Urinary retention catheter
CA 1109351 A · Owner: Kasper, Richard F. · Inventors: Carvalko, Joseph R.; Kasper, Richard F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Disclosed is an improved drainage catheter for insertion into and retention in the bladder of the human body and a, novel stylet for use in inserting the catheter through the urethra and into the bladder. The catheter is formed of an elongate flexible cannula having a free and unobstructed open end adapted to be inserted into the bladder to permit drainage of waste material from the bladder and to facilitate the insertion of diagnostic instrumentation into the bladder. The end of the catheter in the bladder can expand to widen the opening and cause the open end to lie lower in the bladder. The stylet is an elongate flexible member adapted to be inserted into the cannula prior to …
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 September 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 1998.
- 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.