Tracheostomy tube with ring pull removable inner cannula
CA 1289840 C · Owner: Labombard, Denis · Inventors: Labombard, Denis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A removable inner cannula is provided with grooved-ribbed locking member end for snap-fit interconnection inside an outer cannula. The inner cannula includes a ring-pull grasping member associated with the locking member which is easily accessible for withdrawal of the inner cannula from the outer cannula connection.
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
- Granted October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
- 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.