41 results about "Venous blood" patented technology

The application discloses a lower limb venous thrombosis prevention training device and particularly relates to the field of training devices. The device comprises a support frame, both sides of the bottom of the support frame are provided with placing grooves, a sliding block is slidably connected to the support frame, a limiting groove is fixedly connected with the sliding block and slidably connected to the support frame, two driving racks are symmetrically arranged on the two sides of the sliding block and fixedly connected with the sliding block, two first driving gears are respectively engaged with the corresponding driving racks, each first driving gear is rotatably connected to the support frame, two flexible shoes are symmetrically arranged and each flexible shoe can be detachably connected with the limiting groove and the first driving gear, and a driving assembly can be driven by a user to move the sliding block. The application solves the problem that the existing prevention training device is not suitable for the elderly patients with insufficient muscle strength and improves the initiative of patient training.

The invention relates to medicine, in particular to gerontology and therapy and can be used for treating sarcopenia in elderly patients.Summary of the invention consists in alternating for 1…2 days the intravenous administration of ozonized 0.9% NaCl solution and major autohemotherapy, namely 500 mL of a 0.9% NaCl solution ozonized with an ozone-oxygen mixture, with an ozone concentration of 5…10 µg / mL, are administered, and major autohemotherapy consists in collecting 300…400 mL of venous blood from the patient, which is ozonized, with an ozone concentration of 15 µg / mL and transfused to the patient, the treatment course includes 8…10 consecutive procedures, then it is extended with minor autohemotherapy, which consists in collecting 5…10 mL of venous blood, which is ozonized, with an ozone concentration of 15 µg / mL and administered intramuscularly every 10th day of alternation and includes 3 consecutive procedures, and the ozonized 0.9% NaCl solution is administered for up to 6…8 weeks.

The application discloses a kind of prevention instruments for deep vein catheter thrombus, belong to thrombus prevention technical field.It includes bottom plate, one end of bottom plate is equipped with deflection block, the bottom plate is equipped with fixed plate behind deflection block, one end of fixed plate is fixedly connected to bottom plate, the other end of fixed plate is equipped with sliding column, one end of sliding column is surface contact with deflection block, the other end of sliding column is equipped with torque amplification assembly on both sides, torque amplification assembly includes first connecting rod, one end of first connecting rod is rotatably connected to the other end of sliding column, second connecting rod is equipped on the other end of first connecting rod, one end of second connecting rod is rotatably connected to the other end of first connecting rod, traction rope is equipped on the other end of second connecting rod, stand is equipped on second connecting rod, one end of stand is connected to bottom plate, the other end of stand is rotatably connected to second connecting rod.This technical scheme is used to improve the prevention effect of venous thrombosis.

This invention discloses an early screening system and method for hyperuricemia based on fingertip blood uric acid detection. The system includes a fingertip blood collection module, a detection module, a data processing module, a storage module, an analysis module, an early warning module, a display module, a communication module, a calibration module, and a power supply module. It accurately collects fingertip blood samples from subjects, obtains blood uric acid concentration data using specific detection equipment, constructs a multi-dimensional analysis model based on clinical characteristic parameters, and determines the optimal diagnostic cutoff value based on ROC curves, achieving rapid and accurate screening for hyperuricemia. The method includes steps such as sample collection, detection, data processing, model analysis, result determination, and early warning. It is simple to operate, fast, and highly accurate, solving the problems of poor compliance and difficulty in grassroots implementation associated with traditional venous blood testing. It is suitable for large-scale population screening and early diagnosis of hyperuricemia in areas with scarce medical resources, and has significant clinical application value and social significance.

FIELD: molecular biology.SUBSTANCE: method for predicting a high risk of adverse outcome in a patient with purulent lung disease (PLD) infected with gram-negative bacteria of the Klebsiella pneumoniae species is described. The method involves isolating DNA from peripheral venous blood and determining variants of the AQP4 rs1058424 gene. When the AQP4 rs1058424 AA genotype is detected in a patient with PLD and the presence of signs of Klebsiella pneumoniae infection, a high risk of death is determined.EFFECT: based on the determination of the AQP4 rs1058424 genotype for patients with PLD and identified gram-negative bacteria, it becomes possible to fairly early divide hospitalized patients with purulent infection into high-risk and low-risk groups for a fatal outcome.1 cl, 4 ex

This invention discloses a method and system for simultaneous analysis of multiple lipid indicators in fingertip capillary blood, relating to the field of chemical analysis. The method includes S1: micro-sample pretreatment of fingertip blood; S1.5: sample matrix interference pretreatment; S2: multi-channel parallel specific reaction; S3: multi-band spectral synchronous detection; S4: machine learning intelligent calibration and analysis; and S5: result output and quality control verification. This method and system achieves simultaneous detection of five core lipid indicators in fingertip blood samples in a short time, with low deviation and cross-interference rates between the detection results and venous blood biochemical detection, and high matrix interference inhibition rate. It also possesses advantages of portability, speed, and accuracy, solving the problems of low detection efficiency, limited applicability, and matrix interference affecting accuracy in existing technologies.

A system for determining a global hypoperfusion index (GHI) includes an arterial blood pressure sensor, a ventricular blood pressure sensor, an oximetry module, and an integrated hardware unit including a system processor and a system memory. The system memory includes instructions that cause the system to receive arterial hemodynamic data, ventricular hemodynamic data, and blood oxygen saturation data. One or more right ventricular pressure features, one or more pulmonary artery pressure features, one or more cardiac output parameters, and one or more venous oxygen saturation parameters are derived from the arterial hemodynamic data, the ventricular hemodynamic data, and the blood oxygen saturation data. The GHI is derived by using a predictive decision model based upon the one or more right ventricular pressure features, the one or more pulmonary artery features, the one or more cardiac output parameters, and the one or more venous oxygen saturation parameters.

This blood purification apparatus comprises: a first electrode that is in contact with an arterial blood line connected to a blood purifier; a second electrode that is in contact with a venous blood line connected to the blood purifier; and a measurement unit that measures the impedance between the first electrode and the second electrode. At least one of the first electrode and the second electrode is provided with an electrode unit (60). The electrode unit (60) includes a reception part (62) in which a tube (58) provided in the arterial blood line or the venous blood line is disposed. The reception part (62) is provided with: a contact surface (64) that is in contact with the outer surface of the tube (58); and an electrode part (66) provided along the contact surface (64).

The application relates to the technical field of medical bloodletting devices, and discloses a safe and sealed venous bloodletting device which comprises an electric pump, a fixing seat connected with the air inlet of the electric pump through a hose, a constant-pressure cavity arranged in the fixing seat, the constant-pressure cavity being communicated with the air inlet of the electric pump, a needle tube detachably mounted on the fixing seat, an open end of the needle tube being communicated with the constant-pressure cavity, a three-way joint arranged at the liquid suction end of the needle tube, two one-way valves respectively mounted at the other two openings of the three-way joint, one of the one-way valves being connected with a blood storage bag through a hose, and the other one-way valve being connected with a needle through a hose. The electric pump intermittently sucks and fills air, continuous blood drawing and blood discharging are realized, the blood of a patient is delivered into the blood storage bag, the process is simple in operation, is not prone to professional exposure, a smaller needle is adopted, the patient has lower discomfort, the bloodletting speed can be adjusted, the application range is wide, the consumables are convenient to replace, the cost is low, and the clinical practicability is high.

This invention relates to the field of gene polymorphism detection technology and discloses a venous thrombosis risk gene detection kit based on LAMP technology. The kit includes primers and probes for detecting polymorphic sites in venous thrombosis risk genes, detection reaction system components, reagent A and reagent B, positive control A, positive control B, and a negative control. Reagent A and reagent B respectively contain matched primers and probes and the detection reaction system components. Reagent A is a 4G, C, AAG, G, or T reaction tube, and reagent B is a corresponding 5G, T, del, A, or C reaction tube. This invention avoids interference between primers and probes by physically isolating reactions of different nucleic acid sequences in independent reagents A and B. Simultaneously, it utilizes polymerase and cresol red to convert changes in system components into color changes, achieving simultaneous visualization and accurate genotyping of multi-target amplification signals without instrument assistance.

This invention discloses a method for blood collection from the right adrenal vein, belonging to the field of venous blood collection methods. The method includes the following steps: providing an RH catheter, which is a dedicated catheter for hepatic artery angiography, with its tip bent 180° to form a plane, and its tip bent perpendicularly to this plane at 90°; inserting the RH catheter through the right femoral vein, advancing it to form a loop in the right atrium, and then pulling it back to the inferior vena cava; adjusting the direction of the RH catheter, using its three-dimensional curved portion to hook onto the opening of the right adrenal vein, thereby inserting it into the right adrenal vein; injecting contrast agent to confirm that the tip of the RH catheter is located within the right adrenal vein; collecting a blood sample from the right adrenal vein through the RH catheter, with a single blood sample volume of 12 ml; after blood collection, performing post-confirmation angiography to verify whether the RH catheter is located within the target vein. This invention can significantly improve the success rate of right-side catheter insertion and blood collection efficiency, while reducing costs and facilitating operation.

This invention relates to the field of medical device technology and proposes an inflatable medical protective restraint belt, comprising a belt body, a distal airbag, a mid-section airbag, a proximal airbag, a gas distribution valve assembly, a micro air pump, and a micro geared motor. By sequentially arranging the distal, mid-section, and proximal airbags along the longitudinal direction of the limb within the belt body, and utilizing three circumferentially different air distribution channels with varying lengths and phases on a rotating gas distribution valve core, the three airbags inflate and deflate sequentially from distal to proximal as the valve core rotates continuously. This solves the technical problem of existing restraint belts causing obstruction of venous return and swelling due to blood pooling at the distal end of the limb caused by constant pressure. It achieves the technical effect of periodically applying pulsating pressure from distal to proximal to the limb during restraint, promoting venous blood return to the proximal end, and resolving the problems of reliance on nursing manpower and the potential for safety gaps in existing technologies.

1. Name of the product in this design: Compression Socks (A202). 2. Purpose of this design: To promote venous blood return in the lower limbs through gradient pressure, thereby preventing, alleviating and assisting in the treatment of related lower limb vascular and circulatory problems. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. This design is for a thin product; therefore, top and bottom views are omitted.

This invention belongs to the field of medical device technology and discloses a finger rehabilitation exercise device for radial artery hemostasis. The device includes a hand ring with a traction component installed on its front side. The traction component is connected to four connecting ropes spaced vertically. Finger sleeves are connected to the ends of the connecting ropes, and elastic return ropes are connected to the rear side of the finger sleeves. Four positioning adjustment components with vertical spacing are located on the rear side of the hand ring. These positioning adjustment components are movably connected to the elastic return ropes, automatically driving the fingers to complete regular flexion and extension exercises. This effectively promotes blood circulation in the hand, prevents finger swelling and stiffness and venous thrombosis, while not affecting wrist hemostasis compression. The adjustable intensity can adapt to different patients, significantly improving the safety and convenience of postoperative rehabilitation.

The utility model discloses a kind of for venous blood sampling and indwelling needle puncture integration mechanism, it is related to medical instrument related technical field, including anti-needle protection cover, the side of anti-needle protection cover is equipped with needle handle, and steel needle is fixedly connected on the upper end of anti-needle protection cover;The bottom end of anti-needle protection cover is equipped with connecting pipe, and one end of connecting pipe is provided with the auxiliary blood sampling mechanism for carrying out blood sampling.The puncture integration mechanism for venous blood sampling and indwelling needle, by pinching needle handle and with cannula steel needle is inserted into blood vessel inside, when needing to carry out venous blood sampling, tube plug puncture needle is inserted into the inside of vacuum blood collection tube, utilize connecting pipe can transport venous blood, when indwelling needle is inserted, the blood sampling of vein is completed simultaneously, can effectively reduce the discomfort caused by repeated needle insertion to patient, reduce the generation of wound, after blood sampling, steel needle and mounting seat exit synchronously, do not affect subsequent infusion and injection medicine.

The present application relates to the field of blood taking needle production equipment, especially to a venous blood taking needle automatic assembling equipment with safety seat, comprising a rack, a turntable and a plurality of carriers arranged on the turntable, further comprising a feeding station, an assembling station, a pressing station, a heat sealing station, a detection station and a discharging station arranged in sequence around the turntable and corresponding to the carriers. The equipment realizes automatic feeding, assembling, heat sealing, detection and discharging of the blood taking needle with needle wing and safety seat by setting multiple stations, cooperating with the turntable and the carriers. The cooperation of the clamping jaws, the clamping seats and the cylinders makes each station work flexibly in clamping, placing and moving the blood taking needle and its components. The whole process is automatically and efficiently completed without too much manual intervention, which not only saves labor cost but also improves the assembling efficiency and avoids the incorporation of foreign matter in the assembling process.

The application belongs to the technical field of biomedical engineering industry, and particularly relates to a double-filter type blood purification dialysis device. In the prior art, the overall purification effect is limited. In addition, the arterial and venous blood vessel interfaces are mostly exposed, which is easy to contact with environmental bacteria. This not only increases the work burden of medical staff, but also easily causes bacterial residues due to operation negligence, thereby causing interface pollution. The present application provides the following scheme, which comprises a base, universal wheels are arranged at the bottom of the base, and a rack is fixedly installed on the top of the base. The double-stage purification structure of coarse filtration and fine filtration is adopted to simultaneously remove middle and small molecule toxins. The blood vessel interface is arranged in the mounting groove in the dialysis machine body, and the automatic closing structure of the protective cover is matched. The blood passage is not directly exposed to the external environment, the risk of interface contacting bacteria is eliminated from the structure, manual cleaning and sealing are not needed, and the use safety is further ensured.

Systems and methods are provided for removal of clot material from a treatment site in a blood vessel, particularly in venous vasculature. A treatment device can include a core member having a distal portion and an inner coil surrounding the distal portion of the core member. A helical outer member surrounds at least a portion of the inner coil, and a sheet of flexible material extends between the inner coil and the helical outer member, such that the sheet extends helically around the inner coil to provide a surface for clot engagement at the treatment site.

The application discloses peripheral blood CD8 + The application discloses an application of T cell absolute count as a biomarker in prevention or evaluation of pulmonary lymphangioleiomyomatosis. The application breaks the limitation of traditional methods mainly depending on imaging or single serological index, provides a novel diagnosis strategy based on peripheral blood immune cell absolute count, is convenient for sampling (venous blood can be drawn), has low detection cost, can be used for dynamic monitoring of patient's disease severity and prognosis stratification, and lays a solid foundation for subsequent development of immune regulation target drugs for S-LAM.

This invention relates to a process through which intravenous fluids, blood, or artificial blood containing high-levels of mechanically-injected dissolved oxygen can be used to maintain appropriate oxygen levels in the venous blood and thereby provide short-term oxygenation support for compromised or trauma patients. In one aspect, there is provided a system and process for oxygenating a biological fluid for use in a compromised or a trauma subject in need of oxygenation support to maintain appropriate oxygen levels in the subject, the process comprising: supplying oxygen gas from an oxygen source; and dissolving an amount of the supplied oxygen into a biological fluid to obtain an oxygen enriched biological fluid.

The utility model relates to medical measuring instrument technical field, and disclose a kind of lower limb venous thrombosis leg circumference measuring scale, including frame, the both ends of frame are fixedly connected with magic band, the inside fixed connection of frame has two long poles, the surface sliding connection of long pole has three sliding plates, two The inside fixed connection of sliding plate has slide bar, the surface sliding connection of slide bar has sliding block, the surface sliding connection of sliding plate has casing.This lower limb venous thrombosis leg circumference measuring scale, by setting the sliding rule to the both ends of patella center point, so that the patella center line is obtained after marking pen, two sliding rules can be respectively aligned with the upper and lower measurement area position of patella, guarantee the accuracy of the measurement position of sliding rule compared with the midpoint line of patella, more conducive to the measurement of patient venous thrombosis leg circumference in clinical application.

The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a puncture-preventing venous blood taking needle. The puncture-preventing venous blood taking needle comprises a blood taking needle body, a blood injection needle body, a hose and a puncture-preventing mechanism, the blood taking needle body comprises a blood taking needle head, a blood taking needle head seat and a blood taking needle wing; the blood injection needle body comprises a blood injection needle head, a blood injection needle head seat and two elastic pressing pieces; the puncture-preventing mechanism comprises a first protection assembly and a second protection assembly which are arranged on the blood taking needle head seat and the blood injection needle head seat respectively. When the blood taking amount in the blood taking tube reaches the required blood amount, the blood in the hose is cut off by pressing the two elastic pressing pieces, blood continues to enter the blood taking tube is prevented, the blood taking amount in the blood taking tube and the proportion of the coagulant or the anticoagulant in the blood taking tube are correct, and when the blood injection needle body is separated from the blood taking tube, the hose is pressed by the two elastic pressing pieces, blood dripping from the blood injection needle head to contaminate the hands of medical staff or the operation table top is prevented.

FIELD: neurology; laboratory diagnostics.SUBSTANCE: used for the differential diagnosis of Parkinson's disease not associated with mutations in the GBA1 gene, and multiple system atrophy. The patient's peripheral venous blood is collected, from which mononuclear cells are isolated by gradient centrifugation, followed by their differentiation into a primary culture of macrophages in the presence of the macrophage colony-stimulating growth factor M-CSF to ensure proliferation and differentiation of monocytes into mature macrophages. The obtained blood macrophage cells are applied to 903 filter cards at a concentration of 2×106 cells / ml. Whatman 903 Sample Collection Cards can be used as 903 filter cards. The activity of lysosomal enzymes is determined: glucocerebrosidase GCase, alpha-galactosidase GLA, acid sphingomyelinase ASMase, galactosylceramidase GALC by high-performance liquid chromatography in combination with tandem mass spectrometry. The value of the canonical linear discriminant function CLDF is calculated using the stated formula. If the value of CLDF is ≥ 43.44, the patient is diagnosed with multiple system atrophy. If the value of CLDF is < 43.44, Parkinson's disease is diagnosed in patients who do not have a mutation in the GBA1 gene.EFFECT: method enables reliable and accurate differential diagnosis of Parkinson's disease and multiple system atrophy by assessing the activity of lysosomal enzymes.2 cl, 2 dwg, 2 ex

Provided is a blood circulation circuit capable of reducing manufacturing costs and maintenance costs. A blood circulation circuit (1) includes a blood removal line (2) that removes venous blood, a blood reservoir (4) that is connected to the blood removal line (2) and stores blood that has flowed through the blood removal line (2), a negative pressure adjustment device (6) that adjusts the negative pressure inside the blood reservoir (4), a blood pump (5) that transports the blood of the blood reservoir (4), an artificial lung (7) that performs gas exchange on the blood that has been sent from the blood pump (5), and a blood recovery line (3) that is connected to the blood reservoir (4) and sucks blood from a surgical site by the negative pressure of the blood reservoir (4).

1. The name of the design product: blood vessel imaging apparatus. 2. The use of the design product: equipment for displaying the venous blood vessels in real time on the human body. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a self-adaptable and fixable coagulation monitoring flexible pressure sensor and a preparation method thereof. The pressure-sensitive layer of the flexible pressure sensor is a nanofiber membrane with hundred-microstructure prepared by an electrospinning process. The nanofiber membrane is prepared by mixing polylactic acid with shape memory as a base material and multi-walled carbon nanotubes as a conductive substance. The preparation method of the flexible pressure sensor is simple, and the flexible pressure sensor has high sensitivity under small load. The pressure-sensitive layer of the sensor has an initial shape and a temporary shape, and can be transformed between the initial shape and the temporary shape under external stimulation driving. The installation and fixation of the flexible pressure sensor are realized by controlling the deformation process of the sensor. The nanofiber membrane is spontaneously deformed and inwards shrunk to be attached on a central venous catheter, so that the fixation is realized. The stability of the flexible pressure sensor is improved, the flexible pressure sensor is adaptively installed at the front end of the central venous catheter, and the blood flow pressure in the venous blood vessel can be monitored in real time.

The present application relates to the technical field of medical thrombus prevention equipment, in particular to a lower limb intelligent pressure regulating elastic sock integrated with ultrasonic monitoring and a working method thereof, which comprises a medical elastic sock body and further comprises: a plurality of patch ultrasonic transducer units, which are correspondingly arranged in a plurality of internal fixing cavities of the medical elastic sock body and are sequentially arranged from top to bottom along the anatomical sites of the main trunk veins of the lower limbs of human bodies, and the sound window surfaces of the patch ultrasonic transducer units are all attached to the skin through coupling gel, and are used for non-invasive quantitative collection of ultrasonic echo signals of lower limb venous hemodynamics. The present application realizes efficient and safe prevention through innovative closed-loop linkage, differentiated driving and precise controllable pressurization. Taking the ultrasonic monitoring quantitative blood flow index as the core trigger signal, the present application breaks through the technical barriers of traditional ultrasonic diagnosis and passive prevention of elastic socks, constructs an integrated closed loop of "monitoring-early warning-intervention", dynamically adapts the risk level, and significantly improves the timeliness and accuracy of prevention.

The utility model provides a kind of support frame for preventing venous thrombosis, including support frame pedestal and adjusting lever, fixed bearing seat is installed in the upper end right side of support frame pedestal, rotating shaft is installed between two fixed bearing seats, two fixed rings are fixed outside rotating shaft, two fixed rings upper left end are obliquely fixed with support plate, this design solves the original neurology postoperative support frame for preventing venous thrombosis, when adjusting inclination angle, it needs manual manual screwing adjusting turntable, it is not enough convenient, in addition, it is generally supported by support block to support plate, it is easy to make support plate wobble phenomenon, affect the problem of patient lower limb placement stability, the utility model uses button control electric drive type lifting structure, can realize the quick inclination adjustment of support plate, cooperate with the fitting limit of air bag, elastic band and magic tape, can guarantee the fitting and stability of patient lower limb placement.

FIELD: occupational medicine.SUBSTANCE: used to diagnose immunocompromise in workers exposed to mixed aerosols containing crystalline silicon dioxide from 10 to 70% and metals in the solid phase. Samples of venous blood and smears from the mucous membrane of the pharynx are taken. In the presence of Streptococcus pneumoniae DNA in scrapings from the mucous membrane of the pharynx and with the level of immunoglobulin M in the blood serum≤ 1.7 g / l is used to diagnose immunocompromise in workers exposed to mixed aerosols containing crystalline silicon dioxide from 10 to 70% and metals in the solid phase.EFFECT: method provides the possibility of selecting immunocompromised workers exposed to industrial mixed aerosols for priority vaccination against pneumococcal infection at the stage of periodic medical examination, by determining the level of immunoglobulin M in the blood serum and Streptococcus pneumoniae DNA in swabs from the mucous membrane of the pharynx.1 cl, 1 tbl, 1 ex