Education and demonstration – Anatomy – physiology – therapeutic treatment – or surgery... – Anatomical representation
Patent
1990-12-04
1993-06-22
Bahr, Robert
Education and demonstration
Anatomy, physiology, therapeutic treatment, or surgery...
Anatomical representation
G09B 2328
Patent
active
052212084
ABSTRACT:
A teaching aid for those learning to use an opthalmoscope has a chamber with a first generally hemisperical wall formed with an aperture through which a photographic image of the retinal surface of an eye located in the chamber may be viewed. The image is preferably selectable from a number of different retinal images indicative of different conditions so a person using the aid may rapidly learn to recognize them. A frame extends through a slot in a further wall of the chamber so that a photographic image can pass via the slot into the chamber. The frame may form a second chamber wall opposite said aperture or be located within the chamber and spaced from its walls. A wholly spherical chamber has a frame extending diametrically across it, whilst another provides the image on an inner concave wall of the chamber. In this latter, the first and second walls are releasably joined and the second is selectable from a number of second walls bearing different images. The chamber, if spherical, may be provided with a flat on its outer surface by which it may rest on a flat wall of a support. The chamber and support may have respective magnetized and magnetizable elements such that the two are biased together when one is on the other. The support may have a plurality of support elements for supporting images used in the chamber.
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