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    • 3. 发明授权
    • Dental viewing apparatus and method
    • 牙科观察装置及方法
    • US4790751A
    • 1988-12-13
    • US119201
    • 1987-10-30
    • Richard A. ReinhardtGerald J. Tussing
    • Richard A. ReinhardtGerald J. Tussing
    • A61B1/247A61C1/08A61C3/00
    • A61B1/247A61B1/07A61C1/088
    • To permit more effective viewing during dental surgery of diagnosis, a retractor or probe assembly includes: (1) a cylindrical stainless steel handle about 14 centimeters long and 7 millimeters in diameter to which a mirror may be mounted; and (2) a 15 millimeter long retractor or probe extending at right angles to the handle with openings in it for the passage of light and an opening near the retractor or probe for water and air. One end of the handle opposite to the retractor or probe receives an air hose, a water hose and a fiber optic bundle connected to a dental light source to supply air, water and/or light to the retractor or probe end of the handle. The retractor or probe assembly: (1) supplies light with sufficient intensity for transillumination or direct illumination of the dental root, pulp chamber, or other constricted areas in the oral cavity: and (2) in the case of a blade shaped retractor, is strong enough to permit insertion into and retraction of the gingival tissue or other oral soft tissue.
    • 为了在诊断的牙科手术期间允许更有效的观察,牵开器或探针组件包括:(1)可以安装反射镜的直径约14厘米长和7毫米的圆柱形不锈钢手柄; 和(2)15毫米长的牵开器或探头,其与手柄成直角地延伸,其中具有用于光通过的开口和用于水和空气的牵开器或探针附近的开口。 手柄与牵开器或探针相对的一端接收空气软管,水软管和连接到牙科光源的光纤束,以将空气,水和/或光提供给手柄的牵开器或探针端。 牵引器或探针组件:(1)提供足够强度的光,用于透照或直接照射口腔中牙根,纸浆室或其他收缩区域:(2)在叶片形收缩器的情况下 足够强以允许插入牙齿组织或其他口腔软组织的和缩回。