Described gambro hemodialysis reverse osmosis water treatment system can not supply water due to PC PLC failure, the reasons of failure were analysed, troubleshooting methods and procedures were introduced.
Maintenance ; Renal Dialysis ; instrumentation

OBJECTIVE: To analyze the causes leading to hemodialysis machine & accessories faults and to give preventive measures. METHODS: The causes of 34 hemodialysis machine & accessories faults during hemodialysis process were studied through retrospective analysis from January 2017 to June 2018 in our hemodialysis center. RESULTS: The main factors were hemodialysis machine failure, water & electricity failure, dialytic pipeline failure, unstandardized using. The members in hemodialysis center benefited a lot from the faults, The engineers strengthened the preventive repair & quality control of hemodialysis machine, the monitoring of water & electricity. The nursing staff strengthened the quality control of the pipeline and the study of the principle & standard use of hemodialysis machine. CONCLUSIONS The study on hemodialysis machine & accessories faults improved the professional level of nurses & engineers, helped them to solve and prevent faults more precisely and improved the quality of hemodialysis.
Quality Control ; Renal Dialysis ; instrumentation ; Retrospective Studies

This paper introduces the quality control of equipment of hemodialysis center, which includes the wate of hemodialysis, disinfection of the equipment, maintenance, check and calibration of the equipment.
Durable Medical Equipment ; standards ; Quality Control ; Renal Dialysis ; instrumentation

The correlations between various formation conditions and the membrane pore characterizations of the anodic alumina membrane were investigated for seeking the optimal conditions for the formation of anodic alumina membrane. High purity aluminum foils were used as the starting materials. The anodizations were conducted under three types of electrolytes, 3% sulfuric acid, 5% sulfuric acid and 2.7% oxalic acid, respectively, with different voltages at 0 degrees C for 48 hours. The characterizations of the pore size, the effective porosity and the pore porosity were observed and determined by scanning electron microscopy. The hydraulic conductance of the membranes was measured to confirm that the pores were open and to evaluate the permselectivity of the membranes. The experimental results showed that the ordered pore arrays were obtained for oxidation under our experimental conditions. While the forming voltage was increasing, the pore size and pore porosity increased significantly (P < 0.05), and the effective porosity decreased significantly (P < 0.05). The pore size formed with 3% sulfuric acid or 5% sulfuric acid was much smaller than that with 2.7% oxalic acid as an electrolyte. The hydraulic conductance of anodic alumina membrane that formed under our experimental condition was high than those of the membranes currently available in clinical procedures. The results suggested that the optimal conditions for the formation of anodic alumina membrane to be used in hemodialysis should be 3% or 5% sulfuric acid with 12.5 V to 17.5 V at 0 degrees C for 48 hours.
Aluminum Oxide ; Hemodiafiltration ; instrumentation ; Humans ; Membranes ; Membranes, Artificial ; Nanotubes ; Porosity ; Renal Dialysis ; instrumentation

This paper discussed the building of post market risk analysis method in hemodialysis device from the point of government supervision. By proposing practical research methods for post market risk identification and estimation on hemodialysis device, providing technical guidance for government to put risk management of hemodialysis device into effect, and offering reference for enterprises to carry out post market risk evaluation on their products as well.
Government Regulation ; Renal Dialysis ; instrumentation ; standards ; Research Design ; Risk Assessment ; Risk Management

This paper describes, in detail, the basic principles, composition and specifications of JH-2000 heamodialyzer.
Equipment Design ; Humans ; Kidney Failure, Chronic ; therapy ; Renal Dialysis ; instrumentation ; Therapy, Computer-Assisted

Through the hemodialysis machine and water treatment systems maintenance, the result of complications caused by dialysis can be eliminated. It also of extended the life of hemodialysis machines and improve the quality of dialysis.
Equipment Failure ; Equipment and Supplies ; standards ; Humans ; Maintenance ; Renal Dialysis ; adverse effects ; instrumentation ; Water Supply ; standards

Polyethersulfone (PES) hollow fibers were fabricated by dry-wet spinning method for hemodialysis application. The effects of additives polyethylene glycols (PEG) in the dope solution and of fiber thickness and inner diameter fiber on the membrane mechanical characters were investigated. The dialysis tests were conducted by using a simulated solution prepared by dissolving bovine serum albumin (BSA), lysozyme and urea in de-ionized water to test the effects of membrane characters and operating conditions on dialysis efficiency. The results indicated that the reduction of PEG concentration from 27.6 wt% to 24.1 wt% in the dope solution improved the clearance of toxins, but slightly decreased the mechanical characters. The reduction of fiber thickness or fiber inner diameter was found to improve the clearance of toxins by removing 64.2% of lysozyme and 89.4% of urea (membrane area 0.2 m2), whilst BSA retention was found being maintained above 98%. The dialysis efficiency was also noted to increase with the increase in the flow rate of either the simulated or the dialysate solution, or increasing the membrane area. Moreover, The result of a comparison on the clearance of toxins between commercial F60S and PES dialyzers indicated higher dialysis efficiency per area of the fabricated PES membrane.
Biocompatible Materials ; therapeutic use ; Evaluation Studies as Topic ; Membranes, Artificial ; Polyethylene Glycols ; chemistry ; Polymers ; chemistry ; Renal Dialysis ; instrumentation ; methods ; Sulfones ; chemistry

The effect of hemodialysis on the mechanical behavior of a cellulosic Hemophane ME-IOH and one Polysulfone type hollow fibers was investigated. Mechanical tests showed that the deformation of polysulfone type of hollow fibers is entirely different than that of the other dialyser for the samples used and unused in hemodialysis. All the samples exposed to the dialysis showed decreased in ductility. Fracture surface studies proved that there was some alignment on the fracture surface. XRD and DSC experiments revealed structural changes had occurred.
*Biocompatible Materials ; Biomechanics ; *Cellulose/*analogs & derivatives ; Materials Testing ; *Membranes, Artificial ; Microscopy, Electron, Scanning ; *Polymers ; Renal Dialysis/*instrumentation ; *Sulfones ; Surface Properties

A rubber tip disconnection of Arrow-Trerotola percutaneous thrombolytic device (PTD) may occur occasionally. We experienced 5 cases of a rubber tip disconnection among 453 mechanical thrombectomy sessions with the use of PTD. We present a report about these five cases and suggest possible causes for the occurrences.
Aged ; Catheter Obstruction/*etiology ; Equipment Failure Analysis/*methods ; Female ; Humans ; Male ; Middle Aged ; Renal Dialysis/*instrumentation ; Rubber ; Thrombectomy/*instrumentation ; Treatment Outcome