RESUMEN
Based on the circuit board, we draw its circuit diagram. By analyzing the circuit diagram, we maintain medical device power supply and achieve the troubleshooting goal quickly.
Asunto(s)
Equipo Médico Durable , Suministros de Energía Eléctrica , MantenimientoRESUMEN
For the conventional high frequency(HF) surgical equipment, the contact impedance between the two back electrodes when they are gluing with skin is 50-200 Omega. If the contact impedance between the two electrodes is either too large or too small, an alarm is needed. This detector is designed not only to detect the contact condition between skin and the back electrodes, but also to monitor and alarm the dynamic change of the contact impedance. It effectively prevents the potential damage to medical staff when the back electrodes of the double-loop HF surgical equipment is moved during operation. Thus, this design enhances the safety of HF surgical equipment in clinical use.
Asunto(s)
Impedancia Eléctrica , Electrodos , Diseño de Equipo , Monitoreo Fisiológico , Fenómenos Fisiológicos de la Piel , Equipo QuirúrgicoRESUMEN
Objective Our objective was to design a new type of bedpan (inflatable, bed urinal) and compare its effect with common bedpan. Methods We divided 144 patients with bone fracture and lying in bed into the test group and the control group with 72 cases in each group from May 2006 to February 2007. Inflatable bed urinals were used in the test group and common bedpans were used in the control group. The pain alleviation, comfort degree, staining of bed sheet and skin injury were observed and evaluated in each group. Results Application of inflatable bed urinal was superior to common bedpan in the following aspects: alleviation of pain, comfort degree, staining of bed sheets and skin injury. Conclusions Adoption of inflatable bed urinal could alleviate pain, prevent the incidence of complication and reduce the workload of nurses.