|
| US4300541 | 22 Aug 1980 | 17 Nov 1981 | | Speculum lens structure |
| US4566439 | 16 Jul 1984 | 28 Jan 1986 | | Acrylooptic examination device with auxiliary light |
| US4597383 | 25 Apr 1985 | 1 Jul 1986 | Luxtec Corporation | Fiber-optic illuminated vaginal speculum |
| US4638792 | 4 Mar 1985 | 27 Jan 1987 | | Adjustable speculum with incorporated lighting system |
| US4686966 | 11 Apr 1986 | 18 Aug 1987 | | Disposable duckbill speculum |
| US4766887 | 19 Jun 1986 | 30 Aug 1988 | Welch Allyn, Inc. | Disposable vaginal speculum |
| US4966130 | 26 Jan 1990 | 30 Oct 1990 | | One-piece disposable speculum |
| US5072720 | 8 Jan 1990 | 17 Dec 1991 | | Vaginal speculum |
| US5179937 | 28 May 1991 | 19 Jan 1993 | | Disposable vaginal speculum |
| US5231973 | 21 Dec 1989 | 3 Aug 1993 | Advanced Medical Devices Incorporated | Vaginal speculum |
| US5318010 | 1 Sep 1992 | 7 Jun 1994 | Danvag Ltd. | Medical instrument |
| US5465709 | 10 Nov 1993 | 14 Nov 1995 | Advanced Medical Products Inc. | Illuminated vaginal speculum |
| US5499964 | 16 Sep 1994 | 19 Mar 1996 | Welch Al Iyn, Inc. | Speculum with smoke evacuation channel |
| US5785648 | 9 Oct 1996 | 28 Jul 1998 | David Min, M.D., Inc. | Speculum |
| US5873820 | 31 Dec 1997 | 23 Feb 1999 | | Vaginal speculum |
| US5938591 | 9 Jun 1998 | 17 Aug 1999 | | Self retaining laryngoscope |
| US6024697 | 11 Jan 1999 | 15 Feb 2000 | | Multi-bladed speculum for dilating a body cavity |
| US6048308 | 30 Mar 1999 | 11 Apr 2000 | | Vaginal speculum |
| US6176824 | 10 Apr 1997 | 23 Jan 2001 | | Fiberoptically illuminated appliances |
| US6302842 | 11 Jan 2001 | 16 Oct 2001 | Innovative Surgical Design LLC | Episiotomy retractor |
| US6379296 | 26 Mar 1999 | 30 Apr 2002 | | Medical lighting device |
| US6379299 | 4 May 2000 | 30 Apr 2002 | | Vaginal speculum with adjustable blades |
| US6669654 | 16 Jan 2002 | 30 Dec 2003 | | Method for measuring positions and dimensions of vaginal prolapses with a vaginal speculum having removable blades |
| US7052456 | 16 Apr 2003 | 30 May 2006 | | Airway products having LEDs |
| US7081090 | 21 Mar 2003 | 25 Jul 2006 | Welch Allyn, Inc. | Protective sheath for illumination assembly of a disposable vaginal speculum |
| US7384392 | 22 May 2006 | 10 Jun 2008 | | Disposable expandable cordless lighted retractor |
| US7654953 | 31 Aug 2006 | 2 Feb 2010 | | Universal vaginal speculum with disconnectable blades |
| US7691120 | 26 Aug 2004 | 6 Apr 2010 | Zimmer Spine, Inc. | Access systems and methods for minimally invasive surgery |
| US8012089 | 7 Jan 2008 | 6 Sep 2011 | | Disposable expandable cordless lighted retractor |
| US8062217 | 28 Jan 2008 | 22 Nov 2011 | Theken Spine, LLC | Surgical retractor with removable blades and method of use |
| US8142352 | 30 Mar 2007 | 27 Mar 2012 | Welch Allyn, Inc. | Vaginal speculum assembly having portable illuminator |
| US8157728 | 3 Apr 2006 | 17 Apr 2012 | Welch Allyn, Inc. | Vaginal speculum |
| USD448080 | 11 Jan 2001 | 18 Sep 2001 | Innovative Surgical Design, LLC | Episiotomy retractor |
