3results about How to "Avoid allergic reactions" patented technology

The application discloses a kind of high adhesion hydrogel for electroencephalogram test and its preparation method and application, belong to biomedical engineering technical field.The hydrogel includes the following components crosslinked product: anionic monomer, cationic monomer, monomer and mutual penetration agent;The anionic monomer is any one of malic acid, gluconic acid, citric acid and lactic acid, cationic monomer is betaine or acetyl L-carnitine, monomer is N, N-dimethyl acrylamide, acrylic acid, sodium acrylate, 4-acryloyl morpholine or sodium acrylamidomethyl propane sulfonate, mutual penetration agent is sodium chloride aqueous solution or sodium chloride water-retaining agent solution.Preparation, cationic monomer is mixed and dissolved, vacuum drying, adding photo initiator mixing, then mutual penetration agent is added, and it is obtained by ultraviolet light crosslinking.The hydrogel of the application has high adhesion (adhesion strength reaches 203.22 kPa), high ion mobility and excellent biocompatibility, and the signal gain in EEG and ECG test reaches 2-3 times of traditional conductive paste, which can be widely used in medical conductive paste field.

The application discloses a catheter protection device and relates to the technical field of medical devices, which comprises an arc-shaped plate, connecting round rods, magic tapes, soft wheels and a fixing assembly, the arc-shaped plate is fixedly connected with the symmetrically arranged connecting round rods, one of the symmetrically arranged connecting round rods is uniformly fixedly connected with the magic tapes, the magic tapes pass around the other connecting round rod, and the arc-shaped plate is uniformly and intervally rotationally connected with the soft wheels. The arc-shaped plate is fixed on the thigh of a patient by the magic tapes, and then the catheter is fixed by side pressing plates and a large pressing plate. In this way, the catheter does not need to be fixed by adhesive tapes, the patient can avoid allergic reactions to the glue of the adhesive tapes, the adhesive tapes can avoid falling off due to the body fluid of the patient, and thus the fixing effect on the catheter is affected.

The utility model belongs to the technical field of agricultural planting, and particularly relates to a mixing and spraying device for agricultural planting, which comprises a moving trolley and further comprises a storage box, the storage box is fixedly mounted at the top of the moving trolley, limiting grooves are formed in two sides of the storage box, limiting blocks are slidably mounted in the limiting grooves, and connecting pipes are fixedly mounted at the bottoms of the limiting blocks. A spraying pipe is fixedly mounted at one end of the connecting pipe; a plurality of nozzles are fixedly mounted at the bottom of the spraying pipe; the two fixing assemblies are located on the two connecting pipes correspondingly and used for fixing the two connecting pipes correspondingly; when the whole device is used, it is ensured that sprayed pesticide is located behind the moving position of a worker, the pesticide can be prevented from floating on the body of the worker, anaphylactic reaction is avoided, the connecting pipe can be folded, the whole device can be conveniently transported, and large space is prevented from being occupied.