Ultrasonic device for applying cavitation forces
CA 1303448 C · Owner: Sonic Needle Corporation · Inventors: Ciervo, Donald J.; Alliger, Howard M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ultrasonic device for applying cavitation forces to an unwanted material is provided. The device is particularly useful for removing plaque from a human artery wherein a portion of the device can enter all artery and pass through the artery to the vicinity of the plaque. The device includes a solid wire of titanium material a trandsducer, a generator for, providing vibration energy via the transducer and a handpiece enclosing the, transducer and having a tapered end portion with an exponential surface of slightly concave profile. The tapered end portion is fixedly connected to an inner end of the wire. For human applications the wire has an overall length, in the range of about from 5 …
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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 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.
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.