5results about How to "Tight adhesion" patented technology

The application discloses a kind of composite twisting device for bamboo fiber yarn and its twisting method, it is related to the technical field of fiber yarn twisting device, to solve the problem that existing twisting device does not have dry twisting and wet twisting can be realized twisting device, while purchasing two equipment production cost is high, the front side of the base is provided with silk feeding frame, infrared radiation heating tube slot is opened at the middle position of the upper end of the silk feeding frame, infrared radiation heating tube is arranged in the infrared radiation heating tube slot, guide frame support frame is symmetrically arranged at the center position of the rear side of the upper end of the silk feeding frame, guide roller is rotatably arranged between two guide frame support frames, glue collecting mechanism support seat is arranged below the guide frame support frame, two glue collecting mechanisms are symmetrically arranged in the glue collecting mechanism support seat, and glue collecting nozzle is arranged at the upper end of the glue collecting mechanism.

The invention discloses mussel-imitating bacteria responsive injectable hydrogel as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The hydrogel is formed by compounding a mussel-imitating viscous hydrogel bracket and a bacterial response agent, the viscous hydrogel scaffold is QCS-EC (Quaternized Chitosan) and is formed by non-covalent binding of QCS (Quaternized Chitosan) and EGCG (Epigallocatechin Gallate); the bacterial response agent is a supramolecular nano cross-linked compound TEBox-B12, and is formed by self-assembly of box-shaped quaternized pyridine heterocyclic organic salt molecules TEBox and salt containing suprachaotropic liquid anions B12H12-through hydrogen bonds and electrostatic interaction. The hydrogel disclosed by the invention has NIR-II photo-thermal and photodynamic antibacterial treatment functions, and can be used for efficiently killing bacteria in deep tissues; the hydrogel also has high adhesion, good biocompatibility and injectability, is strong in convenience and applicability, can provide a good healing environment for wounds, promotes fibroblast proliferation and migration, accelerates wound tissue regeneration and healing processes, and reduces scar formation.

The utility model relates to the technical field of decorative plates, in particular to a building outer wall decorative plate, which is characterized in that the decorative plates are sequentially adhered to a wall surface, so that four end grooves among the decorative plates can form a circular groove, bolts on a seat body can be sequentially embedded into insertion holes in the end grooves, and the tail ends of the bolts can be nailed into the wall surface. The seat body can be adaptively mounted in a circular groove formed by the four end grooves, so that the splicing stability between the decorative plates can be improved through inlaying mounting between the plug pins and the plug holes, and the decorative plates and other plates can be prevented from falling off; the tail end of the bolt is nailed into the wall surface, so that the adhesion stability between the decorative plate and the wall surface can be improved; meanwhile, the decorative plates can be separated through the partition plates on the seat body, so that equal intervals can be reserved between the decorative plates, workers can conveniently fill the decorative plates with the seam beautifying agent in the later period, meanwhile, the decorative plates can be supported through the partition plates, and the installation stability of the decorative plates can be further improved.

The invention relates to a pulmonary artery balloon blocking hemostasis device for lung cancer surgery. The pulmonary artery balloon blocking hemostasis device comprises a puncture assembly and a balloon catheter assembly. The puncture assembly comprises a puncture needle core and a puncture sheath tube; a limiter is sleeved on the puncture sheath tube, sheath tube scales are arranged on a tube body, and the depth of the puncture sheath tube inserted into a pulmonary artery blood vessel is determined by adjusting the position of the limiter on the sheath tube scales; the puncture needle core penetrates into the puncture sheath tube, and the head end extends out of the puncture sheath tube for implementing puncture operation; the balloon catheter assembly comprises a balloon catheter and a balloon connected to the outer portion of the balloon catheter in a sleeving mode. The balloon catheter can stretch into the puncture sheath tube and enables the balloon to stretch out of the puncture sheath tube. The near end of the balloon catheter is externally connected with a medical tee joint or directly externally connected with an injector; a puncturable silica gel membrane is arranged at the near end of the puncture sheath tube and used for preventing blood from flowing back when the puncture needle core and the balloon catheter retreat.

The invention relates to ultraviolet-cured high-viscoelasticity ionic conductive hydrogel as well as a preparation method and application thereof, and belongs to the technical field of functional polymer materials and bioelectronics. According to the hydrogel, an ultraviolet light sensitive zwitterionic monomer (SBMA), a high-density cationic monomer (DMDMAC), a cross-linking agent (PEGDA) and a photoinitiator are selected, and under the ultraviolet light exposure condition, the photoinitiator is decomposed to generate active free radicals to trigger a cross-linking polymerization reaction. The hydrogel has a three-dimensional network structure, integrates softness, high stretchability, strong tissue adhesion and high conductivity, and has fracture tensile strain gt; the adhesive strength is gt; and the ionic conductivity can reach 2.24 S / m. The preparation process is simple, rapid in-situ forming of the hydrogel on the skin surface can be achieved, the flexible biological electrode prepared based on the hydrogel has low skin-electrode interface impedance, motion artifacts are effectively inhibited, and the flexible biological electrode is suitable for long-term, dynamic and high-signal-to-noise-ratio biological electric signal monitoring and has good application prospects. And good biocompatibility and wearing comfort are achieved.