50 results about "Cerebral blood flow" patented technology

A method of estimating blood flow in the brain, comprising: a) causing currents to flow inside the head by producing electric fields inside the head; b) measuring at least changes in the electric fields and the currents; and c) estimating changes in the blood volume of the head, using the measurements of the electric fields and the currents.

Stimulation of the facial nerve system (e.g., electrically, electromagnetically, etc.) in ischemic stroke patients will cause dilation of occluded arteries and dilation of surrounding arteries, allowing for blood flow to circumvent the obstruction and reach previously-deprived tissue. The device approaches the facial nerve and its branches in the vicinity of the ear. In use, the device can be inserted into the ear canal and / or placed in proximity to the ear in order to stimulate the facial nerve system non-invasively (e.g., using an electromagnetic field). The device can be used in the emergency treatment of acute stroke or chronically variations for long-term maintenance of blood flow to the brain and stroke prevention. Additional embodiments of the device may be adapted for use on different regions of the body.

The invention discloses a new traditional Chinese medicine composition for treating cerebral thrombosis and cerebral infarction and a preparation method thereof. The traditional Chinese medicine composition mainly comprises the following Chinese medicinal herbs such as dutchmanspipe root, fruit of immature citron, dried orange peel, pangolin scales, ground beeltle, ligusticum wallichii, cassia twig, angelica sinensis, radix paeoniae alba, root of red-rooted salvia, agilawood, rhizoma cyperi, rhizoma corydalis, radix curcumae, pseudo-ginseng, common burreed rhizome, curcuma zedoary, red flower, peach kernel, rhizoma gastrodiae, uncaria rhynchophylla, white muscardine silkworm, scorpio, styrax asiatic styrax and rhizoma acori graminei. The traditional Chinese medicine composition can be prepared into any one common oral preparation according to a conventional traditional Chinese medicine preparation method. The invention can remarkably improve the symptoms of aphasia from apoplexy, facial paralysis, numb hands and feet, blindness, dizziness and faint, hypertension, blood viscosity increase, insufficiency of cerebral blood supply and the like, and has accurate clinical treatment effect, remarkable treatment effect and rapid effect. The traditional Chinese medicine composition has the advantages of low cost, basically no toxic or side effects and the like.

Stimulation of the facial nerve system (e.g., electrically, electromagnetically, etc.) in stroke patients will cause dilation of occluded arteries and dilation of surrounding arteries, allowing for blood flow to circumvent the obstruction and reach previously-deprived tissue. The device approaches the facial nerve and its branches in the vicinity of the ear. In use, the device can be inserted into the ear canal or placed in proximity to the ear in order to stimulate the facial nerve system without puncturing the tympanic membrane (e.g., using an electromagnetic field). The device can also be advanced into the middle ear through a puncture created in the tympanic membrane. Branches of the facial nerve in the middle ear can then be stimulated directly (e.g., by application of electrical current). The device can be used in the emergency treatment of acute stroke or as chronically-implanted / inserted variations for long-term maintenance of blood flow to the brain and stroke prevention

Systems and methods are described for noninvasively assessing an intracranial pressure of a patient. Some embodiments include providing a simulation model with a measured arterial blood pressure of the patient. Some embodiments further include providing the simulation model with a measured cerebral blood flow velocity of the patient. The simulation model correlates arterial blood pressure values, cerebral blood flow velocity values, and intracranial pressure values. Some embodiments further includes determining an intracranial pressure of the patient based on the simulation model. Some embodiments further includes creating an output data set indicative of the determined intracranial pressure.

Stimulation of the facial nerve system (e.g., electrically, electromagnetically, etc.) in ischemic stroke patients will cause dilation of occluded arteries and dilation of surrounding arteries, allowing for blood flow to circumvent the obstruction and reach previously-deprived tissue. The device approaches the facial nerve and its branches in the vicinity of the ear. In use, the device can be inserted into the ear canal and / or placed in proximity to the ear in order to stimulate the facial nerve system non-invasively (e.g., using an electromagnetic field). The device can be used in the emergency treatment of acute stroke or chronically variations for long-term maintenance of blood flow to the brain and stroke prevention. Additional embodiments of the device may be adapted for use on different regions of the body.

A quantitative analysis method for the power spectrum to process the functional magnetic resonance data of brain includes such steps as acquiring functional magnetic resonance data, preprocessing, Fourier transform of time sequence, and quantitative analyzing to power of each frequency range one brain cell by one brain cell.

The invention relates to a functional magnetic resonance data processing method utilizing partial uniformity method which comprises, (1) acquiring and preprocessing brain function magnetic resonant data, (2) sorting the time sequence, (3) local consistency measurement. reading, etc. }, but also for but also for data analysis of non-task condition (such as resting) and brain function magnetic resonance data analysis for other non-linear conditions.

CPU 12 reads out the bloodstream associated values of target voxel of subject's standardized brain bloodstream images (step S34). CPU 12 sorts the bloodstream associated values in descending order (step S35). CPU 12 rejects bloodstream associated values that are ranked top 10% and bottom 40% (step S36). When the subjects are 20 for example, bloodstream associated values of highest 2 subjects and of lowest 8 subjects are rejected. CPU 12 calculates and stores mean value and standard deviation of remaining bloodstream associated values after the rejection (step S37). CPU 12 calculates mean value and standard deviation of bloodstream associated values for each voxel as target voxel (steps S31, S32, S33 and S38). Then, the alternative normal brain database of brain bloodstream image is obtained.

An orally taken Chinese medicine for treating the dizziness caused by cerebral ischemia, high-viscosity blood, etc is prepared from 6 Chinese-medicinal materials including pueraria root, Chuan-xiong rhizome, tuckahoe, Chinese angelica root, etc.

Disclosed herein are method and system for detecting and assessing brain injuries and conditions. The medical system is capable of detecting and assessing the severity of TBI is present. The determination is performed by multiscale analysis of complexity of cerebral blood flow velocity oscillations.

The invention discloses an ultrasonic system data segment choosing method, a storage medium and an ultrasonic device. The method comprises the steps of collecting brain blood flow data and continuous blood pressure data, wherein sampling points of the brain blood flow data and the continuous blood pressure data are synchronous; judging whether the brain blood flow data and the continuous blood pressure data meet a preset segment choosing condition or not; and if the preset segment choosing condition is met, automatically choosing sampling data segments of the brain blood flow data and the continuous blood pressure data according to a preset rule. According to the method, while the brain blood flow data and the continuous blood pressure data are collected, whether the collected data meets the preset segment choosing condition or not is judged; and when the preset segment choosing condition is met, the sampling data segments are automatically chosen according to the preset segment choosing rule, so that automatic choice of the brain blood flow data and the continuous blood pressure data is realized. Meanwhile, corresponding choice is performed while the brain blood flow data and the continuous blood pressure data are collected, so that the timeliness of the chosen sampling data segments is ensured.

The invention relates to a device used for treating or assisted-treating eye diseases such as myopy and the like and / or cerebral blood supply insufficiency and the new application of a prior massage device thereof. The device is used for flapping and / or rapping and / or stimulating and / or hackling a spondyle, a neck, an inner-layer periosteum as well as an outer-layer periosteum of a head, an aponeurosis, nerves and muscles, dredges the channels, restores the original elasticity of the head, the neck, the spondyle and venous veins and the capability of unidirectional blood return thereof at the same time, and increases blood circulation quality in a brain, provides the healing material basis to prevent, treat and assisted-treat the eye diseases such as myopy and the like and the diseases caused by cerebral blood supply insufficiency; and the device can effectively prevent, treat and assisted-treat the eye diseases such as myopy and the like and / or other disease symptoms caused by cerebral blood supply insufficiency.

CPU 12 reads out the bloodstream associated values of target voxel of subject's standardized brain bloodstream images (step S34). CPU 12 sorts the bloodstream associated values in descending order (step S35).CPU 12 rejects bloodstream associated values that are ranked top 10% and bottom 40% (step S36). When the subjects are 20 for example, bloodstream associated values of highest 2 subjects and of lowest 8 subjects are rejected. CPU 12 calculates and stores mean value and standard deviation of remaining bloodstream associated values after the rejection (step S37). CPU 12 calculates mean value and standard deviation of bloodstream associated values for each voxel as target voxel (steps S31, S32, S33 and S38). Then, the alternative normal brain database of brain bloodstream image is obtained.

The invention relates to extract of the steroid saponin produced from the yam or the yam with the guilder leaf which has the character of containing the 80%-90% the steroid saponin in the percentage by weight. The intravenous fluid produced from the extract of the steroid saponin can not only dilate the coronary, depress the myocardial oxygen consumption, melt the thrombus, improve the myocardial ischemia and the microcirculation, amend the function of the vas endothelial cell, increase the blood stream of the brain, prevent the ischemia brain cell injury, but also drop the blood pressure, the blood fat, the blood sugar; at the same time, it has the function of resisting inflammation, ease pain, codein, preventing asthma, dispelling the myospasm, improving the immunity and resisting the allergy. So it can cure the cerebrovascular, the rheumatism and the disease of the respiratory system. The invention has the good clinic extended value because of the low dosage of the active ingredient, the efficacy, the effecting quick and the high bioavailability.

The present invention relates to the diagnosis technology of cerebral ischemia, and is especially the detection method of human tissue kallikreinase in body fluid and its application in cerebral ischemia diagnosing kit. The detection method includes immunizing globin specifically with human tissue kallikreinase or human tissue kallikreinase segment for reaction with the tissue kallikreinase in biological sample to form immune compound; detecting the immune compound formed in the biological sample and comparing with reference sample to obtain the content of tissue kallikreinase in biological sample. One new type of biological cerebral ischemia marker with low detection cost and fast and simple screening is revealed. The cerebral ischemia diagnosing kit with specifically immunized human tissue kallikreinase or human tissue kallikreinase segment is prepared therewith, and may be used in fast estimation of the danger / benefit ratio of operating dredging of carotid, etc.

The Chinese medicine for curing sequelae of angiocardiopathy and cerebrovascular disease with reliable therapeutic effect without toxic side effect is made up by using 12 Chinese medicinal materials of scorpion, silkworm, earthworm, astragalus root, borneol, codonopsis and others as raw material through a certain preparation process, and its effective rate can be upto above 90%.

The invention relates to a vinegar, in particular to a lucid ganoderma grain vinegar. The vinegar has functions of preventing hyperglycemia, high blood pressure, hyperlipaemia, cardiovascular and cerebrovascular diseases, and the like, can improve the immunological function of bodies, the blood circulation, the cardio-cerebral blood-supply and oxygen-supply abilities as well as the cell and organism physiological function, and has the functions of resisting radiation, smoothing the nerves, relieving shock and detoxicating. The invention has special effect for treating part of diabetes mellitus and high blood pressure.

The invention relates to a neck and brain arterial pulse wave speed measurement system, which is characterized by comprising a signal collection device, a signal processing device, a display device and a communication interface module, wherein the signal collection device is connected with the signal processing device through the communication interface module, the output end of the signal processing device is connected with the display device, the signal collection device is used for synchronously sampling blood flow signals at the tail sections of a common carotid artery and an internal carotid artery and converting the blood flow signals to corresponding digital signals, the signal processing device is used for processing synchronously obtained brain blood flow signals to obtain time difference among the signals, and the display device is used for displaying parameters of the blood flow signals and parameters of the time difference among the signals. The neck and brain arterial pulse wave speed measurement system achieves noninvasive detection on neck-brain arterial pulse wave speed, is accurate and reliable in results and strong in clinical practicality, reflects stiffness conditions of the cerebral artery more accurately and directly, estimates apoplexy risks, and is beneficial to early discovery and precaution of apoplexy.

The invention provides a multifunctional Chinese medicine preparation and a preparation method thereof. The multifunctional Chinese medicine preparation is prepared from a specific quantity of red ginseng, milkvetch roots, glossy privet fruits and the fruit of Chinese magnoliavine. The multifunctional Chinese medicine preparation has multiple effects, various symptoms, caused by pro-senescence, of the old can be effectively relieved, cerebral blood supply can be promoted, and the multifunctional Chinese medicine preparation has a remarkable effect especially on hypomnesis, insomnia, physical agility reduction, dizziness and headaches, skin dryness and hydropenia and the like. The preparation method of the multifunctional Chinese medicine preparation is simple in process, and pasty products and powdery products can be obtained and can be selected to be used according to different symptoms.

A cerebral blood flow rate quantification device includes: a nuclear medicine image acquisition unit for acquiring a nuclear medicine image of the head of a subject administered with a radiopharmaceutical; a count calculation unit for calculating the number of counts obtained from a unit region; a cerebral blood flow rate calculation unit for calculating the value of a cerebral blood flow rate that makes the value of a function, which expresses the concentration of the radiopharmaceutical in brain tissue; and a cerebral blood flow map generation unit for generating a map showing cerebral blood flow based on the cerebral blood flow rate in each unit region. Consequently, the cerebral blood flow rate can be accurately quantified even at a relatively early stage after administration of a radiopharmaceutical.

The embodiment of the invention discloses a multi-modal information guided bypass blood vessel determination method and system for intracranial and extracranial blood flow reconstruction. The method comprises the steps of obtaining a thin-layer magnetic resonance image of the brain of a patient; Obtaining a skull structure model of the brain of the patient; Obtaining a whole-brain angiography image of the brain of the patient to obtain blood vessel structure information of the brain of the patient; Obtaining cerebral blood perfusion and metabolism images of the brain of the patient to obtain metabolism and perfusion level information of the brain of the patient; Obtaining a whole brain neuron electrical activity energy spectrum and a function connection topographic map of the patient to obtain neuron activity level information of the brain of the patient; Fusing the skull structure model, the vascular structure information, the cerebral blood perfusion and metabolism information and the neuron activity level information to obtain a multi-modal stereo image of the brain of the patient; And according to the three-dimensional image, determining an operation area of the brain hemisphere of the patient, and determining an alternative bypass blood vessel. By adopting the method provided by the invention, the selection precision and reasonability of the alternative bypass blood vessels can be improved.

A biofunctional additive of food or forage for improving immunity, circulation and CBF and preventing and treating diseases is prepared from 13 Chinese-medicinal materials including wild jujube, royal jelly, ginseng, cordyceps, etc through mixing with alcohol; reflux extracting, concentrating, drying and grinding by 200 meshes.

CPU 12 reads out the bloodstream associated values of target voxel of subject's standardized brain bloodstream images (step S34). CPU 12 sorts the bloodstream associated values in descending order (step S35). CPU 12 rejects bloodstream associated values that are ranked top 10% and bottom 40% (step S36). When the subjects are 20 for example, bloodstream associated values of highest 2 subjects and of lowest 8 subjects are rejected. CPU 12 calculates and stores mean value and standard deviation of remaining bloodstream associated values after the rejection (step S37). CPU 12 calculates mean value and standard deviation of bloodstream associated values for each voxel as target voxel (steps S31, S32, S33 and S38). Then, the alternative normal brain database of brain bloodstream image is obtained.

The present invention relates to the use of tropane derivatives having dopamine reuptake inhibitor activity for the treatment of diseases associated with reduced blood flow to the brain or with instances of a temporary break in blood supply to the brain, such as ischemic diseases.

The invention discloses the pineapple anhydride compound and its use, wherein the pineapple anhydride compound is extracted from pineapple leaves, which has proved functions of oxidation resistance and enhancing brain blood flow, thus can be used for treating apoplexy and grease metabolic disorder.

The invention relates to application of a medicine taking alpha-asarone as a unique pharmacological active component in treatment of cerebral arterial thrombosis. The medicine provided by the invention can be used for effectively treating cerebral arterial thrombosis and has no obvious toxic or side effect. The medicine can obviously increase the blood flow ratio of the infarct side half brain to the opposite side half brain of a middle cerebral artery occlusion ischemia reperfusion rat and reduce the cerebral infarction volume; the nerve function score is obviously improved, and the lifetime of the model rat is prolonged; the occurrence rate of epilepsy caused by cerebral arterial thrombosis is obviously reduced.