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Ervin Goldfain, William Lagerway, Chris R Roberts, Steven R Slawson, Allan I Krauter: Eye viewing device for large field viewing. Welch Allyn, Wall Marjama & Bilinski, September 6, 2005: US06939006 (5 worldwide citation)


The invention is a low cost, low input power eye viewing device well suited for viewing wide field retinal images through an undilated pupil. Included in the device are a converging light illumination system and an aperture stop. The converging light illumination system provides ease of entry of lig ...


12
Michael T McMahon, Steven R Slawson, Dale C Saddlemire: Power connections and interface for compact illuminator assembly. Welch Allyn, July 20, 2010: US07758203 (5 worldwide citation)


A portable illuminator includes a contained power source and an integrally contained light source that is selectively inserted into the handle portion of a vaginal speculum. The portable illuminator includes an electrical interface that permits selective connection to at least two electrical devices ...


13
Steven R Slawson, Chris R Roberts, Allan I Krauter, Ervin Goldfain: Eye viewing device comprising eye cup. Welch Allyn, Wall Marjama & Bilinski, December 14, 2004: US06830347 (5 worldwide citation)


The invention is a hand-held eye viewing device adapted to be readily positioned in an operative radial displacement, angular orientation and axial standoff position relative to an eye. The eye viewing device includes an eye cup extending from a patient end of the device having a patient end adapted ...


14
Ervin Goldfain, William Lagerway, Chris R Roberts, Steven R Slawson, Allan I Krauter: Eye viewing device for large field viewing. Welch Allyn, George S Blasiak, Wall Marjama & Bilinski, March 4, 2003: US06527390 (5 worldwide citation)


The invention is a low cost, low input power eye viewing device well suited for viewing wide field retinal images through an undilated pupil. Included in the device are a converging light illumination system and an aperture stop. The converging light illumination system provides ease of entry of lig ...


15
Ervin Goldfain, Chris R Roberts, Allan I Krauter, Steven R Slawson, William H Lagerway: Eye viewing device comprising eyepiece and video capture optics. Welch Allyn, Marjama & Bilinski, December 25, 2007: US07311401 (4 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 ...


16
Ervin Goldfain, Steven R Slawson, Eric M Andreassen, Kimberly E McNeilly, Elizabeth P Staples: Veterinary otoscope. Welch Allyn, September 28, 2010: US07803110 (3 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 ...


17
Ervin Goldfain, Allan I Krauter, Chris R Roberts, Steven R Slawson, William H Lagerway: Eye viewing device comprising video capture optics. Welch Allyn, August 31, 2010: US07784940 (2 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 ...


18
Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. Welch Allyn, June 11, 2013: US08459844 (2 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 ...


19
Robert J Wood, Jon R Salvati, Michael Curry, Michael T McMahon, Steven R Slawson: Motion sensitive and capacitor powered handheld device. Welch Allyn, Merchant & Gould P C, October 6, 2015: US09153994 (2 worldwide citation)


A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage f ...


20
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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