Distal atherectomy catheter
CA 2063741 A1 · Owner: American Biomed, Inc. · Inventors: Summers, David P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This disclosure sets out a catheter (10) for bodily insertion. The catheter tip supports an elongate hollow housing (14) with a window (82) for occlusive material cutting a cutter head (86) on, the interior rotates driven by a drive wire (46) in the hollow catheter tube. In addition, the cutter head (86) reciprocates or oscillates to cut on its back edge, the edge trimming material entering through the window (82). The window and optional slots admit the unwanted material and enable trimming for a vacuum removal through the catheter tube. The window (82) is urged into contact by a pair of flexed wires (98), the wires moving the housing into operative contact.
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
- Filed July 23, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2012.
- 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.