Friction behavior between endoscopy and esophageal internal surface

Lin, Chengxiong; Yu, Qingtao; Wang, J.; Ji, Weidu; Li, W.; Zhou, Zuowan

doi:10.1016/j.wear.2016.11.011

Cited by 18 publications

(13 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the velocity dependence shown in Fig. S1(df), it's also a common trend for friction model of soft tissue [52][53][54] . It's mainly because deformation and recovery along with energy dissipation when the catheter sliding on the surface of aorta.…”

Section: Vol:(0123456789)mentioning

confidence: 62%

See 1 more Smart Citation

Role of endothelial glycocalyx in sliding friction at the catheter-blood vessel interface

Lin

Kaper

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Catheterization is a common medical operation to diagnose and treat cardiovascular diseases. The blood vessel lumen is coated with endothelial glycocalyx layer (EGL), which is important for the permeability and diffusion through the blood vessels wall, blood hemodynamics and mechanotransduction. However EGL's role in catheter-blood vessel friction is not explored. We use a porcine aorta to mimic the blood vessel and a catheter loop was made to rub in reciprocating sliding mode against it to understand the role of catheter loop curvature, stiffness, normal load, sliding speed and EGL on the friction properties. Trypsin treatment was used to cause a degradation of the EGL. Decrease in catheter loop stiffness and EGL degradation were the strongest factors which dramatically increased the coefficient of friction (COF) and frictional energy dissipation at the aortacatheter interface. Increasing sliding speed caused an increase but increase in normal load first caused a decrease and then an increase in the COF and frictional energy. These results provide the basic data for safety of operation and damage control during catheterization in patients with degraded EGL. Cardiovascular diseases (CVDs) are a group of disorders of the heart and blood vessels 1. Although the incidence and the mortality rate of CVDs has decreased 2-5 , they still remain a leading cause of death all over the world according to the world health organization. In 2016, 17.9 million people died due to CVDs which was 31% of all global deaths 6. The decline in CVD deaths is due to the health awareness and lifestyle changes but also due to the effective diagnosis and intervention. Minimally invasive transcatheter cardiovascular interventions are the most popular operations with about 200 million endovascular catheterizations taking place every year 7. Often radial (forehand) or femoral (thigh) artery is chosen for catheter insertion. For the catheter to reach the vicinity of the heart, it commonly requires a catheter of 100 cm in length. Depending on the pathogenesis, a catheter may spend a few seconds to few days in vivo for diagnosis and treatment 8,9. Both the insertion of catheter and intervention requires continuous sliding contact between the catheter and the lumen of the blood vessels. A thin (~ 500 nm), gel-like endothelial glycocalyx layer (EGL) is present on the luminal side of the blood vessel. The EGL on the luminal surface of the aorta mainly consists of mesh of membrane bound proteoglycans e.g. syndecan-1 and glypican containing chondroitin sulfate and heparin sulfate side chains and secreted glycosaminoglycans like hyaluronic acid and associated plasma proteins 10-12. The polyanionic nature of these molecules provides an overall negative charge to the EGL 11 which plays an important role in protection, regulation, diffusion and antiadhesion 13,14 on the luminal surface of blood vessel. The EGL is delicate and the degradation of glycocalyx structures was found to occur after provocation with inflammatory and atherogenic stimuli, such as TNF...

show abstract

Section: Vol:(0123456789)mentioning

confidence: 62%

“…S1 and S3). The negative correlation between the COF and normal load was a commonly observed phenomenon for soft tissue, such as skin 48,49 , intestine 50,51 and esophagus 30,52 . It's mainly due to soft, irregular and rugged nature of the tissue surface which is rich in water and other liquids e.g.…”

Section: Vol:(0123456789)mentioning

confidence: 85%

Role of endothelial glycocalyx in sliding friction at the catheter-blood vessel interface

Lin

Kaper

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The residual stresses of the esophagus tissue under physiological loading conditions were not considered for this comparative study [26]. The friction coefficient of 0.1 was adopted for the contact between the stent wires and tissue [27]. The mesh convergence study was conducted, and the esophagus and tumor was meshed with 125,000 and 21,456 elements (C3D8R), respectively.…”

Section: Methodsmentioning

confidence: 99%

Migration resistance of esophageal stents: The role of stent design

Mozafari

Dong

Zhao

et al. 2018

Computers in Biology and Medicine

View full text Add to dashboard Cite

show abstract

“…As a result, thoroughly understanding the micromechanical properties of the oesophagus is crucial for disease diagnosis. Furthermore, the study of oesophagus‐endoscope interaction contributes to the design of endoscope materials and coatings for medical devices [9, 10].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, current research concerning the mechanical properties of the oesophagus mainly focused on macroscale experiments, including tensile tests [16–18], inflation tests [19] and friction tests [9, 10]. Yang et al [18] studied the uniaxial tensile properties of the oesophagus in different regions, layers and directions and established a fibre‐reinforced constitutive model.…”

Section: Introductionmentioning

confidence: 99%