05792044 is referenced by 527 patents and cites 59 patents.

Devices and methods for performing percutaneous spinal surgery under direct visualization and through a single cannula are shown. A device (10) is provided which includes an elongated cannula (20) having a first inner diameter (D.sub.I) and an outer diameter (D.sub.O) sized for percutaneous introduction into a patient. The cannula (20) defines a working channel (25) between its ends (21, 22) which has a second diameter (D.sub.2) equal to the diameter (D.sub.I) of the cannula sized for receiving a tool therethrough. An elongated viewing element (50) is engageable to the cannula (20) adjacent the working channel (25), preferably by a fixture (30). The fixture (30) includes a housing (31) attachable to the proximal end (22) of the cannula (20) that defines a working channel opening (35) which is in communication with the working channel (25). The housing (31) also defines an optics bore (60) adjacent the working channel opening (35). In certain embodiments, the fixture (30) supports the viewing element (50) for translation and/or rotation within the optics bore (60) along the longitudinal axis of the bore, and for rotation of the housing (31) relative to the cannula (20) so that the longitudinal axis of the optics bore (60) will rotate about the longitudinal axis of the working channel (25). Methods are also provided for performing spinal surgeries percutaneously with direct visualization and without the requirement for a fluid-maintained workspace.

Title
Devices and methods for percutaneous surgery
Application Number
8/620933
Publication Number
5792044
Application Date
March 22, 1996
Publication Date
August 11, 1998
Inventor
Joseph Moctezuma
Memphis
TN, US
John B Clayton
Germantown
TN, US
Maurice Mell Smith
Cordova
TN, US
Kevin Thomas Foley
Germantown
TN, US
Agent
Woodard Emhardt Naughton Moriarty & McNett
Assignee
Danek Medical
TN, US
IPC
A61B 1/04
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