Will the Hansen Robotic Sensei System For Remotely Controlling Catheters And Guidewires Be Useful For Endovascular Procedures? Can the system be used to aid deployment of stent grafts used to treat an abdominal aortic aneurysm AAA? Does the system provide increased catheter stability and accurate navigation?
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…The Hansen Sensei robotic system allows precise positioning of a steerable catheter tip at a desired point, whilst enabling a physician to remain seated and away from the x-ray radiation source at a remote consule. This system has advantages over conventional catheterisation in that it allows accurate catheterisation of vessels and stable positioning of the catheter for introduction of endovascular tools. We have investigated whether this robotic catheterisation system can increase enhance complex endovascular procedures with a view to improving patient safety and increasing numbers of patients that can undergo endovascular methods of treatment…
…early studies showed that there is an advantage to using the robotic catheterisation system in accessing only complex anatomical configurations, whereas no advantage is seen during simple tasks. In a simplistic model of the aorta with renal arteries arising at 60 and 130 from the aorta, the time and number of movements taken to cannulate vessels was similar using conventional and robotic catheters. The only difference was observed in the 130 model where there was a small difference in median number of movements of the catheter 6.5(4-10.8) for conventional versus 4(2.3- 6.5) for robotic methods (p=0.012). However, there is no radiation exposure to the operator during the procedure using the robotic system. We have further investigated the use of this catheter in specific complex endovascular procedures again using phantom models. We asked ten endovascular specialists (>50 procedures each) to cannulate vessels within CT-reconstructed pulsatile models of Type-I, Type-III aortic arches and a fenestrated graft within a Type-II thoraco-abdominal aneurysm. The procedures were performed with fluoroscopic guidance using conventional and robotic techniques following a standardised training. Cannulation times were recorded and wire/catheter tip movements were assessed by two independent observers (interobserver error- Cronbach’s ·=0.94). The results of this study show that in models, despite minimal robotic catheter operator exposure, procedure times, operator radiation exposure and wire/catheter movements are significantly reduced…These results suggest that complex endovascular procedures may well benefit from the use of a robotic steerable catheter…
…in-vitro studies show that the use of remote, steerable robotic catechniquetheters to cannulate vessels and stent fenestrations is feasible and shows advantages over conventional methods, despite minimal operator exposure to the robotic system. Cannulation of target vessels during fenestrated stent grafting and carotid vessels with a view to stenting may benefit from this…