|Publication number||US3805770 A|
|Publication date||Apr 23, 1974|
|Filing date||Jul 18, 1972|
|Priority date||Jul 22, 1971|
|Also published as||DE2235786A1, DE2235786B2|
|Publication number||US 3805770 A, US 3805770A, US-A-3805770, US3805770 A, US3805770A|
|Original Assignee||Olympus Optical Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (57), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 1191 Okada Apr. 23, 1974 ENDOSCOPE GUIDE AND LUBRICATING MEANS  References Cited  Inventor: Takeshi Okada, Tokyo, Japan UNITED STATES PATENTS  Assignee: Olympus Optical Co., Ltd., Tokyo, 2,482,622 9/1949 Kahn 128/348 Japan 3,402,710 9/1968 Paleschuck 3,663,965 5/1972 Lee, Jr. et al 128/1 R  Filed: July 18, 1972  App]. No.: 272,740 Primary Examiner-Lucie H. Laudenslager Attorney, Agent, or Firm-Flynn 8L Frishauf  Foreign Application Priority Data July 22, 1971 Japan 46-65098  ABSTRACT An endoscope guide comprising a cylindrical spongy U. S. Cl. R member and a cylindrical suppgrt fitted to the rear lnt. end of said spgngy member so as to it Field of Search 128/3, 4, 5, 6, 7, 8, 9, 1 l28/1R,2H
6 Claims, 4 Drawing Figures e 1 ENDOSCOPE GUIDE AND LUBRICATING MEANS BACKGROUND OF THE INVENTION tine, it is generally considered necessary to insert the endoscope into the large intestine through the anus.
However, insertion of the endoscope into the anus is accompanied with great difficulties due to the contraction of the anus sphincter and friction between the anus and endoscope. Therefore, there have heretofore been made attempts to effect the smooth insertion of an endoscope into the anus by coating a lubricant in advance on the outer peripheral surface of the flexible portion of the endoscope. In this case, however, the endoscope is oppressed by the contracting action of the anus sphincter, causing the lubricant applied on the outside of the endoscope to be almost wiped off with the resultant obstruction of its free insertion. Most of the patients whose large intestine has to be examined have hemorrhoids and other infirmities around the anus and would, therefore, suffer a tremendous pain ifan endoscope is forcefully inserted into the anus.
It is accordingly the object of this invention to provide an endoscope guide permitting the smooth insertion of an endoscope into a body cavity without imparting a great stimulus to the inner walls of the body cavity.
SUMMARY OF THE INVENTION According to an aspect of this invention, there is provided an endoscope guide comprising a soft liquidabsorptive cylindrical member provided inside with a passageway for an endoscope and a cylindrical support connected to the rear end of said cylindrical member so as to support it securely.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view of an endoscope guide according to an embodiment of this invention;
FIG. 2 is a longitudinal sectional view of the endoscope guide of FIG. 1;
FIG. 3 is a cross sectional view on line III-Ill of FIG. 2; and
FIG. 4 is a similar cross sectional view of an endoscope guide according to another embodiment of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS There will now be described by reference to the appended drawing an endoscope guide according to an embodiment of this invention. Referring to FIG. 1, the endoscope guide comprises a cylindrical member 1 formed of a soft liquid-absorptive material, for example, spongy rubber, or natural sponge;,a cylindrical support 4 made of harder material, for example, synthetic resin and comprising an annular head 2 fixed to the rear end of said cylindrical spongy member and an inlet opening 3; and a cylindrical casing 5 surrounding the support 4 and part of said cylindrical spongy member 1. The cylindrical spongy member 1 has a plurality of integral projections 1a formed on the inner walls of a passageway 6 for an endoscope 8, each projection Ia extending in the axial direction thereof. The projections 1a of spongy material enable an endoscope to be freely conducted through said passageway 6, whether it may have a large or small diameter.
There is now described the case where an endoscope fitted with the aforementioned guide is inserted into the large intestine through the anus. Prior to said insertion, the cylindrical spongy member 1 of the endoscope guide is impregnated with a lubricant, for example, Vaseline or petrolatum. Then the cylindrical spongy member 1 and part of the support 4 are inserted into the anus to set the endoscope guide in place. When the endoscope 8 is introduced into the cylindrical spongy member 1 through the inlet opening 3 and annular head 2, the outer periphery of the flexible tube of the endoscope 8 contacts the plural projections la of the cylindrical spongy member 1. At this time, there arises the contracting action of the anus sphincter, which oppresses the cylindrical spongy member 1 lying between the anus walls and endoscope 8. Said oppression causes the lubricant impregnated in the cylindrical spongy member 1 to ooze out so as to be coated on the outside of the flexible tube of the endoscope. Accordingly, friction between said flexible tube and the anus walls is reduced to allow for easy insertion of the endoscope into the large intestine.
As is apparent from the foregoing description, the present invention prevents a lubricant applied on the outside of the flexible tube of an endoscope from being wiped off by the contraction of the anus sphincter as is often the case with the prior art endoscope and permits the smooth insertion of an endoscope into the body cavity. Further at the time of said insertion, the soft cylindrical spongy member 1 protects any inflammation around the anus. Since the endoscope can be inserted into the body cavity without directly touching the anus walls, patients afflicted with anus diseases are prominently saved from strong pangs which might otherwise be experienced.
An endoscope guide according to another embodiment of this invention includes a plurality of core rods 7 made of elastic material which is harder than that of the cylindrical spongy member 1., for example, solid rubber. The solid rubber rods 7 are inserted into the cylindrical member 1 in its axial direction, facilitating the setting of the endoscope guide in the anus or other body cavities.
This invention is not limited to the aforementioned embodiments, but encompasses various modifications. Though the foregoing embodiments included a casing 5 for securely fixing the cylindrical spongy member I to the support 4 so as to provide the rigid construction of the endoscope guide, yet the endoscope guide carries out its function even in the absence of said casing 5. Further, if there are eliminated the plural projections 1a of the cylindrical spongy member 1 which were provided for the smooth insertion of an endoscope regardless of its diameter, the endoscope guide will still attain the object.
What is claimed is:
1. An endoscope guide and lubricating means comprising:
a soft liquid-absorptive generally cylindrical spongy member having a passageway therethrough in the axial direction thereof for allowing the insertion of an endoscope through said passageway;
a plurality of projections on the inner walls of said passageway, each of said projections extending in the axial direction of said passageway; and
a generally cylindrical support formed of harder material than that of the cylindrical spongy member and connected to said cylindrical spongy member to securely support same.
2. The endoscope guide according to claim 1 wherein the cylindrical spongy member has a plurality of rods made of harder material than that of said cylindrical spongy member, each of said rods being inserted into said cylindrical spongy member and extending in the axial direction thereof.
3. The endoscope guide according to claim 1 which further comprises a casing surrounding the cylindrical support and at least part of the cylindrical spongy memher.
4. The endoscope guide according to claim 1 wherein said cylindrical support comprises a first cylindrical portion and a second cylindrical portion of smaller diameter than said first cylindrical portion and connected to said first cylindrical portion, said cylindrical portions being coaxial with each other, said second cylindrical portion extending interior of said cylindrical spongy member.
5. The endoscope guide according to claim 4 further comprising a casing surrounding the cylindrical support and extending over the outer periphery of said cylindrical spongy member in the vicinity of said second cylindrical portion of said cylindrical support, said cylindrical spongy member being interposed between a portion of said casing and said second portion of said cylindrical support.
6. The endoscope guide according to claim 1 wherein said cylindrical spongy member is impregnated with a lubricant.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2482622 *||Oct 11, 1948||Sep 20, 1949||Kahn Edward||Self-retaining uterine cannula|
|US3402710 *||Jun 27, 1966||Sep 24, 1968||Hydra Power Corp||Self-closing valve device for implantation in the human body|
|US3663965 *||Jun 8, 1970||May 23, 1972||Gordon W Culp||Bacteria-resistant percutaneous conduit device|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4332242 *||Mar 31, 1980||Jun 1, 1982||Machida Endoscope Co., Ltd.||Guide tube assembly|
|US4461281 *||Jun 15, 1977||Jul 24, 1984||Carson Robert W||Arthroscopic surgical apparatus and method|
|US4784117 *||Feb 13, 1987||Nov 15, 1988||Olympus Optical Co., Ltd.||Endoscope insertion assisting device|
|US4993406 *||Sep 14, 1989||Feb 19, 1991||Reynolds William V||Device for dampening uncontrolled movement of surgical instruments|
|US5209219 *||Mar 18, 1991||May 11, 1993||Laser Medical Research Foundation||Endoscope adaptor|
|US5728103 *||Aug 23, 1996||Mar 17, 1998||Applied Medical Technology, Inc.||Implantable subcutaneous access device and method of using same|
|US5779624 *||Dec 5, 1996||Jul 14, 1998||Boston Scientific Corporation||Sigmoid splint device for endoscopy|
|US5941815 *||Jul 10, 1998||Aug 24, 1999||Helix Medical, Inc.||Sigmoid splint device for endoscopy|
|US6315713 *||Nov 22, 1999||Nov 13, 2001||Masazumi Takada||Propellant support apparatus for self-propelled colonoscope|
|US6315714 *||Nov 29, 1999||Nov 13, 2001||Fuji Photo Optical Co., Ltd.||Endoscope insertion guide pipe|
|US6454702 *||Oct 14, 1999||Sep 24, 2002||Scimed Life Systems, Inc.||Endoscope and endoscopic instrument system having reduced backlash when moving the endoscopic instrument within a working channel of the endoscope|
|US6503192 *||May 17, 2000||Jan 7, 2003||Pentax Corporation||Insertion facilitating device for intestinal endoscope|
|US6530881 *||Jul 7, 2000||Mar 11, 2003||Vision Sciences, Inc.||Sheath apparatus for endoscopes and methods for forming same|
|US6537205 *||Nov 20, 2000||Mar 25, 2003||Scimed Life Systems, Inc.||Endoscopic instrument system having reduced backlash control wire action|
|US6733440||Aug 14, 2001||May 11, 2004||Vision Sciences, Inc.||Apparatus and method for forming thin-walled elastic components from an elastomeric material|
|US6761717||May 24, 2002||Jul 13, 2004||Scimed Life Systems, Inc.||Multifilar flexible rotary shaft and medical instruments incorporating the same|
|US6793621 *||Mar 8, 2002||Sep 21, 2004||Atropos Limited||Colonic overtube|
|US6840900||Dec 4, 2002||Jan 11, 2005||Scimed Life Systems, Inc.||Endoscopic instrument system having reduced backlash control wire action|
|US6881186||Aug 7, 2002||Apr 19, 2005||Scimed Life Systems, Inc.||Endoscope and endoscopic instrument system having reduced backlash when moving the endoscopic instrument within a working channel of the endoscope|
|US7033315||Oct 21, 2004||Apr 25, 2006||Scimed Life Systems, Inc.||Endoscope and endoscopic instrument system having reduced backlash when moving the endoscopic instrument within a working channel of the endoscope|
|US7276067||May 27, 2004||Oct 2, 2007||Boston Scientific Scimed, Inc.||Multifilar flexible rotary shaft and medical instruments incorporating the same|
|US7341564||Apr 24, 2002||Mar 11, 2008||Boston Scientific Scimed, Inc.||Biopsy forceps device with transparent outer sheath|
|US7918783||Mar 22, 2006||Apr 5, 2011||Boston Scientific Scimed, Inc.||Endoscope working channel with multiple functionality|
|US7963908 *||Oct 29, 2007||Jun 21, 2011||Kevin Lindberg||Device to lubricate a penis or medical apparatus|
|US8216260||Aug 25, 2008||Jul 10, 2012||Usgi Medical, Inc.||Apparatus and methods for forming and securing gastrointestinal tissue folds|
|US8241280||Sep 12, 2007||Aug 14, 2012||Boston Scientific Scimed, Inc.||Multifilar flexible rotary shaft and medical instruments incorporating the same|
|US8366634 *||Jun 16, 2009||Feb 5, 2013||Devicor Medical Products, Inc.||Biopsy targeting cube with elastomeric body|
|US8652028||Dec 2, 2004||Feb 18, 2014||Boston Scientific Scimed, Inc.||Endoscopic instrument system having reduced backlash control wire action|
|US8678998||Mar 3, 2006||Mar 25, 2014||Boston Scientific Scimed, Inc.|
|US8726909||Jan 27, 2006||May 20, 2014||Usgi Medical, Inc.||Methods and apparatus for revision of obesity procedures|
|US8834352||Mar 1, 2011||Sep 16, 2014||Boston Scientific Scimed, Inc.||Endoscope working channel with multiple functionality|
|US9463043||Aug 29, 2014||Oct 11, 2016||Devicor Medical Products, Inc.||Biopsy targeting cube with living hinges|
|US9480390||Dec 18, 2014||Nov 1, 2016||Ashkan Farhadi||Endoscope accessory|
|US20020147385 *||Mar 8, 2002||Oct 10, 2002||John Butler||Colonic overtube|
|US20020165580 *||Apr 24, 2002||Nov 7, 2002||Aaron Zwiefel||Biopsy forceps device with transparent outer sheath|
|US20030004400 *||Aug 7, 2002||Jan 2, 2003||Scimed Life Systems, Inc.|
|US20030083545 *||Dec 4, 2002||May 1, 2003||Scimed Life Systems, Inc.||Endoscopic instrument system having reduced backlash control wire action|
|US20030172941 *||Mar 4, 2003||Sep 18, 2003||Wolfgang Streifinger||Device for the sealing and lubrication of instruments running in trocar sleeves|
|US20050107662 *||Oct 21, 2004||May 19, 2005||Scimed Life Systems, Inc.|
|US20050107668 *||Dec 2, 2004||May 19, 2005||Scimed Life Systems, Inc.||Endoscopic instrument system having reduced backlash control wire action|
|US20070225554 *||Mar 22, 2006||Sep 27, 2007||Boston Scientific Scimed, Inc.||Endoscope working channel with multiple functionality|
|US20070299428 *||Sep 12, 2007||Dec 27, 2007||Boston Scientific Scimed, Inc.||Multifilar Flexible Rotary Shaft and Medical Instruments Incorporating the Same|
|US20080051630 *||Dec 14, 2004||Feb 28, 2008||Levey John M||Endoscopic Lubricating And Gripping Device|
|US20090112054 *||Oct 29, 2007||Apr 30, 2009||Kevin Lindberg||Device to lubricate a penis or medical apparatus|
|US20090112064 *||Oct 28, 2008||Apr 30, 2009||Levey John M||Endoscopic Lubricating and Gripping Device|
|US20090247827 *||Mar 27, 2009||Oct 1, 2009||U.S. Endoscopy Group, Inc.||Endoscope Gripping Device|
|US20100317991 *||Jun 16, 2009||Dec 16, 2010||Leimbach Jessica P||Biopsy Targeting Cube with Elastomeric Body|
|US20110213202 *||Mar 1, 2011||Sep 1, 2011||Boston Scientific Scimed, Inc.||Endoscope working channel with multiple functionality|
|US20140018625 *||Jul 10, 2013||Jan 16, 2014||University Hospitals Of Cleveland||Colonoscope closure device|
|USD755378 *||Sep 30, 2014||May 3, 2016||Fujifilm Corporation||Endoscope|
|CN101919735A *||Jun 13, 2010||Dec 22, 2010||伊西康内外科公司||Biopsy targeting cube with elastomeric body|
|CN101919735B *||Jun 13, 2010||Dec 31, 2014||德威科医疗产品公司||Biopsy targeting cube with elastomeric body|
|DE20015388U1 *||Sep 6, 2000||Mar 15, 2001||Storm Gerald||Vorrichtung zur Abdichtung und Schmierung von in Trokarhülsen geführten Instrumenten|
|EP2386241A3 *||May 6, 2011||Jan 18, 2012||Fujifilm Corporation||Guide assembly for endoscope|
|WO1998024359A1 *||Dec 3, 1997||Jun 11, 1998||Helix Medical. Inc.,||Sigmoid splint device for endoscopy|
|WO2000032118A1||Dec 1, 1999||Jun 8, 2000||Atropos Limited||A medical device comprising an evertable sleeve|
|WO2000032119A1||Dec 1, 1999||Jun 8, 2000||Atropos Limited||A medical device comprising an evertable sleeve|
|U.S. Classification||600/114, D24/138|
|International Classification||A61M37/00, A61B1/00, A61B19/00, A61B1/31|