Welch Allyn, Inc.

Peter J Bettis

Deborah A Laun

Jimmie B Allred, Iii

David T Middleton, Jr

Scott G Spanfelner

Michael F Curry

James G Strong

Susan E Dubay

Tony Mark Anthony

Karl Decerce

Illuminator storage system

Illuminator switch assembly

An illumination assembly for a medical diagnostic instrument, includes an open ended lamp housing, an incandescent lamp disposed within the housing. A peripheral sealing member is disposed in intimate contact with the exterior surface of the lamp envelope such that initial energization of said lamp causes the sealing member to create a substantial fluid-tight seal with the lamp to protect the interior of the housing, including the electrical contacts of the assembly.

Illumination assembly having fluid-tight seal

There is provided a propulsion unit that is incorporated in an endoscope or borescope. Advancement of the insertion tube through a passageway is attained by a series of washers or similar members that can be mounted on the insertion tube of the borescope and can independently move coaxially with respect to the insertion tube. When the tube is passed into a passageway, the washers contact the walls. A drive motor that is associated with the insertion tube axially reciprocates the washers and transmits the axial motion to the insertion tube. The rate of movement of the washers is nonuniform and washer movements are phased such that at any point in time more washers are moving in one direction than in the opposite direction. The resultant frictional forces are such that net forward motion of the tube is achieved.

Self-advancing endoscope

Growing community of inventors

Skaneateles, NY, United States of America

Peter J Bettis