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Customizable, self holding, space retracting arthroscopic/endoscopic cannula system
专利权人:
Alan M. Reznik
发明人:
Alan M. Reznik
申请号:
US12662952
公开号:
US08568308B2
申请日:
2010.05.13
申请国别(地区):
US
年份:
2013
代理人:
摘要:
The present invention is directed to a device including an inner cannula having one or more wings or leaflets attached to one end thereof. The wings or leaflets can be cut to length or shaped to facilitate holding the operative field open for optimal visualization and the use of surgical instruments. A shorter, outer cannula is fitted over the inner cannula and a flange attached to the outer cannula is moved from a closed position in which the wings are covered by the inner surface of the cannula or to an open, deployed position in which the wings are opened. The outer cannula may be textured or shaped to aid in holding the desired position. The device also includes a dam or barrier at the end or other convenient location in the inner cannula to control the flow of air or fluids in the cannula as to make it useful in arthroscopic or endoscopic surgery of all types. The wings or leaflets can have mating tapered tips that joint into a single tip when closed or an optional trocar to ease insertion into the desired body cavity. The design allows for manufacture at almost any size to make the device useful in the widest of surgical applications and in all joint or body cavities large or small.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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