Surgery – Instruments
Reexamination Certificate
2011-08-30
2011-08-30
Bui, Vy Q (Department: 3773)
Surgery
Instruments
C606S198000, C606S191000
Reexamination Certificate
active
08007492
ABSTRACT:
A cannula (10) for receiving surgical instruments for performing a surgical procedure on a body includes a tubular structure (12) defining a passage (16) through which the surgical instruments are inserted into the body. The tubular structure (12) includes an expandable portion (40) for enabling an increase in the cross-sectional area of the passage (16). The expandable portion (40) of the tubular structure (12) has a slot (100) and a guide member (114) disposed in the slot. The guide member (114) is movable from a first end (102) of the slot (100) toward a second end (104) of the slot to enable the cross-sectional area of the passage (16) to increase. The expandable portion (40) has a stop (106) between the first and second ends (102and104) of the slot (100) engageable with the guide member (114) to retain the guide member in a position relative to the slot and resist movement of the guide member from the position relative to the slot.
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DiPoto Gene P.
Shluzas Alan E.
Bui Vy Q
Seager Tufte & Wickhem LLC
Zimmer Spine, Inc.
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