51 results about "Free blood" patented technology

A blood drawing system including a closeable first conduit through which drawn blood can flow; a first pressurizeable collection vessel for receiving blood therein; a hollow-shaft member; a second conduit leading from the first conduit to the first collection vessel; and a third conduit leading from the first conduit to the hollow shaft member connectable to a negative-pressure second collection vessel. Closing the first conduit allows blood transfer from the first vessel into the second vessel without exposure to or inclusion of any external devices to accomplish such transfer. Also included is an intravenous system with a conduit through which medicament liquid can be delivered and from which medicament liquid-free blood can be withdrawn. A first pressurizeable vessel first removes and conserves for reintroduction residual medicament liquid from the conduit, while thereafter a second negative-pressure vessel draws subsequent medicament liquid-free blood from the conduit.

The invention belongs to the technical field of biomedical engineering and relates to a cuff-free noninvasive long-time continuous blood pressure monitoring method. The method includes: acquiring physiological and pathological characteristic parameters through an electrocardiosignal and photoplethysmography signal monitoring subsystem connected with a computer; subjecting the parameters to seamless fusion and processing analysis through a blood pressure noninvasive dynamic monitoring model cluster and a blood pressure dynamic long-time monitoring software subsystem to obtain a blood pressure value of each heart beat and realize dynamic long-time continuous blood pressure monitoring. Starting from cuff-free blood pressure measurement, the blood pressure noninvasive dynamic monitoring modelcluster is constructed according to the patient's physiological and pathological characteristic parameters monitored by the signal monitoring subsystem on the basis of a patient individual difference-characteristic parameter average influence value-machine learning method, and accordingly a model self-correction function of the system in blood pressure long-time continuous measurement is achieved.By adoption of the method, monitoring precision and stability in blood pressure long-time measurement are improved, and continuous beats or long-time measurement of the blood pressure are realized, so that an effective foundation can be laid for hypertension prevention and treatment.

A simple and robust on-chip blood plasma separation device is provided. The device is configured to integrate with downstream detection modules and provides sample-to-answer microfluidic POC diagnostics devices.

The invention provides a wrist-belt-free blood pressure measuring system. The wrist-belt-free blood pressure measuring system comprises a fitting unit, a physiological signal obtaining and quality online calculation unit, a pulse wave transmission time online calculation unit, a Kalman filtering unit and a blood pressure calculation unit, wherein the fitting is used for function fitting of reference blood pressure data and pulse wave transmission time; the physiological signal obtaining and quality online calculation unit is used for evaluating waveform quality, obtained in daily work and living conditions, of physiological signal waveforms online, and a waveform quality factor is obtained; the pulse wave transmission time online calculation unit is used for calculating pulse wave transmission time from the physiological signal waveforms, wherein the pulse wave transmission time is a sequence; the Kalman filtering unit is used for Kalman filtering of blood pressure or pulse wave transmission time; the blood pressure calculation unit is used for calculating blood pressure according to the pulse wave transmission time and fitting parameters, and the blood pressure is a sequence. The system can reduce influences, caused by noise through the physiological signal waveforms, on blood pressure monitoring precision, and wrist-belt-free dynamic and continuous blood pressure measurement precision is improved.

The invention provides a blood platelet antibody specificity identification method and a kit thereof. The method comprises the following steps: (1) connecting different blood platelet specificity glycoprotein to different fluorescent microsphere surfaces to obtain antigen specificity fluorescent microspheres for standby use; (2) adding the antigen specificity fluorescent microspheres into a sample to be detected to perform an incubation reaction, and washing for standby use; and (3) adding a fluorescent marked anti-human IgG into step (2) to perform the incubation reaction, washing, and performing flow cytometry detection. The blood platelet antibody specificity identification method solves the problems that the blood platelet antibody detection in the prior art mainly targets at an antigen-self blood platelet antibody complex on the surface of the blood platelet and does not detect free blood platelet antibodies in plasma or serum, and the detection result of the blood platelet antibody is imprecise; and moreover, the method is simple in steps, easy in operation, short in time comsuming and higher in efficiency.

The invention discloses a blood collection-free blood sugar measurement instrument and a testing method. The blood collection-free blood sugar measurement instrument comprises a human body resistance signal acquisition device, wherein the human body resistance signal acquisition device is connected to a host. The method comprises the following steps of: selecting proper human body cuticle parts at two ends of contact electrodes, processing the human body cuticle parts of the contact electrodes by using disinfectants, and waiting for a period of time, so that the testing environment of the cuticle parts is in a normal state, and the two electrodes are contacted to the processed cuticle parts; connecting an instantaneous high-frequency weak current, transmitting the current and voltage signals to the host, converting the current and voltage signals into digital signals, and numerically converting the digital signals into numerical value of blood sugar; and finally, displaying the numerical value as the numerical value of blood sugar, and comparing the measured numerical value of blood sugar with a standard numerical value. More users can conveniently measure the own blood sugar at any time any where, and the blood collection-free blood sugar measurement instrument is convenient and practical; and moreover, the measured numerical value is extremely close to the blood sampling numerical value, the tested numerical value is accurate, and the error of the tested numerical value is avoided.

The present invention relates to congenital foundation securing and health-preserving noodle for activating kidney cell which is prepared by properly mixing wheat flour 80-86%, strain 2% and 24 kinds of functional materials 12-18% to achieve function of congenital foundation stabilization and health preservation. The functional materials consists of yang-tonifying material, qi-tonifying material, blood-tonifying material, yin-tonifying material, blood-activating and blood stasis resolving material, constraining material, interior warming material, qi regulating material and diuresis inducing material. The production method of the inventive product includes the steps of checking material, drying materials, grinding materials into powder, mixing, preparing biological liquor, bio-fermenting, debitterizing, mixing materials, compacting noodles, drying and packaging. The inventive product can completely nourish and repair gene, supplement and restore cell activity, energize human, intensify five clearness of human, that is , free qi moving, free meridians and collaterals, free blood vessels, free food intake, free excretion, secure congenital foundation and nourish health.

The invention discloses a wrist-type blood oxygen measuring device without accessories and a manufacturing method thereof. The device comprises a PCBA circuit main board and an FPC flexible circuit board arranged on the PCBA circuit main board. The left and right sides of the FPC flexible circuit board are respectively A photosensitive sensor and a red/infrared dual light source light-emitting diode are fixed, an FPC bearing part is arranged on the FPC flexible circuit board, a housing measurement contact part is fixed on the FPC bearing part, and a spacer is integrally formed on the housing measurement contact part. Light wall and light-blocking wall; add a light-blocking wall between the photosensitive sensor and the red/infrared dual light source light-emitting diode, which can better block the light emitted by the light-emitting diode from being directly reflected by the surface of the skin under test to the photosensitive sensor that receives the signal; A light-blocking wall is added around the soft rubber to better isolate the signal interference of ambient light on the signal receiver, thus significantly improving the measurement accuracy.

The invention discloses a processing method of duck blood bean curd, and belongs to the technical field of food processing. The method adopts fresh duck blood as a raw material, and adopts processingtechniques such as collection, wall breaking treatment, addition of an enzyme and a composite coagulant, sterilization, refrigeration and storage to obtain a duck blood bean curd product with compacttexture, elasticity, bright color, good water retention and a quality guarantee period of 15 days at 4 DEG C in a refrigerator. The duck blood bean curd has obviously improved content of free blood hemoglobin, and can be more easily absorbed by the human body, and the texture, color, flavor and shelf life of the product are superior to related patent technologies in the prior art.

The invention relates to a blood sampling pen convenient for unloading pricking cap. The blood sampling pen comprises a shell, a shooting rod and a needle unloading rod, and is characterized in that an elastic lug and a blocking surface are arranged between sliding matching surfaces of the needle unloading rod and the shooting rod, wherein the elastic lug is arranged on one sliding matching surface, the blocking surface is arranged on the other sliding matching surface, and the elastic lug and the blocking surface are positioned on a same sliding path. In a needle unloading state, as the needle unloading rod moves forwards relative to the shooting rod, the elastic lug and the blocking surface move towards each other; and when the distance between the elastic lug and the blocking surface iszero on the sliding path, interference is generated, the needle unloading rod forced to move forwards relative to the shooting rod is stopped, a blood sampling needle moves forwards away from the original position in a needle seat, and the needle tip of the blood sampling needle is exposed from a blood sampling end face so as to facilitate cap pricking. The scheme solves the problem that the prior cap unloading-free blood sampling pen is inconvenient to operate due to the fact that the prior cap unloading-free blood sampling pen has no stopping of cap pricking and observation of the needle tip is limited when the needle is unloaded.

The present invention relates to the development of novel of free blood fluid IgE Immunoenzymetric assay that is specifically designed to evaluate the blood fluid of patients on therapeutic agents designed to reduce free serum IgE levels, such as Omalizumab. The assay displays the robustness required for clinical analysis of serum containing such agents as Omalizumab.

The invention discloses a peel-off pseudo-ginseng mask and a preparation method of the mask. The peel-off pseudo-ginseng mask is prepared from the following raw materials in parts by weight according to a conventional method: 10-14 parts of polyvinyl alcohol, 8-12 parts of glycerol, 0.8-1.2 parts of hydrolyzed gadidae protein, 4-6 parts of alcohol, 6-8 parts of sodium myristoamphoacetate, 0.8-2 parts of pseudo-ginseng extract, 0.03-0.08 part of a compound antiseptic and 100 parts of de-ionized water, wherein the compound antiseptic consists of 1-3 parts of carnosic acid, 3-5 parts of antioxidants of bamboo leaf, 1-3 parts of nisin and 1-3 parts of iodopropynyl butylcarbamate. The peel-off pseudo-ginseng mask disclosed by the invention can be used for deeply cleansing facial skin, smoothing facial wrinkles and making skin elastic and tight. The peel-off pseudo-ginseng mask disclosed by the invention can also be used for effectively nourishing skin, freeing blood and qi, increasing skin elasticity and avoiding dark skin spots.

The invention relates to a drive-free blood pressure recorder measured data protection device and a method. According to the device, an IO port of a microcontroller is connected with a program control tristate bus line isolating controller, a NAND Flash storage and a control end of a USB (Universal Serial Bus) mass storage controller; a port of the program control tristate bus line isolating controller is connected with the NAND Flash storage and the USB mass storage controller; and the USB mass storage controller is connected with a USB port and communicates with a PC (Personal Computer) machine. On the basis of the device with a hardware structure, the comprehensive application of a bad block management technology, a data backup storage technology, a data verification technology and a data storage and management technology is combined, so that the protection and the preservation on ambulatory blood pressure measured data are achieved, equipment failure caused by the storage is reduced, the efficiency in monitoring the blood pressure of patients is improved, and the success rate of ambulatory blood pressure measurement is improved; through an embedded system with the combination of hardware and software, blood pressure signals are acquired, processed and stored; and data storage with high reliability requirements cannot be fallible, and the acquired ambulatory blood pressure data must be protected as much as possible so as not to be lost caused by self-reasons of the device.

The present invention relates to production process of neogenetic bovine serum, and is especially the production process of neogenetic bovine serum of BVDV antibody negativity for producing swine fever vaccine. The production process includes the steps of closed bacteria-free blood collection, letting stand to solidify, low temperature separation, screening BVDV antibody negativity serum, mixing, and membrane filtering. The present invention has the advantages of high production efficiency, high reliability, low cost, high swine fever vaccine quality, etc.

The invention relates to a suture-free blood coagulation auxiliary fixation heart patch and a preparation method thereof. The heart patch comprises a polymer procoagulant substrate and barb microneedles fixed on the polymer procoagulant substrate, and microporous structures which do not penetrate through a polymer solid substrate are arranged on one side surface, with the microneedles, of the polymer procoagulant substrate. The barb microneedles are microneedles with barbs, the included angle alpha between the microneedles and the plane where the polymer procoagulant substrate is located ranges from 60 degrees to 90 degrees, the microneedles are evenly distributed on the polymer procoagulant substrate, and the distribution density is 5-50/cm<2>. The barbs are located on the curved surfaces of the microneedles and face the polymer procoagulant substrate. According to the preparation method, a mold pore-forming method, a pore-forming agent pore-forming method or a thermally induced phase separation pore-forming method is adopted, the barb microneedles are combined while the microporous structures are formed, the suture-free blood coagulation auxiliary fixation heart patch is obtained, the method is simple, and the prepared heart patch is excellent in treatment effect.

The invention provides a medicament patch for treating rheumatoid hyperostosis and a preparation method thereof. The medicament patch uses the following medicaments for removing rheumatism, driving pathogenic cold, warming channels, freeing blood vessels, invigorating the liver and the kidney, strengthening sinew and bone, diminishing inflammation and easing pain: 50 to 70 parts of raw strychnos, 60 to 85 parts of unprocessed radix aconiti, 50 to 70 parts of unprocessed radix aconiti kusnezoffii, 20 to 30 parts of scorpion, 20 to 30 parts of cassia bark, 20 to 40 parts of grub, 20 to 40 parts of dragon's blood, 40 to 50 parts of unprocessed frankincense, 40 to 50 parts of unprocessed myrrh, 20 to 40 parts of stir-baked squama manitis and 40 to 50 parts of manchurian wildginger. The medicaments are combined in use to jointly play a role in warming channels, removing stasis, driving wind, dispelling cold, feeing vessels, dispelling damp, removing inflammation and relieving pain. The medicament patch has a substrate combining the advantages of traditional plasters and various plasters in recent years; the medicament patch needs no roasting in use; the viscosity of the medicament patch is constant with the temperature of human body and is lasting; and the medicament patch still has good effect after being repeatedly torn and pasted for over 20 days. The medicament patch has the characteristics of good treatment effect, rapid effectiveness, convenient use and safe and nontoxic compatibility.

The invention discloses an efficient granulation device for a donkey-hide gelatin blood-nourishing granule. The efficient granulation device comprises a box body, wherein a stirring hopper with a feeding port and a stirring device is arranged in the box body; the lower end of the stirring hopper is connected and communicates with a cylinder; a rotating shaft with an auger is arranged in the cylinder; a granule extruding cover is detachably connected to the end, away from the stirring hopper, of the cylinder; a pelletizing cutter is movably connected with the granule extruding cover; a rotary drum is arranged below the cylinder; fixed drums communicating with the rotary drum are arranged at the two ends of the rotary drum; a granule feeding hole is formed in the fixed drum on one side; a granule discharging hole is formed below the fixed drum on the other side; a transmission device enabling the rotary shaft and the rotary drum to rotate is arranged on one side of the box body; and a heating device is arranged on the side, away from the transmission device, of the box body. The sugar-free blood-nourishing granule is prepared in the invention and is beneficial to the body health of more people; and meanwhile, the granulation device disclosed by the invention can be used for mixing, granulating and drying raw materials, so the function of the device is not single and high-efficiency and high-quality granulation can be completed.

The invention discloses a cuff-free blood pressure prediction method based on a deep neural network model, which comprises the steps of: obtaining a data set comprising pulse wave signals and electrocardiosignals; pre-processing the obtained pulse wave signals and electrocardiosignals to obtain available signals, wherein the preprocessing comprises signal filtering, fixed-length cutting, peak value cutting/trough cutting, resampling and label value obtaining; and inputting the available signals into the deep neural network model to obtain a predicted systolic pressure value and a predicted diastolic pressure value, wherein the deep neural network model comprises a convolution adaptation layer, a residual network with a compression excitation module and a full connection layer which are connected in sequence, the input of the convolution adaptation layer is the available signal, and the output of the full connection layer is the systolic pressure value and the diastolic pressure value. According to the invention, the pulse wave signals and the electrocardiosignals are analyzed, so that the continuous dynamic blood pressure value can be predicted without a cuff.

The invention discloses dove blood tablets rich in active polypeptides capable of replenishing blood and a preparation method of the dove blood tablets. The preparation method comprises the followingsteps: (1) taking fresh dove blood which is taken in a bacteria-free blood sampling manner, adding sodium citrate to the taken dove blood for anticoagulation, and performing technologies of freezing and remelting for primary wall breaking; (2)adding a sodium ascorbate solution, sodium carboxymethyl cellulose and sodium alginate to the dove blood after primary wall breaking to protect and embed effective components; (3) performing enzymolysis on the treated dove blood under a certain condition, and performing enzyme deactivation to obtain dove blood enzymatic hydrolysate; (4) performing vacuumfreeze drying on the obtained dove blood enzymatic hydrolysate, performing crushing to obtain powder, and performing screening to obtain the dove blood powder rich in the active polypeptides capable of replenishing blood; (5) performing inactivation; and (6) uniformly mixing the obtained dove blood powder rich in the active polypeptides capable of replenishing blood with xylitol, corn starch and microcrystalline cellulose in proportion, performing granulation, performing screening, performing drying, performing granulation, then adding magnesium stearate, performing uniform mixing, and then performing tabletting. The obtained dove blood tablets rich in the active polypeptides capable of replenishing blood are high in stability, and good in absorptivity, and rich in active polypeptides andamino acids, and all nutrient components in the dove blood are reserved to the maximum extent.