Crossing Total Occlusions using a hydraulic pressure wave: a feasibility study
نویسندگان
چکیده
منابع مشابه
Crossing Total Occlusions: Navigating Towards Recanalization
Chronic total occlusions (CTOs) represent the "last frontier" of percutaneous interventions. The main technical challenges lies in crossing the guidewire into the distal true lumen, which is primarily due to three problems: device buckling during initial puncture, inadequate visualization, and the inability to actively navigate through the CTO. To improve the success rate and to identify future...
متن کاملEndovascular Crossing of Chronic Total Occlusions Using an Impulse: An Explorative Design Study
In this study we investigated whether exerting an impulse on a Chronic Total Occlusion (CTO) improves the success rate of CTO crossing as compared to the currently used method of statically pushing the guidewire against the CTO. A prototype (Ø2 mm) was developed that generates translational momentum using a spring-loaded indenter and converts it to an impulse during impact. Mechanical performan...
متن کاملRecanalization of total coronary occlusions using a laser guidewire (the European TOTAL Surveillance Study).
The success rates of coronary angioplasty for the treatment of chronic total occlusions are less favorable than for coronary stenosis. Therefore, a new laser guidewire (LW) was designed to facilitate the crossing of chronic total occlusions. We report on the results of a European multicenter surveillance study, evaluating the laser guidewire performance. Between May 1994 and July 1996, 345 pati...
متن کاملMeasuring Pressure Wave Velocity in a Hydraulic System
Pressure wave velocity in a hydraulic system was determined using piezo pressure sensors without removing fluid from the system. The measurements were carried out in a low pressure range (0.2 – 6 bar) and the results were compared with the results of other studies. This method is not as accurate as measurement with separate measurement equipment, but the fluid is in the actual machine the whole...
متن کاملRecanalization of chronic total coronary occlusions using a laser guide wire: a pilot study.
OBJECTIVES This study sought to prospectively evaluate the performance of a laser guide wire in crossing chronic total coronary occlusions in patients with a failed previous mechanical guide wire attempt. BACKGROUND Despite continued refinement of mechanical hardware available for coronary angioplasty, restoration and maintenance of blood flow through a chronically occluded coronary artery re...
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ژورنال
عنوان ژورنال: Biomedical Physics & Engineering Express
سال: 2018
ISSN: 2057-1976
DOI: 10.1088/2057-1976/aad44a