Ultrasonic equipment and its catheter-type ultrasonic probe
Patent 5273045 Issued on December 28, 1993. Estimated Expiration Date: 
May 22, 2012. 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 22, 2012. 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 ReferencesEndoscopic method & apparatus including ultrasonic B-scan imaging Catheter for removing arteriosclerotic plaque Acoustic imaging catheter and the like Methods and apparatus for the examination and treatment of internal organs Ultrasonic probe having a piezoelectrical element Patent #: 5174296 InventorsApplicationNo. 886816 filed on 05/22/1992US Classes:600/463, With acoustical or display imaging600/447, Electronic array scanning600/467, Intravascular600/585Flexible catheter guideExaminersPrimary: Kamm, William E.Assistant: Manuel, George Attorney, Agent or FirmInternational ClassA61B 008/12Foreign Application Priority Data1991-05-23 JPAbstractAn Ultrasonic Equipment and its Catheter-type Ultrasonic Probe can be inserted in capillaries such as blood vessels, and comprises a catheter-type ultrasonic probe for generating ultrasonic waves by a piezoelectric transducer arrayed at its tip. A plurality of the piezoelectric transducer segments are arrayed on a two-dimensional plane, perpendicular or approximately perpendicular to the insertion direction of the probe into a capillary with their ultrasonic wave emitting surface faced in the insertion direction. A part of the plane is cut out to provide a guide unit for passing a treating catheter or a guide wire in the insertion direction. | |
