5 results about "Povidone-Iodine Solution" patented technology

A rapid evaluation method for the stability of a povidone-iodine solution relates to the technical field of detection methods, and comprises the following steps: S1, selecting a plurality of test attenuation rates of a povidone-iodine solution sample; s2, screening out samples with the attenuation rate equal to 8%, and calculating a chromatic aberration average value S1 of the samples; s3, the filter paper is placed on the clean glass surface, and the chromatic aberration average value S0 of the filter paper is calculated; s4, calculating a detection threshold value according to a formula delta1 = S1-S0 =-3; s5, calculating the average value S 'of the povidone-iodine product of which the stability is to be evaluated; S6, putting filter paper on a clean glass surface and calculating the average value S' 0 of the filter paper; s7, calculating the relative blank color difference value delta '= S'-S '0 of the sample to be detected; if delta 'is greater than-3, judging that the product is qualified; and-3, judging that the product is unqualified; and S8, judging the effectiveness of the detection in the steps S5-S7. According to the method, the stability of the povidone-iodine solution which is actually detected can be evaluated in a short time, the test period is shortened, the detection efficiency is improved, the detected data is verified through the prior art, and data support is provided for actual application.

The utility model discloses stirring equipment for povidone-iodine solution production, which comprises a box body, a backflow assembly is arranged in the box body, the backflow assembly comprises a backflow pipe, a backflow cavity is arranged in the box body, the inner wall of the backflow cavity is connected with a filter plate through a bolt, the inner wall of the backflow cavity is provided with a circular groove, and the circular groove is connected with the filter plate through a bolt. The inner wall of the circular groove is connected with a backflow pipe through a flange, the circumferential outer wall of the backflow pipe is sleeved with a circulating pump, a first motor is arranged above the backflow cavity, a lead screw is arranged above the filter plate, an output shaft of the first motor is inserted into the lead screw, and the circumferential outer wall of the lead screw is sleeved with a push plate. According to the stirring equipment for production of the povidone-iodine solution, the stirring equipment is provided with the backflow assembly, so that the production cost is better maintained, and secondly, the stirring equipment is provided with the adjusting assembly, so that the treatment efficiency of the stirring equipment is better maintained.

This invention discloses a biodegradable bio-based composite wound dressing and its preparation process, relating to the field of chitosan dressing processing technology. Chitosan powder is added to purified water and stirred for 60 minutes in a constant temperature water bath to fully dissolve and form a chitosan solution. Sodium carboxymethyl cellulose is added, and stirring continues until completely dissolved. After pH adjustment, glycerin and povidone-iodine solution are added sequentially, and stirring is continued for 20 minutes to ensure the system is homogeneous and free of sediment. The mixed solution is filtered through an 80-mesh filter to remove undissolved impurities, yielding a clear dressing precursor solution. This solution is then poured into a custom mold, pre-frozen in a low-temperature freezer, and then transferred to a vacuum freeze dryer for drying. After drying, a porous sponge-like preform is obtained. The dried porous sponge preform is flattened and fed into a slitting machine for cutting. After cutting, individual dressing pieces are collected, packed into medical polyethylene composite film bags, and sealed using a packaging machine. The packaging is sealed through a processing procedure, and then sterilized and ventilated to complete the process.

We provide a ready-to-use, gamma-sterilized package containing a gamma-sterilized povidone-iodine solution with an available iodine concentration exceeding the minimum effective concentration. [Solution] A ready-to-use gamma-ray sterilized surgical disinfectant composition comprising an initially non-toxic concentration of povidone-iodine exceeding the minimum effective concentration of available iodine, an amount of iodide sufficient to provide donor iodine after gamma irradiation to stabilize the povidone-iodine and maintain the minimum effective concentration of available iodine, and buffered saline.

The invention discloses a conveying mechanism for conveying povidone iodine solution bottles, which comprises a clamping and fixing mechanism, the clamping and fixing mechanism comprises a base, the two sides of the top of the base are fixedly connected with supporting strips through two groups of piston rods respectively, and two clamping strips are arranged between the outer surfaces of the supporting strips on the two sides; the outer surfaces of the two clamping strips are fixedly connected with the outer surfaces of the supporting strips on the two sides through spring rods, inclined chamfers are formed in the upper portions of the inner arc edges, close to each other, of the two clamping strips, and the two clamping strips are pushed to mutually abut against the bottom of a solution bottle. The invention relates to the technical field of conveying mechanisms, and solves the problems that when an existing conveying mechanism conveys the solution bottles, clamping is difficult, stability is insufficient, transferring and cooling interfere with each other in the conveying process, and the conveying efficiency is high. And the actual transfer efficiency and the cooling efficiency are poor.