G - Physics – 02 – B
Patent
G - Physics
02
B
88/15, 88/16
G02B 21/20 (2006.01) A61F 9/00 (2006.01) G02B 21/00 (2006.01) A61B 17/04 (2006.01)
Patent
CA 1091490
ABSTRACT OF THE DISCLOSURE A surgical microscope apparatus for use while suturing an incis- ion in the cornea for configuring the cornea to a spherical surface having a radius of curvature of a predetermined magnitude is disclosed. The micro- scope system includes a light source for projecting an image onto the cornea and prisms for optically splitting the image on the cornea into a plurality of images within the surgical field of view for viewing through the binocular eyepieces. The optical system can be adjusted to orient the images into a predetermined alignment and configuration indicative of the radius of cur- vature, the alignment and configuration occurring when the cornea sutures are tensioned correctly to indicate a spherical surface of the predetermined radius of curvature. The prisms are so-positioned to permit a portion of the surgical field of view to pass through the microscope undeviated to enable the surgeon to utilize the necessary suturing tools without multiple images of the tools. In a first embodiment a fixed location prism array is utilized for optically splitting the image and the optical system is adjusted by varying the magnification powers of the microscope. In a second embodiment, rotary prisms are in a fixed position within the optical path for optically splitting the image and the optical system is adjusted by varying the prism power.
304042
Smart & Biggar
Terry Clifford M.
LandOfFree
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