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Expired Canadian patentCanada

Mechanical atherectomy system

CA 1299953 C · Owner: Shiber, Samuel · Inventors: Shiber, Samuel

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A rotary catheter is insertable into a patient's blood vessel for remotely cutting and removing an obstruction therein. The catheter comprises a flexible tube with front and rear ends and insertable into the blood vessel. A tubular blade is mounted to the front end of the tube. The tubular blade defines a through-hole forming with the flexible tube a continuous passage for passing obstruction material which is ingested into the hole into flex-, ible tube. Means are connected to the rear end of said tube for rotating the flexible tube and the tubular blade.

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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 May 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 16, 1987
GrantedMay 5, 1992
Term endedMay 5, 2009
Patent numberCA 1299953 C
Classification (IPC)A61B17/22 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 16, 1987Patent grantedMay 5, 1992Term endedMay 5, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.