21
Eric M Andreassen, David M Fallat, Ervin Goldfain, John R Strom, John T Delaney, Howard Haines III, Corinn C Fahrenkrug, Cynthia A Kuiper: Digital otoscope. Welch Allyn, Hiscock & Barclay, June 25, 2013: US08469882 (2 worldwide citation)


An otoscope includes an instrument head, a tip element and an optical system. The instrument head has a distal insertion portion for insertion into an ear of a human or veterinary subject. The distal insertion portion has a distal opening. The tip element is releasably attached to the distal inserti ...


22
Ervin Goldfain, Steven R Slawson, Eric M Andreassen, Kimberly E McNeilly, Elizabeth P Staples: Veterinary otoscope. Welch Allyn, September 28, 2010: US07803110 (2 worldwide citation)


A veterinary otoscope permitting examination of an ear is defined by an instrument head including a proximal end and a distal insertion portion that is insertable into the ear. The veterinary otoscope includes an imaging lens train disposed within the instrument head, wherein each of the imagine len ...


23
Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. Welch Allyn, June 11, 2013: US08459844 (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 ...


24
Ervin Goldfain: Method and apparatus for observing subsurfaces of a target material. Welch Allyn, Guntin & Gust, Ed Guntin, April 7, 2015: US09001326 (1 worldwide citation)


A system that incorporates teachings of the present disclosure may include, for example, a method for generating from a light source a light signal operating in a region of the light spectrum, modifying the light signal with a first polarization device having a first polarization state to generate a ...


25
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 ...


26
Ervin Goldfain, Raymond A Lia: Method and apparatus for analyzing subsurfaces of a target material. Welch Allyn, Guntin & Gust, Ed Guntin, April 21, 2015: US09014792 (1 worldwide citation)


A system that incorporates teachings of the present disclosure may include, for example, a method for aligning first and second light signals on an optical path directed to a target, where the first light signal provides a visualization of the target, and a portion of the second light signal reflect ...


27
Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. WELCH ALLYN, December 1, 2015: US09198566


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 ...


28
Ervin Goldfain: Method and apparatus for observing subsurfaces of a target material. WELCH ALLYN, Guntin & Gust, Andrew Gust, November 10, 2015: US09182343


A system that incorporates teachings of the present disclosure may include, for example, a method for generating from a light source a light signal operating in a region of the light spectrum, modifying the light signal with a first polarization device having a first polarization state to generate a ...


29
James Strong, Richard A Tamburrino, John M Ryan, Roger W A Leseberg, Ervin Goldfain, David M Babson, David Stephens, Angelo Martellaro: Wearable headlight devices and related methods. Integra LifeSciences Corporation, Jenkins Wilson Taylor & Hunt P A, July 26, 2016: US09400101


Wearable headlight devices and related methods are provided and can include a luminaire that can include a housing having a luminaire vent therein for receiving cooling air and a light source contained within the housing. An air moving device can be located outside of the luminaire for facilitating ...


30
Peter J Davis, Ervin Goldfain: Medical diagnostic instrument. WELCH ALLYN, December 1, 2015: US09198560


A medical diagnostic instrument that enables optical viewing of a target area, includes an optical system disposed within an instrument housing, the optical system including at least one primary optical element disposed along an optical axis. A focusing screen is distally aligned along the optical a ...



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