86 results about "Blood erythrocytes" patented technology

A plasma or serum separation membrane capable of omitting centrifugation, without hemolysis caused by red blood cell destruction, capable of conveniently and quickly separating plasma or serum from blood; and a filter comprising a plasma or serum separation membrane. In particular, a plasma or serum separation membrane is a membrane that separates plasma or serum from blood and has a void ratio of 30% or less; and a filter that includes a filter element capable of moving plasma faster than blood cells And the plasma or serum separation membrane sequentially connected with the rear side of the filter element.

The invention provides a method for measuring materials inside human single blood erythrocyte by mocro-fluidic chip chemiluminescence, which can analyze the contents of cysteine, glutathione and hemoglobin in a single blood erythrocyte. An electrophoresis chemiluminescence detection system of a mocro-fluidic chip is adopted; five power supply output ends of a high voltage power supply are respectively connected with a buffer solution pool B, a sample pool S, a waste liquie pool SW, a chemiluminescence reagent pool R and a buffer waste liquie pool BW of the mocro-fluidic chip; the mocro-fluidicchip is arranged on an objective lens of a chemiluminescence detector; the chemiluminescence detector is an inverted microscope combined with a photomultiplier; the photomultiplier is electrically connected with a data collector; and the data collector is electrically connected with a computer. The method can carry out early diagnosis on occurrence of lesions by measuring the increased degree ofthe concentration of the glutathione and the cysteine in the single blood erythrocyte, has high analysis speed, high sensitivity and high resolution, is suitable for early diagnosis to health examination and the lesions of a human body, and can be used as an effective means of preventive medicine.

The invention relates to a blood pump for assisting blood flow in the heart, in particular to an artificial heart blood pump with magnetic and fluid dynamic pressure hybrid suspension, which comprises a casing 7 sleeved on an inner shell 9; wherein the casing comprises a motor stator 8 and the inner shell 9 comprises a head support component 1, a rotor component and a rear support component 15. The blood bump is characterized in that the rotor component, the head support component 1 and the rear support component 15 are arranged in the cylindrical inner shell 9; the rotor component is arranged between the head support component 1 the rear support component 15; wherein a head blood dynamic pressure suspension cone bearing 2 is positioned at the central head support component 1; the rotor component comprises a head blood dynamic pressure suspension cone 3, an impeller 6, a rear permanent magnet bearing inner ring 10 and a rear blood dynamic pressure suspension cone 13 in series; a rear blood dynamic pressure suspension cone bearing 14 is arranged at the central rear support component 15 and a rear permanent magnet bearing external ring 12 is embedded on the outside of the bearing. The blood pump has the advantages of low shearing force of the blood, less damage to blood erythrocytes and decreased hemolysis.

The invention relates to a health product, in particular to a soft capsule and a method for producing the same. The soft capsule is characterized in that: the soft capsule contains water soluble pearl powder, selenium-enriched yeast, natural vitamin E, beeswax, glycerol monostearate, span-80 and corn oil. The soft capsule is a powerful antioxidant which can effectively improve the rancidity of fatty acid in food and the alimentary tract, and protect cells from being damaged by harmful matters generated by oxidation of unsaturated fatty acid; the soft capsule is an extremely good free radical scavenger which can protect biological membranes from being attacked by free radicals, effectively resist ageing nutrients, improve immunity of a human body, keep the integrity of red blood cells and promote the biological synthesis of the red blood cells; the soft capsule is an indispensible promoting factor for cellular respiration, which can protect the lung tissue from air pollution; moreover, the soft capsule also can prevent the over-aggregation of blood platelets, avoid the increase of lipid peroxidation in the blood, prevent cardiovascular diseases and supplementing calcium element in the human body.

A method and apparatus to estimate the concentration of a target substance (e.g. Cholesterol or CRP) in the plasma component of awhole blood sample without the need to separate the red blood cells from the plasma prior to testing,thereby simplifying the design and construction of the test device. The invention achieves this by measuring the analyte under investigation in a time dependent (bio-/immuno-) chemical reaction and measuring separately, a marker substance (e.g haemoglobin) for the estimation of red blood cell volume, using a non-time-dependent alteration in physical property of the reaction mixture (in this instance, transmission) attributed to inherent filter effects on sample addition. These non-time- dependent changes are not part of the reaction chemistry, and are resolved from the time dependent alteration in physical property caused by the assay chemistry by continuous measurement and mathematical modelling. Algorithms that combine these two parameters are used to estimate the target substance and compensate for variations in the percentage haematocrit of the sample. The method equalises the assay response for subtle variations in patient sample (e.g. haematocrit).

The invention discloses a reagent for quantitatively detecting serum amyloid proteins A in whole blood. The reagent comprises reagents R1 and reagents R2. The reagents R1 comprise disruption components, buffer solution, surfactants, electrolyte, preservatives, reaction promoters and stabilizers; the reagents R2 comprise latex particles, surfactants, electrolyte, preservatives, stabilizers and buffer solution; the disruption components are used for removing measurement interference red blood cells, blood cells are not separated by the disruption components, and the original whole blood can be used; anti-human SAA antibodies are coated by the latex particles, and the particle sizes of the latex particles are 50-300 nm. The reagent has the advantages that a detection sample can be the whole blood such as peripheral blood, requirements on high sensitivity and wide linear ranges can be simultaneously met, the reagent is excellent in anti-interference performance, accuracy and precision, and clinical examination requirements can be met. The invention further discloses a method for quantitatively detecting the serum amyloid proteins A in the whole blood.

The invention discloses a pulse and red blood cell concentration monitoring instrument which comprises a finger pinching device. An opening is formed in one end of the finger pinching device, a cavity is formed in the finger pinching device, and an infrared light source and a photoelectric detector are oppositely arranged on the upper surface and the lower surface of the cavity respectively. The finger pinching device is connected with a storage and operation device and a display device in sequence. The finger clamping device clamps the finger pad of a testee, after the infrared light source irradiates the finger, original light intensity signals are transmitted, the photoelectric detector receives the original light intensity signals and converts the original light intensity signals into electric signals to collect data within the pixel range, the electric signals are stored in the storage and operation device for storage and processing, and obtained pulse data and red blood cell concentration data are displayed through a display device. According to the pulse and red blood cell concentration monitoring instrument, the signals are collected through the photoelectric detector based on a CMOS camera, detection sensitivity and precision are high, the light intensity signals are processed based on a signal intensity frequency domain modulation method, dicrotic waves can be reduced and even eliminated, and therefore the measurement result is improved. The operation is simple, calculation complexity is greatly reduced, and storage space is saved.

The present invention discloses an experimental method for evaluating eye irritation by using miniature pig erythrocytes. The method mainly comprises: (1) preparing a suspension of miniature pig erythrocytes; (2) carrying out a miniature pig erythrocyte hemolysis test; (3) carrying out a protein denaturation experiment; (4) predicting a model; (5) carrying out classification and judgment. According to the present invention, the source of the erythrocytes is reliable and safe; the tested material is easy to obtain, and has good uniformity; the test system is simple and cheap, and no special equipment is required; the detection method is rapid, sensitive and universal; the method of the present invention can be directly applicable for safety evaluations of chemicals, cosmetics, pesticides, eye medicines and other substances possibly contacting the eyes, wherein the chemicals comprise surfactants, disinfection products, detergent and the like, the cosmetics comprise shampoo, bath foam, eye cream and the like; the method further can be applicable for rapidly screening, classifying and identifying the eye irritations of the raw materials, the formulas or the products.

The invention discloses an image acquiring method and system for detecting a single erythrocyte. The image acquiring method and system uses an automatic viewing and automatic focusing manner when acquiring the image of the single erythrocyte, performs automatic acquisition, automatic screening, and automatic identification on the image of the single erythrocyte, clearly displays the color, the size, the length of the single erythrocyte on a display, and overcomes a time-consuming and labor-consuming defect and person-dependent image acquisition effect of a manual adjusting method.

The invention relates to a laser speckle blood perfusion imaging method comprising the following steps: 1) obtaining contrast ratio data of each pixel of an original laser image; 2) preprocess that contrast ratio data and converting it into blood flow perfusion amount; 3) mark the blood flow perfusion amount corresponding to different pixel points with different colors. Compared with the prior art, the invention has the advantage of fast equal calculation speed, highlight the region with fast aggregation and aggregation movement of red blood cells, high practicability and popularization.

The invention provides a peach gum polysaccharide degradation product PGP-1.The peach gum polysaccharide degradation product PGP-1, with molecular weight between 1X10<5> and 1X10<6>, contains no neutral polysaccharide and consists of arabinose, xylose, mannose, glucose and galactose in a molar ratio of 0.637:0.054:0.073:0.022:0.556.The peach gum polysaccharide degradation product PGP-1 is simple to prepare and capable of promoting bifidobacterium growth remarkably, inhibiting enterococcus faecium growth remarkably, scavenging hydroxyl free radicals and DPPH free radicals effectively and inhibiting Hela cell growth remarkably; Galectin-3-mediated cell agglutination inhibiting experiments show that the peach gum polysaccharide degradation product PGP-1 is capable of remarkably inhibiting agglutination of chicken blood red blood cells, Hela cells and MCF-7 cells mediated by Galectin-3.

The invention discloses a qi and blood mixer, comprising a cylinder body (1) and a cap (2) that is connected with the top of the cylinder body (1); the bottom of the cylinder body (1) is provided with a blood feedback port (3); the cap (2) is provided with a qi and blood mixing passage (6) and an ozone input port (4) and a blood input port (5) which are communicated with the qi and blood mixing passage (6); the communication port between the ozone input port (4) and the qi and blood mixing passage (6) is higher than that between the blood input port (5) and the qi and blood mixing passage (6); the outlet of the qi and blood mixing passage (6) is close to the inner wall of the cylinder body (1) and communicated with the inside of the cylinder body (1); the included angle alpha between the qi and blood mixing passage (6) and the inner wall of the cylinder body (1) is less than 90 DEG. Qi and blood can be mixed in state of normal pressure and maintaining pressure, besides, foam cannot appear when qi and blood are mixed, thus greatly reducing damage of blood erythrocyte and enhancing the effect of qi and blood mixture.

The fast hymen regenerating and repairing medicine is prepared with hemoglobin 15-30 weight portions, lecithin 10-20 weight portions, amino acid 15-25 weight portions, albumin glue 2-10 weight portions, notoginseng 2-10 weight portions, saffron 1-8 weight portions, protein 5-15 weight portions, cellulose 10-20 weight portions, and free coagulase 5-15 weight portions. The present invention is used in the local targeting process to provide hymen root cell with nutritious components and active growth elements, to activate cells for division and regeneration and to regenerate hymen. The present invention has excellent treating effect.

The invention relates to a composition for promoting iron absorption and the application thereof. A functional composition for promoting iron absorption comprises, by weight, 0.04 to 0.1% of lactoferrin and 0.01 to 0.35% of casein glycomacropeptide. The composition can be used in nutritional supplements or dairy products. The composition can improve the absorption and utilization rate of an organism on iron and promote the increase of the number of red blood cells and the content of hemoglobin in blood.

The invention discloses a quantitative detection kit for growth hormone. The quantitative detection kit comprises an experimental buffer solution, concentrated washing liquor, an enhancement solution, a coated plate, a standard product, a quality control product and a marker, wherein the enhancement solution is prepared from 1 to 5 mg/L of beta-naphthoyltrifluoroacetone, 15 to 30 mg/L of tri-n-octylphosphine oxide and a third buffer solution; the coated plate is prepared from coating liquid, confining liquid and a reaction plate; the coating liquid is prepared from 1 to 10 ppm of Proclin300, a fourth buffer solution and 1 to 10 [mu]g/ml of a growth hormone monoclonal antibody; the confining liquid is prepared from 1.0 to 10.0 g/L of trehalose, bovine serum albumin with the mass volume ratio of 0.4 to 0.6 percent and the fourth buffer solution; the standard quality and the quality control product are filter paper dried blood pieces; the filter paper dried blood pieces comprise mixtures with 8 concentrations; the mixtures comprise red blood cells, de-hormone negative serum mixed matrixes and the growth hormone; and the marker is prepared from the growth hormone monoclonal antibody and a lanthanide ion chelate according to (1: 1) to (1: 6) m/m. The invention further discloses a preparation method of the kit. The kit disclosed by the invention can ensure that a detection result is highly consistent with a detection result of a serum sample.

The invention relates to a method for separating uterine membrane mesenchymal stem cells by dissolving menstrual red blood cells with tea saponin, comprising the following steps: (1) preparing reagent: preparing tea saponin solution; 2, obtaining cell precipitation: filtering menstrual blood sample, centrifuging to remove upper plasma to obtain cell precipitation A; adding a tea saponin solution into the cell precipitation A, fully and uniformly mixing the tea saponin solution, removing the supernatant by centrifugation after standing, and obtaining the cell precipitation B; and (3) cell culture: suspending cell precipitate B in a cell culture medium in an incubator for adherent culture, and collecting the third passage cells to be mesenchymal stem cells. As the method adopts tea saponin,the uterine membrane tissue other than the mononuclear obtained by the traditional method can be obtain without damaging the target cells, and the uterine membrane mesenchymal stem cells can be obtainby inducing the mononuclear cells and the uterine membrane tissue from the menstrual blood rapidly and efficiently, and the number is several times of the of the traditional white membrane layer.

The invention discloses a sodium ion corrected erythrocyte hematocrit test system and a test method, and the system comprises a sodium ion electrode test unit for measuring the concentration of sodiumions in a blood sample; an impedance test unit for measuring the whole blood impedance of the blood sample; and a calculating unit which is connected with the sodium ion electrode test unit and the impedance test unit and is used for calculating the hematocrit of the blood sample. According to the system, the sodium ion electrode test unit is added to carry out a sodium ion concentration test ina whole blood hematocrit test of an impedance electrode, and the influence of the factor on whole blood impedance is corrected, so that the accuracy of the hematocrit test is improved, and clinical errors are avoided. Meanwhile, the test system is simple in structure, high in test speed, convenient to use, low in price and low in HCT detection cost. The test method is small in error and high in test efficiency and accuracy.