WO2002091911A2 - Endoscope sleeve and irrigation device - Google Patents
Endoscope sleeve and irrigation device Download PDFInfo
- Publication number
- WO2002091911A2 WO2002091911A2 PCT/US2002/015477 US0215477W WO02091911A2 WO 2002091911 A2 WO2002091911 A2 WO 2002091911A2 US 0215477 W US0215477 W US 0215477W WO 02091911 A2 WO02091911 A2 WO 02091911A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- endoscope
- sleeve
- cylinder
- fluid
- distal end
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/233—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the nose, i.e. nasoscopes, e.g. testing of patency of Eustachian tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00091—Nozzles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00094—Suction openings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
- A61B1/127—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements with means for preventing fogging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
- A61B1/126—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning in-use
Definitions
- This invention relates to an endoscope sleeve and, more particularly, to a sleeve for endoscopes used in surgical procedures which provides continuous suction and selective application of fluid to clean the endoscope window and also to clean or irrigate the operative field with a fine fluid spray.
- endoscopes designed for surgery are adapted to be inserted in a body cavity, such as the nasal cavity, the pituitary cavity, the cranial cavity, or the middle ear.
- Surgical endoscopes are used to observe the condition of a body part within the cavity through a window at the distal end of the endoscope while surgical procedures are performed on that body part using instruments with elongated shafts and cutting tips inserted alongside the endoscope.
- Surgical endoscopes intended to be used with the sleeve of the present invention like the 4 mm. sinus endoscopes available from Karl Storz and Smith & Nephew Richards, are to be distinguished from the much longer and thinner flexible endoscopes typically used only for examination and diagnostic purposes.
- Such surgical endoscopes should also be distinguished from laporoscopes used in laporoscopy where continuous pressure is typically required to keep the field inflated.
- surgical endoscopes are provided with various devices for cleaning the surface of the distal window as it becomes soiled and fogged during the course of procedures conducted within the body cavity. These devices supply fluid and/or suction to the area of the distal window in various complex arrangements.
- the prior devices are less than satisfactory in environments such as the nasal cavity, where the endoscope window is nearly continuously being soiled or fogged as surgical procedures are conducted.
- These prior art devices are often ineffective in quickly and effectively removing the fluids and tissue which accumulate on the endoscope window during the course of the surgical procedure.
- Such devices also typically do not supply continuous suction to the operative site, including when a window cleaning operation is underway, which is highly desirable.
- the nasal cavity is a particularly difficult environment because of the substantial mucus flow produced there and the requirement that a clear operative field be maintained.
- a continuously active suction port will touch surrounding nasal tissue, pulling it into the suction conduit, causing tissue damage and clogging the port.
- Prior devices which do supply fluid for cleaning the endoscope window but do not carefully control the directionality of this fluid are problematic. These prior devices can project the fluid directly onto certain particularly sensitive surfaces within a cavity, such as a cranial cavity or an eye orbit damaging tissue in the cavity. Also, prior devices that do supply fluid for cleaning the endoscope window are often erratic in the amount of fluid delivered. This results in ineffective cleaning of the endoscope window.
- Another object of the present invention is to provide an endoscope sleeve that irrigates the operative field with a fluid spray.
- Yet another object of the present invention is to provide an endoscope sleeve that provides continuous suction to clear away debris, smoke, etc. produced in the cavity during the course of surgical procedures.
- a still further object of the present invention is to provide an endoscope sleeve that is particularly useful in endoscopic sinus surgery and in endoscopic pituitary surgery.
- Figure 1 is a perspective view of an empty sleeve in accordance with the present invention, cut away at its proximal end to highlight the mechanism provided for locking an endoscope in the sleeve;
- Figure 2 is a partial end view, in perspective, of the empty sleeve of Figure 1 ;
- Figure 3 is an elevation view of the sleeve of Figure 1 in which an endoscope has been mounted and in which the sleeve is cut away at its proximal end to show the proximal end of the endoscope resting in the sleeve;
- Figure 4 is an enlarged cross-sectional view of the distal end of the sleeve of the present invention taken along lines 4-4 of Figure 1 ;
- Figure 5 is an end view of and end view of a sleeve in accordance with the invention and corresponding to that of Figure 2, showing the suction and fluid ports disposed adjacent the window of an endoscope mounted in the device;
- Figure 6 is an elevation view of a sleeve in accordance with the present invention in which the fluid and pressure supply are connected to the sleeve;
- Figure 7 is an enlarged view of a portion of the distal end of the sleeve and endoscope of Figure 6 demonstrating the manner in which an endoscope window is cleaned in accordance with the present invention.
- the sleeve includes a fluid inlet port 12 and a suction port 14, with both ports angled toward the proximal end of the sleeve.
- Each of the ports has a conventional nipple 15 for frictionally attaching hoses to supply fluid and suction as appropriate.
- Fluid inlet port 12 is in communication with a fluid conduit 16 which opens onto the distal end 20 of the sleeve while suction port 14 is in communication with a suction conduit 18 which also opens onto the distal end 20 of the sleeve.
- the suction conduit transports fluid, mucus and smoke away from the operative field, and the fluid conduit supplies fluid (typically sterile saline) to the distal end of the sleeve to clean the distal window of an endoscope mounted in the sleeve.
- fluid typically sterile saline
- Cylinder 22 also includes an annular docking member 24 mounted to the proximal end 26 of cylinder 22.
- the distal end 32 of suction conduit 18 is a generally annular opening located in a plane which is generally perpendicular to the longitudinal axis of the sleeve.
- the distal end 34 of rigid cylinder 22 is similarly generally annular and lies generally in the same plane as the distal end of the suction conduit.
- This cylinder is preferably of a length just slightly shorter than the outer tube of the endoscope which is to be fitted to the sleeve so that the window at the distal end of the endoscope lies just beyond the distal end of the cylinder.
- hood 38 which is open on the side to provide a fluid outlet 40 opposite distal end 34 of cylinder 22. Additionally, a notch 42, preferably half moon in shape, may be cut out of the distal end of cylinder 22 to provide improved access to the endoscope window. As explained in more detail below, hood 38 insures that the fluid passing through fluid conduit 16 and out of outlet 40 will be directed against the distal window of the endoscope mounted in sleeve 10.
- FIG 3 an endoscope 28 for use in endoscopic cavity surgery is shown mounted in cylinder 22 of sleeve 10 of the invention.
- Docking member 24 is cut away at A to show the viewing hub 44 at the proximal end of the elongated tube 46 of the endoscope mounted in docking member 24.
- Docking member 24 is illustrated in more detail in Figure 4.
- This member includes a cavity 50 configured to snugly receive the viewing hub of the endoscope with the conical leading surface 52 of the hub ( Figure 3) abutting a corresponding conical surface 54 in the docking member.
- An annular groove 56 is provided spaced from conical surface 54 to receive an "O" ring 59 which helps position the viewing hub in place in the sleeve and minimizes seepage through the sleeve.
- An enlarged cylindrical opening 58 is provided at the proximal end of the docking member to receive a corresponding enlarged proximal portion 60 ( Figure 3) of the viewing hub of the endoscope.
- Removal of the endoscope from the sleeve will require the application of sufficient force to displace the locking ring from the annular groove, whereupon the entire endoscope may be removed from the sleeve. Removal of the endoscope from the sleeve will require the application of sufficient force to pass "O" ring 56, whereupon the entire endoscope may be removed from the sleeve.
- the scope is mounted in the sleeve by inserting tube 46 of the scope into cylinder 22 of the device until the viewing hub of the endoscope is fully seated in the docking member of the device.
- the window 62, at the distal end of endoscope tube 46 will now preferably be offset about 2 mm. to 3 mm. beyond the end of cylinder 22.
- the window of the endoscope will typically be perpendicular to the longitudinal axis of the endoscope, it may have angulations of up to 30°. Since the window extends such a short distance beyond from the end of cylinder 22, fluid directed from outlet 40 will perform the intended function at all of these angulations.
- FIG. 6 the endoscope sleeve of the present invention is shown with flexible air and suction hoses, 70 and 72 respectively, in place on nipples 15 of fluid and suction ports 12 and 14, connecting the suction and fluid ports to an appropriate supply of suction, and a high pressure supply of fluid.
- suction will be that conventionally supplied by the high continuous wall suction source available in the operating room.
- Flexible hose 70 extending from the nipple on fluid port 12 is connected to a control valve 74, and a further portion of flexible tubing 76 which, in turn is connected to the high-pressure fluid source 80 as discussed below.
- This valve is a conventional on/off fluid control valve which is “off until spring biased button 78 is pressed to turn “on” the fluid flow and returns to the "off condition when the button is released.
- This valve is preferably located in the fluid line a substantial distance from the point of attachment of hose 70 to fluid port 12. It is preferred that this spacing be at least about 15 cm.
- Locating switch 74 off of the sleeve and away from the surgical field makes it possible to provide a particularly compact sleeve 10 which produces minimal obstruction of cutting and other instruments (not shown) inserted alongside the sleeve during the course of an endoscopic procedure. Additionally, this remote fluid on-off control can be handled, for example, by the surgeon's first assistant, surgical scrub nurse or other assistant who can act on either the surgeon's instructions or by watching the procedure proceeding on a monitor connected to the endoscope operating in a conventional manner.
- the pressure provided at fluid source 80 should be at least about 100 cm to 120 cm of H 2 O.
- One desirable way of providing this pressure is with a conventional bag of intravenous fluid 82 held in a pressure cuff 84 as is typically used to provide rapid intravenous administration.
- a conventional infusion pressure pump cannot supply sufficient fluid pressure.
- the application of this high pressure fluid is possible because the cavity in which the endoscopic procedure is performed communicates with the atmosphere, permitting the release of pressure introduced by the high- pressure fluid.
- Figure 7 shows high pressure fluid 90 (saline) directed against the surface of endoscope window 60 to defog and clean debris from the window and to produce a fine spray 92 as the fluid is deflected back from the window surface.
- the fluid must be provided at a pressure which greatly exceeds the suction force.
- the fluid will be provided at a pressure of at least about 12 cm to 25 cm of H 2 O at the distal end of the fluid conduit.
- a pressure of 150 mm of mercury may be provided on cuff 84 to produce fluid pressure sufficient to support a 40 cm column of water. This high pressure quickly and effectively cleans the surface of the endoscope window, irrigating the field and cleaning the end of the scope in a single operation.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002316121A AU2002316121A1 (en) | 2001-05-16 | 2002-05-15 | Endoscope sleeve and irrigation device |
EP02746396A EP1399054A4 (en) | 2001-05-16 | 2002-05-15 | Endoscope sleeve and irrigation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/858,785 | 2001-05-16 | ||
US09/858,785 US6712757B2 (en) | 2001-05-16 | 2001-05-16 | Endoscope sleeve and irrigation device |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002091911A2 true WO2002091911A2 (en) | 2002-11-21 |
WO2002091911A3 WO2002091911A3 (en) | 2003-06-05 |
Family
ID=25329171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/015477 WO2002091911A2 (en) | 2001-05-16 | 2002-05-15 | Endoscope sleeve and irrigation device |
Country Status (4)
Country | Link |
---|---|
US (1) | US6712757B2 (en) |
EP (1) | EP1399054A4 (en) |
AU (1) | AU2002316121A1 (en) |
WO (1) | WO2002091911A2 (en) |
Cited By (2)
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ES2490391A1 (en) * | 2013-02-28 | 2014-09-03 | Universidad Miguel Hernández De Elche | Anti-fogging optics for endoscopic surgery and its mechanism of use (Machine-translation by Google Translate, not legally binding) |
CN106859731A (en) * | 2017-02-08 | 2017-06-20 | 山东省立医院 | A kind of Maxilla endoscope |
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Also Published As
Publication number | Publication date |
---|---|
AU2002316121A1 (en) | 2002-11-25 |
WO2002091911A3 (en) | 2003-06-05 |
US6712757B2 (en) | 2004-03-30 |
EP1399054A4 (en) | 2008-09-24 |
US20020173699A1 (en) | 2002-11-21 |
EP1399054A2 (en) | 2004-03-24 |
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