Objective:To explore the changes of sensorimotor network functional connectivity and coefficient of variation of dyanmic functional connection in stroke patients before and after acupuncture on the left Yanglingquan by means of functional magnetic resonance, and explore the effect mechanism of needle retention.Methods:Twenty five patients with right subcortical cerebral infarction who were hospitalized in Dongzhimen Hospital from September 2014 to September 2019 were selected as the experimental group.In the same period 21 healthy controls were selected as healthy control group. The resting state and acupuncture state images were collected by functional magnetic resonance imaging, and the images were preprocessed. The sensory motor brain network of subjects was extracted by independent component analysis (ICA). The functional connectivity and dynamic changes were compared before and after acupuncture based on the sensory motor network.Results:In the experimental group, there were differences between acupuncture state and resting state in the left inferior parietal lobule. The acupuncture state was stronger than the resting state (P < 0.05, GRF correction). The coordinates of the peak point were (-27, -51, 48), the T value of the peak point was 5.502, and the number of voxels was 12. The variation of dynamic functional connectivity in the sensory motor network of acupuncture state was significantly lower than that in resting state( P<0.05, GRF correction), the peak point coordinates were (-5, -30, 39), the peak T value was -3.152, and the number of voxels is 9.In the control group, there was no significant difference between acupuncture state and resting state in functional connection of sensory motor network, while the difference of sensory motor network and thalamus between acupuncture state and resting state was statistically significant. The intensity of acupuncture state was lower than that of resting state ( P<0.05, GRF correction), the coordinates of peak point were (-12, 3, 6), the T value of peak point was -4.253, and the number of voxels was 183.There was no significant difference in the variation of dynamic functional connectivity in sensory motor network before and after acupuncture. Compared with the healthy control group, the functional connectivity of the experimental group was stronger than that of the healthy control group ( P<0.05, GRF correction). The coordinates of the peak point were (0, 42, 48), the T value of the peak point was 3.988, and the number of voxels was 53.The difference in the resting state of thalamus in the experimental group was weaker than that in the healthy control group ( P< 0.05, GRF correction), the coordinates of the peak point were (- 9, -15, 9), the T value of the peak point was -6.596, and the number of voxels was 101; there was no significant difference in the dynamic functional connectivity variability between the two groups, but there were scattered differences in the resting state ( P<0.05, GRF correction). With age, gender and course of disease as control variables, partial correlation analysis showed that the average functional connectivity strength in the sensory motor network of the experimental group was significantly higher than that of the Fugl Meyer assessment (FMA) of the lower limbs. There was a negative correlation between the scores of FMA. The correlation coefficient between the average functional connectivity in the sensory motor network of acupuncture state and the FMA score of lower extremity was -0.533 ( P=0.011), and the correlation coefficient between the average functional connectivity in the sensory motor network of acupuncture state and FMA score of lower extremity was -0.485 ( P=0.022). Conclusion:The brain function in acupuncture state sensorimotor network of patients with cerebral infarction is different from that in resting state, and this operation mode also has time-related fluctuation changes.

The medical equipment industry is an important foundation of the medical and health services,which is related to the life and health of people,as well as the overall situation of high-quality development.China has continuously issued important industrial policy documents,such as the"14th Five Year"Plan for Development of the Medical Equipment Industry and the"Action Plan for High-Quality Development of the Medical Equipment Industry(2023-2025)".The positive results have been achieved in the innovative development of medical equipment industry,which included emerging high-end medical equipment,key components of accelerating breakthrough,accelerated pace in application and demonstration,appeared vitality in the collaborative innovation of medical-industry,and continuous improvement of support capabilities for equipment.This article sorted out and summarized the achievements of innovation and development of China's medical equipment in the new era,and analyzed the existing problems,and looked forward to future development,and proposed suggestion on the basis of visual angle of formulating and executing the"14th Five Year"Plan for Development of the Medical Equipment Industry.