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Endoscope apparatus

  • US 4,869,256 A
  • Filed: 04/21/1988
  • Issued: 09/26/1989
  • Est. Priority Date: 04/22/1987
  • Status: Expired due to Term
First Claim
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1. An endoscope apparatus comprising:

  • an endoscope including and elongated inserting section having an illumination window and an observation window at a distal end portion thereof, illuminating means for allowing illumination light to emerge from said illumination window, imaging means for forming an optical image of an object upon receiving light which is radiated through said observation window after being reflected from said object, and an ultrasonic probe disposed at said distal end portion of said inserting and obtaining an ultrasonic image of said object;

    optical-image signal processing means for signal processing for said imaging mean and for generating a video signal of said optical image, said optical-image signal processing means having an optical image memory means for storing said optical image;

    ultrasonic-image signal processing means for processing a signal for said ultrasonic probe and for generating a video signal of said ultrasonic image, said ultrasonic-image signal processing means having an ultrasonic image memory means for storing said ultrasonic image; and

    memory control means for controlling writing and reading by said optical image memory means and said ultrasonic image memory means, for simultaneously outputting a video signal for displaying a moving ultrasonic image and a video signal for displaying a still optical image when a moving ultrasonic image is viewed and for simultaneously outputting a video signal for displaying a moving optical image and a video signal for displaying a still ultrasonic image when a moving optical is viewed.

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