There is a currently a lack of large-area plasma sterilization devices that can intelligently identify the shape of a wound for automatic steriliza-tion.For this reason,in this work,a plasma sterilization device with ...There is a currently a lack of large-area plasma sterilization devices that can intelligently identify the shape of a wound for automatic steriliza-tion.For this reason,in this work,a plasma sterilization device with wound-edge recognition was developed using afield-programmable gate array(FPGA)and a high-performance image-processing platform to realize intelligent and precise sterilization of wounds.SOLIDWORKS was used to design the mechanical structure of the device,and it was manufactured using 3D printing.The device used an improvement of the traditional Sobel detection algorithm,which extends the detection of edges in only the x and y directions to eight directions(0○,45○,90○,135○,180○,225○,270○,and 315○),completing the wound-edge detection by adaptive thresholding.The device can be controlled according to different shapes of sterilization area to adjust the positioning of a single plasma-jet tube in the horizontal plane for two-dimensional move-ment;the distance between the plasma-jet tube and the surface of the object to be sterilized can be also adjusted in the vertical direction.In this way,motors are used to move the plasma jet and achieve automatic,efficient,and accurate plasma sterilization.It was found that a good sterilization effect could be achieved at both the culture-medium level and the biological-tissue level.The ideal sterilization parameters at the culture-medium level were a speed of 2 mm/s and aflow rate of 0.6 slm,while at the biological-tissue level,these values were 1 mm/s and 0.6 slm,respectively.展开更多
<strong>Background:</strong> Herlyn-Werner-Wunderlich syndrome (HWWS) is a rare type of female reproduction tract malformation, often accompanied by abnormal development of the ipsilateral urinary system, ...<strong>Background:</strong> Herlyn-Werner-Wunderlich syndrome (HWWS) is a rare type of female reproduction tract malformation, often accompanied by abnormal development of the ipsilateral urinary system, which shows mostly double uterus and the absence of the kidney on the oblique side. <strong>Case Report:</strong> An 11-year-old patient presented with lower abdominal distension and pain for 2 days and was suspected of vaginal haematoma. <strong>Conclusion:</strong> Ipsilateral renal agenesis was confirmed by ultrasound during hospitalization, and the diagnoses of obstructed hemivagina and ipsilateral renal anomaly syndrome were established. The aim of this study was to present the diagnostic and therapeutic approaches in HWWS, and to draw attention to the challenges in its diagnosis, which can coexist with multiple complications.展开更多
基金supported by:the National Natural Science Foundation of China under Grant Nos.62163009 and 61864001the Natural Science Foundation of Guangxi Province under Grant No.2021JJD170019+1 种基金the Foundation of Guangxi Key Laboratory of Automatic Detecting Technology and Instruments(Guilin University of Electronic Technology)under Grant No.YQ23103the Innovation Project of Guangxi Graduate Education under Grant No.YCSW2022277.
文摘There is a currently a lack of large-area plasma sterilization devices that can intelligently identify the shape of a wound for automatic steriliza-tion.For this reason,in this work,a plasma sterilization device with wound-edge recognition was developed using afield-programmable gate array(FPGA)and a high-performance image-processing platform to realize intelligent and precise sterilization of wounds.SOLIDWORKS was used to design the mechanical structure of the device,and it was manufactured using 3D printing.The device used an improvement of the traditional Sobel detection algorithm,which extends the detection of edges in only the x and y directions to eight directions(0○,45○,90○,135○,180○,225○,270○,and 315○),completing the wound-edge detection by adaptive thresholding.The device can be controlled according to different shapes of sterilization area to adjust the positioning of a single plasma-jet tube in the horizontal plane for two-dimensional move-ment;the distance between the plasma-jet tube and the surface of the object to be sterilized can be also adjusted in the vertical direction.In this way,motors are used to move the plasma jet and achieve automatic,efficient,and accurate plasma sterilization.It was found that a good sterilization effect could be achieved at both the culture-medium level and the biological-tissue level.The ideal sterilization parameters at the culture-medium level were a speed of 2 mm/s and aflow rate of 0.6 slm,while at the biological-tissue level,these values were 1 mm/s and 0.6 slm,respectively.
文摘<strong>Background:</strong> Herlyn-Werner-Wunderlich syndrome (HWWS) is a rare type of female reproduction tract malformation, often accompanied by abnormal development of the ipsilateral urinary system, which shows mostly double uterus and the absence of the kidney on the oblique side. <strong>Case Report:</strong> An 11-year-old patient presented with lower abdominal distension and pain for 2 days and was suspected of vaginal haematoma. <strong>Conclusion:</strong> Ipsilateral renal agenesis was confirmed by ultrasound during hospitalization, and the diagnoses of obstructed hemivagina and ipsilateral renal anomaly syndrome were established. The aim of this study was to present the diagnostic and therapeutic approaches in HWWS, and to draw attention to the challenges in its diagnosis, which can coexist with multiple complications.
