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Tissue resecting system
专利权人:
发明人:
Cemal Shener-Irmakoglu,Christopher R. Newell,Petter Hedstrom,Kenneth W. Krause
申请号:
US13860654
公开号:
US08852085B2
申请日:
2013.04.11
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A surgical system includes a first instrument defining a first channel and a second instrument receivable by the first channel. The second instrument defines a second channel. A valve coupled to the first instrument controls fluid flow through the first channel, such that impedance of fluid flow through the first channel is substantially the same without the second instrument received in the first channel and with the first channel partially blocked by the second instrument. In another aspect, a surgical apparatus includes an outer member and an inner member received within the outer member to define a first channel therebetween. The inner member houses an optical lens and defines a second channel for receiving a surgical instrument. The first and second channels are configured such that a pump having an inflow rate of up to about 0.7 L/min connected to the second channel can maintain fluid pressure inside an organ.
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