Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2011-04-19
2011-04-19
Robert, Eduardo C (Department: 3733)
Surgery
Instruments
Orthopedic instrumentation
C606S079000, C606S08600R
Reexamination Certificate
active
07927361
ABSTRACT:
Instrument and method for removing material from an intervertebral disc. The instrument includes outer and inner tubular members. The outer tubular member defines a passage and a cutting window. The inner tubular member is coaxially disposed within the passage, and defines a central lumen and a cutting tip. The cutting tip forms an open mouth having a plurality of teeth. Upon assembly, the cutting tip is exposed within the cutting window combining to define a shaving head. A powered handpiece is coupled to the inner tubular member, and the shaving head is inserted into an intervertebral disc and positioned such that the cutting tip contacts targeted material (e.g., nucleus, annulus and/or end plate). The handpiece is activated to rotate the cutting tip relative to the cutting window. Contacted material is sheared between an edge of the cutting window and the teeth of the cutting tip.
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The PCT International Search Report mailed Mar. 15, 2007 (7 pgs.).
Adams Kenneth M.
Francis Tom J.
Oliver Dana A.
Dicke Billig & Czaja, PLLC
Medtronic Xomed, Inc.
Merene Jan Christopher
Robert Eduardo C
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