Devon David Hansen

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We tested a new rotational thrombectomy catheter in acute thrombi formed both in vitro and in vivo. The catheter consisted of a rounded platinum tip, 0.025 inch diameter by 0.08 inch long, attached to a flexible steel guidewire supported by an external sheath. In vitro, the force required to penetrate thrombus was reduced fivefold by rotation of the(More)
Enhancing situational awareness is a major goal for organisations spanning many sectors, working across many domains. An increased awareness of the state of environments enables improved decision-making. Endsley's model of situational awareness has improved the understanding for the design of decision-support systems. This paper presents and discusses a(More)
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