Results 81 to 90 of about 417,338 (244)

An analysis of central venous catheter-related bloodstream infections in patients treated in a Swedish Covid-19 intensive care unit

SAGE Open Medicine
Background: Catheter-related bloodstream infection is a well-known, severe complication of central venous catheter insertion. Studies that have evaluated the coronavirus disease 2019 pandemic’s influence on the incidence of catheter-related bloodstream ...
Petter Lunnemar, Knut Taxbro, Fredrik Hammarskjöld   +2 more
doaj   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Développement d'un cathéter multimodal visant l'étude de la plaque d'athérosclérose [PDF]

, 2015
RÉSUMÉ: L'objectif de cette thèse est de concevoir et valider un système d'imagerie par cathéter visant l'étude de la plaque d'athérosclérose. L'innovation repose dans l'intégration de plusieurs modalités d'imagerie dans un seul appareil.
Abran, Maxime
core  

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

A technique to retrieve an internalised embedded central venous catheter

CVIR Endovascular
Background Central venous catheters may become embedded due to the formation of adhesions between the indwelling catheter and the vein wall. Case presentation A 49-year-old patient with bacteraemia was referred for retrieval of an embedded internalised ...
John Finnegan, Pradeep Govender
doaj   +1 more source

Efficacité analgésique et tolérance du cathéter périnerveux par voie poplitée dans la chirurgie du pied

, 2004
La chirurgie du pied est extrêmement douloureuse pendant les 48 premières heures postopératoires, entraînant une consommation importante d'antalgiques morphiniques sans réel soulagement des patients.L'intérêt des blocs périnerveux étant démontré, il nous
Pernot, Muriel
core  

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

A cross-sectional study on non-infectious dysfunction of hemodialysis cuffed catheter [PDF]

Caspian Journal of Internal Medicine
Background: Dialysis cuffed catheter dysfunction results in inadequate dialysis, increased sepsis risk, and a shortened catheter life. It may be possible to prolong catheter function by identifying the causes of cuffed catheter dysfunction. Methods: This
Pouya Tayebi, Kosar Hasanzadeh, Masoumeh Asgharpour, Ali Bijani, Naghmeh Ziaie   +4 more
doaj  

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Examination of Cuffed Catheter Tip Thrombosis in Hemodialysis Patients [PDF]

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul
Background and Objective: The use of cuffed catheters for hemodialysis in patients with chronic kidney failure has increased. Thrombosis of cuffed catheter tip is a dangerous complication that can lead to catheter dysfunction and even threaten the ...
P Tayebi, A Asri, A Gholizadeh-Pasha, R Pourkia, H Shirafkan, F Mahmoudlou, N Ziaie   +6 more
doaj