Growth Habits: This plant thrives in warm and humid conditions and is not cold-tolerant. It can be grown in general soil, but it performs best in deep, nutrient-rich, well-drained sandy loam with a high content of organic matter. Proper soil preparation is essential for optimal growth and yield. Planting Methods: The most common method of propagation is through seeds. Direct sowing is typically used. From the Vernal Equinox to the Grain Rain Festival, apply sufficient base fertilizer to the planting area, then plow the soil and make furrows at a spacing of 33 cm. Create shallow grooves about 1 cm deep, evenly spread the seeds, and gently cover them with soil. Water the area thoroughly after planting. Keep the soil moist until the seeds germinate, which usually takes about two weeks. Field Management: Once the seedlings reach a height of 3–6 cm, thin them out so that there is a spacing of 10–15 cm between plants. After transplanting, loosen the soil and remove weeds regularly. Ensure the soil remains loose and free from compaction. When the stems begin to flower, apply a top dressing to support further growth. In the early spring of the second year, water and fertilize the plants again to promote healthy development. Pests and Diseases: Common issues during the growing period include powdery mildew and rust. To manage powdery mildew, use a 50% wettable carbendazim powder diluted at a ratio of 500–1000 times and spray the affected areas. For rust, apply 97% mancozeb at a dilution of 200–250 times. Earthworms are a major pest, and they can be controlled by applying 90% trichlorfon diluted at 1500 times. Harvesting and Processing: The entire herb is used as motherwort, while the fruit is known as Qi Weizi and has medicinal value. Harvest the whole plant when the flowers bloom in summer and autumn, cut it at ground level, and dry it in the sun. Collect the ripe fruits in autumn, dry them thoroughly, and remove any impurities before storage or sale.
Cannulated screw is a common internal fixation device in orthopedic surgery.
Working process
During the operation, the Kirschner wire with the hole matching the hollow screw is first drilled into the bone of the fracture site, and then the hollow screw is screwed into the fracture site through the guidance of the Kirschner wire. Finally, the Kirschner wire is pulled out to complete the fixation of the fracture site. In many cases of fracture of the neck and femur, the healing cycle is long, and it usually takes about 30 months to remove the cannulated screws. At this point, the bone and the surface of the cannulated nail are closely connected and firmly connected in the nail path, which leads to defects easily generated by conventional nail removal methods, causing secondary injury at the fracture healing site and causing pain to the patient. Percutaneous cannulated screw internal fixation for femoral neck fractures has the advantages of small trauma, good healing, low rate of femoral head necrosis, and good stability.
compression fracture,Cannulated Screws,surgery screws,Orthopedic Screw Jiangsu Aomed Ortho Medical Technology Co.,Ltd , https://www.aomedortho.com