Sternum retractor
CA 1069789 A · Owner: Codman And Shurtleff · Inventors: Reimels, Harry G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sternum retractor for use in open-heart and other thoracic surgery having a generally Ushaped frame formed from an arm support a, stationary arm and a movable arm. The movable arm is secured to a carriage having a rotatable pinion which effects movement of the arm by mating with a rack that is integral with the arm support. Inwardly facing blade supports are pivotally attached at a single selected location along the length of each arm and a plurality of retractor blades are secured in spaced relation on each of the blade supports. The blade supports and retractor blades are preferably formed from a radiotransparent plastic material.
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 January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 1997.
- 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.