Analgesic syringe
CA 1203135 A · Owner: Rangaswamy, Avvari · Inventors: Rangaswamy, Avvari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A syringe which can be used for multimedication injections also is capable of providing effective precursor local anesthetization for the passage of the syringe needle into a patient. The syringe is constructed so that a first pharmaceutical can be released into a porous needle as the needle is being inserted into a patient. The porous needle is in fixed adjacent proximity with a continuous walled cannula or needle through which a second pharmaceutical can be passed. The first pharmaceutical is generally infused into the patient along the length of the inserted porous needle and therefore into the region which the continuous walled cannula or needle is passed.
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 April 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 2003.
- 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.