Methods and instrumentation for vertebral interbody fusion
CA 2361069 A1 · Owner: Estes, Bradley T. · Inventors: Ray, Eddie F. Iii; Estes, Bradley T.; Burkus, J. Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and instrumentation particularly adapted for disc space preparation from an anterior approach to the spine. The invention provides an improved guide sleeve (100) defining a channel (130)having overlapping cylindrical working channel portions (107, 109) and lateral non-distracting extensions extending from reduced thickness wall portions. The guide sleeve (100) has an overall reduced width configuration adjacent the distal end due to the overlapping working channel portions (107 109) and reduced thickness wall , portions. A pair of distractors are provided. A first distractor (50) includes a shaft (54) and distal tip (56), each having convex walls (64 66). A second , …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.