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| US4690132 | 7 Apr 1986 | 1 Sep 1987 | | Endoscope particularly useful as an anoscope |
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| US4972827 | 25 Jan 1990 | 27 Nov 1990 | Fuji Photo Optical Co., Ltd. | Guide device for percutaneous insertion of endoscope |
| US4978334 | 8 Sep 1988 | 18 Dec 1990 | | Apparatus and method for providing passage into body viscus |
| US5135526 | 22 Apr 1991 | 4 Aug 1992 | Zinnanti Surgical Instruments, Inc. | Electro-cautery speculum |
| US5392764 | 18 Jun 1993 | 28 Feb 1995 | | Gynecological speculum |
| US5746749 | 26 Apr 1995 | 5 May 1998 | | Rectovaginal surgical repair instrument |
| US5895351 | 6 Feb 1998 | 20 Apr 1999 | Arthrotek Inc. | Tissue distracting cannula |
| US6142933 | 23 Nov 1998 | 7 Nov 2000 | Ethicon Endo-Surgery, Inc. | Anoscope for hemorrhoidal surgery |
| USD300609 | 18 Feb 1986 | 11 Apr 1989 | | Thermometer sheath |
| USD318812 | 8 May 1989 | 6 Aug 1991 | Ivac Corporation | Disposable speculum for an infrared thermometer |
| USD360261 | 18 Jun 1993 | 11 Jul 1995 | | Medical speculum |
| USD385628 | 17 May 1996 | 28 Oct 1997 | Oligoelementos y Productos Ortomoleculares Pastur, S.L. | Combined rectal speculum and obturator for enemas and colon hydrotherapy |
| USD388172 | 27 Jul 1995 | 23 Dec 1997 | E-Z Kare Good Health Systems, Inc. | Nasal dilator |
| USD443930 | 31 Mar 2000 | 19 Jun 2001 | AstraZeneca AB | Rectal insertion device |
| USD449104 | 27 Nov 2000 | 9 Oct 2001 | ClearWater Colon Hydrotherapy, Inc. | Combined speculum and obturator for colon hydrotherapy |
| USD452004 | 27 Nov 2000 | 11 Dec 2001 | ClearWater Colon Hydrotherapy, Inc. | Combined speculum for obturator for colon hydrotherapy |
