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Apparatus, system and methods for measuring a blood pressure gradient
专利权人:
Three Rivers Cardiovascular Systems Inc.
发明人:
Caron, Eric,Bilodeau, Luc,Paquette, Michel
申请号:
AU2012327930
公开号:
AU2012327930B2
申请日:
2012.10.26
申请国别(地区):
AU
年份:
2016
代理人:
摘要:
An apparatus (100), control system (150) and methods are provided for directly measuring a pressure gradient, i.e. by real-time pressure measurements, with particular application for in situ measurement of transvalvular blood pressure gradients for the aortic valve and other heart valves, using minimally-invasive techniques. The apparatus takes the form of a multi-sensor assembly, e.g. enclosed within a micro-catheter or a steerable guidewire, and comprises a plurality of optical pressure sensors (10) is arranged along a length of the distal end portion (101), for measuring pressure simultaneously at each sensor location. For example, four MOMS optical pressure sensors (10), and optionally, a flow sensor (20), are incorporated into a distal end portion (101) having a diameter of 0.89 mm or less, and preferably 0.46 mm or less. Beneficially, all sensors are optically coupled, via respective optical fibers (11), to an optical coupler (112) at the proximal end of the multi-sensor apparatus, without requiring electrical connections.
来源网站:
中国工程科技知识中心
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