Joseph P O'Brien

US Patent:

20020159155, Oct 31, 2002

Filed:

Apr 30, 2001

Appl. No.:

09/845366

Inventors:

Joseph O'Brien - Saint Paul MN, US

Assignee:

Trinity Technologies - Minneapolis MN

International Classification:

G02B027/00
G02B005/08
G02B017/00

US Classification:

359/614000, 359/601000, 359/608000

Abstract:

Protective eyewear for blocking laser light from entering the eyes of the wearer. The eyewear having a light absorbing filter and an adjacent light-reflecting filter such that laser light will first be reflected by the reflecting layer and then absorbed by the absorbing layer. If the light-reflecting filter is damaged or scratched the light not reflected would be absorbed by the light-absorbing filter. Similarly if the angle of incidence is such that the light-reflecting filter does not reflect the incident light the light-absorbing filter will absorb the light. The light-reflecting filter reflects a majority of the incident light on the protective eyewear and thus protects the light-absorbing filter from reaching its damage threshold. The combination of light absorbing and light reflecting filters provides better protection against light penetration of a specified wavelength than either type of filter working along.

US Patent:

54456380, Aug 29, 1995

Filed:

Jul 16, 1993

Appl. No.:

8/092558

Inventors:

Mark A. Rydell - Golden Valley MN
Joseph A. O'Brien - Fridley MN

Assignee:

Everest Medical Corporation - Minneapolis MN

International Classification:

A61B 1739

US Classification:

606 51

Abstract:

A bipolar electrosurgical device for coagulating and cutting tissue has an elongated tubular member from which a bipolar tissue cutting forceps and cutting instrument extends at the distal end. The cutting instrument is connected to a moveable rod extending through the lumen of the tubular member. A first and second conductor pair extend in spaced apart parallel arrangement to allow the cutting instrument and its moveable rod to extend therebetween. The first and second conductor pairs are operatively connected to the forceps jaws. A moveable guide member is disposed within the lumen of the elongated tubular member and has means for selectively engaging the first and second conductor pairs for closing and opening jaws of the forceps. The forceps jaws have a slot for receiving the cutting instrument therebetween. A handle member is fixed to the proximal end of the first tubular member.

US Patent:

20140251342, Sep 11, 2014

Filed:

Mar 6, 2013

Appl. No.:

13/786897

Inventors:

Joseph O'Brien - North Oaks MN, US

Assignee:

SoJo Medical - North Oaks MN

International Classification:

A61F 9/04
A61F 9/06

US Classification:

128847

Abstract:

An eye cover is provided that attaches to an air pump that provides a constant high humidity environment to the eyes, and protects the eyes especially during periods of anesthesia.