Highly Stretchable Microflow Sensor for Monitoring of Hemodynamics
![Highly Stretchable Microflow Sensor for Monitoring of Hemodynamicsaf Woon-Hong Yeo](https://cdn4.tales.dk/thumbnail/200x0/img/no-photo-available.jpg)
- Indbinding:
- Paperback
- Sideantal:
- 52
- Udgivet:
- 10. Oktober 2018
- Størrelse:
- 150x4x220 mm.
- Vægt:
- 96 g.
- 2-3 uger.
- 1. Oktober 2024
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- Adgang til 70.000+ titler
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Abonnementet koster 75 kr./md.
Ingen binding og kan opsiges når som helst.
Beskrivelse af Highly Stretchable Microflow Sensor for Monitoring of Hemodynamics
Random weakening of an intracranial blood vessel results in abnormal blood flow into an aneurysmal sac. Recent advancements show that a flow-diverter, integrated with a medical stent, enables a highly effective treatment of cerebral aneurysms by guiding blood flow into the normal vessel path. None of such treatment systems, however, offers post-treatment monitoring to assess the progress of sac occlusion. Therefore, physicians rely heavily on either angiography or magnetic resonance imaging, which require a dedicated facility with sophisticated equipment and time-consuming procedures. Here, this work introduces an implantable, stretchable, nanostructured flow-sensor system for quantification of intra-aneurysmal hemodynamics. The open-mesh membrane device is capable of effective implantation in complex neurovascular vessels with extreme stretchability (500% radial stretching) and bendability (180 degrees) for monitoring of the treatment progress. In vitro demonstrations of three types of flow-sensors show quantification of intra-aneurysmal blood flow in a pig aorta and the capability of observation of aneurysm treatment with a great sensitivity (detection limit: 0.032 m/s).
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