Endoscopic retrograde cholangiopancreatography(ERCP)is an invasive procedure,which is widely used in the management of pancreas and biliary tract diseases.It may induce complications,such as pancreatitis,bleeding,and ...Endoscopic retrograde cholangiopancreatography(ERCP)is an invasive procedure,which is widely used in the management of pancreas and biliary tract diseases.It may induce complications,such as pancreatitis,bleeding,and perforation.Splenic injury is an extremely rare but life threatening complication.We reviewed the literature,and found that 23 ERCP associated splenic injuries cases had been reported.We discussed the likely mechanism,clinical features,diagnostic modality,and treatment,also shared our experience on a patient who suffered splenic laceration after ERCP and was successfully treated by splenectomy.展开更多
In water-based boundary lubrication regime,the contact gaps(or boundary lubricated film thickness)and surface pressure distribution must be determined to really understand the boundary lubricated contact mechanism.How...In water-based boundary lubrication regime,the contact gaps(or boundary lubricated film thickness)and surface pressure distribution must be determined to really understand the boundary lubricated contact mechanism.However,the accurate determination of these parameters is limited.In this study,a mechanical model based on boundary lubricated contact involving surface force effects is developed.The surface force distribution characteristics,normal force vs.central film thickness curve,and macroscale water-based boundary lubricated contact are investigated numerically.The results show that hydration directly affects surface force interaction.The accurate boundary lubricated film thickness and surface pressure distribution can be obtained using this model in point contact.Furthermore,the mechanism of macroscale water-based liquid boundary lubricated contact is investigated,in which a water-based boundary lubricated film is formed under appropriate operating conditions based on surface force effects during running-in.This study can reveal the water-base boundary lubricated contact behavior and the carrying capacity of the surface force effect,and provides important design guidance for the surface force effect to achieve liquid superlubricity in water-based boundary lubricated contacts.展开更多
基金This work was supported by the Zhejiang Medical Technology&Education Project(2017KY398)the Zhejiang Public Welfare Technology Application Research Project(2017C37149).
文摘Endoscopic retrograde cholangiopancreatography(ERCP)is an invasive procedure,which is widely used in the management of pancreas and biliary tract diseases.It may induce complications,such as pancreatitis,bleeding,and perforation.Splenic injury is an extremely rare but life threatening complication.We reviewed the literature,and found that 23 ERCP associated splenic injuries cases had been reported.We discussed the likely mechanism,clinical features,diagnostic modality,and treatment,also shared our experience on a patient who suffered splenic laceration after ERCP and was successfully treated by splenectomy.
基金This study was financially supported by the National Natural Science Foundation of China(51922058)Natural Science Foundation of Fujian Province(2021J05055).
文摘In water-based boundary lubrication regime,the contact gaps(or boundary lubricated film thickness)and surface pressure distribution must be determined to really understand the boundary lubricated contact mechanism.However,the accurate determination of these parameters is limited.In this study,a mechanical model based on boundary lubricated contact involving surface force effects is developed.The surface force distribution characteristics,normal force vs.central film thickness curve,and macroscale water-based boundary lubricated contact are investigated numerically.The results show that hydration directly affects surface force interaction.The accurate boundary lubricated film thickness and surface pressure distribution can be obtained using this model in point contact.Furthermore,the mechanism of macroscale water-based liquid boundary lubricated contact is investigated,in which a water-based boundary lubricated film is formed under appropriate operating conditions based on surface force effects during running-in.This study can reveal the water-base boundary lubricated contact behavior and the carrying capacity of the surface force effect,and provides important design guidance for the surface force effect to achieve liquid superlubricity in water-based boundary lubricated contacts.
