WO2019146806A1 - 耳処置用器具 - Google Patents
耳処置用器具 Download PDFInfo
- Publication number
- WO2019146806A1 WO2019146806A1 PCT/JP2019/003038 JP2019003038W WO2019146806A1 WO 2019146806 A1 WO2019146806 A1 WO 2019146806A1 JP 2019003038 W JP2019003038 W JP 2019003038W WO 2019146806 A1 WO2019146806 A1 WO 2019146806A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ear
- instrument
- support portion
- support
- insertion portion
- Prior art date
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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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/20—Ear surgery
-
- 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
- A61B1/00087—Tools
-
- 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
- A61B1/018—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 for receiving instruments
-
- 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
- A61B1/06—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 illuminating 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
- A61B1/227—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 ears, i.e. otoscopes
-
- 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
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0091—Additional features; Implant or prostheses properties not otherwise provided for transparent or translucent
Definitions
- the present invention relates to instruments for ear treatment, including otoscopes.
- the external ear canal When treating the inside of the ear by a doctor, the external ear canal should be straightened so that the treatment section can be viewed straight, or a scalpel or injection needle should be inserted and projected from the tip for treatment or treatment.
- An otoscope that can be used is widely used (for example, Patent Document 1 below).
- the conventional otoscope as shown in Patent Document 1 is formed in a frusto-conical cylindrical shape, and has an insertion portion to be inserted into the ear canal.
- the inner circumferential surface of the insertion portion is formed as a smooth circumferential surface that gradually narrows from the proximal end toward the distal end.
- the doctor inserts an instrument such as a scalpel into the insertion section of the otoscope and treats while looking into the inside of the ear.
- an instrument such as a scalpel
- the edge of the tympanic membrane is incised using a scalpel or an injection without damage to the peripheral wall of the small ear hole of about 3 mm to 9 mm in diameter, or the medicine is filled. Need to Such treatment requires extremely high skill and high concentration, as it must be accurately performed with a small hand shaking of 0.3 mm or less.
- the conventional otoscope is formed on the smooth peripheral surface, there is no means for suppressing the slight tremor of the hand.
- the fulcrum may slip.
- doctors who perform the operation were limited to skilled doctors.
- this invention is made in view of the said situation, and it aims at providing the instrument for ear treatment which penetrates instruments, such as a scalpel, and makes treatment or treatment of the inside of an ear easy.
- the device for ear treatment according to the present invention is configured by improving a part of a so-called otoscope.
- the device may be simply referred to as an otoscope.
- the intention is not to limit the so-called otoscope for ear observation.
- the distal end side refers to the direction of insertion into the ear at the time of use
- the proximal side refers to the direction positioned at the operator side outside the ear at the time of use.
- the present invention comprises an insertion portion formed in a trumpet-shaped cylindrical shape and inserted into the external ear canal, and a support portion for supporting an instrument inserted into the insertion portion is any one of the inner peripheral surfaces of the insertion portion. It is provided at the part or the tip side open end. According to this configuration, blurring of the device can be suppressed by the support portion.
- the support portion of the instrument for ear treatment according to the present invention may be formed by a projection that protrudes from an inner circumferential surface of the insertion portion. According to this configuration, since the device can be supported by the support portion and the inner circumferential surface of the insertion portion, blurring of the device can be favorably suppressed.
- the support portion of the instrument for ear treatment of the present invention may be formed on the tip side in the axial direction of the insertion portion. According to this configuration, since the distance between the position of the device applied to the support portion and the tip of the device to be operated becomes short, it is easy to stabilize the operation of the device.
- the distal end side in the axial direction of the insertion portion refers to the portion up to the distal half of the insertion portion, preferably to the portion up to the distal third, and more preferably to the distal one sixth Point to the part of
- the tip end portion of the insertion portion of the instrument for ear treatment of the present invention is an inclined peripheral wall having a shape obtained by obliquely cutting a cylindrical peripheral wall with respect to the axis of the peripheral wall, and the inner periphery of the inclined peripheral wall
- the support may be formed on any part of the surface. According to this configuration, while holding the nearest portion of the portion to be treated with the inclined peripheral wall portion, the instrument is supported by the support portion formed on the inclined peripheral wall portion to perform the operation, and the peripheral wall of the insertion portion of other portions By not forming, it is possible to see the whole of the affected area more widely.
- the distal end portion of the insertion portion of the instrument for ear treatment of the present invention is an inclined peripheral wall portion having a shape obtained by obliquely cutting a cylindrical peripheral wall with respect to the axis of the peripheral wall, and the distal end portion is in the axial direction
- the support portion may be formed on the inner peripheral surface on the shortest portion side of the inclined peripheral wall portion that faces the longest portion that protrudes the most. According to this configuration, it is possible to perform the treatment while supporting the instrument by the support portion while expanding the periphery of the affected part treatment part by pressing the swelling and the like of the part other than the part to be treated with the inclined peripheral wall part.
- the said support part of the instrument for ear treatments of this invention may be provided with two or more by the said internal peripheral surface. According to this configuration, since there are a plurality of options for the support portion to be used, the direction of the insertion portion can be easily set according to the shape of the inside of the ear.
- the support portion of the device for ear treatment of the present invention may be formed in a cylindrical shape protruding from the inner circumferential surface toward the center. According to this configuration, it is possible to smoothly change the direction of the tip of the support along the circumferential surface of the support.
- the support portion of the instrument for ear treatment of the present invention may be formed as an O-shaped, V-shaped or Y-shaped support protruding from the inner circumferential surface toward the center. According to this configuration, the device can be stably placed between the center of the O-shaped support and the branched portion of the V- or Y-shaped support.
- the O-shape, V when the support portion is viewed along the axis from the proximal end opening. It is formed in the direction that looks like letter shape or Y shape.
- a recess for supporting the device may be formed on the surface of the support of the device for ear treatment of the present invention. According to this configuration, since the device is applied to the recess, it is easier to prevent the device from sliding on the support.
- the height of the support portion of the device for ear treatment of the present invention may be 1 mm or more and 5 mm or less from the inner circumferential surface. According to this configuration, it is possible to stably support the device by the support portion, and to prevent the visual field of the insertion portion from being disturbed as much as possible.
- a ridge extending around the axis may be provided on the outer peripheral surface of the insertion portion of the device for ear treatment of the present invention. According to this configuration, the rigidity of the insertion portion can be improved.
- the insertion part of the instrument for ear treatment of the present invention may be formed of a transparent material. According to this configuration, the inside of the ear can be made as bright as possible, and it is possible to indirectly view the portion pressed by the insertion portion.
- the instrument for ear treatment according to the present invention has an effect that the instrument to be inserted through the insertion portion can be supported to make the operation easier.
- the device 1 for treating an ear is for inserting the device X such as a scalpel or an injection needle in a state of being inserted in an ear canal (not shown. And a support portion 3 for supporting an instrument X inserted into the insertion portion 2.
- the insertion portion 2 is formed in a tubular shape in a trumpet shape spreading toward the hem while being slightly curved.
- the distal end side of the insertion portion 2 opens at a small diameter, whereas the proximal end side opens at a large diameter.
- the insertion portion 2 is slightly enlarged at a substantially constant rate from the tip, and is curved so as to be slightly warped from the center position in the direction of the axis L1 with respect to the axis while the hem being larger than the tip side
- the diameter is expanded so as to spread.
- the shape of the insertion portion 2 includes one formed in a substantially frusto-conical cylindrical shape.
- the diameter of the insertion portion 2 is expanded from the approximate center in the direction of the axis L1
- the diameter of the insertion portion 2 is further expanded by sandwiching the protruding strip 4 expanded in the circumferential direction around the axis L1. That is, the proximal end side of the center of the insertion portion 2 is expanded in two steps.
- the ridge 4 near the base end is formed by thickening a part of the insertion portion 2.
- a flange 5b protruding outward in the direction of the axis L1 is formed.
- the flange 5 b bulges so that its outline has an arc shape in a front view.
- the thickness of the insertion portion 2 other than the flange 5 b and the ridge 4 is not particularly limited as long as rigidity is secured, but is formed to be 0.3 mm to 1.0 mm. It is preferable that wall thicknesses other than the flange 5b of the penetration part 2 and the convex streak 4 are 0.5 mm or more and 0.8 mm or less.
- the flange 5 b and the ridges 4 are thicker than the other portions.
- the flange 5b is formed on a surface F1 substantially perpendicular to the axis L1, although not particularly limited.
- the distal end portion 6 of the insertion portion 2 has a shape obtained by roughly cutting off a peripheral wall portion of a cylinder obliquely so that the distal end surface 6a is formed on a surface F2 inclined with respect to the axis L1 as shown in FIG. It has become.
- the inclination angle of the tip end face 6a is not particularly limited, but in the example of FIG.
- the inclination angle is not particularly limited, but preferably an angle between 30 ° and 90 ° is selected. In the case of 90 °, the tip end side opening is not inclined.
- the tip portion 6 which is inclined toward the longest portion 6 t which extends the longest in the direction of the axis L 1 in the tip portion 6 constitutes an inclined peripheral wall portion K.
- the angle which the front end surface 6a and the outer peripheral surface 2b of the insertion part 2 make may be formed smoothly so that it may not sharpen.
- the inclined peripheral wall portion K can have a circular or elliptical opening in a front view, and the tip end edge is formed in an arc shape.
- the inclined peripheral wall portion K is formed in a sharp shape in which the end surface 6a is inclined toward the longest portion 6t in a bottom view.
- a support portion 3 is provided on the inner peripheral surface 2 a of the insertion portion 2 on the proximal end side of the longest portion 6 t.
- the support portion 3 is a protrusion that protrudes from the inner circumferential surface 2 a.
- the shape of the support portion 3 is a solid substantially cylindrical shape having a diameter of about 1 mm.
- the support portion 3 is in the direction in which the axis L2 of the support 3 and the axis L1 of the insertion portion 2 intersect substantially perpendicularly.
- the protrusion dimension of the support part 3 is formed in 1 mm or more and 5 mm or less.
- the protrusion dimension of the support portion 3 may be formed so as not to protrude from the surface F2 along the end face 6a or to be less than 1 mm even if it protrudes from the surface F2 in relation to the shape of the inclined peripheral wall portion K.
- the support portion 3 is formed at a position of approximately 2.8 mm on the proximal side from the longest portion 6t.
- the position of the support portion 3 may be provided at a position within about 5 mm on the proximal end side from the longest part 6 t, and is preferably formed at a position of 2.8 mm or more and 4 mm or less.
- the inclination angle of the distal end surface 6a with respect to the axis L is about 45 degrees as described above, and the support portion 3 is formed at a position of 2.8 mm proximal to the longest portion 6t. The protrusion of the support 3 from the opening is substantially avoided.
- the insertion portion 2 and the support portion 3 are integrally formed.
- the material of the insertion part 2 and the support part 3 is not particularly limited, but acrylic, nylon, polyacetal (POM), polyphenylsulfone (PPSU), polyetheretherketone (PEEK), polyethylene terephthalate (PET), polycarbonate (PC) Synthetic resins such as polylactic acid (PLA), polystyrene (PS), polyvinylidene fluoride (PVDF), polyamide imide (PAI), polyimide (PI) and metals such as stainless steel and titanium can be suitably used.
- the support portion 3 may not be integrally formed with the insertion portion 2, and may be attached to the inner circumferential surface 2 a of the insertion portion 2. Moreover, in this case, the insertion part 2 and the support part 3 may be formed of different materials.
- the support portion 3 is formed on the inner peripheral surface 2 a of the insertion portion 2, in particular, on the inner peripheral surface 2 a of the inclined peripheral wall K.
- the instrument 1 for ear treatment can further suppress hand vibration of about 0.3 mm which may occur not only by a doctor who does not have sufficient skills but also by a doctor with advanced skills and concentration. can do.
- the device 1 for ear treatment may be smoothly changed in the directions of arrows P1 and P2 shown in FIG. The effect of being able to Moreover, since the instrument for ear treatment 1 can support the instrument X with the support portion 3 as a fulcrum, when the instrument X is inserted into the insertion portion 2 and applied to the inner circumferential surface 2a, the inner circumferential surface 2a The effect of being able to suppress slippage that may occur due to the smoothness is exhibited.
- the protrusion dimension of the support portion 3 is half or less of the inner diameter of the tip portion 6 and the diameter dimension of the support portion 3 is the inner diameter of the tip portion 6 It is formed in about one-seventh of. Therefore, the instrument for ear treatment 1 can well support the instrument X while suppressing the blocking of the field of view in the insertion section 2 by the support section 3 as much as possible. Further, the ear treatment instrument 1 according to the present embodiment has the proximal end side expanded in two steps from the center of the insertion portion 2, and the convex strip 4 is provided between the flared expansion in two steps. Thus, the insertion portion 2 can be easily grasped.
- the ear treatment instrument 1 shown in the above embodiment can also be applied as follows. That is, as shown to Fig.5 (a), the recessed part 10 in alignment with the penetration direction of the insertion part 2 shown in FIG. 3 may be formed in the surrounding surface in the support part 3 formed in the column shape.
- the recess 10 may be formed on both sides of the support portion 3 centered on the axis L1 of the insertion portion 2 shown in FIG. 3, or may be formed on one circumferential wall or on the entire periphery.
- the cylindrical shape of the support portion 3 necessarily protrudes in the direction orthogonal to the axis L1 of the insertion portion 2 as long as the axis L2 of the support 3 shown in FIG. 3 projects toward the axis L1 of the insertion portion 2 It does not have to be.
- the shape of the support part 3 is not limited to a cylindrical shape, As shown to FIG.5 (b) or (c), you may form in V shape or Y shape.
- the support portion 3 is disposed parallel to the direction in which the penetration direction between the upper branches 3a, 3a of the V-shape or Y-shape or between the branch 3a and the inner circumferential surface 2a penetrates in the axis L1 direction. Good to have.
- the device X can be used stably by attaching the device X between the branches 3a, 3a or between the branch 3a and the inner circumferential surface 2a.
- the shape of the support part 3 may be formed in a substantially O-shape, as shown in FIG.
- the penetrating direction of the opening 3b at the center of the support portion 3 may be disposed in parallel with the penetrating direction in the direction of the axis L1.
- the support portion 3 allows the user of the ear treatment instrument 1 to look into the inside of the ear, and performs the operation while inserting the instrument X such as a scalpel or injection needle for treatment of the ear and supporting the instrument with the support portion 3
- the instrument X such as a scalpel or injection needle for treatment of the ear
- it may be formed in a shape other than a cylinder, an O shape, a V shape, or a Y shape.
- the support portion 3 may be a flat small piece having a thickness of about 1 mm, and the flat plate surface 3 s may be provided in a direction along the penetration direction of the insertion portion 2 .
- the peripheral wall facing the longest portion 6t of the inclined peripheral wall portion K that is, the projection of the inclined peripheral wall portion K in the direction of the axis L1 is the most You may form in the internal peripheral surface 2a by the side of the shortened shortest part 6b.
- the support portion 3 is provided at such a position, when the area other than the area to be treated is expanded, the expanded area is held down by the inclined peripheral wall K, and the area to be operated is expanded as much as possible. It becomes possible to attach the apparatus X to the support part 3 and to perform surgery.
- the support portion 3 having various shapes described above can be formed on the inner peripheral surface 2a of the insertion portion 2 Multiple may be formed.
- the surface of the support part 3 which has the various shapes mentioned above may not be smooth, and may be formed in the rough surface which can suppress that the apparatus X apply
- distal end portion 6 of the insertion portion 2 is not limited to a shape in which the cylinder is cut off obliquely to the axis L1, and may be a shape having a circumferential wall up to the same plane orthogonal to the axis L1.
- the support part may be provided in the front end side open end 2t of the insertion part 2 shown in FIG.
- the insertion portion 2 may be formed of a transparent material.
- the inside of the ear can be made as bright as possible, or the state of the portion pressed by the insertion portion 2 can be indirectly viewed.
- the instrument for ear treatment according to the present invention By using the instrument for ear treatment according to the present invention, for example, it is possible to suppress a mistake caused by movement of a subject during surgery or conversely, blurring of a practitioner's hand. Moreover, the instrument for ear treatment according to the present invention not only facilitates so-called treatment by a skilled person to suppress errors, but also allows a practitioner who does not have sufficient skills to perform surgery more easily. The effect of making it possible is also assumed. That is, by using the instrument for ear treatment according to the present invention, it is possible to carry out the surgery, which has conventionally been performed only by some skilled doctors, by more doctors.
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Abstract
Description
特許文献1に示すような従来の耳鏡は、截頭円錐筒状に形成され、外耳道に挿入される挿通部を有している。そして、挿通部の内周面は、基端から先端に向かって徐々に窄む平滑な周面に形成されている。
そこで、本発明は、上記事情に鑑みてなされたものであり、メス等の器具を挿通させて耳内を治療又は施術し易くする耳処置用の器具を提供することを目的とする。
本発明に係る耳処置用の器具は、いわゆる耳鏡の一部を改良して構成される。以下本明細書において、当該器具を、単に耳鏡と呼ぶこともある。ただし、いわゆる耳観察用の耳鏡に限定する意図ではない。
また、本明細書において、先端側とは、使用時において耳に挿入する側の方向を指し、基端側とは、使用時において耳の外部の術者側に位置する方向を指す。
この構成によれば、器具のブレを支持部により抑制することができる。
この構成によれば、支持部と挿通部の内周面とにより器具を支えることができるので、器具のブレを良好に抑制することができる。
この構成によれば、支持部に当てた器具の位置と施術をする器具の先端との距離が短くなるので、器具の操作を安定させやすい。ここで、挿通部の軸線方向の先端側とは、挿通部の先端側半分までの部分を指し、好ましくは先端側3分の1までの部分を指し、より好ましくは先端側6分の1までの部分を指す。
この構成によれば、施術を行う箇所の最も近い箇所を傾斜周壁部により押えつつ、傾斜周壁部に形成された支持部により器具を支持して施術を行い、それ以外の箇所の挿通部の周壁を形成しないことにより、患部の全体をより広く見ることを可能にする。
この構成によれば、施術を行う箇所以外の部分の膨らみ等を傾斜周壁部により押えて患部施術部の周辺を広げつつ、支持部により器具を支持して施術を行うことを可能にする。
この構成によれば、使用する支持部の選択肢が複数となるため、耳の内部の形状に応じて挿通部の向きを設定しやすくなる。
この構成によれば、器具を支持部の円周面に沿って支持部の先端の向きを円滑に変える
ことができる。
この構成によれば、器具をO字状の支持部の中心やV字状又はY字状の支持部の枝分かれした部分の間に安定的に置くことができる。ここで、前記支持部をO字状、V字状又はY字状に形成させる場合は、前記支持部を、基端側開口部から前記軸線に沿って見た場合に、O字状、V字状又はY字状の形状に見える向きに形成する。
この構成によれば、凹部に器具を当てられるため、器具が前記支持体上で滑ってしまうことをより抑制しやすい。
この構成によれば、支持部により安定的に器具を支持できるとともに、挿通部の視界を妨げることを極力防止することができる。
この構成によれば、挿通部の剛性を向上することができる。
この構成によれば、耳の内部をできるだけ明るくすることができ、また挿通部により押えられた部分を間接的に見ることが可能となる。
基端寄りの凸条4は、挿通部2の一部を厚肉にすることにより形成されている。
挿通部2のフランジ5b及び凸条4以外の肉厚は、剛性が担保される限りにおいて特に限定されないが、0.3mmから1.0mmに形成されている。挿通部2のフランジ5b及び凸条4以外の肉厚は、0.5mm以上0.8mm以下であることが好ましい。フランジ5b及び凸条4は、それら以外の部分よりも厚肉になっている。
フランジ5bは、特に限定されるわけではないが、軸線L1に対して略垂直な面F1上に形成されている。
先端部6において軸線L1方向に最も長く延びている最長部6tに向かって傾斜した先端部6は、傾斜周壁部Kを構成している。なお、先端面6aと挿通部2の外周面2bとがなす角は尖らないように滑らかに形成されていてもよい。
挿通部2の内周面2aであって、最長部6tの基端側には支持部3が設けられている。
支持部3は、支持部3の軸線L2と挿通部2の軸線L1とが略垂直に交差する方向を向いている。支持部3の突出寸法は1mm以上5mm以下に形成されている。支持部3の突出寸法は、傾斜周壁部Kの形状との関係で、先端面6aに沿う面F2から突出しない寸法か面F2から突出しても1mm未満となるように形成されているとよい。
本実施形態では、先端面6aの軸線Lに対する傾斜角度は、上述したとおり約45度になっており、支持部3が最長部6tから基端側に2.8mmの位置に形成されているため、支持部3が開口部から突出することを略回避している。
支持部3は挿通部2と一体的に形成されたものでなくてもよく、挿通部2の内周面2aに取り付けられたものであってもよい。また、この場合、挿通部2と支持部3とが異なる材質により形成されたものであってもよい。
また、耳処置用器具1は、支持部3を支点として器具Xを支えることができるので、器具Xを挿通部2内に挿入して内周面2aに当てた際に、内周面2aが平滑であることにより生じることのある滑りを抑制することができるという効果を奏する。
また、本実施形態に係る耳処置用器具1は、挿通部2の中央よりも基端側を2段階で拡開しており、2段のフレア状の拡開の間に凸条4を設けたため、挿通部2を把持し易くすることができるという効果を奏する。
すなわち、円柱形状に形成された支持部3には、図5(a)に示すように、その周面に図3に示す挿通部2の貫通方向に沿う凹部10が形成されていてもよい。この凹部10は、図3に示す挿通部2の軸線L1を中心とする支持部3の両側に形成されていても、一方の周壁に形成されていても、又は全周に形成されていてもよい。また、支持部3の円柱形状は、図3に示す支持部3の軸線L2が挿通部2の軸線L1上に向いて突出していれば、必ずしも挿通部2の軸線L1に直交する方向に突出していなくてもよい。
また、挿通部2は透明材料により形成されていてもよい。挿通部2を透明材料により形成した場合には、耳の内部をできるだけ明るくすることができ、又は挿通部2により押えられた部分の状態を間接的に見ることが可能となる。
2 挿通部
2a 内周面
3 支持部
4 凸条
5a 基端側開口部
5b フランジ
6 先端部
6a 先端面
6b 最短部
6t 最長部
F2 傾斜した面
K 傾斜周壁部
L 軸線
X 器具
Claims (12)
- ラッパ型の筒状に形成され、外耳道に挿入される挿通部を備え、
前記挿通部内に挿通させた器具を支持するための支持部が前記挿通部の内周面又は先端側開口端部に設けられている耳処置用器具。 - 前記支持部が、前記挿通部の内周面から突出する突起により形成されている請求項1に記載の耳処置用器具。
- 前記支持部が前記挿通部の軸線方向の先端側に形成されている請求項1又は2に記載の耳処置用器具。
- 前記挿通部の先端部は、円筒状の周壁を前記周壁の軸線に対して斜めに切断した形状を有する傾斜周壁部となっており、
前記傾斜周壁部の内周面に前記支持部が形成されている請求項1から3のいずれか一項
に記載の耳処置用器具。 - 前記挿通部の先端部は、円筒状の周壁を前記周壁の軸線に対して斜めに切断した形状を有する傾斜周壁部となっており、
前記先端部が軸線方向に最も突出した最長部に対向する前記傾斜周壁部の最短部側の内周面に前記支持部が形成されている請求項1から3のいずれか一項に記載の耳処置用器具。 - 前記支持部は、前記内周面に複数設けられている請求項1から5のいずれか一項に記載の耳処置用器具。
- 前記支持部が円柱状に形成されている請求項1から6のいずれか一項に記載の耳処置用器具。
- 前記支持部がO字状、V字状又はY字状に形成されている請求項1から6のいずれか一項に記載の耳処置用器具。
- 前記支持部の表面に、前記器具を支持するための凹部が形成されている請求項1から8のいずれか一項に記載の耳処置用器具。
- 前記支持部の高さが、1mm以上5mm以下である請求項1から9のいずれか一項に記載の耳処置用器具。
- 前記挿通部の外周面に前記軸線周りに延びる凸条が設けられている請求項1から10のいずれか一項に記載の耳処置用器具。
- 前記耳処置用器具が透明材料により形成されている請求項1から11のいずれか一項に記載の耳処置用器具。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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SG11202008421XA SG11202008421XA (en) | 2018-01-29 | 2019-01-29 | Ear treatment instrument |
KR1020207024990A KR20210053258A (ko) | 2018-01-29 | 2019-01-29 | 귀 처치용 기구 |
CA3092576A CA3092576A1 (en) | 2018-01-29 | 2019-01-29 | Ear treatment instrument |
EP19743599.3A EP3747411A4 (en) | 2018-01-29 | 2019-01-29 | EAR TREATMENT TOOL |
US16/965,849 US20210137740A1 (en) | 2018-01-29 | 2019-01-29 | Ear treatment instrument |
JP2019567219A JPWO2019146806A1 (ja) | 2018-01-29 | 2019-01-29 | 耳処置用器具 |
AU2019210831A AU2019210831A1 (en) | 2018-01-29 | 2019-01-29 | Ear treatment instrument |
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JP2018-012311 | 2018-01-29 | ||
JP2018012311 | 2018-01-29 |
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PCT/JP2019/003038 WO2019146806A1 (ja) | 2018-01-29 | 2019-01-29 | 耳処置用器具 |
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US (1) | US20210137740A1 (ja) |
EP (1) | EP3747411A4 (ja) |
JP (1) | JPWO2019146806A1 (ja) |
KR (1) | KR20210053258A (ja) |
CN (2) | CN110179429A (ja) |
AU (1) | AU2019210831A1 (ja) |
CA (1) | CA3092576A1 (ja) |
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WO (1) | WO2019146806A1 (ja) |
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USD966508S1 (en) * | 2020-04-30 | 2022-10-11 | Yingjie Sun | Otoscope protective cap |
USD967418S1 (en) * | 2020-05-01 | 2022-10-18 | Yingjie Sun | Double layer otoscope protective cap |
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FR659084A (fr) * | 1928-08-17 | 1929-06-24 | Appareil pour l'examen médical de diverses parties du corps | |
US1775140A (en) * | 1928-05-12 | 1930-09-09 | Erling S Platou | Otoscope |
US4335713A (en) * | 1979-02-20 | 1982-06-22 | Olympus Optical Co., Ltd. | Otoscope |
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JPH10276978A (ja) | 1997-04-03 | 1998-10-20 | Shinka:Kk | 診察用器具 |
JP2002534202A (ja) * | 1999-01-12 | 2002-10-15 | メッツォーリ ジョルジオ | 耳の自己検査装置 |
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US1346200A (en) * | 1920-01-24 | 1920-07-13 | Albert S Harris | Diagnostic instrument |
US3020912A (en) * | 1958-10-06 | 1962-02-13 | Martin H Chester | Motor driven surgical knife |
US6390975B1 (en) * | 1998-07-16 | 2002-05-21 | Walls Precision Instruments, Llc | Apparatus and methods for performing otoscopic procedures |
KR200336532Y1 (ko) * | 2003-08-11 | 2003-12-24 | 임덕식 | 검이경 장착용 귀이개 |
US20110166421A1 (en) * | 2010-01-01 | 2011-07-07 | Pejman Katiraei | Enhanced Otoscope Cover |
US20130150675A1 (en) * | 2011-12-07 | 2013-06-13 | Lillian Folley | Transparent Speculum Apparatus and System |
-
2019
- 2019-01-29 CN CN201910086519.9A patent/CN110179429A/zh active Pending
- 2019-01-29 JP JP2019567219A patent/JPWO2019146806A1/ja active Pending
- 2019-01-29 AU AU2019210831A patent/AU2019210831A1/en not_active Abandoned
- 2019-01-29 WO PCT/JP2019/003038 patent/WO2019146806A1/ja unknown
- 2019-01-29 EP EP19743599.3A patent/EP3747411A4/en not_active Withdrawn
- 2019-01-29 CN CN201920163063.7U patent/CN210408356U/zh active Active
- 2019-01-29 US US16/965,849 patent/US20210137740A1/en not_active Abandoned
- 2019-01-29 SG SG11202008421XA patent/SG11202008421XA/en unknown
- 2019-01-29 KR KR1020207024990A patent/KR20210053258A/ko unknown
- 2019-01-29 CA CA3092576A patent/CA3092576A1/en active Pending
Patent Citations (6)
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US1775140A (en) * | 1928-05-12 | 1930-09-09 | Erling S Platou | Otoscope |
FR659084A (fr) * | 1928-08-17 | 1929-06-24 | Appareil pour l'examen médical de diverses parties du corps | |
US4335713A (en) * | 1979-02-20 | 1982-06-22 | Olympus Optical Co., Ltd. | Otoscope |
US4993406A (en) * | 1989-09-14 | 1991-02-19 | Reynolds William V | Device for dampening uncontrolled movement of surgical instruments |
JPH10276978A (ja) | 1997-04-03 | 1998-10-20 | Shinka:Kk | 診察用器具 |
JP2002534202A (ja) * | 1999-01-12 | 2002-10-15 | メッツォーリ ジョルジオ | 耳の自己検査装置 |
Non-Patent Citations (1)
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See also references of EP3747411A4 |
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Publication number | Publication date |
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SG11202008421XA (en) | 2020-09-29 |
AU2019210831A1 (en) | 2020-09-24 |
CA3092576A1 (en) | 2019-07-29 |
CN210408356U (zh) | 2020-04-28 |
JPWO2019146806A1 (ja) | 2021-08-05 |
EP3747411A1 (en) | 2020-12-09 |
US20210137740A1 (en) | 2021-05-13 |
KR20210053258A (ko) | 2021-05-11 |
CN110179429A (zh) | 2019-08-30 |
EP3747411A4 (en) | 2021-11-03 |
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