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Clampless aortic punch system for making a large-diameter access route without side-biting clamp: a preliminary study
This study aimed to present the results of our preliminary study on the clampless aortic punch system (APS). The swine aorta was used as experimental specimen (diameter 16 –20 mm). A 10-mm collagen-impregnated knitted Dacron graft was anastomosed to the aorta, and the APS was inserted into it. After piercing the aorta with the inner fish hook of the APS, the aortic wall was scooped out by an outer round cutter. Three different-angled cutters (0°, 15°, and 30°) w ere tested three times. The diameter of the punched-out lesion ranged from 6 to 9 mm (median 8 mm). Macroscopically, no major vessel injuries were seen 15Â...
Source: Journal of Artificial Organs - January 5, 2019 Category: Transplant Surgery Source Type: research

Flow Performance of the CorWave LVAD Membrane Wave Pump
Implantable long-term blood pumps currently available or in development employ high speed rotary impellers. Use of these devices is currently limited due to relatively high rates of stroke, bleeding complications and infection. A new blood pump technology is under development inspired by the swimming motion of a fish. High frequency, low amplitude linear actuation creates a wave motion on a polymer membrane, gently pushing the blood through the pump. This approach offers a less damaging method for pumping blood, provides full physiologic pulsatility and can operate efficiently over a wide range of operating conditions.
Source: The Journal of Heart and Lung Transplantation - March 31, 2018 Category: Transplant Surgery Authors: C.N. Botterbusch, P. Monticone, L. Polverelli Source Type: research