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Ervin Goldfain, Steven R Slawson, Eric M Andreassen, Cynthia A Kuiper, Elizabeth P Staples, Raymond A Lia: Otoscope. Welch Allyn, Wall Marjama & Bilinski, February 3, 2005: US20050027169-A1

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


32
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, George S Blasiak, Wall Marjama & Bilinski, July 25, 2002: US20020097379-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.


33
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, July 11, 2002: US20020089644-A1

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 ...


34
Ervin Goldfain, William Lagerway, Chris R Roberts, Steven R Slawson, Allan I Krauter: Eye viewing device for large field viewing. Welch Allyn, Gary Ritts, Po Box 7651, May 29, 2003: US20030098952-A1

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 ...


35
Steven R Slawson, Chris R Roberts, Allan I Krauter, Ervin Goldfain: Eye viewing device comprising eye cup. Welch Allyn, George S Blasiak, Wall Marjama & Bilinski, April 3, 2003: US20030063386-A1

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 ...


36
Ervin Goldfain, Chris R Roberts, Allan I Krauter, Steven R Slawson, William H Lagerway: Eye viewing device comprising video capture optics. Hiscock & Barclay, February 7, 2008: US20080030683-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 ...


37
Michael T McMahon, Allan I Krauter, Robert L Vivenzio, Dale C Saddlemire, Dominick Danna, Steven R Slawson, Ervin R Goldfain, Daniel C Briggs, Scott G Spanfelner, Jon R Salvati: Welch Allyn, Hiscock & Barclay, September 18, 2008: US20080228038-A1

An illumination assembly for use with a vaginal speculum includes an assembly housing containing a light source, such as at least one LED or incandescent lamp. The illumination assembly, which can be battery powered or powered by means of a dedicated power supply, such as an AC power supply, is conf ...


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Robert L Vivenzio, Michael T McMahon, Steven R Slawson, Dominick Danna, Allan I Krauter, Dale C Saddlemire: Welch Allyn, Marjama Muldoon Blasiak & Sullivan, October 4, 2007: US20070230164-A1

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 at least one feature to protect the illuminator from contamination and to prevent users from ...


39
Michael T McMahon, Steven R Slawson, Dale C Saddlemire: Power connections and interface for compact illuminator assembly. Welch Allyn, Marjama Muldoon Blasiak & Sullivan, October 4, 2007: US20070230167-A1

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 ...


40
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 ...