Medical equipment, as an important indicator of smart hospital evaluation, plays a vital role in hospital operations. To ensure the safe and efficient operation of medical equipment, a reasonable performance evaluation system is indispensable. This study introduces a platform based on Internet of Things (IoT) technology that connects medical devices and collects data, achieving standardized and structured data processing, and supporting online operational supervision. Through the Delphi method, a performance evaluation system for large medical equipment is constructed, including 4 primary indicators and 22 secondary indicators. DICOM data acquisition devices are used to achieve functions such as efficiency analysis, benefit analysis, usage evaluation, and decision-making support for medical equipment. The study is still in its early stages, and in the future, it is expected to integrate more types of equipment, achieve rational resource allocation, and significantly impact decision-making for the development of public hospitals.
Internet of Things ; Delphi Technique

OBJECTIVE: Evaluate the clinical application effect of low-field infant MRI. METHODS: Using literature review, expert consultation, and two rounds of Delphi to determine the evaluation index system. Then retrospectively analyze and compare the data of low-field infant MRI and high-field MRI from January 2023 to December 2024. RESULTS: There is a certain gap between low-field infant MRI and high-field MRI in terms of signal-to-noise ratio, image uniformity, software system reliability, scanning time, user interface friendliness and image result consistency. However, there was no difference in terms of spatial resolution and image quality. The noise, hardware system reliability, mean time between failure and the rate of examination completed without sedation are better than that of high-field MRI. CONCLUSION Low-field infant MRI meets needs of clinical diagnostic and has stable performance. It can be used as a routine screening tool for brain diseases near the bed.
Magnetic Resonance Imaging/methods* ; Humans ; Infant ; Retrospective Studies ; Signal-To-Noise Ratio ; Reproducibility of Results ; Brain Diseases/diagnostic imaging* ; Brain/diagnostic imaging* ; Software

Objective: To analyze characteristics of iron-deficient blood donors, implement targeted interventions, and evaluate their effectiveness, thereby providing a reference for formulating blood donor recruitment and care strategies. Methods: Based on serum ferritin (SF) test results, the apheresis platelet donors were divided into the low SF group (n=90; 45 males and 45 females) and the normal SF group (n=651; 510 males and 141 females). The results of related indicators of the two groups were compared and analyzed. Interventions for the low SF group included extending the blood donation interval to at least 45 days (group A) and oral iron supplementation combined with the extended donation interval implemented in group A (group B). Pre-intervention and post-intervention SF results were compared. Results: For both male and female donors, serum iron levels were significantly lower in the low SF group than those of the normal SF group, while the levels of transferrin, unsaturated iron binding capacity (UIBC) and total iron binding capacity (TIBC) were higher in the low SF group compared to the normal SF group. Some indicators related to red blood cells showed changes, with more evident alterations in females than in males. Twenty-eight donors in group A and 39 donors in group B completed the study after intervention. SF value in group A was (18.32±8.09) μg/L at baseline and (26.21±17.30) μg/L after intervention. Similarly, SF value in group B was (15.87±7.69) μg/L at baseline and (26.24±15.55) μg/L after intervention. In both groups, SF values after intervention were significantly higher than baseline values. However, the magnitude of change did not significantly differ between groups A and B. Conclusion: Other related indicators in blood donors with low ferritin have also experienced some changes, suggesting that some blood donors may have entered the stage of iron-deficient erythropoiesis. Extending blood donation interval facilitates the recovery of iron storage in low-ferritin apheresis platelet donors. Blood stations should develop care strategies for apheresis platelet donors, including, at a minimum, the prolonged blood donation interval for donors with low ferritin.

The development of efficient molecular imaging probes with high specificity, high sensitivity, and low toxicity is the core in promoting the development of cancer molecular imaging technology. Natural expressed purified protein-based nanocage with self-assembling ability to form intrinsically cavity structure has been widely used to prepare various molecular imaging probes of cancer for its ideal physical properties, excellent biological compatibility, exceptional biodegradability as well as diverse engineering strategies. This paper focuses on the research progress of natural protein-based nanocage from the following aspects: various types of protein-based nanocages of different origins and compositions, cargos loading mechanisms, functionalization strategies, and their recent advances in cancer molecular imaging.

Objective: To investigate the effects of milrinone on levels of inflammatory factors and liver and renal function after CPB in rheumatic heart disease patients for valve replacement. Methods: From January 2014 to January 2016, 80 patients received valve replacement in the Central Hospital of Chongqing Three Gorges were randomly divided into observation group and control group by block randomization grouping method, with 40 patients in each group.The patients in the observation group were pumped intravenously with milrinone 0.5μg·kg^-1·min^-1 for 72h after surgery, while the patients in the control group were not pumped.The serum levels of IL-6, IL-8, IL-10, TNF-α were detected by ELISA before operation and on 0d, 1d, 3d, 5d after operation, respectively.The levels of ALT, AST, Scr were also detected at the same time.Moreover, the time for operation, extracorporeal circulation, interruption, mechanical ventilation, ICU and hospital were also compared between the two groups. Results: The levels of TNF-α, IL-6, IL-8 and IL-10 increased immediately after operation in both groups[control group: (14.97±5.14)pg/mL, (52.45±10.37)pg/mL, (34.10±8.38)pg/mL, (32.27±8.45)pg/mL; observation group: (16.05±5.71)pg/mL, (54.39±8.56)pg/mL, (33.80±7.69)pg/mL, (31.48±5.94)pg/mL, t=-0.628, -0.644, 0.116, 0.342], and the peak values of TNF-α, IL-6 and IL-8 reached on the first day after operation in both two groups[control group: (52.07±10.18)pg/mL, (96.04±26.45)pg/mL, (91.14±18.28)pg/mL, (48.10±9.78)pg/mL; observation group: (50.37±12.98)pg/mL, (93.66±24.10)pg/mL, (83.16±16.28)pg/mL, (46.68±9.25)pg/mL, t=0.559, 0.295, 1.458, 0.473], and the peak value of IL-10 reached on the 3rd day after operation(t=-3.577), the differences were statistically significant on the 3rd day after operation[control group: (36.03±9.39)pg/mL, (59.56±14.38)pg/mL, (53.91±13.16)pg/mL, (85.55±16.49)pg/mL; observation group: (36.70±4.33)pg/mL, (36.20±3.85)pg/mL, (42.91±7.30)pg/mL, (101.33±10.81)pg/mL, t=-0.289, 7.017, 3.267, -3.577]. The levels of ALT, AST and Scr increased immediately after operation in both groups[control group: (38.51±5.12)U/L, (40.23±5.03)U/L, (62.27±5.02)μmol/L; observation group: (39.20±4.67)U/L, (39.6±4.94)U/L, (73.61±4.04)μmol/L, t=0.114, 0.243, 0.630], there were tatistically significant difference between the two groups on the 5th day after operation[control group: (61.45±5.27)U/L, (54.20±7.0)U/L, (86.45±9.01)μmol/L; observation group: (36.20±3.85)U/L, (34.85±7.12)U/L, (83.7±11.07)μmol/L, t=11.231, 9.224, 5.647], and on the fifth day, the levels of ALT, AST and Scr in the observation group dropped to normal, while only the level of Scr in the control group dropped to normal.There were no statistically significant differences in the time of operation, extracorporeal circulation, interruption, mechanical ventilation between two groups (t=0.267, 0.151, 0.187, 0.773, all P>0.05). However, there were statistically significant differences in the time of ICU and hospital [control group: (54.90±16.84)h, (14.35±3.01)d, observation group: (44.05±7.06)h, (10±1.86)d, t=8.149, 13.042, all P<0.05]. Conclusion Milrinone can obviously improve the inflammatory reaction in surgical trauma tissues caused by IL-6, IL-8, IL-10, TNF-α, and can protect liver, renal tissue from injury, moreover, it can decrease the incidence of postoperative complications and the length of hospital stay.

With the continuous improvement and wide application of hospital information, more and more medical equipment is integrated into the hospital information systems, which brings new work contents and challenges for the traditional clinical engineers. This paper reviews and evaluates the current situation of networked medical equipment in the hospital. By applying the ISO 80001 and the MDS(Manufacturer Disclosore Statement for Medical Device Security), the paper puts forward the measures and suggestions for the security management of networked medical equipment.
Equipment Safety ; Equipment and Supplies ; Hospital Information Systems ; Safety Management

Objective:To investigate the protective effects of Jiannao Yishou capsule(JYC) on hippocampal in Alzheimer's dis-ease (AD) mice. Methods:Male mice were randomly divided into normal control group,model control group,positive control group (donepezil hydrochloride tablets,0.001 g·kg-1),JYC high-dose (3.744 g·kg-1) and low-dose (0.936 g·kg-1) group. Morris water maze was used to test the learning and memory ability of mice. The hippocampal capillary structure was observed by light micros-copy and electron microscopy and the level of hippocampal Aβ was measured by enzyme-linked immunoassay.Results:Compared with the normal control group,the model control group learning and memory significantly reduced,and capillary endothelial cell mitochon-drial degeneration,nuclear condensation,broadening of the perinuclear space,overlapping,Aβ in hippocampal of AD mice were sig-nificantly reduced (P<0.05). Compared with the model control group,the JYC high-dose group learning and memory of mice im-proved significantly (P<0.05),and hippocampal capillary endothelial cell morphology improved significantly,and Aβ in Hippocam-pal of AD mice were significantly reduced(P<0.05). Conclusion:JYC can maintain normal morphological structure of hippocampus capillaries of AD mice,decrease Aβ responses and Improve learning and memory. JYC has protective effects on hippocampal tissues in AD mice.

As the dressings currently used in clinic settings unflat shape in general, they can't be fitted completely on occiput, heel, elbow, knee and other body parts unflat. This paper developed one kind of foam dressing of special shape based on local anatomy. The foam dressing is waterproof and air permeable, it can cover the wound closely enough to prevent bacteria from invasion and infection. With a saturated absorption ratio of 1: 8 or higher, it can keep the wound clean and moisture by absorbing large amounts of wound inflammatory secretions and is almost completely permeable to oxygen and carbon dioxide. Assuring safety and effect meanwhile, it has better outcomes than common dressings in the same application settings.
Bandages ; Wound Healing

Objective To evaluate factors associated with mechanical ventilation in infants and young children undergoing cardiac surgery with pulmonary hypertension.Methods 161 Children who were ≤36 months of age, had congenital heart disease with pulmonary hypertension, and had been treated at our hospital between October 2011 and April 2013 were included in this retrospective study.Stepwise linear regression analysis was used to analyse the independent risk factors associated with mechanical ventilation (MV).Results The average of MV time was 40.9 h, the independent risk factors for MV were cardiopulmonary bypass(CPB) time (P =0.020), risk adjustment for surgery for congenital heart disease (RACHS-1) (P =0.014) ,low cardiac output syndrome(LCOS) (P ＜0.001), ventilator-associated pneumonia(VAP) (P =0.001) and postoperative pulmonary artery systolic pressure (sPAP) (P ＜ 0.001).Conclusion The present results suggest that CPB time,RACHS-1 score, LCOS, VAP and postoperative sPAP can significantly affect the MV time in infants and young children with pulmonary hypertension after cardiac surgery.