Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

93 results about "Cerebral Tumor" patented technology

Preparation method and application of targeted co-supported drug delivery system nano-particles based on polylactic-co-glycolic acid

The invention relates to a preparation method and application of targeted co-supported drug delivery system nano-particles based on polylactic-co-glycolic acid (PLGA), which can effectively solve the problem of preparing the targeted co-supported drug delivery system nano-particles based on polylactic-co-glycolic acid, and realizes the application in cerebral tumor targeted treatment medicines. The method comprises the following steps: connecting Angiopep-2 by utilizing the reactive amino group on chitosan: reacting chitosan with 3-maleimidopropionic acid N-hydroxysuccinimide to enable the amino terminal of chitosan to have maleimide; reacting with terminal-sulfhydrylated Angiopepe-2 to obtain a chitosan-angiopep-2 polymer. The polymer can be applied to preparation of a PLGA-based targeted co-supported drug delivery system. The method is stable and reliable, the product has a good using effect, small-molecular chemical drugs and genetic drugs can be delivered at the same time, or a fluorescent probe can pass through a blood brain barrier and enters the brain while chemotherapeutic drugs are delivered, and targeted cerebral tumor treatment can be synergized or targeted cerebral tumor treatment and diagnosis can be integrated into a whole.
Owner:ZHENGZHOU UNIV

Injection of mannite and glycerol and preparation method thereof

The invention discloses injection of mannite and glycerol, which contains mannite, glycerol and water for injection. Furthermore, the invention also discloses a method for preparing the injection, which comprises the following steps: taking the mannite and the glycerol, dissolving into the water for injection, filtering and filling. The injection of the mannite and the glycerol is clinically used for treating cerebrovascular diseases, brain trauma, cerebral tumors, intracranial inflammation and the diseases of acute and chronic intracranial hypertension, hydrocephalus and the like caused by other reasons. The injection of the mannite and the glycerol has the functions of lowering the intracranial pressure quickly and eliminating the hydrocephalus and can also avoid death because of acute renal failure caused by the injury of the kidney; the injection of the mannite and the glycerol suppresses the apoptosis of neural cells and achieves the function of protecting the brain; the function of lowering the intracranial pressure is stable and has long retention time; crystals occurring because of the change of the air temperature or in the processes of storage and transportation are eliminated; and the glycerol is used as a caloric agent and can improve and recover the energy metabolism of the important viscera of the heart, the brain, the kidney and the like during oxygen deficiency. The injection of the mannite and the glycerol is a very effective, stable and safe medicine for promoting urination and removing water clinically.
Owner:北京圣方达隆医药科技发展有限责任公司 +2

Full-connection CRF cascaded FCN and K mean value brain tumor segmentation algorithm

The invention relates to a brain tumor segmentation algorithm based on combination of deep learning and a traditional segmentation algorithm, in particular to a full-connection CRF cascaded FCN and Kmean value brain tumor segmentation algorithm. The DenseCRF matches all the pixels in the original image with each pixel in the segmentation result of the FCN algorithm, finds the pixels with the sameattribute, supplementarily smoothes the input, improves the detail information of the segmentation result, and improves the segmentation precision. Meanwhile, in different segmentation algorithms, the segmentation standards are different, and the segmentation results obtained based on the algorithms of the different segmentation standards are complementary to each other by fusing the deep learning algorithm FCN with the different segmentation standards and the traditional segmentation algorithm K-means clustering, so that the segmentation results are closer to real segmentation images. Therefore, the brain tumor nuclear magnetic resonance image is segmented more accurately, and a more accurate tumor image is provided for high-precision repetitive measurement and evaluation of the brain tumor nuclear magnetic resonance image.
Owner:CHANGCHUN UNIV OF TECH

Nanometer drug delivery system targeted for brain tumors and tumor stem cells thereof and preparation and application of nanometer drug delivery system

The invention discloses a nanometer drug delivery system targeted for brain tumors and tumor stem cells thereof. The nanometer drug delivery system comprises tumor treatment drugs, a carrier frameworkand targeting molecules combined to the surface of the carrier framework, wherein the carrier framework is a cationic liposome; the targeting molecules at least comprise a first targeting molecule and a second targeting molecule, the first targeting molecule is surface modification polypeptide, and the second targeting molecule is an aptamer; and the tumor treatment drugs are selected from chemotherapy drugs and / or gene targeting drugs. The invention discloses a preparation method and application of the nanometer drug delivery carrier. The nanometer drug delivery carrier can carry and load target genes or chemotherapy drugs for cerebral tumor treatment, and through dimolecular modification, the targeting efficiency of the system is improved to 67% or above from 5% which is obtained underthe condition that modification is not performed.
Owner:SHANGHAI TONGREN HOSPITAL

Cascaded U-N Net brain tumor segmentation method combined with wavelet transform

The invention discloses a cascaded UN Net brain tumor segmentation method combined with wavelet transform. The method comprises the following steps: S1, preprocessing an input image sequence; wherein the image sequence comprises four modal data FLAIR, T2, T1 and T1C and annotation data; s2, establishing a first layer of a cascaded network by using a Pytch deep learning framework, training a UNet model combined with wavelet transform, and then multiplying a training result of the model by the modal data T1 and T1C to generate a coarse segmentation image; and S3, establishing a second layer of the cascaded network by using a Pytch deep learning framework, training the NNet model combined with wavelet transform, and generating a fine segmentation image, namely a final brain tumor segmentation result. According to the method, the segmentation efficiency can be improved, and the problems of fuzzy tumor boundary, low segmentation precision and the like in brain tumor MRI segmentation can be solved.
Owner:GUANGDONG UNIV OF TECH

MRI (Magnetic Resonance Imaging) image segmentation method based on fuzzy thought and level set frame

ActiveCN106127734AOvercoming the phenomenon of difficulty in part segmentation convergenceAccurate target outlineImage enhancementImage analysisNMR - Nuclear magnetic resonanceCancer cell
The invention discloses a MRI (Magnetic Resonance Imaging) image segmentation method based on fuzzy thought and a level set frame, and mainly solves the problem of segmentation errors and low calculation speed generated since an original segmentation method can not overcome an intensity non-uniformity phenomenon or noise interference in the MRI process that the nuclear magnetic resonance image is segmented. The method comprises the following implementation steps: 1) inputting an original nuclear magnetic resonance image; 2) carrying out iterative computation on a magnetic resonance image matrix to solve a membership matrix u corresponding to a magnetic resonance image matrix I; 3) regulating an evolution propulsive parameter, and guaranteeing that the membership matrix u is subjected to exact convergence on a target outline; and 4) representing different areas in the image matrix I with different element values of the membership matrix u to obtain an anticipatory segmentation result. By use of the method, the segmentation process of the nuclear magnetic resonance image can be effectively and quickly finished, an accurate target area can be obtained, and the method can be used for cerebral tumor detection and cancer cell examination in a MRI medical image.
Owner:XIDIAN UNIV

Chinese medicine for treating brain tumor

The invention belongs to the field of traditional Chinese medicine for treating tumor and provides a traditional Chinese medicine for treating brain tumor, which aims to achieve good and quick efficacies. The traditional Chinese medicine for treating brain tumor is prepared by the materials such as windpipe trachea, holly root, blackberry lily, glossy ganoderma, angelica, alga, kombu, scolopendra, frankincense, myrrh, borneol, root of pseudo-ginseng, Tianxiong, rehmannia root, herb of yerbadetajo, radix adenophorae and mulberry leaf. The traditional Chinese medicine has efficacies of supporting healthy energy, consolidating constitution, benefiting vital energy, nourishing the blood, promoting blood circulation by dissipate blood stasis, clearing away heat-evil and expelling superficial evils, and has the advantages of obvious and quick efficacies.
Owner:BEIJING LVYUAN QIUZHENG SCI & TECH DEV

In-situ inoculating operation method for cerebral tumor tissue block animal and inoculating needle thereof

The invention discloses an in-situ inoculating operation method for a cerebral tumor tissue block animal. The method comprises the following steps: (a) taking a cerebral tumor tissue, and shearing the cerebral tumor tissue into tumor tissue particles; (b) placing the tumor tissue particles into a needle tube of a tissue block injection needle, and carrying out quantifiable indwelling control on the tumor tissue particles; (c) anaesthetizing the animal, dissecting the skin on the surface of the animal skull, and boring a hole on the animal cranial bone; (d) inserting the tissue block injection needle along a cranial bone hole, and slowly injecting the tumor tissue particles; and (e) slowly pulling out the needle, sealing the cranial bone hole by bone wax, and suturing the scalp. The method can ensure the original tissue structural property of an inoculated tumor tissue, provides a tumor model with high simulation degree for tumor research, can ensure the vitality of inoculated cells, has high tumor transplantation success rate, can realize quantification of cell number in the inoculated tumor tissue and positioning of inoculation in the tumor tissue animal brain, has short operation time, and can meet the requirement of needing large amount of animal models in once experiment.
Owner:THE SECOND HOSPITAL AFFILIATED TO SUZHOU UNIV

Brain tumor medical image three-dimensional reconstruction display interaction method and system

The invention belongs to the technical field of brain tumor medical image three-dimensional reconstruction, and discloses a brain tumor medical image three-dimensional reconstruction display interaction method and system. The brain tumor medical image three-dimensional reconstruction display interaction system is provided with an image acquisition module, an image correction module, an image extraction module, a central control module, an image processing module, a three-dimensional modeling module, a brain tumor diagnosis module, an analysis module, a scheme generation module, a planning module, an operation interaction module, an image storage module and a display module. The brain tumor medical image three-dimensional reconstruction display interaction method comprises the steps: collecting and correcting a brain tumor image; constructing a brain tumor region three-dimensional model; the brain tumor is diagnosed, and analyzing the three-dimensional model; generating a brain tumor excision scheme, and planning brain tumor excision operation; and executing operations. According to the invention, the three-dimensional model is constructed, the brain tumor operation is simulated through human-computer interaction, a basis is provided for a real operation, and the operation risk is reduced.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV

Betulinic acid analogue and preparation method and application thereof

The invention relates to the field of antineoplastic medicines and provides a betulinic acid analogue with the structure shown in figure (1) or solvate thereof. The definition of R1, R2, X and n is inThe invention relates to the field of antineoplastic medicines and provides a betulinic acid analogue with the structure shown in figure (1) or solvate thereof. The definition of R1, R2, X and n is inthe specification. The invention also provides the a preparation method of the betulinic acid analogue with the structure shown in figure (1) or the solvate thereof, and the applications of pharmaceu the specification. The invention also provides the a preparation method of the betulinic acid analogue with the structure shown in figure (1) or the solvate thereof, and the applications of pharmaceutical compositions containing the betulinic acid analogue or the solvate thereof and medicines using the betulinic acid analogue or the solvate thereof as the effective constituent for preparing antintical compositions containing the betulinic acid analogue or the solvate thereof and medicines using the betulinic acid analogue or the solvate thereof as the effective constituent for preparing antineoplastic medicines for treating pulmonary cancer, prostatic cancer, colon cancer, leukemia, mammary cancer, liver cancer, gastric cancer, pancreatic cancer, malignant neuroglioma, cerebral tumor, andeoplastic medicines for treating pulmonary cancer, prostatic cancer, colon cancer, leukemia, mammary cancer, liver cancer, gastric cancer, pancreatic cancer, malignant neuroglioma, cerebral tumor, andthe like. the like.
Owner:TIANJIN HANKANG PHARMA BIOTECH

Nasal cavity administrated prepn for treating cerebral tumor

The present invention relates to one kind of nasal cavity administrated preparation of methotrexate to target to brain. The present invention is suitable for preventing and treating primary and metastatic cerebral tumor, meningeal leukaemia, cerebral infiltration of leukaemia, etc. The preparation contains methotrexate or its medicinal acceptable salt as well as pharmacological acceptable supplementary material. After being administrated, the medicine reaches brain fast and is enriched in brain to produce high disease preventing and treating effect while the medicine density in blood and other tissues is reduced to decrease general side effect, the preparation has also the advantages of fast release and less nasal cilium toxicity.
Owner:FUDAN UNIV

Direct brain administration of chemotherapeutics to the CSF for patients with primary and secondary brain tumors

InactiveUS20200163956A1Further toleranceDiminish cases of aseptic ventriculitisOrganic active ingredientsPharmaceutical delivery mechanismPharmaceutical formulationChemo therapy
In some embodiments, a method may include treating brain cancer sensitive to cytotoxic effect. The method may include intraventricularly administering to a subject via a subject's cerebrospinal fluid an effective amount of a pharmaceutical formulation. The pharmaceutical formulation may include at least one chemical compound. In some embodiments, the pharmaceutical formulation may include at least one aqueous diluent. The at least one chemical compound may include a molecular weight of between about 400 MW and about 10,0000 MW. The at least one chemical compound may include protein binding of greater than 30% and greater than 70 Angstroms in cross sectional area. In some embodiments, the at least one chemical compound includes Irinotecan, SN-38, and / or a related derivative thereof. In some embodiments, the method may include ameliorating and / or inhibiting brain cancer in the subject using the pharmaceutical formulation.
Owner:CEREBRAL THERAPEUTICS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products