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UMBRELLA INFERIOR VENA CAVA FILTER RETRIEVAL DEVICE
专利权人:
Cook Medical Technologies LLC
发明人:
David Hagan
申请号:
US14199473
公开号:
US20140277086A1
申请日:
2014.03.06
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A device for retrieval of a vena cava filter is provided. The retrieval device has, approximately, an umbrella shape and consists of a central shaft; a plurality of frame struts, attached to frame strut attachment points on the central shaft and disposed radially about the central shaft; and a plurality of snare wires. The retrieval device has a collapsed configuration for insertion and removal from a blood vessel of a patient and an expanded state for capturing an intravascular filter in the blood vessel of the patient. The plurality of snare wires provides multiple points at which a vena cava filter, particularly one that has become misaligned during deployment or treatment, can be caught. The frame struts can be substantially sinusoidal in shape and made of shape memory metal, such as Nitinol. The snare wires can be made of a biocompatible material such as silk, polyester, polypropylene, or nylon.
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来源网址:
http://www.ckcest.cn/home/

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