Surgical fabric with printed x-ray marker
CA 1293601 C · Owner: Denny, Thomas A. · Inventors: Denny, Thomas A.; Papp, Stephen Jr.; Dyer, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Woven and nonwoven fabrics for use in surgical procedures are printed with a radiopaque polymeric composition which bonds to the surface of the fabric. The composition is applied in a visually distinctive pattern, or may assume the pattern of the underlying fabric. The polymeric composition is readily recognized in an X-ray image and provides an improved means for detecting a surgical sponge inadvertently left in a patient. Preferred compositions are latex or plastisols of a printable viscosity containing from 15 to 70% by weight BaSO4 having a particle size greater than about 5 microns.
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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 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.