Application of self-made "medical ventilation chair" in patients with acute respiratory distress syndrome in prone position / 中国实用护理杂志

Objective:To investigate the effect of self-made medical ventilation chair in patients with acute respiratory distress syndrome (ARDS) ventilated in prone position, with the aim of reducing the occurrence of complications in patients with ARDS ventilated in prone position.Methods:This study was a quasi experimental research method. In this study, 78 patients admitted to the respiratory intensive care unit of Changsha Central Hospital affiliated to South China University from October 2019 to September 2021 were selected for the study by convenience sampling method, and were divided into a control group and a experimental group according to the order of admission, with 39 cases in each group. The experimental group was ventilated in the prone position using a self-made medical ventilation chair, and the control group was ventilated in the prone position using the conventional turning method, comparing the facial skin injury, tracheal displacement, tracheal tube obstruction, and RICU hospitalization time in the two groups.Results:At the end of prone position ventilation, the incidence of facial skin intact and redness and swelling was 56.41% (22/39) and 43.59% (17/39) in the experimental group and 25.64% (10/39) and 69.23% (27/39) in the control group, respectively, with statistically significant differences ( χ2=7.63, 5.21, both P<0.05); there was no statistically significant difference in the incidence of facial skin breakdown between the two groups ( P>0.05); the incidence of complications was 5.13% (2/39) in the experimental group and 20.51% (8/39) in the control group, with statistically significant differences ( χ2=4.13, P<0.05); the duration of RICU stay was (13.34 ± 3.85) days in the experimental group and ( 15.80 ± 5.55) days, with a statistically significant difference ( t=2.25, P<0.05). Conclusions:The use of self-made medical ventilation chair can reduce the facial skin damage of patients, reduce the occurrence of related complications, and shorten the hospitalization time of RICU. It is worth popularizing and applying in ICU.

Design and simulation for seeding performance of high-speed inclined corn metering device based on discrete element method (DEM).

Mechanical precision corn seed-metering planter has a compact structure, missed and repeated seeding advantages during high-speed operation. In this regard, the current research study focuses on the development of a corn seed planter that features an inclined seed-metering device. The spatial layout of the seed-metering device is optimized to change the seed-filling mode to meet the needs of high-speed operation. Firstly, the mechanical characteristics and seeds in the metering device chamber were analyzed, and then the seed-filling stress model was established. Secondly, a mechanical model for corn seed particles was developed for virtual simulation tests and numerical analysis using the discrete element method (DEM) and EDEM software. Moreover, a quadratic rotating orthogonal center combination test was implemented by setting the inclination angle of seed-metering device θ(A), machine ground speed v(B), and rotation speed of metering disc n(C) as the influence factors, with the missed seeding rate M and the seed-filling stress S as the evaluation indices. The results indicated that the most significant factors affecting the missed seeding rate, seed-filling stress, S, were the rotation speed of the metering disc (n) > machine ground speed (v) > inclination angle of the metering disc (θ) and inclination angle of the metering device (θ) > rotation speed of the metering disc (n) > machine ground speed (v), respectively. However, the field verification test shows that the optimized corn seed-metering planter achieved mean values of M = 4.33, Q(qualified seeding rate) = 92.83%, and R(repeated seeding rate) = 2.84%, with average relative errors of 1.17% compared to the simulation tests and the accuracy and effectiveness of the DEM simulation model was verified. Therefore, the developed corn seed-metering device meets the industry standards and operation requirements for precise corn sowing, and technical support can be given for future studies of similar precision seeding equipment.

The research of different diet modes of patients with hemoptysis of pulmonary tuberculosis after embolism operation / 中国实用护理杂志

Objective To discuss the influences of fasting on the embolism adverse reactions, sense of hunger, blood amylase, blood glucose and anxiety of patients with hemoptysis of pulmonary tuberculosis after embolism operation. Methods Selected 92 cases of patients with hemoptysis of pulmonary tuberculosis who have taken bronchial artery embolism in Pulmonary hospital of Changsha central hospital from June 2014 to December 2015,randomly divided the patients into three groups according to operating date, namely, the non-fasting group, 6h fasting group and 24h fasting group. The non-fasting group have routine diet after the operation; the 6h fasting group and 24h fasting group respectively fasted for 6 hours and 24 hours. Then compared the embolism adverse reactions, sense of hunger, blood amylase, blood glucose and anxiety of the patients in the three groups so as to check whether there is difference. Results Before operation, there was not significant difference in adverse reaction of embolism, sense of hunger, anxiety, blood glucose and amylase between the three groups (P > 0.05). After operation, there was significant difference in hunger sense of difference between the three groups(F=13.308,P0.05). Conclusion Fasting will cause and intensify the sense of hunger, anxiety and nutrition disorder of patients with hemoptysis of pulmonary tuberculosis after embolism.

Indwelling Catheter and Urinary Infection:Monitoring Analysis and Nursing / 中华医院感染学杂志

OBJECTIVE To find out risk factors of urinary infection caused by indwelling catheter. METHODS The data of indwelling catheter patients were recorded according to the pre-planned table by adopting survey techniques of prefigure and analyzed retrospectively. The infection cases were diagnosed by rule of Diagnostic Standard of Hospital Infection issued by Ministry of Health. RESULTS A total of 734 indwelling catheter patients were surveyed from Jan to Dec in 2006. Of the 100 patients,the infection rate was 13.62%. The main reasons were the duration of indwelling catheter and improper usage of antibiotics. The main pathogeny was G-bacteria,of which Escherichia coli accounted for 28.95%,fungi for 31.58%. CONCLUSIONS Enhancing nursing care for indwelling catheter patients; reducing the duration of indwelling as soon as possible and using antibaotics properly according to germiculture and sensibility.