SHENER, CEMAL,NEWELL, CHRISTOPHER,HEDSTROM, PETTER,KRAUSE, KENNETH W.
申请号：
CA2578035
公开号：
CA2578035C
申请日:
2005.08.22
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
A surgical system includes a first instrument defining a first channel and asecond instrument receivable by the first channel. The second instrumentdefines a second channel. A valve coupled to the first instrument controlsfluid flow through the first channel, such that impedance of fluid flowthrough the first channel is substantially the same without the secondinstrument received in the first channel and with the first channel partiallyblocked by the second instrument. In another aspect, a surgical apparatusincludes an outer member and an inner member received within the outer memberto define a first channel therebetween. The inner member houses an opticallens and defines a second channel for receiving a surgical instrument. Thefirst and second channels are configured such that a pump having an inflowrate of up to about 0.7 L/min connected to the second channel can maintainfluid pressure inside an organ.
