Mdt Corporation

Bruce A Sanborn

Leonard L Hallings

Donald W Bramer

Shawn Edward O'Hara

James E Schryver

An operatory light fixture having a touchless switch operatively connected to a lamp disclosed. The touchless switch is constructed to detect a user's hand when positioned in a command location relative to the touchless switch and to respond thereto by operating the lamp. In a preferred embodiment, the touchless switch is an active infrared-type switch, comprising means for emitting infrared light toward a command location, means for detecting infrared light reflected from an object such as a hand which is positioned at or near the command location, and relay means responsively connected to the detection means and operatively connected to the lamp. In another preferred embodiment, the touchless switch includes means for discriminating a true signal produced by placement of an object such as a user's hand at the command location, from randomly occurring fluctuations in light intensity in the operatory environment.

Surgical light with touchless switch

Cover lens for a surgical light

A multi-beam surgical lighthead includes a central pod and multiple peripheral pods mounted on pivots and mechanically linked to provide synchronized adjustment of the convergence portion of the peripheral lighthead upon the axial beam of the central pod. This mechanical linkage is operated by handles mounted both axially and transverse the lighthead.

Lighthead assembly

A lighthead assembly includes a plurality (three) individual pods with spotlights pivotally mounted symmetrically around an adjustment post. The post carries cam surfaces linked to the pods for synchronous tilting of the pods by rotation of the post. The post may be rotated directly by an axial handle or remotely by means of mechanical linkage.

A cover lens element for a surgical light includes a clear plastic light path region which may be smooth and flat on one surface but which is dimpled on its other surface with numerous overlapping spherical depressions which in combination present an array of plano-concave negative lenses.

Growing community of inventors

Rochester, NY, United States of America

Bruce A Sanborn