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41results about How to "Reduce eye irritation" patented technology

Tacrolimus ophthalmic preparation and preparation method thereof

ActiveCN107929235AMinimal eye irritationImprove complianceOrganic active ingredientsSenses disorderConjunctival xerosisPatient compliance
The invention provides a tacrolimus ophthalmic preparation and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. According to the present invention, thetacrolimus ophthalmic preparation has a micro-emulsion-like structure, is clarified and transparent, has good patient compliance, is prepared from tacrolimus, oil for injection, a surfactant, a stabilizer, an osmotic pressure regulator, a preservative, a pH value regulator, a tackifier and water for injection, and is used for preventing and treating immunological rejection after corneal transplantation or immunological corneal xerosis and conjunctival xerosis. According to the present invention, with the tacrolimus ophthalmic preparation, the problem of the water insolubilization of tacrolimusis solved, the tacrolimus is firstly prepared into the clarified and transparent eye drops with the micro-emulsion-like structure, the irritation on the eyes by the existing tacrolimus-suspended ophthalmic eye drops can be substantially reduced, and the patient compliance can be improved, such that the tacrolimus ophthalmic preparation of the present invention is suitable for the long-term use byimmunological rejection after corneal transplantation, corneal xerosis and conjunctival xerosis, and other patients with indications.
Owner:SHENYANG XINGQI PHARM CO LTD

Ophthalmic composition and preparation method thereof

The present application discloses a preparation method for an ophthalmic composition. The method includes the following steps: dissolving a high-molecular-weight hyaluronate and a low-molecular-weighthyaluronate in water under heating conditions, adding sodium chloride, performing uniform stirring, adjusting the pH to be alkaline by using an inorganic alkali or salt, performing alcohol precipitation, performing washing, and performing drying to obtain compound hyaluronate powder; dissolving the compound hyaluronate powder in water, and adding zinc hyaluronate, tetrahydropyrimidine or a tetrahydropyrimidine derivative to obtain a mixed solution; and adjusting the pH of the mixed solution, and performing filter sterilization or heat press sterilization to obtain the ophthalmic composition.The present application also provides the ophthalmic composition. The ophthalmic composition provided in the present application contains the compounded sodium hyaluronate, the zinc hyaluronate and the tetrahydropyrimidine, does not contain preservatives, the sodium hyaluronate, the zinc hyaluronate and the tetrahydropyrimidine have synergistic effects, and the composition has the effects of reducing tear evaporation, protecting ocular surface cells, stabilizing tear films, and relieving visual fatigue.
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD

Natamycin-loaded alginic acid gel medicine membrane and a preparation method thereof

The invention relates to the technical field of medical materials, in particular to a natamycin-loaded alginic acid gel medicine membrane and a preparation method thereof. The natamycin-loaded alginic acid gel medicine membrane comprises the following components and contents: every 1mL of the medicine membrane contains 0.01-0.03 g of sodium alginate, 0.0025-0.0075 g of polyoxyethylene and 0.005-0.015 g of natamycin. Alginic acid gel is used as a carrier, natamycin is loaded, and an ethanol solution containing calcium ions is used for crosslinking, so that the spatial structure of the material is more cohesive, the medicine-loaded gel is more stable after membrane formation, the size of pores in a medicine membrane is reduced, membrane release is delayed, and the action time of natamycin is prolonged; alginic acid is good in histocompatibility, and eye irritation and discomfort of natamycin are reduced; the medicine membrane can be better attached to the cornea ulcer surface, and has long medicine action time, good effects, no irritation and discomfort and high acceptability of patients; and the medicine membrane is a novel ophthalmic medicine membrane which is simple in preparation method, low in cost and wide in market prospects.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

Natamycin-grafted oxidized alginic acid fiber membrane and preparation method thereof

The invention relates to the technical field of medical materials, and relates to a natamycin-grafted oxidized alginic acid fiber membrane and a preparation method thereof. The preparation method comprises specific preparation process as follows: preparing oxidized alginic acid fiber: reacting sodium periodate with alginic acid fiber to obtain the oxidized alginic acid fiber; putting the oxidized alginic acid fiber into a glycerol aqueous solution to be soaked, conducting rinsing and drying, and putting the oxidized alginic acid fiber into a dry and sterile centrifugal tube to be stored; and soaking the oxidized alginic acid fiber with a natamycin aqueous solution, oscillating and incubating the oxidized alginic acid fiber at 50 DEG C in a dark place for 36 hours, then washing the oxidized alginic acid fiber twice with an ethanol aqueous solution and deionized water, and drying to obtain the oxidized alginic acid fiber membrane. The surface of the oxidized alginic acid fiber membrane is grafted with natamycin, so that the eye irritation and discomfort caused by the natamycin can be reduced, the half-life period of the medicine is prolonged, the utilization rate of the medicine is increased, and the treatment effect of the fungal keratitis is improved; and the preparation process is simple, the cost is low, and the product is easy to preserve and has wide market prospects.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

Illumination system for ophthalmic examination

InactiveCN111938564ANarrow down the range of lightReduce eye irritationEye diagnosticsElectric machineryLighting system
The invention discloses a illumination system for ophthalmic examination. The illumination system comprises a base and an inspection mirror, wherein a first gear ring is arranged outside the inspection mirror in a sleeving manner, the first gear ring is rotatably connected with the outer side wall of the inspection mirror, a first motor is arranged at the end, close to the inspection mirror, of asupporting rod, an output shaft of the first motor is in driving connection with a first gear, the first gear is in engaged connection with the first gear ring, the first gear drives the first gear ring to rotate, a plurality of fixing rods are connected to the outer side wall of the first gear ring, a plurality of first illuminating lamps are arranged on the fixing rods, the end, away from the first motor, of the inspection mirror is sleeved with a lantern ring, the lantern ring is rotationally connected with the outer wall of the inspection mirror, and the outer side wall of the lantern ringis connected with a shading plate. According to the illuminating system, the illumination adjusting angle is large, different illumination angles can be adjusted according to the requirements of doctors, the brightness of local diffused light is increased, a uniform light source is generated in a small brightness area, and the inspection accuracy and the inspection efficiency can be improved.
Owner:ZHENGZHOU RAILWAY VOCATIONAL & TECH COLLEGE

Preparation method of eye drops

PendingCN113509436ASolve the technical problems of poor water solubilityRich varietyOrganic active ingredientsSenses disorderCyclodextrinAqueous solubility
The invention discloses a preparation method of eye drops, and the eye drops comprise a voriconazole solution clathrated by sulfobutyl-beta-cyclodextrin. The preparation method of the voriconazole solution clathrated by sulfobutyl-beta-cyclodextrin comprises the following steps: 1, dissolving voriconazole with an acid solution to obtain a solution A; 2, dissolving sulfobutyl-beta-cyclodextrin by using water for injection to obtain a solution B; 3, adding the solution A into the solution B under room-temperature stirring or ultrasonic conditions to obtain a mixed system; 4, stirring the mixed system in the step 3 at room temperature to obtain the voriconazole solution included by the sulfobutyl-beta-cyclodextrin. According to the voriconazole oral liquid, the voriconazole solution included by the sulfobutyl-beta-cyclodextrin serves as a main component, the defect that voriconazole is poor in water solubility can be effectively overcome, the voriconazole oral liquid is non-toxic and non-irritant to ocular surfaces and has an obvious sterilization and bacteriostasis effect on various common clinical fungi, the content of the voriconazole oral liquid can still be kept at about 98.3% after the voriconazole oral liquid is placed for two years, and the voriconazole oral liquid has high stability and clarity.
Owner:陕西省眼科研究所
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