WO2006067942A1 - 洗浄ブラシ - Google Patents
洗浄ブラシ Download PDFInfo
- Publication number
- WO2006067942A1 WO2006067942A1 PCT/JP2005/022108 JP2005022108W WO2006067942A1 WO 2006067942 A1 WO2006067942 A1 WO 2006067942A1 JP 2005022108 W JP2005022108 W JP 2005022108W WO 2006067942 A1 WO2006067942 A1 WO 2006067942A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brush
- shaft
- cleaning brush
- cleaning
- diameter
- 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
- A61B1/12—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
- A61B1/121—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 post-use
- A61B1/122—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 post-use using cleaning tools, e.g. brushes
Definitions
- the present invention relates to a cleaning brush used for cleaning a conduit such as an endoscope.
- Endoscopes are provided with fluid conduits such as a suction conduit and a water supply / air supply conduit for the purpose of securing a visual field when observing the inside of a body cavity.
- fluid conduits such as a suction conduit and a water supply / air supply conduit for the purpose of securing a visual field when observing the inside of a body cavity.
- These ducts may pass through the patient's blood, mucus, secretions, etc. during endoscopic examinations and transendoscopic surgery.
- these fluids may flow back into the pipeline from the opening at the end of the endoscope, and may enter the pipeline, or these fluids may remain in the pipeline after the inspection. There is also. For this reason, the liquid etc. adhering to the inner wall of the pipe line is cleaned with an endoscope cleaning brush.
- the cleaning brush for an endoscope has a force such as a long and flexible shaft inserted into a pipe line of the endoscope and a brush portion provided at the tip of the shaft.
- the inner diameter of an endoscope pipe line varies depending on the type of endoscope, the type of pipe line, etc., but it takes time to use a plurality of types of brushes depending on the inner diameter. Therefore, pipes of various diameters are washed by using one brush that can wash the pipe from the largest diameter to the smallest diameter.
- FIG. 11 shows a conventional cleaning brush 100.
- the brush portion 101 of this cleaning brush 100 is arranged such that a plurality of resin brush hairs 102 are arranged and sandwiched between metal strands 103 so that the brush hairs 102 form a cylindrical shape as a whole. It has been flocked.
- a tip end 104 made of resin is attached to the tip of the brush portion 101.
- the rear end of the twisted wire 103 is fixed by screwing into the front end portion of the shaft 105.
- Patent Document 1 an endoscope cleaning brush including a linear support having a single wire force and a brush portion provided at the rear end of the linear support has been proposed.
- Patent Document 1 Japanese Patent Laid-Open No. 11-169334 Disclosure of the invention
- the brush bristle 102 falls down along the inner surface of the conduit 106 when inserted into the conduit 106 having a small inner diameter close to the outer diameter of the shaft 105. For this reason, a part of the brush bristle 102 falls toward the side surface of the tip portion of the shaft 105 and overlaps the side surface of the tip portion of the shaft 105.
- the outer diameter of the overlapped portion is a value obtained by combining the outer diameter of the shaft 105 and the outer diameter of the two brush hairs 102 at the maximum. In some cases, this value may exceed the inner diameter of the pipe line 106. If the cleaning brush 100 is continuously inserted in such a state, problems such as an inability to insert due to a large insertion resistance occur.
- the brush bristle 102 is made thin in order to prevent the above-mentioned problem, the repulsive force when the brush bristle 102 hits the inner wall of the duct 106 is reduced, and the ability to remove dirt is reduced.
- the present invention provides a cleaning brush that can be used for cleaning various pipelines such as an endoscope, for example, and can prevent the resistance when inserted into the pipeline from increasing or becoming uninsertable.
- the present invention includes a long and flexible shaft, and a brush portion having brush hairs for cleaning the inside of the pipe and provided at the tip of the shaft.
- the shaft In the cleaning brush to be inserted, the shaft is in a state where the brush bristles are tilted toward the tip end side of the shaft, and the brush bristles of the shaft tip end overlap with each other.
- the outer diameter is smaller than other parts, and it has a small diameter part.
- an example of the shape of the small diameter portion is a tapered shape in which the outer diameter decreases by directing toward the tip surface of the shaft.
- FIG. 1 is a perspective view showing an endoscope cleaning brush and an endoscope to be cleaned according to a first embodiment of the present invention.
- FIG. 2 is a side view showing a part of the endoscope cleaning brush shown in FIG. 1 in section.
- FIG. 3 is a side view, partly in cross section, showing a state where the endoscope cleaning brush shown in FIG. 1 is inserted into a conduit.
- FIG. 4 is a side view, partly in section, showing a state where an endoscope cleaning brush according to a second embodiment of the present invention is inserted into a conduit.
- FIG. 5 is a perspective view of a cleaning brush assembly according to a third embodiment of the present invention.
- FIG. 6 is a perspective view showing an opening brush of the cleaning brush assembly shown in FIG. 5.
- FIG. 7 is a plan view of a part of an opening brush according to a fourth embodiment of the present invention.
- FIG. 8 is a plan view of a part of an opening brush according to a fifth embodiment of the present invention.
- FIG. 9 is a perspective view of a cleaning brush assembly according to a sixth embodiment of the present invention.
- FIG. 10 is a side view of a cleaning brush assembly according to a seventh embodiment of the present invention.
- FIG. 11 is a side view, partly in section, showing a state where a conventional endoscope cleaning brush is inserted into a conduit.
- FIG. 1 shows an overall view of the endoscope 1.
- the endoscope 1 includes an operation unit 3 provided with an operation knob 2 and the like, a flexible insertion unit 4 that is inserted into a body cavity, and a light guide that is connected to a light source device (not shown). Universal code 5 is provided.
- the endoscope 1 further includes a suction conduit 11, a water / air supply conduit 12, a forceps insertion opening 13 which is an example of an opening, and the like.
- An opening 14 used as a forceps opening or a suction opening is formed at the distal end of the insertion section 4.
- the pipe cleaning brush 21 is used.
- the cleaning brush 21 includes a long and flexible shaft 22 and a brush portion 23 provided at the tip of the shaft 22.
- the brush portion 23 includes a plurality of brush bristles 31, a winding wire 32 that is wound around the brush hair 31, and a tip tip 33 that is attached to the tip of the winding wire 32. Yes.
- the twisted wire 32 also has a metal wire force such as stainless steel (SUS) that is difficult to crack.
- SUS stainless steel
- the length L1 of the bristle 31 (the central force of the sag line 32 and the length to the tip of the bristle 31) is the length of the endoscope 1 in which the cleaning brush 21 is used.
- the inner diameter of the pipe is longer than the radius of the largest pipe. For this reason, when the cleaning brush 21 is inserted into the pipe line, the tip of the brush bristles 31 comes into contact with the inner wall of the pipe line, and elastically deforms along the inner wall of the pipe line, thereby sweeping out foreign matter adhering to the inner wall of the pipe line. Can do.
- the brush bristles 31 are formed by sandwiching and loosening a number of linear brush bristle materials having a length that is more than twice the length L1 between a pair of wires that are the material of the strands 32. It is formed almost symmetrically in the radial direction of the wire 32. That is, the brush bristles 31 are planted in a cylindrical shape around the winding line 32.
- the brush bristle material is made of synthetic resin such as polyamide resin represented by nylon.
- the bristle 31 is fixed so that the bristle 31 can be elastically deformed by pinching the bristle 31 between the winding lines 32. Any means can be used. Further, as a means for fixing the winding wire 32 to the shaft 22, other than screwing into the end face of the shaft 22 as in the present embodiment, for example, adhesion, welding, crimping, etc. may be used. Or a combination thereof.
- the tip tip 33 is fixed to the tip of the twisted wire 32, that is, the end opposite to the shaft 22.
- the material of the tip tip 33 is, for example, polypropylene resin, and an example of a fixing means for the winding wire 32 is heat welding.
- the tip tip 33 is not essential, but is used to prevent the tip end portion of the twisted wire 32 from being exposed and not damaging the inner wall of the pipe line.
- the shaft 22 is made of a flexible material, and can be bent along a pipe line to be cleaned.
- the shaft 22 has a long shaft main body 35 and a small-diameter portion 36 formed at the tip of the shaft main body 35. Are integrated.
- the small-diameter portion 36 can be formed by a mold by heating the tip portion of the shaft 22.
- the small-diameter portion 36 may be formed by cutting or other mechanical caulking, and in this case, chamfering may be performed to take a corner of the shaft front end surface 35a!
- the outer diameter D1 of the shaft main body 35 is set to a dimension that allows insertion into the smallest diameter pipe line of the endoscope 1 to be cleaned. If the shaft main body 35 is too thin, it will be easy to buckle when inserted into the conduit, and it will be slippery because the contact area with the finger will be small. For this reason, the shaft main body 35 has an outer diameter D1 that is strong enough not to be bent when inserted into a pipe line and has a certain contact area when the shaft main body 35 is gripped with a finger. Good. That is, the outer diameter D1 of the shaft main body 35 can be inserted into the smallest diameter pipe, and is preferably as thick as possible.
- the outer diameter Ds of the small-diameter portion 36 is smaller than the outer diameter D1 of the shaft main body portion 35.
- the outer diameter of the small-diameter portion 36 is Ds
- one outer diameter of the brush bristles 31 is Db
- the inner diameter of the conduit of the endoscope 1 to be cleaned is Dk (shown in FIG. 3).
- Ds + Db X 2 ⁇ Dk is satisfied with respect to the outer diameter D1 of the shaft body 35.
- the axial length L2 of the small diameter portion 36 is obtained by adding the positional force at the base of the brush bristles 31a closest to the small diameter portion 36 to the shaft tip surface 35a.
- Length L 4 force It is set to be larger than the length L1 of the bristle 31a.
- the brush bristles 31 are elastically deformed along the inner wall of the conduit 11. At this time, the brush bristles 31 overlap with only the small-diameter portion 36. In the state where the brush bristle 31 overlaps the small diameter part 36, the outer diameter of the small diameter part 36 and the two outer diameters of the brush bristle 31 are smaller than the inner diameter Dk of the pipe line 11. For this reason, the resistance when the cleaning brush 21 is inserted into the conduit 11 does not increase, and the problem that the insertion becomes impossible does not occur.
- the length L1 (shown in FIG. 2) of the brush bristles 31 is longer than the radius of the largest diameter pipe among the pipes in which the cleaning brush 21 is used. For this reason, the brush bristles 31 are pressed against the inner wall of the pipe when inserted into the pipe regardless of the inner diameter of the pipe, and the foreign matter that adheres to the inner wall of the pipe can be sprinkled. it can.
- this cleaning brush 21 it is possible to clean a pipeline having a wide range of inner diameters from a narrow pipeline close to the outer diameter of the shaft main body 35 to a thick pipeline.
- the twisted line 32 is harder than the shaft 22, but since only the twisted line 32 from the tip surface 35a of the shaft 22 to the brush part 23 can be shortened, the endoscope channel has a complicated and small radius of curvature. Can also be used for cleaning. Also, since the bristle 31 with the same thickness as the conventional one can be used, the repulsive force when the brush bristle 31 hits the inner wall of the pipe line is reduced, and the ability to remove dirt is also reduced. Yes.
- the direction in which the winding line 32 is wound is preferably the right-handed direction. This is because when the dirt attached to the brush part 23 is swollen with fingers, a force in the right-handed screw direction is usually applied to the brush part 23 or immediately, the winding line 32 is twisted in the right-handed screw direction. For example, torque is applied in the direction in which the twisting wire 32 is screwed into the shaft 22, and the fixing of the twisting wire 32 does not loosen.
- the cleaning brush 21 of this embodiment has a tapered small diameter portion 36A.
- Other configurations and operations are the same as the cleaning brush 21 of the first embodiment.
- the same reference numerals are assigned to portions common to both, and the description is omitted.
- the tapered small-diameter portion 36A has a shape in which the outer diameter decreases by directing the shaft tip surface 35a.
- the small-diameter portion 36A has an outer diameter of the small-diameter portion 36A and the brush at the portion where the tip of the brush hair 3 la is located when the brush hair 3 la closest to the shaft tip surface 35a falls to the shaft 22 side. It is formed so as to be smaller than the inner diameter of the value force pipe line 11 obtained by adding the diameters of two bristles 31.
- the tapered small-diameter portion 36A may be heated and molded by a die in the same manner as the small-diameter portion 36 of the first embodiment, or may be formed by a mechanical cage such as cutting.
- the cleaning brush 21 having the tapered small-diameter portion 36A of the present embodiment has no step between the shaft main body portion 35 and the small-diameter portion 36A.
- the strength can be increased accordingly.
- the insertion into the pipe line 11 without the possibility of being caught by a slight convex portion of the inner wall of the pipe line 11 can be performed smoothly.
- the small diameter portion 36A may have a bullet shape with a thin tip.
- the cleaning brush assembly 41 of the present embodiment includes the cleaning brush 21 (pipe cleaning brush) according to the first or second embodiment described above and an opening suitable for cleaning an opening larger than the cleaning brush 21.
- Part brush 42 In the present embodiment, portions common to the cleaning brush 21 of the first or second embodiment are denoted by the same reference numerals, and description thereof is omitted.
- the opening brush 42 is used, for example, for cleaning openings such as a suction cylinder and a forceps insertion port 13 in the suction conduit 11 of the endoscope 1 shown in FIG.
- FIG. 5 shows a cleaning brush assembly 41 in which a pipe cleaning brush 21 and an opening brush 42 are combined.
- the pipe cleaning brush 21 and the opening brush 42 are temporarily fixed to each other by a glue tape 43.
- the opening brush 42 can be separated from the pipe cleaning brush 21 by peeling off the adhesive tape 43 during use.
- latex-based water-soluble glue is used as the glue of the glued tape 43.
- the opening brush 42 includes a brush portion 45 and a handle 46 made of a synthetic resin such as polypropylene.
- the brush portion 45 is made of a synthetic resin such as nylon, for example. It comprises a plurality of brush bristles 51 and a twisted wire 52 that also has a pair of wire forces such as stainless steel.
- the winding line 52 is wound so as to sandwich the brush hair 51.
- the brush bristles 51 are formed in a cylindrical shape with the winding line 52 as the center.
- the handle 46 is formed in a flat shape and can be grasped with fingers.
- the base portion of the twisted wire 52 is welded and fixed to the handle 46 by insert molding inside the handle 46 when the handle 46 is formed.
- a flat portion 52a is formed on a part of the piercing line 52 located inside the handle 46.
- the flat portion 52a is formed into a flat shape in advance by a plastic cage such as press work before inserting the winding wire 52 into the handle 46. Since such a flat portion 52a is embedded in the handle 46, even when the opening brush 42 is rotated strongly with a finger when cleaning the opening of the endoscope, the winding line The joint between 52 and handle 46 is prevented from breaking and rotating. For this reason, even if the opening brush 42 is rotated with an unreasonable force at the time of cleaning, it is possible to safely perform the operation without fear that the twisting line 52 is detached from the handle 46 and the tip of the twisting line 52 is exposed.
- the size of the flat portion 52a of the winding line 52 does not matter. In short, the flat portion 52a has only to be large enough to fit inside the handle 46. However, the size of the flat portion 52a needs to be larger than a certain size from the viewpoint of preventing the rotation with respect to the handle 46.
- the pipe cleaning brush 21 and the opening brush 42 are connected to each other by the adhesive tape 43, so that the person in charge of the cleaning takes out the cleaning brush assembly 41 from the packaging bag. At this time, the bag cleaning force 21 and the opening brush 42 can be taken out by a single operation.
- the cleaning brush assembly 41 When the cleaning brush assembly 41 is immersed in the cleaning liquid, the glue of the glue tape 43 is melted and peeled off, so that the pipe cleaning brush 21 and the opening brush 42 are separated, so the pipe cleaning brush 21 and the opening are separated.
- the brush 42 can be used separately.
- the opening brush 42 may interfere with cleaning. Absent. Further, when cleaning the opening of the endoscope 1 by the opening brush 42, the pipe cleaning brush 21 does not get in the way. Also, the unused cleaning brush assembly 41 is used for the pipe cleaning brush 21 and the opening. Since the brush 42 is connected by the adhesive tape 43, it can be cut in half at a glance whether or not it is unused.
- the opening brush 42 has a function similar to the force that suppresses the rotation of the winding line 52 with respect to the handle 46 by providing the flat part 52a in a part of the winding line 52.
- a bent portion 55 is formed at the rear end of the winding line 52 as in the fourth embodiment shown in FIG. 7, or as in the fifth embodiment shown in FIG.
- a part 56 of the wire 52 may be formed by loosening the groin and expanding it.
- a cleaning brush assembly 41A of the sixth embodiment shown in FIG. 9 is used.
- the opening brush 42 may be directly connected to the end of the shaft 22 of the pipe cleaning brush 21 by an adhesive 60 that dissolves in water after drying.
- the cleaning brush of the present invention even when a thin pipe line close to the outer diameter of the shaft is cleaned, the insertion resistance does not increase and the cleaning does not become difficult or impossible to insert. It can be performed. Further, according to the present invention, it is possible to clean a pipeline having a wide range of inner diameters from a narrow pipeline close to the outer diameter of the shaft to a pipeline having a sufficiently larger inner diameter than the outer diameter of the shaft. It is also suitable for cleaning endoscope ducts with complicated and small radii of curvature, and does not reduce the ability to remove dirt compared to conventional brushes.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Brushes (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/793,564 US7979943B2 (en) | 2004-12-24 | 2005-12-01 | Cleaning brush |
EP05811240A EP1829474B1 (en) | 2004-12-24 | 2005-12-01 | Washing brush for cleaning a conduit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-374277 | 2004-12-24 | ||
JP2004374277A JP4632776B2 (ja) | 2004-12-24 | 2004-12-24 | 洗浄ブラシ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006067942A1 true WO2006067942A1 (ja) | 2006-06-29 |
Family
ID=36601547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/022108 WO2006067942A1 (ja) | 2004-12-24 | 2005-12-01 | 洗浄ブラシ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7979943B2 (ja) |
EP (1) | EP1829474B1 (ja) |
JP (1) | JP4632776B2 (ja) |
CN (1) | CN100586363C (ja) |
WO (1) | WO2006067942A1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US8262645B2 (en) | 2007-11-21 | 2012-09-11 | Actuated Medical, Inc. | Devices for clearing blockages in in-situ artificial lumens |
JP5279303B2 (ja) * | 2008-03-10 | 2013-09-04 | Hoya株式会社 | 内視鏡の管路内洗浄用ブラシ |
US20100012152A1 (en) * | 2008-07-21 | 2010-01-21 | Hansen Adam J | Systems and methods for trocar cleaning |
EP2356936B1 (en) * | 2008-12-09 | 2017-08-30 | Olympus Corporation | Mechanism for rotating cleaning brush |
US8468637B2 (en) | 2009-02-06 | 2013-06-25 | Endoclear Llc | Mechanically-actuated endotracheal tube cleaning device |
WO2011126812A1 (en) | 2010-03-29 | 2011-10-13 | Endoclear, Llc | Airway cleaning and visualization |
WO2010091309A1 (en) | 2009-02-06 | 2010-08-12 | Endoclear, Llc | Methods for cleaning endotracheal tubes |
US8176592B1 (en) * | 2010-01-07 | 2012-05-15 | Dale Carpenter | Methods and apparatus for removing paint from a barrel of a paintball gun |
US9445714B2 (en) | 2010-03-29 | 2016-09-20 | Endoclear Llc | Endotracheal tube coupling adapters |
DE102010026774B4 (de) | 2010-07-10 | 2017-09-21 | Karl Storz Gmbh & Co. Kg | Vorrichtung zum Reinigen von Kanälen medizinischer Instrumente |
US9486129B2 (en) * | 2012-02-29 | 2016-11-08 | Risen Star Industries, Llc | Method and apparatus for cleaning an endoscope |
US9615893B2 (en) | 2012-11-14 | 2017-04-11 | Covidien Lp | Seal cleaning obturator |
EP2928517B1 (en) | 2012-12-04 | 2021-02-17 | Endoclear LLC | Suction cleaning devices |
EP3116665B1 (en) * | 2014-03-11 | 2019-05-08 | Flex Technology, Inc. | Cannulated instrument flushing and cleaning instrument |
US10016575B2 (en) | 2014-06-03 | 2018-07-10 | Endoclear Llc | Cleaning devices, systems and methods |
USD800981S1 (en) * | 2015-10-01 | 2017-10-24 | Foamtec International Co., Ltd. | Cleaning device with tail swab |
US10709313B2 (en) | 2016-09-21 | 2020-07-14 | NCI, Inc. | Surgical instrument inspection system |
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- 2004-12-24 JP JP2004374277A patent/JP4632776B2/ja not_active Expired - Fee Related
-
2005
- 2005-12-01 CN CN200580042615A patent/CN100586363C/zh not_active Expired - Fee Related
- 2005-12-01 WO PCT/JP2005/022108 patent/WO2006067942A1/ja active Application Filing
- 2005-12-01 US US11/793,564 patent/US7979943B2/en not_active Expired - Fee Related
- 2005-12-01 EP EP05811240A patent/EP1829474B1/en not_active Expired - Fee Related
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JPS6379738U (ja) * | 1986-11-17 | 1988-05-26 | ||
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Title |
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See also references of EP1829474A4 |
Also Published As
Publication number | Publication date |
---|---|
CN101076279A (zh) | 2007-11-21 |
CN100586363C (zh) | 2010-02-03 |
EP1829474B1 (en) | 2012-04-04 |
EP1829474A1 (en) | 2007-09-05 |
US20080141473A1 (en) | 2008-06-19 |
EP1829474A4 (en) | 2009-04-15 |
JP2006175170A (ja) | 2006-07-06 |
US7979943B2 (en) | 2011-07-19 |
JP4632776B2 (ja) | 2011-02-16 |
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