Composite ophthalmic microcannula
CA 2554257 C · Owner: Kupiecki, David J. · Inventors: Christian, Jeffrey; Mckenzie, John; Kupiecki, David J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Microcannulae are constructed with multiple components in a composite design allowing the microcannulae to have varying mechanical and delivery properties that will enable ophthalmic treatments by minimally invasive means. The microcannula includes at least one flexible tubular communicating element (9) , with an outer diameter of 350 microns or less a proximal connector for , introduction of materials energy or tools. It may also include a reinforcing member attached to the communicating element which may be designed to create , variable stiffness along the length of the microcannula. The microcannula may also include other features such as a signal beacon near the distal tip.
Read the whole patent
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 January 24, 2005 and granted November 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.