1.Development of Five-classification Technology in Hematology Analysis
Chinese Medical Equipment Journal 1993;0(06):-
The comprehensive analysis and comparison of the application and the technical character of a variety of hematology analyzer widely used in China's medical institutions is proposed on the basis of an introduction to the principle and technical features involved in the five-classification technology of the hematology analyzer, and the combined analysis on behalf of the five-classification technology is focused in above. Finally, the development trend of the hematology analyzer is summarized.
2.Species and characteristics of protein adsorption on reused hemodialysis membranes.
Yujing YANG ; Xiulin XU ; Xinhua WANG ; Gendi ZHU
Journal of Biomedical Engineering 2009;26(1):67-71
The aim of this study was to systemically analyze the proteins that adsorbed on the surface of hemodialysis membrane. The Fresenius F6 reused polysulfone dialyzers were selected as the research objects. The methodology we used encompassed the digestion of protein in rinsed solution and the separation of peptide mixture in virtue of RP-HPLC followed by ESI-MS/MS identification in orde to get their adsorption behavior, species and characteristics. The results illustrated that, after being rinsed by reverse osmosis (RO) water, 179 species of the protein adsorbed on the hemodialysis membrane, most of which were acidulous and middle or small weight protein molecules. The data from counting the numbers of peptides showed there were 5 species of high-abundant proteins (the contents being above 5% each), namely Ficolin-2 precursor, Complement C3 precursor (Fragment), Mannan-binding lectin serine protease 1 isoform 2 precursor, Complement-activating component of Ra-reactive factor precursor, and Mannan-binding lectin serine protease 1 isoform 3. These proteins are in close relationship with human immune system; moreover, they are of great significance to the clinical mechanism for cleaning reuse hemodialyzers and to the development of new hemodialysis materials.
Adsorption
;
Complement C3
;
analysis
;
Equipment Reuse
;
Humans
;
Lectins
;
analysis
;
Mannose-Binding Protein-Associated Serine Proteases
;
analysis
;
Membranes, Artificial
;
Renal Dialysis
;
instrumentation
3.Ingredients of membrane adhesion in reused dialyzer.
Xiulin XU ; Yujing YANG ; Gendi ZHU ; Xiaohong FAN
Journal of Biomedical Engineering 2007;24(5):1107-1110
Selecting reused polysulfone membrane (PSM) dialyzers as research objects, we mainly analyzed quantitatively the adhesion ingredients which obstructed the passage through the membrane, and we investigated the differences of residual contaminants on the surface of PSM in the cases of various reuse times. The results illustrated that after the completion of dialysis, the dialyzer was first cleaned by reverse osmosis (RO) water to remove the protein adsorpted. Then we used 2% sodium hypochlorite (NaClO) solution to soak it, and the glucose, cholesterol and triglyceride adsorpted were dissolved off. Meanwhile, the quantity of most of adsorption gradually increased with the increase of reuse times.
Adsorption
;
Adult
;
Cholesterol
;
analysis
;
Equipment Reuse
;
Female
;
Glucose
;
analysis
;
Humans
;
Male
;
Membranes, Artificial
;
Middle Aged
;
Polymers
;
Proteins
;
analysis
;
Renal Dialysis
;
adverse effects
;
instrumentation
;
Sulfones
;
Triglycerides
;
analysis
4.Research status and inspiration on decision-making dilemmas on family members of intensive care unit patients
Chinese Medical Ethics 2024;37(2):168-176
Due to the particularity of the Intensive Care Unit(ICU)environment,the visiting time of family members is strictly limited,resulting in family members being unable to communicate with patients in time to understand their wishes and preferences.Moreover,the sudden onset of the diseases and clinical uncertainty can easily lead to ambivalence among family members in decision-making,leading to decision-making dilemmas.This paper reviewed the concepts,assessment tools,causes,effects,and coping strategies of decision-making dilemmas for family members of ICU patients,with a view to providing a theoretical basis for future intervention in decision-making dilemmas for family members of ICU patients,improving their quality of agency decision-making,shortening patient hospitalization time,improving the health outcomes of patients,and ultimately increasing the satisfaction of medical and nursing.