Angioplastic method for removing plaque from a vas
Patent 4924863 Issued on May 15, 1990. Estimated Expiration Date: 
May 4, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 4, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3858577 Method and apparatus for high frequency catheter ablation Percutaneous transluminal microwave catheter angioplasty Angioplasty catheter Catheter for balloon angioplasty Patent #: 4808164 InventorApplicationNo. 190179 filed on 05/04/1988US Classes:606/27Heat applicationExaminersPrimary: Hindenburg, MaxAttorney, Agent or FirmInternational ClassA61B 017/36AbstractFatty artherosclerotic plaque, under heat (e.g. by applied microwave radiation) and pressure, is liquified and sucked into the interior of one of two catheters of a catheter arrangement through an aperture therein and then sucked out of a patient's body through the proximal end of the one catheter. The other of the two catheters employs an inflated balloon to press the aperture region of the one catheter firmly against the plaque portion to be removed. Calcified artherosclerotic plaque can be ablated and removed in a similar manner, by substituting ultrasonic energy for heat. | |
