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Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. WELCH ALLYN, December 1, 2015: US09198566 (1 worldwide citation)

A light assembly for a hand-held medical diagnostic instrument. The light assembly includes a substrate having a top surface and a bottom surface, a light source mounted to the top surface, and the bottom surface having first and second electrical terminals. The light assembly further includes a cir ...


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Ervin Goldfain, Chris R Roberts, Allan I Krauter, Steven R Slawson, William H Lagerway: Eye viewing device comprising video capture optics. Welch Allyn, December 25, 2012: US08337017 (1 worldwide citation)

There is described in one embodiment an eye viewing device for viewing a structure of an eye such as a retina. The eye viewing device can include an image sensor. In one embodiment an eye viewing device can be adapted to facilitate both visual viewing of an eye structure and electronic image capture ...


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Raymond A Lia, Chris R Roberts, Ervin Goldfain, Steven R Slawson, Robert J Wood: Replacement light assembly. WELCH ALLYN, April 3, 2018: US09931028

A light assembly for a hand-held medical diagnostic instrument. The light assembly includes a substrate having a top surface and a bottom surface, a light source mounted to the top surface, and the bottom surface having first and second electrical terminals. The light assembly further includes a cir ...


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John P Kroetz, John A Lane, David E Quinn, John T Delaney, Matthew D Mulin, Matthew J Kinsley, Steven R Slawson, Scott A Martin, David M Antos, Ray D Stone, William N Cuipylo, Adam P Vallee: Thermometry heating and sensing assembly. WELCH ALLYN, April 17, 2018: US09943232

A thermometry apparatus includes a distal probe tip having a hollow interior. An insulating support is at least partially disposed within the interior of the distal probe tip. The insulating support is configured to receive at least one of at least one heating element and at least one temperature se ...


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Ervin Goldfain, Allan I Krauter, Chris R Roberts, Steven R Slawson, William H Lagerway: Eye viewing device comprising eyepiece and video capture optics. Wall Marjama & Bilinski, June 24, 2004: US20040119941-A1

The invention is an eye viewing device having a module holder formed at an observer end thereof. Replaceably received in the holder is a viewing module. The viewing module may comprise eyepiece optics, image signal generating elements, or combined eyepiece and image signal generating elements.