43results about How to "Meet medical requirements" patented technology

The invention belongs to the technical field of an ophthalmology specialty medical apparatus, in particular to a weak sight integrated therapeutic apparatus with triple visual function. The invention comprises a base seat, a support seat and a main body, wherein, the base seat is connected with the casing body of the main body through the support seat, a binocular tube, convex lens, a picture, a light guide sheet and a back light source are arranged in the casing body of the main body, the convex lens, the picture, the light guide sheet and the back light source are installed along each eyepiece sleeve shaft in sequence. Through the technical proposal of the invention, the weak sight integrated therapeutic apparatus not only has the function of Haidinger brush training, red light flickering training, fine grade sight contrast training, optical grating training, fine eyesight training and afterimage training, but also has the function of triple visual function training, including binocular vision, stereo vision and a confluence function, the invention not only can improve the eyesight of a weak sight patient through the fine eyesight training, but also can recovery and establish the stereo vision of the weak sight patient through the triple visual function training.

The invention discloses an anti-adhesion medical composite film which is composed of a first surface layer, a second surface layer and an inner layer, wherein the inner layer is attached onto the first surface layer, and the second surface layer is attached onto the inner layer; the first surface layer and second surface layer respectively comprise the following components in parts by weight: 49-61 parts of low-density polyethylene, 38-51 parts of linear low-density polyethylene, 0.5-0.7 part of parts of and 0.04-0.06 part of lubricant; and the inner layer comprises the following components in parts by weight: 20-70 parts of low-density polyethylene and 30-80 parts of medium / high-density polyethylene. The anti-adhesion medical composite film disclosed by the invention has the advantages of stable friction factor and favorable anti-adhesion property; the medical product produced by the film does not have the adhesion phenomenon after being folded, sterilized by oxirane and the like and unfolded; and the unfolded anti-adhesion medical composite film has good transparency and favorable integral appearance effect.

The invention provides a controlled drug release magnesium or magnesium alloy bionic bone and a preparation method thereof, belonging to the technical field of biomedical materials. The invention provides a preparation method of controlled drug release magnesium or magnesium alloy bionic bone, comprising the following steps: performing pulse laser processing on magnesium or magnesium alloy according to predetermined bone structure parameters to obtain porous magnesium or magnesium alloy; Or the magnesium alloy is subjected to micro-arc oxidation treatment and alkali treatment in sequence to obtain modified porous magnesium or magnesium alloy; soak the modified porous magnesium or magnesium alloy in the Chinese medicine slow-release solution, take it out and dry it to obtain controlled drug release magnesium or magnesium alloy. Magnesium alloy bionic bone; the Chinese medicine slow-release solution includes naringin, PLGA and a volatile solvent of soluble polylactic acid-glycolic acid copolymer. The preparation method provided by the invention has a simple process, does not need to add a foaming agent or a pore-forming agent, and the prepared drug-releasing magnesium or magnesium alloy bionic bone has excellent performance.

The embodiment of the present invention provides a bone cement chain bead mold. The mold includes: one or more upper mold covers and the same number of lower mold covers as the upper mold covers, a steel cable front buckle, a steel cable tail buckle, a pressure screw and a pressure nut; the bone cement chain according to the embodiment of the present invention The bead mold adopts a modular configuration, and the user can flexibly configure the number of mold upper cover and mold lower cover according to the length and number of beads required by the patient; antibiotics can be prepared according to the patient's infection bacteria, and the mold is used to make infection control chain beads, which is simple and convenient to operate. Use; the mold adopts a unique design of pressure and ventilation holes, which can effectively ensure the formation of bone chain beads; the mold adopts a special silicone coating, which is convenient for mold opening and reduces the generation of flash; the mold adopts a special positioning structure design, which can reduce errors and Save operation time; the mold adopts the steel cable axis positioning and fixing design to ensure that the steel cable connecting the bone chain beads can pass through the center of the chain beads. In short, the bone cement chain ball mold can better meet the treatment needs.

The invention discloses an adjustable operating room hand bracket which comprises a supporting part connected with a bed, a first supporting plate, a second supporting plate and a first connecting piece connected with the first supporting plate and the second supporting plate. The first supporting plate and the second supporting plate are arranged at the upper portion of the supporting part, the first supporting plate is in rotatable connection with the supporting part and comprises a transverse adjusting part and a rotary adjusting part, one end of the transverse adjusting part is provided with a horizontal rod, a horizontal hole for the horizontal rod to be inserted is formed in the end, connected with the first connecting piece, of the first supporting plate, the other end of the transverse adjusting part is in rotary connection with one end of the rotary adjusting part, and the second supporting plate is connected with the other end of the rotary adjusting part through a spherical hinge. The adjustable operating room hand bracket has the advantages that normal human body upper limb activities and position placement can be simulated and the comfort level of a patient can be improved through the linkage effect of multiple parts, a certain diagnosis and treatment requirements of modern medical treatment can be met through part adjustment, and the adjustable operating room hand bracket is fixed by adopting a firm joint and is safer.

The present invention relates to the field of papermaking. Aiming at the problem of insufficient antibacterial properties of medical crepe paper, a preparation method of medical crepe paper is provided, which uses northern wood pulp as fiber raw material, and successively undergoes pulping, long fiber free beating, refining and homogenization. Pulping, papermaking, wet vat wrinkling, and drying to prepare medical crepe paper, and adding polyoxyethylene stearate nonionic softener and antibacterial agent after refining the fiber raw material. The present invention selects polyoxyethylene stearate non-ionic softener to solve the softness of paper, meets medical requirements, and meets papermaking requirements, and adds antibacterial agents to fiber raw materials, so that medical crepe paper can pass through physical and chemical comprehensive antibacterial effects. , to obtain better antibacterial properties.

The invention discloses a method for preparing degreased cotton. The method includes the following steps of 1, cotton opening; 2, immunity removing; 3, cotton carding; 4, degreasing, wherein linter obtained after cotton carding is placed into a boiling-off pot, a NaOH solution with the concentration of 22-28 g / L and the temperature of 70 DEG C is added to permeate into the linter obtained after cotton carding, then the temperature is increased to 95 DEG C or above for convection, the mixture is boiled off for 7-8 h from the convection time, the boiling-off temperature is kept being 95-100 DEG C in the boiling-off process, the alkaline solution is recycled after the boiling-off process is completed, and the obtained product is washed with hot water and cold water and dried; 5, bleaching; 6, pickling; 7, washing; 8, drying. The indexes including the pH value, readily-oxidizable substances and biocompatibility of the prepared degreased cotton meet the medical requirements, the whiteness can be 85 degrees or above, the size of surface active substances is not larger than 2 mm, and the amount of water absorbed by 10 g of degreased cotton in 20 s can be 23 g or above.