Sealed magnetic drive means without a passage through a wall and ultrasound probe comprising an application thereof
Patent 5357963 Issued on October 25, 1994. Estimated Expiration Date: 
March 23, 2013. 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.
March 23, 2013. 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 3199362 3573517 Ultrasonic scanning apparatus Hand held device with built-in motor Transducer drive assembly Ultrasonic endoscope Patent #: 4732156 InventorsAssigneeApplicationNo. 035929 filed on 03/23/1993US Classes:600/446, Hand-held unit74/26Head motionsExaminersPrimary: Jaworski, Francis J.Attorney, Agent or FirmForeign Patent References
International ClassesA61B 008/00F16H 021/40 Foreign Application Priority Data1992-03-23 FRAbstractThe invention relates to a magnetic drive device enabling a member placed one side of a non-magnetic wall to be driven by a rotary drive shaft placed on the other side of the wall. The driven member is mounted to rock about an oscillation axis orthogonal to the axis of rotation of the drive shaft and carries an axially-magnetized magnet whose outside surface has a right cross-section in the plane containing the oscillation axis and the axis of rotation of the drive shaft that is in the form of a circle centered on the oscillation axis. The drive shaft carries an axially-magnetized magnet offset from the axis of the drive shaft. | |
