ABSTRACT
In order to evaluate the efficacy and safety of Hexue Mingmu tablets in the treatment of diabetic retinopathy（DR） and retinal vein obstruction（RVO）， and to provide a basis for the clinical treatment of ophthalmic diseases， this paper obtained randomized controlled trials（RCTs） of Hexue Mingmu tablets in the treatment of DR and RVO by searching Chinese and English electronic databases and trial registration platforms（up to September 13， 2022）. The risk of bias in the included studies was assessed using RoB2.0， and Meta-analysis was performed using RevMan5.4. A total of 35 RCTs involving a total sample size of 3 261 patients were included. Meta-analysis results showed that compared with conventional western medical treatment alone， the combination of Hexue Mingmu tablets with conventional western medical treatment improved patients' macular thickness｛mean difference（MD） =-39.83， 95% confidence interval（CI） ［-51.60， -28.06］， P<0.000 01｝， improved corrected visual acuity｛risk ratio（RR）dichotomous=1.09， 95% CI ［1.00， 1.18］， P=0.04； MDcontinuous variable=0.15， 95% CI ［0.13， 0.17］， P<0.000 01｝， increased effective rate of fundus symptom improvement（RR=1.26， 95% CI ［1.22， 1.30］， P<0.000 01）， improved hemorheology index｛standard mean difference（SMD）=-1.53， 95% CI ［-2.04， -1.01］， P<0.000 01｝， shortened improvement time of fundus symptoms（MD=-5.53， 95% CI ［-5.96， -5.09］， P<0.000 01）， and there was no significant difference on adverse events between the two groups. The results show that treatment of DR and RVO with Hexue Mingmu tablets may improve the macular thickness and hemorheology index of patients， which can significantly enhance the effect of corrected visual acuity and clinical efficiency， and shorten the time to symptom improvement. However， the original literature is of low quality and the pooled results have some limitations. Subsequent studies should try to use uniform standard assessment criteria and testing methods， focus on the rigor of study design and implementation， and pay attention to the key outcomes of this disease and the clinical safety of medication， so as to provide more reliable evidence to support this kind of clinical problems.
ABSTRACT
The system planning of characteristic education in biomedical engineering was performed,in which such ideas were raised as clear-cut cultivation target,self-contained curricula system and flexible experimental technique.The system planning provided systematic knowledge structure and the induction from theory to practice for undergraduates in 5 majors in our school.Based on this system planning,the teaching quality is improved.
ABSTRACT
A software system of the pulse oximeter is presented in this paper. Based on Franklin C, this software system includes three main parts, one part is to automatically regulates the base line of signal, the second part is a controlled integral module,and the third part is a digital signal processing module. As the result, the pulse oximeter is satisfactory to clinical monitoring.
ABSTRACT
To enhance the quality project,there are four ways to ensure the quality of the undergraduate thesis and project.The first way is to inaugurate new bases: from school to company.The second is a wide choice of projects.The third way is that the project can be taken ahead of schedule.Finally,two tutors are designated to ensure the quality of thesis.