Endometrial ablation method and apparatus
CA 2232726 A1 · Owner: Elliott, James R. · Inventors: Luo, Qiyi; Yackel, Douglass B.; Elliott, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for effecting necrosis of a tissue lining of uterine endometrium, by introducing an applicator comprising a distendable bladder and catheter. The bladder is pre-shaped to approximate the bicornual shape of the uterus and is manufactured from bio-compatible, non-allergenic specification quality material. There are two pre-shaped sizes; one for iparous uteri and; one for parous uteri. The bladder is connected to a catheter that contains a non-metallic spring method to ensure the proper deployment and shaping of the bladder. The bladder is then distended by introducing a heated, by means external to the bladder and catheter, (above 220° F) bio-compatible fluid …
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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 May 22, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2020.
- 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.