tube with opposing open ends, said housing containing the activated carbon and non-ionic resin;
    -2620320 porous membrane filters covering each of the ends of the housing, each porous membrane filter creating a barrier for maintaining the activated carbon and non-ionic resin within the housing while allowing for passage therethrough of the plasma during performance of the method steps; and endcaps fitted to each of the ends of the housing, wherein each endcap is configured to keep its corresponding porous membrane filter in place and to maintain a seal between the endcap and the corresponding end of the housing.
  24. 24. The System according to claim 23, wherein each endcap includes a groove molded into its entire inner circumference, said groove being configured to facilitate mating of each endcap with the corresponding end of the housing.
  25. 25. The system according to claim 24, wherein said groove is configured to receive a quantity of adhesive, and said adhesive being deposited in the groove so as to aid in adhering the porous membrane filter to the endcap.
  26. 26. The system according to claim 25, wherein another quantity of adhesive is deposited between each endcap and its corresponding porous membrane filter to provide further adhesion between the endcap and the corresponding end of the housing.
  27. 27. The system according to claim 23, wherein the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
  28. 28. The system according to claim 23, wherein the housing is in the form of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
  29. 29. The system according to claim 16, wherein the adsorption chamber and/or the materials in the adsorption chamber are coated with human sérum albumin and an anticoagulant added to physiological saline as a delivery solution prior to clinical use.
  30. 30. The system according to claim 29, wherein the anticoagulant is selected from the group consisting of sodium heparin and citrate dextrose solution ACD-A.
    -2720320
  31. 31. The system according to claim 16, wherein said adsorption chamber is effective to remove toxins other than cytokines from blood of the subject.
  32. 32. Use of an adsorption chamber for the manufacture of a system according to any one of claims 16-31 for the therapeutic treatment of a disease or condition selected from the group consisting of sepsis, liver failure, viral infection, acute respiratory distress, rénal failure, inflammation, poisoning, drug overdose, autoimmune disease, tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
  33. 33. The use according to claim 32, wherein said autoimmune disease is selected from the group consisting of inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, and uveitis.
  34. 34. A method of removing cytokines and other substances from blood of a subject in a closed fluid circuit, said method comprising:
    passing venous blood from the subject through a plasma separator, thereby separating the blood into blood cells and plasma;
    passing the plasma received from the plasma separator through an adsorption chamber located in the circuit to form processed plasma, wherein materials in the adsorption chamber adsorb cytokines in the plasma to form the processed plasma, said materials comprising, by weight, 50-70% activated carbon and 30-50% non-ionic resin;
    combining the processed plasma, received directly from the adsorption chamber, with the blood cells in a combining chamber to form processed blood, without exchanging any of the plasma for another fluid; and transfusing the processed blood from the circuit directly into the subject, wherein no fluid besides the subject’s blood is added to the circuit before the transfusing of the processed blood into the subject is completed.
  35. 35. The method according to claim 34, wherein the non-ionic resin comprises at least one resin material selected from the group consisting of a non-ionic aliphatic ester resin, a non-ionic
    -2820320 polystyrène divinyl benzene resin, an agarose media with hydrophobie interactive chromatography, and other non-biologie adsorptive resins.
  36. 36. The method according to claim 35, wherein the non-ionic aliphatic ester resin is AMBERLITE® XAD-7HP.
  37. 37. The method according to claim 35, wherein the non-ionic polystyrène divinyl benzene resin is AMBERCHROM® GC300C.
  38. 38. The method according to claim 35, wherein the activated carbon comprises at least one activated carbon material selected from the group consisting of uncoated coconut shell granule charcoal, uncoated organic granule charcoal, and uncoated synthetic carbon.
  39. 39. The method according to claim 34, wherein the adsorption chamber is constructed from a polymer selected from the group consisting of polycarbonate, polypropylene, a Lexan copolymer, polytetrafluoroethylene, and other medical grade polymers suitable for injection or blow molding.
  40. 40. The method according to claim 34, wherein the adsorption chamber comprises:
    a housing comprising a hollow tube with opposing open ends, said housing containing the activated carbon and non-ionic resin;
    porous membrane filters covering each of the ends of the housing, each porous membrane filter creating a barrier for maintaining the activated carbon and non-ionic resin within the housing while allowing for passage therethrough of the plasma during performance of the method; and endcaps fitted to each of the ends of the housing, wherein each endcap is configured to keep its corresponding porous membrane filter in place and to maintain a seal between the endcap and the corresponding end of the housing.
  41. 41. The method according to claim 40, wherein each endcap includes a groove molded into its entire inner circumference, said groove being configured to facilitate mating of each endcap with the corresponding end of the housing.
    -2920320
  42. 42. The method according to claim 41, wherein said groove is configured to receive a quantity of adhesive, and said adhesive being deposited in the groove so as to aid in adhering the porous membrane filter to the endcap.
  43. 43. The method according to claim 42, wherein another quantity of adhesive is deposited between each endcap and its corresponding porous membrane filter to provide further adhesion between the endcap and the corresponding end of the housing.
  44. 44. The method according to claim 41, wherein the ends of the housing are threaded and the corresponding endcaps are also threaded so as to mate with one another.
  45. 45. The method according to claim 40, wherein the housing is in the form of a tube comprising at least one of polypropylene, polytetrafluoroethylene, or other medical grade tubing materials.
  46. 46. The method according to claim 34, wherein the absorption chamber anb/or the materials in the absorption chamber are coateb with human sérum albumin anb an anticoagulant abbeb to physiological saline as a solution prior to clinical use.
  47. 47. The methob accorbing to claim 46, wherein the anticoagulant is selecteb from the group consisting of sobium heparin anb citrate bextrose solution ACD-A.
  48. 48. The methob accorbing to claim 34, wherein saib absorption chamber is effective to remove toxins other than cytokines from bloob of the subject.
  49. 49. A methob for therapeutic treatment of a subject, saib methob comprising:
    performing the methob accorbing to any one of daims 34-47 to remove cytokines anb other substances from the bloob of the subject, thereby provibing therapeutic treatment to the subject.
  50. 50. The methob accorbing to claim 49, wherein the therapeutic treatment is for a bisease or conbition selecteb from the group consisting of sepsis, liver failure, viral infection, acute respiratory bistress, rénal failure, inflammation, poisoning, brug overbose, autoimmune bisease,
    -3020320 tick-bome illness, Chemical or nerve agent exposure, bum biliary obstruction, post-surgery inflammation, bacterial infection, complications caused by smoke inhalation, complications as a resuit of any form of injury or trauma, and complications as a resuit of any form of cancer or cancer treatment.
  51. 51. The method according to claim 50, wherein said auto immune disease is selected from the group consisting of inflammatory arthritis, psoriasis, Crohn’s disease, ulcerative colitis, inflammatory bowel disease, and uveitis.
  52. 52. The method according to claim 50, wherein said inflammation is treated using an âge defying anti-inflammation application selected from the group consisting of cosmetic, pain, and discomfort applications.
  53. 53. The method according to claim 49, wherein said therapeutic treatment is administered via use of a standard venous access in an outpatient treatment setting.
  54. 54. The method according to claim 49 further comprising introducing an anticoagulant into the circuit.
  55. 55. The method according to claim 54, wherein the anticoagulant is a citrate dextrose solution ACD-D.
  56. 56. The method according to claim 49 further comprising removing toxins from the blood of the subject with the adsorption chamber.
OA1202100330 2019-01-11 2020-01-13 Plasma detoxification methods and systems. OA20320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62/791,617 2019-01-11

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Publication Number Publication Date
OA20320A true OA20320A (en) 2022-05-10

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