782 results about "Cerebral blood vessel" patented technology

The present invention relates to a method of prevention and treatment of narrowing of cerebral blood vessels after subarachnoid hemorrhage, and in particular, to a method of applying electrical energy through electrical stimulation electrodes particularly positioned in the cervical region of a patient to affect the sympathetic tone of the blood vessels supplying the brain.

The invention discloses a gradual cardiovascular interventional operation robot. The robot comprises a guide wire propulsion module, a balloon catheter propulsion module and a contrast agent injectionmodule, wherein the guide wire propulsion module comprises a guide wire pushing mechanism and a guide wire rotating mechanism, the guide wire pushing mechanism is used for achieving the pushing of aguide wire during a vascular interventional operation, and the guide wire rotating mechanism is used for achieving the rotation of the guide wire during the vascular interventional operation; the balloon catheter propulsion module is used for achieving the pushing of a balloon catheter during the vascular interventional operation, and the contrast agent injection module is used for achieving the injection of a contrast agent during the vascular interventional operation. The gradual cardiovascular interventional operation robot has the advantages that the pushing and rotation of the guide wire,the pushing of the balloon catheter and the injection of the contrast agent can be achieved during the vascular interventional operation, and the guide wire rotating mechanism provides a real-time force feedback function.

A curcumin medicine for preventing and treating cancer and cardiovascular and cerebrovascular disease includes a pre-concentrated curcumin liquid in the form of softgel and prepared from the precursor of curcumin and emulsifier and a fatty curcumin emulsion prepared from the precursor of curcumin, emulsifier, antioxidant, isotonic regulator, stabilizer, pH regulator, and the water for injection. It can also provide energy to the patient.

A Chinese medicine in the form of tablet, capsule, particle, or oral liquid for treating cardiovascular and cerebrovascular diseases is prepared from 16 Chinese-medicinal materials including Chuan-xiong rhizome, Chinese angelica root, red peony root, astragalus root, etc. Its preparing process is also disclosed.

Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.

The invention discloses an intravascular stent of a composite structure; the intravascular stent comprises a stent main body, wherein the distal end of the stent is restrained as an adducted form by virtue of a tightening wire, and the tightening wire is degradable magnesium alloy or degradable iron alloy; one or more auxiliary wires are woven on the stent main body; when the stent is applied to blood vessel of brain, the auxiliary wire is pure platinum or alloy thereof, pure gold or alloy thereof, pure tungsten or alloy thereof, or pure tantalum or alloy thereof; and when the stent is applied to peripheral blood vessel, the auxiliary wire is cobalt-chromium alloy or stainless steel or tungsten or tantalum. The stent, when serving as a thrombus removal system for treating cerebral apoplexy, not only can be used for removing thrombus effectively for several times but also can be used for catching small thrombus flowing to distal end so as to prevent distal blood vessels from getting blocked; and the stent can be used for dilating stenosis or blocked brain blood vessel or peripheral blood vessel, so as to take an effect of dredging and reconstructing a blood flow. The stent can be repositioned and released, with high controllability; and the stent can be used for reducing operation difficulty and greatly improving an operation success rate.

The present invention relates to one kind of plant leavening prepared by using plant with hot and fragrant smell of propylene sulfide, yeast and lactobacillus and through fermentation. The present invention also relates to the preparation process of the leavening and its application is treating presbyopia, cataract and other diseases, promoting blood circulation; improving the functions of sexual organs, kidney, cardiac and cerebral vascular system, digestive system, etc.; resisting oxidation, senility and fatigue; lowering blood fat, blood sugar and blood pressure; etc.

This invention measures cerebral blood volume changes to evaluate, from properties of low-frequency components of such changes and heart rate changes calculated by analysis, a distribution of cerebral blood vessel hardness and its with-time change to thereby estimate and display diseased and dangerous portions based on the evaluation. Briefly, the above-noted object is attainable by a biological measurement system having a cerebral blood volume measurement unit which measures a regional cerebral blood volume of a body under test, an analyzer unit that analyzes a signal measured by the cerebral blood volume measurement unit, an extraction unit for extracting, based on an output of the analysis unit, information concerning a regional cerebral blood vessel state of the test body, and a display unit which displays a measurement result of the cerebral blood volume measurement unit, an analysis result of the analyzer unit or an extraction result of the extraction unit.

A compound comprises a donor and an acceptor, wherein at least one donor ( "D" ) and at least one acceptor ( "A" ) may be arranged in an order of D-A; D-A-D; A-D-A; D-D-A-D-D; A-A-D-A-A; D-A-D-A-D; and A-D-A-D-A. The compound may be selected from the group consisting of: MTPE-TP, MTPE-TT, TPE-TPA-TT, PTZ-BT-TPA, NPB-TQ, TPE-TQ-A, MTPE-BTSe, DCDPP-2TPA, DCDPP-2TPA4M, DCDP-2TPA, DCDP-2TPA4M, TTS, ROpen-DTE-TPECM, and RClosed-DTE-TPECM. The compound may be used as a probe and may be functionalized with special targeted groups to image biological species. As non-limiting examples, the compound maybe used in cellular cytoplasms or tissue imaging, blood vessel imaging, in vivo fluorescence imaging, brain vascular imaging, sentinel lymph node mapping, and tumor imaging, and the compound may be used as a photoacoustic agent.

Embolectomy catheters, rapid exchange microcatheters, systems and methods for removing clots or other obstructive material (e.g., thrombus, thromboemboli, embolic fragments of atherosclerotic plaque, foreign objects, etc.) from blood vessels. This invention is particularly useable for percuatneous removal of thromboemboli or other obstructive matter from small blood vessels of the brain, during an evolving stroke or period of cerebral ischemia. In some embodiments, the embolectomy catheters of this invention are advanceable with or over a guidewire (GW) which has been pre-inserted through or around the clot. Also, in some embodiments, the embolectomy catheters include clot removal devices which are deployable from the catheter after the catheter has been advanced at least partially through the clot. The clot removal device may include a deployable wire nest that is designed to prevent a blood clot from passing therethrough. The delivery catheter may include telescoping inner and outer tubes, with the clot removal device being radially constrained by the outer tube. Retraction of the outer tube removes the constraint on the clot removal device and permits it to expand to its deployed configuration. An infusion guidewire is particularly useful in conjunction with the embolectomy catheter, and permits infusion of medicants or visualization fluids distal to the clot.

The present invention discloses a traditional Chinese medicine preparation for cardio-cerebral blood vessel diseases, it is prepared through extracting danshen and Notoginseng by lye, precipitating with alcohol, concentrating, and adding other medicine and excipients. Then using the HAPLY-MS and HAPLY fingerprint Atlas to characterize its Physicochemical properties completely. Using the fingerprint Atlas analysis method of the present invention, the structure and comparative content of biologically active component can be known. Characterization of the physical chemical properties of danshen and Notoginseng of traditional Chinese medicine preparation with this way is better than other methods of the prior art.

The invention belongs to the technical field of medical image processing and discloses a blood vessel image segmentation method based on centerline extraction and a nuclear magnetic resonance imagingsystem. The method comprises steps of: preprocessing cerebral blood vessel data based on the vesselness filtering of a Hessian matrix; extracting a blood vessel centerline by using a topology refinement method; extracting the features of training samples and test samples by using centerline points as positive samples and non-blood vessel points as negative sample points; by using the feature of the training samples and a corresponding tag training SVM model, using the features of the test samples as the inputs of a trained SVM model and using an output tag as the segmentation method of the blood vessel. The blood vessel image segmentation method reduces workload, improves computational efficiency, requires no manual target calibration or background, fully automatically segments the blood vessel, and greatly improves segmentation efficiency. The blood vessel image segmentation method segments cerebral blood vessels accurately and rapidly without human intervention and can achieve a truepositive rate and a true negative rate as high as 0.85.

The invention discloses an application of sichuan lovage rhizome oil by supercritical CO2 extraction method in pharmacy, which can be used for treating vascular nerve cephalalgia, cerebral thrombus, cerebrovascular angiosclerosis, coronary heart diseases, angina pectoris, hypertension, or asomnia, or common cold, or women's dysmenorrheal.

The present invention relates to a compound medicine for preventing and curing angiocardiopathy and cerebrovascular disease, belonging to the field of chemical medicine. It is characterized by that said compound medicine includes sexual hormones medicine, lipid-reducing medicine, hypotenser, hypoglycemic medicine and anticoagulant medicine. Said compound medicine can be made into various dosage forms. Besides, said compound medicine also can be used for curing the diseases of climacteric syndrome, osteoporosis, endometrial carcinoma, diabetes and metabolic syndrome, etc.

A Chinese medicine in the form of capsule for treating hypertension, hyperlipemia, obesity and climacteric syndrome is prepared from 14 Chinese-medicinal materials including astragalus root, red sage root, tangerine peel, haw, etc. Its preparing process is also disclosed.

The present invention relates generally to systems and methods for assessing blood flow in blood vessels, for assessing vascular health, for conducting clinical trials, for screening therapeutic interventions for adverse effects, and for assessing the effects of risk factors, therapies and substances, including therapeutic substances, on blood vessels, especially cerebral blood vessels, all achieved by measuring various parameters of blood flow in one or more vessels and analyzing the results in a defined matter. The relevant parameters of blood flow include mean flow velocity, systolic acceleration, and pulsatility index. By measuring and analyzing these parameters, one can ascertain the vascular health of a particular vessel, multiple vessels and an individual. Such measurements can also determine whether a substance has an effect, either deleterious or advantageous, on vascular health. In one of many embodiments, the present invention further provides an expert system for achieving the above.

An application of the asiaticic acid derivative in preparing the medicine in the form of capsule, tablet, particle, or injection for preventing and treating cardiovascular and cerebrovascular diseases is disclosed.

The invention relates to the preparation field of alcoholic beverage, in particular to gingko wine preparation with high health care component content, which is produced by taking deserted ginkgo biloba sarcotesta as the raw material, and adopting biological enzyme degrading pectic substance, cellulose, amylum, and other substances, and adopting the processes of wine yeast and natural grape fermentation or off-flavor alcohol infusing after enzyme destruction and defecation. The problems of foreign flavor and toxic component are simultaneously solved. The health care function of the gingko wine is more powerful than that of grape wine, the wine body is unique, the fruit aroma is stronger, the gingko wine is golden-colored and full of nutriments, with pure taste; and the gingko wine has the effects of dilating coronary arteries, enhancing blood flow, inhibiting blood coagulation, activating plasmin system, improving cardiotrophin, promoting cholesterin conversion, maintaining blood vessel elasticity, preventing and treating thromboembolia, coronary heart disease, angina pectoris, cerebral vasospasm and preventing cancer and restraining cancer, and the like. The gingko wine has remarkable economic benefit and social benefit.

The invention provides a pine pollen liquid preparation. The content of water in the liquid preparation is greater than 85% by weight, and the liquid preparation exists in a form of a uniform liquid mixture, such as a solution, a suspension, an emulsion, an emulsion and a colloidal solution, or is a form of an evenly dispersed solid-liquid mixture, the stable mass and quality of functional ingredients and aroma in pine pollen during thermal production, transportation and storage can be guaranteed, in addition, the formula and preparation method of the pine pollen liquid preparation play a good role when pine pollen forms a homogenous and stable system in water media, and the liquid preparation is more easily absorbed and utilized; the invention further provides a preparation method of the pine pollen liquid preparation and applications of the pine pollen liquid preparation in terms of regulating immunity, delaying senescence, protecting heart and cerebral vessels, resisting fatigue, beautifying, regulating gastrointestinal function, and nourishing and preserving health of people with deficiency and weakness or subhealth.