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31 results about "Plasma mhpg" patented technology

Methods of production and use of liquid formulations of plasma proteins

The present invention relates to the preparation and use of liquid formulations of plasma proteins, particularly blood coagulation factors. More specifically, the present invention relates to stable liquid formulations of Factor VIII and Factor IX that can be administered by injection or infusion to provide a constant level of the coagulation factor in the blood.
Owner:THE COALITION FOR HEMOPHILIA B +1

Apparatus of handling fluids

An apparatus and method for performing immunoturbidimetric measurements of plasma proteins on an apparatus used for measuring plasma and serum interferents are described. Immunoturbidometric measurements are made on a sample in a disposable dispensing tip which acts as cuvette and reaction chamber. These features allow tests which are not available on general chemistry analyzers, to become available, and at the same time the apparatus can provide a screening system for serum and plasma interferents.
Owner:SPECTROMEDICAL

Simple device for preparing plasma protein products through batch adsorption, and method thereof

The invention relates to the fields of the medical and biological technologies, and discloses a simple device for preparing plasma protein products through batch adsorption, and a method thereof. The device comprises an upper end sealing cover (1), a reaction bottle (2), a lower end sealing cover (3), a filter cloth sheet (4) and an openmouthed cover (5). The method is characterized in that two ends of the reaction bottle (2) are sealed through the upper end sealing cover (1), the filter cloth sheet (4) and the lower end sealing cover (3); the addition of a material in the reaction bottle (2) is realized through opening the lower end sealing cover (3); a liquid component in the reaction bottle (2) is filtered by the filter cloth sheet (4) through replacing the upper end sealing cover (5) by the openmouthed cover (5) and through pressurizing the middle part of the reaction bottle (2); and the whole batch adsorption preparation process comprising medium balancing, plasma protein adsorption, other protein washing and target plasma protein eluting is carried out in the reaction bottle (2). The device and the method simplify equipment and operations required by the preparation of the plasma proteins through the batch adsorption, and can simply realize the efficient separation of various plasma proteins. Same-batch experiments enable the screening of various conditions of the batch-adsorption preparation technology to be completed by utilizing a plurality of the devices.
Owner:BLOOD TRASFUSION INST CHINESE ACAD OF MEDICAL SCI

Suspended retransfusion set

InactiveCN104689403ANo assistance requiredBlood transfusion starts quicklyOther blood circulation devicesMedical devicesMedical equipmentBottle
The invention discloses a suspended retransfusion set, and belongs to the technical field of medical equipment and supplies. A clinical washing type autotransfusion technology has allogeneic transfusion shortcomings and plasma protein and coagulation factor loss; a simple method of manual filtering operation by multiple operators is frequently adopted for the conventional filtering type autotransfusion technology, and is exposed and high in pollution rate. The suspended retransfusion set consists of a negative-pressure suction pipeline, a blood recovery pipeline, a retransfusion pipeline and an automatic anticoagulant transfusion device, wherein the negative-pressure suction pipeline consists of a negative-pressure pipe, a negative-pressure conversion bottle, a negative-pressure indicator and a regulator, and is communicated with an upper filter screen gap through an internal opening of the negative-pressure pipe; the blood recovery pipeline comprises a suction head, a blood inlet pipe, a coarse filter screen, a fine filter screen, the upper filter screen gap, a blood storage tank, a blood storage tank air inlet pipe, a blood transfusion three-way valve and the like; the automatic anticoagulant transfusion device comprises a medicine storage tank, a medicine transfusion pipe, a medicine transfusion pipe grading valve, a blood inlet pipe-medicine transfusion pipe synchronization valve and the like. The suspended retransfusion set has the advantages of integrated design, automatic anticoagulant transfusion function, high recovered blood quality, high operability, high emergent treatment performance and the like.
Owner:杨海龙

Heart failure biomarker and application thereof

The invention discloses a heart failure biomarker and application thereof. The biomarker is IL-37, particularly IL-37a and IL-37b. The inventor finds that IL-37a and IL-37b are highly expressed in heart failure patients from plasma mRNA and plasma protein levels, and can distinguish heart failure patients and healthy people. For three types of heart failure: HFrEF, HFmrEF and HFpEF, research and comparison are carried out on IL-37a and IL-37b from the plasma mRNA and plasma protein levels, and it is found that the IL-37a / IL-37b ratio can be used as an early screening and early diagnosis markerfor identifying the HFpEF. Theoretical basis and guiding significance can be provided for early screening, early diagnosis and the like of heart failure (especially HFpEF), and the survival rate of patients can be increased.
Owner:承启医学(深圳)科技有限公司

A plasma protein isolate for treating Alzheimer's disease and its preparation method and application

The invention belongs to the field of molecular biology, and relates to a plasma protein isolate for treating Alzheimer's disease, a preparation method and application thereof. The plasma protein isolate includes: α, β globulin, ceruloplasmin, transferrin, haptoglobin and albumin; the preparation method of the plasma protein isolate comprises in turn: separating plasma from blood, and performing The cryoprecipitate is removed, and the supernatant obtained by the cryoprecipitate removal is subjected to four low-temperature ethanol precipitations, and the precipitate obtained after the fourth low-temperature ethanol precipitation is used as the plasma protein isolate. In the present invention, through a series of reasonable operation steps, reasonable reagents and parameters are selected in each step, and various factors cooperate with each other to improve the curative effect of the plasma protein isolate on Alzheimer's disease and enhance memory. The preparation method of the invention is simple, can be directly scaled up for industrialized production, and can be applied to the pharmaceutical industry on a large scale.
Owner:北京豪思生物科技股份有限公司

Sample pretreatment method for determining nanoscale cerium oxide in plasma or serum

The invention discloses a sample pre-treatment device for determining nano-grade cerium oxide in blood plasma or blood serum by adopting an inductively coupled plasma mass spectrometer. The sample pre-treatment device comprises the following steps: step 1, uniformly distributing nano-grade cerium oxide particles; step 2, adding a reduction agent into the nano-grade cerium oxide particles; step 3, digesting blood plasma protein or blood serum protein and carrying out reduction treatment on the cerium oxide particles; step 4, carrying out post-treatment. According to the sample pre-treatment device disclosed by the invention, a stock and working solution is prepared by adopting a mixed solution of nitric acid and Triton-X-100 and the nano-grade cerium oxide particles stably exist in the solution; a manner of digesting in a water bath at 80 DEG C for one night is adopted and the blood plasma protein or the blood serum protein is digested to reduce cerium oxide into trivalent cerium ions, so that accurate detection of an inductively coupled plasma mass spectrum can be carried out. According to the sample pre-treatment device disclosed by the invention, a nano-grade cerium oxide particle solution is stable and the protein is completely digested; a method is simple to operate and the testing cost is low; the determination of a large batch of blood plasma samples can be realized in one step.
Owner:上海药明康德新药开发有限公司

Device for detecting ultrafiltrate plasma protein of uremia patients after glomerular filtration

The invention provides a device for detecting ultrafiltrate plasma protein of uremia patients after glomerular filtration. The device comprises a body; the upper surface of the inner included angle ofthe side end of the body is fixedly connected to the top surface of a movable plate; clamping shafts are fixedly connected to the top end and the bottom end of the movable plate; the inner sides of the clamping shafts are movably connected to the right ends of movable rods; the inner sides of the movable rods are movably connected to the outer sides of movable shafts; suction stones penetrate through the movable shafts; the bottoms of the movable shafts are slidably connected to the top ends of shelves; and the outer sides of the shelves are fixedly connected to the inner sides of movable pieces. One part of a drying agent will be clamped on the inner side wall of a limiting pipe in an absorbing process, the drying agent which is not clamped can continuously fall to the limiting pipe at the bottom layer by layer to adsorb moisture, and the moisture in the sponge is gradually adsorbed by the drying agent, so that the interior of the machine can be kept dry, the condition of uneven drying area is avoided, inaccurate display is avoided, the reflecting mirror is prevented from becoming dirty, and the accuracy of the light ray rate is guaranteed.
Owner:陈晓艳

Fully automatic plasma processing equipment and processing method

The invention discloses a full-automatic plasma processing equipment and method. The equipment comprises a pH pump, an acetic acid pump, an ethanol pump, a plasma pump, a plasma precipitation reaction pool, a buffer solution circulating pump, a buffer solution trap, a buffer solution tank, a three-way valve and a feedback control system; the pH pump, the acetic acid pump and the ethanol pump are communicated with the buffer solution trap and the buffer solution tank respectively through a first mixer, the feedback control system is arranged between the buffer solution trap and the buffer solution tank, and the feedback control system is electrically connected with the pH pump, the acetic acid pump and the ethanol pump; the first port of the three-way valve is communicated with the buffer solution tank, the second port of the three-way valve is communicated with the plasma precipitation reaction pool, the third port of the three-way valve is communicated with the buffer solution circulating pump, and the buffer solution circulating pump and the plasma pump are communicated with the buffer solution tank through a second mixer. Accordingly, full automation can be achieved, the conductivity, ethanol concentration and acidity and alkalinity of a buffer solution are accurately controlled, protein in the plasma is precipitated through online verification, the recovery rate and yield of the plasma protein can be increased, and profit rate is increased.
Owner:CHANGSHU NANOMICRO BIOTECHNOLOGY CO LTD

Preparation process and device of low-ash pig plasma protein powder

The invention discloses a preparation process and device of low-ash pig plasma protein powder. The preparation process comprises the following steps of S01, carrying out centrifugal separation on pigblood by using a first-stage centrifugal machine; S02, carrying out plasma separation on the pig blood subjected to centrifugal separation by using a separator; S03, carrying out sufficient centrifugal separation on plasma by using a second-stage centrifugal machine; S04, carrying out low-temperature heating on the plasma subjected to sufficient centrifugal separation, and carrying out ultrafiltration concentration on the plasma subjected to low-temperature heating; S05, carrying out spray drying on the plasma subjected to ultrafiltration concentration; S06, keeping the plasma powder subjectedto spray drying dry; and S07, carrying out chromaticity vibration screening on the protein powder subjected to dry keeping, so that the chromaticity of the protein powder is kept on a standard line.According to the preparation process and device, the plasma protein can be fully separated from the blood through first-stage centrifugal separation, separation with the separator and second-stage centrifugal separation, the purity of the plasma protein can be fully improved through ultrafiltration concentration, the gray scale of the plasma protein powder is reduced, and the plasma protein powdercan be made to be in a uniform powder shape through spray drying.
Owner:江苏永盛生物科技有限公司

Processes for purifying proteins from plasma

The invention provides processes for producing preparations (e.g., plasma preparations or fibrinogen (Fg)-depleted preparations) containing one or more proteins (e.g., plasma proteins). Processes of the invention can be used to obtain enriched preparations of one or more proteins (e.g., Fg, immunoglobulin (Ig; e.g., IgG), alpha-1 proteinase inhibitor (A1 PI), albumin, plasminogen, prothrombin complex, and / or other plasma proteins). Multiple enriched preparations can be obtained from a single sample (e.g., a whole blood or plasma sample) using the processes of the invention.
Owner:CAMBRYN BIOLOGICS LLC
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