Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2000-08-01
2003-03-11
Reip, David O. (Department: 3731)
Surgery
Instruments
Orthopedic instrumentation
C606S075000, C604S264000
Reexamination Certificate
active
06530926
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a method of fixing vertebrae of a patient together at a surgical site.
BACKGROUND OF THE INVENTION
Percutaneous surgery is a procedure in which surgical instruments and an endoscope are inserted through a cannula into the body of a patient. A viewing element, typically a small video camera, is part of the endoscope and is connected to a monitor so that the surgeon may view the surgical site.
The cannula is a hollow tube that is inserted through an incision into the body of a patient so that a distal end of the cannula lies adjacent the surgical site. The instruments, usually one at a time, and the endoscope are inserted through the cannula. The cannula also allows the instruments and endoscope to be removed from the body and/or adjusted in the body during the surgery without trauma to the body.
A conventional apparatus for supporting the cannula and the endoscope allows a surgeon to manipulate the surgical instruments without also moving the endoscope. Also, a known support apparatus allows adjustment of the endoscope relative to the cannula for viewing different areas of the surgical site in the body.
While the above described apparatus enables many types of surgeries at small surgical sites, the fixing of vertebrae together has heretofore been conducted by a much more invasive open surgical method.
SUMMARY OF THE INVENTION
In accordance with the present invention, a method of fixing vertebrae of a patient together at a surgical site includes the following steps: inserting a first cannula into the body of the patent; moving a first fastener through the cannula and securing the first fastener to a first vertebrae; moving a second fastener through the cannula and securing the second fastener to a second vertebrae; moving a first fixation element through the cannula; and fixing the first fixation element to the first and second fasteners.
REFERENCES:
patent: 4617929 (1986-10-01), Gill
patent: 5171279 (1992-12-01), Mathews
patent: 6306170 (2001-10-01), Ray
Endius Incorporated
Reip David O.
Tarolli, Sundheim Covell & Tummino L.L.P.
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