51
Ervin Goldfain, Daniel C Briggs: Medical diagnostic instrument with variable focus liquid lens. Welch Allyn, Hiscock & Barclay, April 3, 2008: US20080079897-A1


A diagnostic instrument includes an illumination system for providing illuminating light and an imaging system for directing the illuminating light to a target and for transmitting light reflected from the target to a viewing location. The imaging system includes an electrically controllable variabl ...


52
Ervin Goldfain, Jon Salvati, David Fallat, Marcia Wawro, Michael McMahon: Digital documenting ophthalmoscope. Welch Allyn, Wall Marjama & Bilinski, May 26, 2005: US20050110949-A1


The invention is an eye viewing device having an eyepiece at an observer end thereof and an imaging element at an observation port thereof. Light that is reflected from an imaged eye of a patient is provided to either or both of the eyepiece and the imaging element. A practitioner can view the image ...


53
Ervin Goldfain, Steven R Slawson, Eric M Andreassen, Kimberly E McNeilly, Elizabeth P Staples: Veterinary otoscope. Welch Allyn, Hiscock & Barclay, November 9, 2006: US20060252996-A1


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 ...


54
Ervin Goldfain, Chris R Roberts, Allan I Krauter, Steven R Slawson, William H Lagerway: Eye viewing device comprising video capture optics. Welch Allyn, Hiscock & Barclay, September 16, 2010: US20100231856-A1


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 ...


55
James Strong, Richard A Tamburrino, John M Ryan, Roger W Leseberg, Ervin Goldfain, David M Babson, David Stephens, Angelo Martellaro: Wearable headlight devices and related methods. May 17, 2012: US20120120635-A1


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 ...


56
Robert J Wood, Jon R Salvati, Michael Curry, Christopher Dickens, Ervin Goldfain: Examination light apparatus with touch-less control. Welch Allyn, July 21, 2011: US20110175551-A1


An examination light apparatus including a touch-less control component that enables a user to control the apparatus without requiring physical contact between the user and the apparatus. The apparatus employs an LED control component that is configured to adapt its electrical interface to a variabl ...


57
Eric M Andreassen, David M Fallat, Ervin Goldfain, John R Strom, John T Delaney, Howard Haines III, Corinn Fahrenkrug, Cynthia A Kuiper: Digital otoscope. Welch Allyn, March 15, 2012: US20120065473-A1


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 ...


58
Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. January 5, 2012: US20120002422-A1


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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