Diagnostic procedures using direct injection of gaseous hyperpolarized 129xe and associated systems and products
CA 2401308 A1 · Owner: Medi-Physics, Inc. · Inventors: Driehuys, Bastiaan; Fujii, Dennis; Hagspiel, Klaus D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of screening for pulmonary embolism uses gaseous phase polarized Xe- 129 which is injected directly into the vasculature of a subject. The gaseous Xe-129 can be delivered in a controlled manner such that the gas substantially dissolves into the vasculature proximate to the injection site. The injectable formulation of polarized Xe-129 gas is presented in small quantities of (preferably isotopically enriched) hyperpolarized Xe-129 and can provide highquality vasculature MRI images or NMR spectroscopic signals with clinically useful signal resolution or intensity. The direct injection of small quantities of gas at particular sites along the vasculature targets specific target …
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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 March 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.