20 results about "Keratitis" patented technology

The invention belongs to the technical field of microorganisms, and particularly relates to bifidobacterium animalis for relieving eye allergy and application of the bifidobacterium animalis. The invention provides an application of bifidobacterium animalis subsp. Lactis in preparation of a product for relieving eye allergy, the bifidobacterium animalis subsp. Lactis is Def +, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.35798. The Bifidobacterium animalis subsp. Lactis Def < + > provided by the invention can relieve the eye itching symptom, relieve red and swollen eyelids, reduce conjunctiva and cornea injury, relieve eye discomfort, relieve globular conjunctivitis cell infiltration, improve corneal epithelium thickening lesion, improve the anti-inflammatory ability and improve allergic conjunctivitis, keratitis and blepharitis marginata in a targeted manner. The eye drops are high in safety and resistant to gastrointestinal fluid, and a safe and long-acting scheme is provided for eye allergic diseases.

The application discloses an ophthalmic disease image classification system based on a big data model, which comprises a data set construction module, an image segmentation module and a model training module.The data set construction module is used for collecting eye images of patients with different ophthalmic diseases in an ophthalmic clinic and performing image marking processing to construct training and test data sets.The image segmentation module adopts YOLOv7 to perform image segmentation on the images taken by the smart phone to obtain eye images containing only the part below the eyebrows and above the zygomatic arch.The model training module adopts a five-fold cross-validation method to train the model on the images, and applies data enhancement technology, white balance adjustment and a transfer learning algorithm.The application relates to the technical field of ophthalmic disease image classification.The ophthalmic disease image classification system based on the big data model has high classification accuracy for diseases such as cataracts, keratitis and pterygium in the development stage test set and different clinical evaluation stages.

This invention discloses the application of ferrous ions in the preparation of products for treating bacterial infections, belonging to the field of pharmaceutical technology. Antibacterial activity tests of ferrous ions against Staphylococcus aureus showed strong bactericidal effects, with a survival rate of less than 0.001% against Staphylococcus aureus and less than 0.01% against methicillin-resistant Staphylococcus aureus (MRSA). The use of ferrous ion-containing hydrogels in the treatment of keratitis and skin wound infections significantly reduced the risk of MRSA infection in the lungs and effectively prevented the proliferation and spread of microorganisms in the body, revealing that drugs containing ferrous compounds can be used to treat Staphylococcus aureus infections, including MRSA.

This invention belongs to the field of molecular diagnostics, specifically relating to biomarkers for the diagnosis of herpes simplex keratitis (HSK) and their applications. This invention is the first to demonstrate that C1QA and FCERT1G are specific and reliable inflammation-related biomarkers for HSK. Diagnostic and assessment methods based on these biomarkers can provide crucial molecular evidence for the early detection, accurate diagnosis, objective severity grading, and personalized treatment of HSK. Simultaneously, this invention reveals the potential roles of FCERT1G and C1QA in HSK and provides new ideas for targeted therapy of this disease, particularly the application of goserelin as an inflammation modulator, offering a new direction for HSK treatment.

The present disclosure provides an ophthalmic formulation comprising: one or more pharmaceutically acceptable excipients; a pharmaceutically active compound capable of reducing the amount or deleterious effects of autoantibodies on the ocular surface, such as IgG; in particular, the present disclosure provides an ophthalmic formulation wherein the pharmaceutically active compound is capable of treating a clinical condition selected from the group consisting of inflammatory, infectious and immunological ocular surface or intraocular diseases that can cause symptoms of ocular discomfort, keratitis, dry eye disease, formation of symblepharon, shortening of the anterior chamber depth, lid margin / conjunctival keratinization, subconjunctival fibrosis, retinal gliosis and glaucoma.

The invention belongs to the technical field of medical instruments, and particularly discloses a keratitis tear detection kit which comprises a shell, the shell is of a cylindrical structure with an opening in the lower end, through grooves are symmetrically formed in the outer wall of the shell, a center shaft is slidably arranged at the center of the upper end of the shell in a penetrating mode, and a downward-pressing pushing assembly is arranged on the lower wall of the center shaft and the lower wall of the shell. The upper end of the center shaft and the upper wall of the shell are provided with pressing assemblies, the through groove of the shell is provided with an eyelid opening assembly, the lower end of the center shaft and the lower portion of the inner wall of the shell are provided with an eye anastomosis mechanism, the eye anastomosis mechanism comprises an anastomosis linkage assembly, an eye anastomosis head and detection test paper, and the eye anastomosis head is arranged at the lower end of the center shaft. The anastomosis linkage assembly is arranged on the inner wall of the eye anastomosis head and the inner wall of the shell, and the detection test paper is installed on the eye anastomosis head. By pressing the pressing head downwards, the upper eyelids and the lower eyelids of a patient can be kept in an open state, meanwhile, the detection test paper is matched with the eyeballs of the patient in shape, and collection and detection of tears are better completed.

This invention provides a contact lens lubricant containing lysozyme and recombinant collagen, its preparation method, and its application, belonging to the technical field of eye care products. The contact lens lubricant provided by this invention comprises the following components: 0.01%–0.5% lysozyme, 0.1%–2.0% recombinant collagen, 0.5%–1.2% osmotic pressure regulator, 0.01%–0.1% viscosity regulator, and 0.1%–2.0% pH buffer. This invention uses lysozyme and recombinant collagen as the core active ingredients; their synergistic effect provides antibacterial, moisturizing, corneal repair, and improved wearing comfort functions. This invention also provides a method for preparing the above-mentioned contact lens lubricant and its application in the preparation of products for relieving dry eye syndrome and preventing contact lens-related keratitis.

The application relates to the field of ophthalmic drugs, and particularly discloses an eye drop, which comprises the following components in mass fraction: 0.003%-0.2% of chlorhexidine gluconate; and 0.025%-0.05% of chloramphenicol. Since acanthamoeba usually feeds on bacteria, the chlorhexidine gluconate is used as a main component to kill acanthamoeba in the application, and the antibiotic chloramphenicol is added, so that the keratitis caused by bacterial infection can be avoided, the ocular surface bacteria can be killed, the nutrition source of acanthamoeba can be reduced, and the treatment of acanthamoeba keratitis can be synergistically strengthened.

The present invention relates to a stable formulation based on polyhexamethylene biguanide (PHMB) suitable for ocular level administration, a process for its preparation and a relative dosage regimen effective in the treatment of Acanthamoeba keratitis and in particular in the eradication of cysts.

The invention discloses a construction method and system of a herpes simplex keratitis infection model. The method comprises the following steps: fixing a mouse in a mild anesthesia state and enabling eyeballs of the mouse to protrude as much as possible, sucking an HSV-1 virus suspension by using a microsyringe, obliquely inserting a needle from the cornea edge close to the sclera, keeping the inclined surface of the needle upward, slowly penetrating through the cornea epithelium to enter a target position of a matrix layer, and finally obtaining the HSV-1 virus suspension. The needle head is tightly attached to the cornea plane in the injection process; after injection is completed, the needle is slowly withdrawn; in the needle inserting and withdrawing processes, real-time observation is carried out through a stereoscopic microscope to ensure that the needle tip is kept away from the crystalline lens. According to the method, the stable and reliable HSK model can be established under the low virus titer (1 * 10 < 5 > PFU), meanwhile, experimental interference caused by mechanical damage is avoided, the specificity and repeatability of the model are improved, and a higher-quality experimental platform is provided for HSK pathogenesis research and drug screening.

The invention relates to the technical field of keratitis detection systems, in particular to a detection system for rapidly diagnosing keratitis. The invention provides a detection system for rapidly diagnosing keratitis, which comprises a kit and an excitation light source, the kit comprises three independently packaged reagent single tubes; the three reagent single tubes comprise a first reagent single tube, a second reagent single tube and a third reagent single tube which are arranged in sequence according to a medication sequence; a reagent in the third reagent single tube comprises 6PD-DPAN; reagents in the first reagent single tube and the second reagent single tube are independently DO-DPAS or M1-DPAN, and the reagents in the first reagent single tube and the second reagent single tube are different; and the lambda ex of the excitation light source is equal to 200 to 420 nm. The detection system can simply, conveniently, quickly and accurately detect the infection type of keratitis.

The present disclosure provides an ophthalmic formulation comprising one or more pharmaceutically acceptable excipients; a pharmaceutically active compound that is capable of reducing the amount or deleterious actions of autoantibodies on the ocular surface, such as IgG; In particular, the present disclosure provides an ophthalmic formulation where the pharmaceutically active compound is capable of treating a clinical condition selected from the group consisting of inflammatory, infectious and immunological ocular surface or intraocular disease that can cause symptoms of ocular discomfort, keratitis, dry eye disease, symblepheron formation, fornix foreshortening, eyelid margin / conjunctival keratinization, subconjunctival fibrosis, retinal gliosis and glaucoma.

The invention discloses an AI-based eye postoperative nursing method and system, and relates to the technical field of intelligent medical treatment, and the method comprises the steps: obtaining eye postoperative image data of a patient; analyzing an oculentum covering state of the ocular surface by using an artificial intelligence model and identifying an oculentum loss position; according to the loss position of the oculentum, the multi-point oculentum supplementing mechanism is automatically controlled to carry out accurate dispensing; according to the eyelash density, the trichiasis condition and the eyelid shape of a patient, the opening and closing states of the air holes are automatically adjusted, and sodium hyaluronate atomization is started for moisturizing; a patient is supported to preset a moisturizing mode, and a moisturizing enhancement program matched with the current eye environment is automatically executed when it is recognized that the oculentum is lost. Eye ointment loss is accurately recognized through near-infrared imaging and AI segmentation, supplementary application is conducted according to needs, the moisturizing environment is dynamically adjusted in combination with individualized anatomical characteristics, the liquid medicine deposition efficiency is remarkably improved, and dissipation is reduced; and a preset mode and a time-limited enhanced reinspection mechanism are combined, so that the exposure keratitis risk is remarkably reduced.

The invention provides a composition containing neural stem cells, which comprises the following components in parts by mass: 30-50 parts of neural stem cell suspension, each milliliter of which contains 1.5 * 10 < 6 > to 4.5 * 10 < 6 > neural stem cells; 5 to 10 parts by mass of trehalose-citrate derivative freeze-dried powder; 8-15 parts by mass of a carboxymethyl chemical fibronectin fragment buffer solution; 10-20 parts by mass of a hyaluronic acid-dopamine copolymer aqueous solution; and 0.5-1 part by mass of corneal nerve repairing polypeptide. All the components in the composition disclosed by the invention construct a bionic microenvironment through a synergistic effect. The pH adjusting function of the trehalose-citrate derivative, the physical barrier effect of the hyaluronic acid-dopamine copolymer and the biological guiding function of the carboxymethyl chemical fibronectin fragment jointly maintain the active state of the neural stem cells, and the survival rate and function expression of the neural stem cells in the corneal nerve repairing process are improved.

The application discloses an ophthalmic disease image classification system based on a big data model, which comprises a data set construction module, an image segmentation module and a model training module.The data set construction module is used for collecting eye images of patients with different ophthalmic diseases in an ophthalmic clinic and performing image marking processing to construct training and test data sets.The image segmentation module adopts YOLOv7 to perform image segmentation on the images taken by the smart phone to obtain eye images containing only the part below the eyebrows and above the zygomatic arch.The model training module adopts a five-fold cross-validation method to train the model on the images, and applies data enhancement technology, white balance adjustment and a transfer learning algorithm.The application relates to the technical field of ophthalmic disease image classification.The ophthalmic disease image classification system based on the big data model has high classification accuracy for diseases such as cataracts, keratitis and pterygium in the development stage test set and different clinical evaluation stages.

The invention relates to the technical field of biomedical engineering and drug delivery systems, in particular to an ROS-responsive hydrogel eye drop preparation, a preparation method thereof and application of the ROS-responsive hydrogel eye drop preparation in treatment of corneal diseases. Aiming at the problems of short ocular surface residence time, low bioavailability and the like of an existing eye drop preparation, glycyrrhizic acid is added on the basis of polyvinyl alcohol to jointly serve as a skeleton of ROS response type hydrogel TPG, and the obtained hydrogel eye drops have injectability, shear thinning characteristic and thixotropy, are suitable for being used as eye drops and have good application prospects. The composition can effectively prolong the retention time of the ocular surface, and can regulate the keratitis immune microenvironment by inhibiting the amplification process of neutrophil inflammation related to HMGB1 (High Mobility Group Box 1).

The application discloses an eye drug delivery hydrogel system based on dynamic chemical cross-linking and a preparation method and application thereof. The preparation is simple, has excellent self-healing, injectable, adhesive and sustained-release characteristics, can significantly improve the bioavailability of eye drugs, and has a wide application prospect in the treatment of eye diseases such as dry eye, glaucoma and keratitis.

The invention relates to application of a TWEAK-TWEAKR signal channel as a target spot in preparation of a medicine for treating corneal injury, and belongs to the technical field of biology. According to the invention, a TWEAK-TWEAKR signal channel is utilized, and in corneal injury, the blocking drug of the signal channel is adopted to block the TWEAK-TWEAKR signal channel, so that abnormal expression of related genes after corneal injury can be inhibited, corneal inflammatory response and corneal neovascularization can be inhibited, and corneal injury can be effectively treated.

The invention discloses an application of terpinen-4-ol in preparation of a medicine for treating fusarium solani keratitis. The active ingredients of the medicine are composed of terpinen-4-ol and natamycin. The terpinen-4-ol can inhibit spore germination and mycelial growth of the fusarium solani, and can effectively inhibit the activity of the fusarium solani under the contact condition of 1-10 minutes. The combined use of the terpinen-4-ol and the natamycin has additive bacteriostatic activity, and the terpinen-4-ol can effectively enhance the bacteriostatic activity of the natamycin to fusarium solani under the condition of short-time treatment. The invention provides an alternative medicine and a new medication scheme for the treatment of fusarium solani keratitis.

The utility model relates to the field of eye medical instrument especially, and it is an auxiliary device of eye slit closing, including wearing frame, exciting component, detection component and power component. Wearing frame adopts ergonomics design, ensures that the device can be stably fixed on the head of user, even under long -time wearing also can keep comfortable. Exciting component through accurate positioning, direct action is in the eye muscle of functional abnormality, through non -invasive way stimulation its contraction, thereby effectively promotes the closing of eye slit. Detection component is responsible for real -time monitoring normal eye slit state, adjusts the working mode of exciting component, ensures that the abnormal eye palpebral fissure closes and keeps synchronization with healthy side. Exciting component is used for with proper voltage current stimulation eye muscle, to simulate the closing action of normal eye lid, effectively prevents exposure keratitis and other eye complications, all -round protection eye health.