WO1994009701A1 - Self-luminous laryngoscope and stroboscopic larynx inspection device - Google Patents
- ️Wed May 11 1994
WO1994009701A1 - Self-luminous laryngoscope and stroboscopic larynx inspection device - Google Patents
Self-luminous laryngoscope and stroboscopic larynx inspection deviceInfo
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Publication number
- WO1994009701A1 WO1994009701A1 PCT/JP1992/001409 JP9201409W WO9409701A1 WO 1994009701 A1 WO1994009701 A1 WO 1994009701A1 JP 9201409 W JP9201409 W JP 9201409W WO 9409701 A1 WO9409701 A1 WO 9409701A1 Authority
- WO
- WIPO (PCT) Prior art keywords
- light source
- self
- mirror
- light
- laryngoscope Prior art date
- 1992-10-30
Links
Classifications
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- 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
- A61B1/267—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 respiratory tract, e.g. laryngoscopes, bronchoscopes
- A61B1/2673—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 respiratory tract, e.g. laryngoscopes, bronchoscopes for monitoring movements of vocal chords
Definitions
- the present invention relates to a self-luminous laryngoscope and a spout laryngeal observation device that accurately illuminate a subject's larynx so that vocal cords and the like can be accurately observed without skill.
- a laryngoscope 1 shown in FIG. 1 is a medical device for observing a subject's vocal cords in combination with a forehead mirror 2.
- the laryngoscope 1 has a handle 3 having a length inserted into the throat of a subject, and a coin dog reflecting mirror 4 inclined at an appropriate angle fixed to the tip of a handle 3.
- the light emitted by the freely illuminating light source 5 in the examination room is received by the frame mirror 2 mounted on the head of the examiner, guided into the subject's mouth, and further inserted into the mouth. It is reflected again by the reflector 4 and illuminates the vocal cords 6.
- the image of the vocal cords 6 illuminated by light is reflected by the reflector 4 and then passes through the central hole 2a of the forehead mirror 2 and enters the examiner's view.
- the examiner must use a gauze 14 to pull the tongue of the subject that interferes with the examination forward and operate the laryngoscope 1 with the free hand.
- a slight optical path shift causes image skipping. Therefore, considerable skill is required to adjust the angles of both the forehead mirror 2 and the laryngoscope 1 to an angle suitable for the examination and to properly capture the image of the vocal cord 6.
- the examiner himself has a drawback in that the glare received from the light source 5 hinders the clear vision of the observation target. Furthermore, even if a patient, such as a bedridden patient, is to be examined while lying on his or her back, a normal inspection cannot be performed without the help of a fiberscope or the like, because a proper inspection system and light source cannot be obtained. Met. Another problem is that the laryngoscope 1 is liable to be clouded by the subject's exhalation, and has to be wiped off whenever the reflecting surface becomes cloudy, resulting in poor inspection efficiency.
- FIG. 2 shows a conventional laryngoscope 7 with a light bulb, in which a miniature light bulb 8 is attached to the connection between the handle 3 and the reflector 4. Since the miniature bulb 8 illuminates the vocal cords 6 directly from above, the lighting environment of the vocal cords 6 and its surroundings is remarkably improved.
- the miniature bulb 8 is mounted in an exposed manner, the light enters the examiner's eyes, and there is a problem in glare.
- the laryngoscope 7 is cleaned with alcohol for disinfecting after use, the miniature bulb 8 and its lead wire are easily damaged by alcohol, shortening the life of electrical components, and have a drawback that alcohol cleaning is not possible.
- Other cleaning methods have the problem that cleaning takes too long.
- the reflector 4 is locally heated by the heat generated by the miniature bulb 8, the intensively heated portion of the reflector 4 may touch the larynx and cause burns to the subject.
- the heated reflector 4 is convenient for eliminating cloudiness due to exhalation, since the miniature bulb 8 itself is not sealed, heat dissipation to the surroundings is remarkable, and clouding is eliminated. There was a problem that the effect was limited.
- a laryngoscope 9 with a light bulb in which a miniature bulb 8 is attached to the tip of the reflector 4 instead of the connection between the handle 3 and the reflector 4 is also known.
- laryngoscopes are also used for vocal cord examinations, which use stroboscopy to observe vocal cord movements.
- the stroboscopic copy presses the microphone 10 against the subject's throat, and the vibration of the electrically picked-up vocal cords, for example, about 400 Hz, is generated by the stroboscopic light. 1 and the light emitted from the tip of the optical fiber 1 2 is synchronized with the vibration of the vocal cords 6 and blinks.
- the vocal cords 6 are illuminated by a strobe light, so that when the endoscope 13 provided in the middle of the optical fiber 12 is viewed, the movement of the vocal cords 6 is apparently stopped or observed as a slow movement close to it. can do.
- the image of the vocal cord 6 observed by the endoscope 13 is composed of the periodic points 15 a, 15 b, and 15 c 15 of the vibration waveform 15 of the vocal cord 6.
- the flash fires intermittently only in the case of d Open 6a, medium open 6b, slightly open 6c, fully closed 6d, and vocal cord movement as a whole can be observed as a slow-motion strobe image.
- conventional stroboscopy since the optical fiber 12 is inserted through the nostril into the throat, the subject who is stimulated by the nasal mucosa has considerable pain, and the endoscope 13 has a large field of view. There was a drawback that the whole area was difficult to observe due to the small range.
- An object of the present invention is to provide a self-luminous laryngoscope apparatus which solves the technical problems of the above conventional example.
- one configuration of the present invention includes a half mirror, a reflecting mirror arranged to define a tightly closed room between the half mirror, a light source arranged in the closed room, the half mirror or the reflecting mirror.
- the present invention relates to a self-luminous laryngoscope apparatus including a grip portion attached to and fixed to a mirror.
- Other configurations of the present invention include a self-luminous laryngoscope apparatus using a power supply for a light source as an external power supply, and a self-luminous laryngoscope apparatus using a battery-type built-in power supply for a light source.
- the present invention provides a device arranged at a position where the vocal cords can be observed by the self-luminous laryngoscope device, a microphone pressed against the larynx to detect the frequency of the vocal cords, and a signal of the vocal cord frequency. And a controller for outputting a strobe light emission signal of a predetermined frequency corresponding to the frequency and supplying the signal to the self-emission laryngoscope apparatus.
- the light is reflected only once by the half mirror, so the operation of the laryngoscope is easy and no skill is required for the inspection.
- the light from the light source illuminates the vocal cords, but does not reach the examiner's eyes, so that the examiner is not obstructed by the glare.
- the power source is a battery-powered built-in power source, portability is improved and operability is also improved.
- Fig. 1 is a view of observing the subject's vocal cords using a conventional external light source type laryngoscope and a forehead mirror,
- FIG. 2 is a perspective view showing an example of a conventional laryngoscope with a light bulb
- FIG. 3 is a perspective view showing an example of a laryngoscope with a bulb in which a miniature bulb light source is attached to the tip of a reflector,
- Fig. 4 is a diagram of observing vocal cord movement by conventional stroboscopy
- Fig. 5 is a diagram generally showing the principle of observing vocal cord movement by stroboscopy
- FIG. 6 is a view of observing the vocal cords of a subject using the first embodiment of the self-luminous laryngoscope apparatus of the present invention
- FIG. 7 is a perspective view of the self-luminous laryngoscope apparatus shown in FIG. 6,
- FIG. 8 is an enlarged vertical sectional view of a main part of the self-luminous laryngoscope shown in FIG. 6,
- FIG. 9 is an exploded perspective view of a main part of the self-luminous laryngoscope shown in FIG. 6,
- FIG. 10 is a side view partially showing a second embodiment of the self-luminous laryngoscope apparatus of the present invention.
- FIG. 11 is a view of observing the movement of the vocal cords by stroboscopy using the self-luminous laryngoscope apparatus of the present invention.
- the self-luminous laryngoscope apparatus 21 shown in FIGS. 6 and 7 is a closed chamber surrounded by a reflecting mirror 24 and a half mirror 25 at the tip of a handle 23 extending freely from the inside of the gripping part 22. 26 is formed. Further, the miniature bulb 27 provided in the sealed room 26 is connected to a commercial AC power supply or a DC power supply installed at a suitable place in the examination room via a power cord 28 extending through the handle 23 and the gripping portion 22. Connected to an external power supply (not shown) such as a stabilized power supply. The handle 23 is accommodated in the grip portion 22 so as to be extendable and contractible, and the extension length is fixed by an adjusting screw 29. As shown in FIG.
- the reflecting mirror 24 forms a paraboloid and is curved, and its inner surface is a light reflecting surface. For this reason, the light emitted by the miniature bulb 27 provided at the focal position of the paraboloid is reflected by the light reflecting surface and then irradiated forward as substantially parallel light, and the parallel light and the miniature bulb 27 emit light.
- the direct light is irradiated forward.
- the half mirror 25 has an outer surface coated with a half mirror and an inner surface coated with an anti-reflection coating, and transmits light from the rear while reflecting light from the front as a semi-transmissive mirror is called. Has functions. Therefore, the light emitted from the miniature ball 27 passes through the half mirror 25 and is irradiated forward.
- a blind 30 for blocking light transmission is provided to prevent light from leaking along the handle 23 to the opposite side of the miniature bulb 27. Therefore, there is no problem that the examiner dazzles the light from the miniature bulb 27.
- the half mirror 25 and the reflecting mirror 24 are tightly adhered to each other at an outer peripheral portion of the elliptical reflecting mirror 24 to form a unit 32.
- the unit 32 is screw-fitted to the outer periphery of the miniature bulb holding portion 31 at the tip of the handle 23 via a sealing O-ring (not shown) or the like. For this reason, when the miniature bulb 27 is cut, the miniature bulb 27 may be replaced after turning the unit 32 in the direction in which the screw is loosened to remove it from the tip of the handle 23.
- the self-luminous laryngoscope device 21 When using the self-luminous laryngoscope device 21, turn on the power switch (not shown) of the external power source and turn on the miniature bulb 27 as shown in FIG. And the gripper 2 Hold 2 firmly and insert it into the oral cavity from the distal end of the device to illuminate the larynx. At this time, the light emitted from the miniature bulb 27, both the light reflected by the reflecting mirror 24 and the direct light, passes through the half mirror 25 and illuminates the vocal cords 6. The illuminated image of the vocal cord 6 is reflected by the half mirror 25 into the field of view of the examiner, and the necessary examination is performed.
- the self-luminous laryngoscope apparatus 21 has a miniature bulb 27 stored in a closed chamber 26, and blindly irradiates the examiner with light. Since the 0 is blocked, the examiner does not feel any dazzling and can concentrate on the examination. Also, even if the self-luminous laryngoscope device 21 is used and then cleaned with alcohol for disinfecting, the miniature bulb 27 and the power cord 28 do not come into contact with the alcohol, only the half mirror 25 and the reflector. Only the exposed parts, such as 24 or handle 23, are subject to disinfection and do not shorten the life of electrical components. In addition, the cleaning operation is also easy because it is only necessary to wipe the entire surface with a gauze soaked in an alcohol solution.
- the reflecting mirror 24 and the half mirror 25 are gradually heated from the inside by the heat generated by the miniature bulb 27, but the heat dissipation area of both can be calculated simply by using the conventional laryngoscope with a light bulb. Since there is about twice as large as, 9, there is no danger that only a part will be heated and burn the subject's larynx. Further, since the uniformly heated half mirror 25 is hardly clouded by the exhalation, the image of the vocal cord 6 reflected by the half mirror 25 is not clouded.
- the power supply of the miniature bulb 27 was used as an external power supply.
- Several batteries 43 may be incorporated in 2.
- Reference numeral 4 denotes a lid that can be attached and detached when replacing the battery. At the same time, the lid is turned on and clicked to turn on or off the miniature bulb.
- the above-mentioned self-luminous laryngoscope device 21 can be used as a stroboscopic device.
- the control device 45 synchronizes with the vibration of the vocal cords detected by the microphone mouth phone 10 pressed against the subject's throat, Turn the miniature bulb power on and off.
- the miniature bulb 27 flashes strobe-like in accordance with the movement of the vocal cords, and the vibration of the intermittently illuminated vocal cords can be observed as a strobe image.
- unlike conventional stroboscopy there is no need to insert an optical fiber 12 or the like through the nostril of the subject, so that the subject does not feel pain and the examination is quick and easy. It is possible.
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Abstract
A self-luminous laryngoscope wherein a reflex mirror (24) is so arranged as to define a tightly closed chamber (26), between the chamber and a half-mirror (25), a light source (27) is arranged in said tightly closed chamber (26) so as to emit light therefrom, and the light is controlled to reflect only once at the half-mirror (25) in the light path from the light source to the eye of an examiner. Because of independance of the external light source, operation is easy for even those who are not skilled and inspection of a vocal cord (6) is possible when a man to be inspected lies on his back. Heat of the light source (27) accumulates in the closed chamber (26) and thus fully exhibits condensation preventive function on the half-mirror (25). Further, since the light source (27) is hermetically enclosed in the tightly closed chamber (26), the whole of the device can be sterilized with alcohol after inspection, without damage to the electrical parts such as the light source (27). Heat generated by the light source (27) is dispersed and transferred to both the half-mirror (25) and the reflex mirror (24), thereby causing no fear of burn arising from localized heating.
Description
明 細 書 自発光式喉頭鏡及びストロボ式喉頭観察装置 技術分野 Description Self-luminous laryngoscope and strobe-type laryngeal observation device
本発明は、 被検者の喉頭を的確に照明し、 熟練によらず声帯等を正確に観察で きるようにした自発光式喉頭鏡及びスト口ボ式喉頭観察装置に関する。 背景技術 TECHNICAL FIELD The present invention relates to a self-luminous laryngoscope and a spout laryngeal observation device that accurately illuminate a subject's larynx so that vocal cords and the like can be accurately observed without skill. Background art
第 1図に示す喉頭鏡 1は、 額帯鏡 2と併用して被検者の声帯を観察する医療器 具である。 この喉頭鏡 1は、 被検者の咽喉に挿入する長さをもった柄 3の先端に、 適当な角度で傾斜する硬貨犬の反射鏡 4を固着したものである。 検査室内の自在 照明型の光源 5が発する光は、 検者が自身の頭部に装着した額帯鏡 2にて受けら れて被検者の口腔内に導かれ、 さらに口腔の奥まで挿入した反射鏡 4で再び反射 されて声帯 6を照らす。 光に照らされた声帯 6の像は、 反射鏡 4にて反射された のち、 額帯鏡 2中央の孔 2 aを貫通して検者の視界に入る。 この場合、 検者は検 査の邪魔になる被検者の舌をガーゼ 1 4を使って前方に引っ張り、 空いた方の手 で喉頭鏡 1を操作しなければならない。 しかも、 光源 5と検者の眼球とを結ぶ光 路中で計 3回の光反射が行われるために、 僅かな光路ずれが像飛びを招くことに なる。 従って、 額帯鏡 2と喉頭鏡 1の両方の角度を検査に適した角度に調節して 声帯 6の像を的確に捕らえるには、 相当の熟練が必要である。 また、 声帯 6に届 く光量を増大させようとして光源 5の照度を上げた場合、 検者自身も光源 5から 受ける眩しさから観察対象の明視が妨げられるといった欠点があった。 さらに、 寝たきり患者などの被検者を仰臥させた状態で検査しょうとしても、 適切な検査 態勢と光源が得られないために、 実際にはファイバスコープ等の助けを借りない 限り通常の検査は無理であった。 さらに、 喉頭鏡 1が被検者の吐息で曇りやすい のも問題であり、 反射面が曇るつど拭き取らねばならないために、 検査能率も悪 いといった欠点があった。 —方、 外部光源の照明性の悪さに配慮して喉頭鏡自体に光源を一体化させたも のも登場している。 第 2図は、 従来の電球付き喉頭鏡 7を示すもので、 柄 3と反 射鏡 4の接続部分に豆電球 8が取り付けてある。 このものは、 豆電球 8が声帯 6 を上方から直接照らすために、 声帯 6及びその周辺の照明環境が格段に改善され る。 A laryngoscope 1 shown in FIG. 1 is a medical device for observing a subject's vocal cords in combination with a forehead mirror 2. The laryngoscope 1 has a handle 3 having a length inserted into the throat of a subject, and a coin dog reflecting mirror 4 inclined at an appropriate angle fixed to the tip of a handle 3. The light emitted by the freely illuminating light source 5 in the examination room is received by the frame mirror 2 mounted on the head of the examiner, guided into the subject's mouth, and further inserted into the mouth. It is reflected again by the reflector 4 and illuminates the vocal cords 6. The image of the vocal cords 6 illuminated by light is reflected by the reflector 4 and then passes through the central hole 2a of the forehead mirror 2 and enters the examiner's view. In this case, the examiner must use a gauze 14 to pull the tongue of the subject that interferes with the examination forward and operate the laryngoscope 1 with the free hand. In addition, since light is reflected three times in the optical path connecting the light source 5 and the examiner's eyeball, a slight optical path shift causes image skipping. Therefore, considerable skill is required to adjust the angles of both the forehead mirror 2 and the laryngoscope 1 to an angle suitable for the examination and to properly capture the image of the vocal cord 6. Further, when the illuminance of the light source 5 is increased in order to increase the amount of light reaching the vocal cords 6, the examiner himself has a drawback in that the glare received from the light source 5 hinders the clear vision of the observation target. Furthermore, even if a patient, such as a bedridden patient, is to be examined while lying on his or her back, a normal inspection cannot be performed without the help of a fiberscope or the like, because a proper inspection system and light source cannot be obtained. Met. Another problem is that the laryngoscope 1 is liable to be clouded by the subject's exhalation, and has to be wiped off whenever the reflecting surface becomes cloudy, resulting in poor inspection efficiency. —On the other hand, some laryngoscopes have a light source integrated into the laryngoscope itself in consideration of the poor illumination of the external light source. FIG. 2 shows a conventional laryngoscope 7 with a light bulb, in which a miniature light bulb 8 is attached to the connection between the handle 3 and the reflector 4. Since the miniature bulb 8 illuminates the vocal cords 6 directly from above, the lighting environment of the vocal cords 6 and its surroundings is remarkably improved.
しかしながら、 豆電球 8が露出して取り付けられているため、 その光が検者の 眼にも入ってしまい、 眩しさの点で問題がある。 また、 喉頭鏡 7を使用後に消毒 用アルコールで洗浄するさいに、 豆電球 8とそのリ一ド線がアルコールにより痛 みやすく、 電気系部品の寿命を縮める欠点があり、 またアルコール洗浄によらな い他の洗浄法では、 洗浄に時間がかかり過ぎるといった問題があった。 さらにま た、 反射鏡 4は豆電球 8が発する熱でもって局部的に熱せられるため、 反射鏡 4 の集中的に加熱された箇所が喉頭に触れて被検者に火傷を負わせる恐れがあり、 また熱せられた反射鏡 4は吐息による曇りの解消には好都合であるとは言うもの の、 豆電球 8自体が密閉されていないために、 周囲への熱放散が顕著であり、 曇 り解消効果にも限界があるといつた問題があつた。 However, since the miniature bulb 8 is mounted in an exposed manner, the light enters the examiner's eyes, and there is a problem in glare. In addition, when the laryngoscope 7 is cleaned with alcohol for disinfecting after use, the miniature bulb 8 and its lead wire are easily damaged by alcohol, shortening the life of electrical components, and have a drawback that alcohol cleaning is not possible. Other cleaning methods have the problem that cleaning takes too long. Furthermore, since the reflector 4 is locally heated by the heat generated by the miniature bulb 8, the intensively heated portion of the reflector 4 may touch the larynx and cause burns to the subject. Although the heated reflector 4 is convenient for eliminating cloudiness due to exhalation, since the miniature bulb 8 itself is not sealed, heat dissipation to the surroundings is remarkable, and clouding is eliminated. There was a problem that the effect was limited.
また、 第 3図に示したように、 豆電球 8を柄 3と反射鏡 4の接続部分ではなく、 反射鏡 4の先端部に取り付けた電球付き喉頭鏡 9も知られているが、 このものも 上記と同様の問題や欠点があつた。 Further, as shown in FIG. 3, a laryngoscope 9 with a light bulb in which a miniature bulb 8 is attached to the tip of the reflector 4 instead of the connection between the handle 3 and the reflector 4 is also known. Had the same problems and disadvantages as above.
—方、 ストロボスコピーにより声帯の動きを観察する声帯検査法にも喉頭鏡が 用いられる。 ストロボスコピーは、 例えば第 4図に示したように、 被検者の喉に マイクロフォン 1 0を圧し当て、 電気的に拾った声帯の音声周波数例えば 4 0 0 H z程度の振動をストロボ発光器 1 1に送り込み、 光ファイバ 1 2先端から発す る光を声帯 6の振動に同調させて点滅させる。 これにより、 声帯 6はストロボ照 明されるため、 光ファイバ 1 2の中途に設けた内視鏡 1 3を観いたときに、 声帯 6の動きを見かけ上止めるか又はそれに近い緩慢な動きとして観察することがで きる。 すなわち、 内視鏡 1 3により観察される声帯 6の像は、 第 5図に示したよ うに、 声帯 6の振動波形 1 5のうち周期的ポイント 1 5 a , 1 5 b , 1 5 c 1 5 d · · ·のときのみストロボが間欠的に発光して、 その都度声帯 6の動きを全 開時 6 a、 中開時 6 b、 微開時 6 c、 全閉時 6 dとして順次観察し、 全体として 声帯の動きをスローモーションのストロボ画像として観察することができる。 し かし、 従来のストロボスコピーは、 光ファイバ 1 2を鼻孔から咽喉内に差し込む ために、 鼻粘膜を刺激される被検者の苦痛はかなりのものがあり、 また内視鏡 1 3による視野範囲が狭いために全体観察が難しいといった欠点があった。 On the other hand, laryngoscopes are also used for vocal cord examinations, which use stroboscopy to observe vocal cord movements. For example, as shown in Fig. 4, the stroboscopic copy presses the microphone 10 against the subject's throat, and the vibration of the electrically picked-up vocal cords, for example, about 400 Hz, is generated by the stroboscopic light. 1 and the light emitted from the tip of the optical fiber 1 2 is synchronized with the vibration of the vocal cords 6 and blinks. As a result, the vocal cords 6 are illuminated by a strobe light, so that when the endoscope 13 provided in the middle of the optical fiber 12 is viewed, the movement of the vocal cords 6 is apparently stopped or observed as a slow movement close to it. can do. That is, as shown in FIG. 5, the image of the vocal cord 6 observed by the endoscope 13 is composed of the periodic points 15 a, 15 b, and 15 c 15 of the vibration waveform 15 of the vocal cord 6. The flash fires intermittently only in the case of d Open 6a, medium open 6b, slightly open 6c, fully closed 6d, and vocal cord movement as a whole can be observed as a slow-motion strobe image. However, in conventional stroboscopy, since the optical fiber 12 is inserted through the nostril into the throat, the subject who is stimulated by the nasal mucosa has considerable pain, and the endoscope 13 has a large field of view. There was a drawback that the whole area was difficult to observe due to the small range.
発明の開示 Disclosure of the invention
本発明は、 上記従来例の技術的課題を解決した自発光式喉頭鏡装置を提供する ことを目的とする。 An object of the present invention is to provide a self-luminous laryngoscope apparatus which solves the technical problems of the above conventional example.
そのため、 一の本発明の構成は、 ハーフミラーと、 該ハーフミラ一との間で密 閉室を画成するよう配された反射鏡と、 該密閉室内に配された光源と、 該ハーフ ミラー又は反射鏡に取付固着された把持部分とを具備した自発光式喉頭鏡装置に 係る。 Therefore, one configuration of the present invention includes a half mirror, a reflecting mirror arranged to define a tightly closed room between the half mirror, a light source arranged in the closed room, the half mirror or the reflecting mirror. The present invention relates to a self-luminous laryngoscope apparatus including a grip portion attached to and fixed to a mirror.
本発明の他の構成には、 光源のための電源を外部電源とした自発光式喉頭鏡装 置や、 光源のための電源をバッテリ式の内蔵電源とした自発光式喉頭鏡装置があ る Other configurations of the present invention include a self-luminous laryngoscope apparatus using a power supply for a light source as an external power supply, and a self-luminous laryngoscope apparatus using a battery-type built-in power supply for a light source.
また、 本発明には、 上記の自発光式喉頭鏡装置で声帯を観察し得る位置に配置 される該装置と、 喉頭部に圧し当てられ声帯の周波数を検出するマイクロフォン と、 該声帯周波数の信号を入力され、 その周波数に対応した所定の周波数のスト ロボ発光用信号を出力して前記自発光式喉頭鏡装置へ供給する制御装置とから構 成したストロボ式喉頭観察装置が含まれる。 発明の効果 In addition, the present invention provides a device arranged at a position where the vocal cords can be observed by the self-luminous laryngoscope device, a microphone pressed against the larynx to detect the frequency of the vocal cords, and a signal of the vocal cord frequency. And a controller for outputting a strobe light emission signal of a predetermined frequency corresponding to the frequency and supplying the signal to the self-emission laryngoscope apparatus. The invention's effect
本発明の構成によれば、 次に示す利点がある。 According to the configuration of the present invention, there are the following advantages.
① 光源から検者の眼に至る光路内で、 光反射はハーフミラーにおける 1回だけ であるから、 喉頭鏡の操作が容易であり、 検査に熟練は不要である。 ① In the optical path from the light source to the examiner's eye, the light is reflected only once by the half mirror, so the operation of the laryngoscope is easy and no skill is required for the inspection.
② 外部光源に左右されないので、 被検者が仰臥した姿勢でもって声帯の検査が 可能である。 ② Since it is not affected by external light sources, it is possible to examine the vocal cords with the subject in a supine position.
③ ハーフミラーと反射鏡で画成された密閉室内に光源の熱がこもり、 ハーフミ ラーを効率的に暖めるため、 ハーフミラーの曇り止め機能が十分に発揮される。③ The heat of the light source is trapped in the enclosed room defined by the half mirror and the reflecting mirror. In order to heat the mirror efficiently, the anti-fog function of the half mirror is fully demonstrated.
④ 光源からの光は声帯を照明するが、 検者の眼には至らないので、 検者が眩し さで声帯の明視を妨げられることはない。 光 The light from the light source illuminates the vocal cords, but does not reach the examiner's eyes, so that the examiner is not obstructed by the glare.
⑤ 光源が密閉室内に密閉されているため、 検査後に喉頭鏡をアルコール消毒し ても、 光源等の電気部品が傷むことはない。 た め Since the light source is sealed in a closed room, even if the laryngoscope is alcohol-sterilized after the inspection, the light source and other electrical components will not be damaged.
⑥ 光源が発する熱は、 ハーフミラーと反射鏡に均等に分散伝導するため、 局部 的な加熱による火傷の心配がない。 熱 The heat generated by the light source is evenly distributed to the half mirror and the reflecting mirror, so there is no risk of burns due to local heating.
⑦ 電源をバッテリ式の内蔵電源とした場合は、 携帯性が向上し、 同時に操作性 も向上する。 図面の簡単な説明 場合 If the power source is a battery-powered built-in power source, portability is improved and operability is also improved. BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 従来の外部光源式の喉頭鏡と額帯鏡とを使用して被検者の声帯を観 察する図、 Fig. 1 is a view of observing the subject's vocal cords using a conventional external light source type laryngoscope and a forehead mirror,
第 2図は、 従来の電球付き喉頭鏡の一例を示す斜視図、 FIG. 2 is a perspective view showing an example of a conventional laryngoscope with a light bulb,
第 3図は、 豆電球光源を反射鏡先端に取り付けた電球付き喉頭鏡の一例を示す 斜視図、 FIG. 3 is a perspective view showing an example of a laryngoscope with a bulb in which a miniature bulb light source is attached to the tip of a reflector,
第 4図は、 従来のストロボスコピーにより声帯の動きを観察する図、 第 5図は、 ストロボスコピーにより声帯の動きを観察する原理を一般的に示す 図、 Fig. 4 is a diagram of observing vocal cord movement by conventional stroboscopy, Fig. 5 is a diagram generally showing the principle of observing vocal cord movement by stroboscopy,
第 6図は、 本発明の自発光式喉頭鏡装置の第 1実施例を使用して被検者の声帯 を観察する図、 FIG. 6 is a view of observing the vocal cords of a subject using the first embodiment of the self-luminous laryngoscope apparatus of the present invention,
第 7図は、 第 6図に示した自発光式喉頭鏡装置の斜視図、 FIG. 7 is a perspective view of the self-luminous laryngoscope apparatus shown in FIG. 6,
第 8図は、 第 6図に示した自発光式喉頭鏡装置の要部拡大縦断面図、 第 9図は、 第 6図に示した自発光式喉頭鏡の要部の分解斜視図、 FIG. 8 is an enlarged vertical sectional view of a main part of the self-luminous laryngoscope shown in FIG. 6, FIG. 9 is an exploded perspective view of a main part of the self-luminous laryngoscope shown in FIG. 6,
第 1 0図は、 本発明の自発光式喉頭鏡装置の第 2実施例を一部断面して示す側 面図、 FIG. 10 is a side view partially showing a second embodiment of the self-luminous laryngoscope apparatus of the present invention,
第 1 1図は、 本発明の自発光式喉頭鏡装置を使用して、 ストロボスコピーによ り声帯の動きを観察する図である。 発明を実施するための最良の形態 FIG. 11 is a view of observing the movement of the vocal cords by stroboscopy using the self-luminous laryngoscope apparatus of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
第 6, 7図に示す自発光式喉頭鏡装置 2 1は、 把持部 2 2内から調整自在に延 出する柄 2 3の先端に、 反射鏡 2 4とハーフミラー 2 5で囲つた密閉室 2 6を形 成してある。 さらに、 この密閉室 2 6内に設けた豆電球 2 7を、 柄 2 3と把持部 2 2を挿通して延びる電源コード 2 8を介して、 診察室内適所に設置された商用 交流電源又は直流安定化電源等の外部電源 (図示せず) に接続してある。 柄 2 3 は、 把持部 2 2内に伸縮可能に収納してあり、 調節ねじ 2 9により伸縮長を固定 される。 第 8図に示したように、 反射鏡 2 4は放物面を形成して湾曲しており、 その内面は光反射面とされている。 このため、 放物面の焦点位置に設けた豆電球 2 7が発する光は、 光反射面にて反射されたのちほぼ平行光として前方に照射さ れ、 この平行光と豆電球 2 7が発する直接光とが前方に照射されることになる。 ハーフミラー 2 5は、 その外面がハーフミラーコーティングされ、 かつその内面 が無反射コーティングされており、 半透過反射鏡と呼ばれるごとく、 後方からの 光は透過させる一方で、 前方からの光は反射させる機能をもつ。 このため、 豆電 球 2 7が発する光はハーフミラー 2 5を透過して前方に照射される。 また、 ハー フミラー 2 5の付け根部分には、 柄 2 3に沿って豆電球 2 7とは反対側に光が漏 れるのを防止するため、 光の透過を遮断するブラインド 3 0が配設してあり、 こ のため検者が豆電球 2 7からの光を眩しく感ずるといった問題が起きることはな い。 The self-luminous laryngoscope apparatus 21 shown in FIGS. 6 and 7 is a closed chamber surrounded by a reflecting mirror 24 and a half mirror 25 at the tip of a handle 23 extending freely from the inside of the gripping part 22. 26 is formed. Further, the miniature bulb 27 provided in the sealed room 26 is connected to a commercial AC power supply or a DC power supply installed at a suitable place in the examination room via a power cord 28 extending through the handle 23 and the gripping portion 22. Connected to an external power supply (not shown) such as a stabilized power supply. The handle 23 is accommodated in the grip portion 22 so as to be extendable and contractible, and the extension length is fixed by an adjusting screw 29. As shown in FIG. 8, the reflecting mirror 24 forms a paraboloid and is curved, and its inner surface is a light reflecting surface. For this reason, the light emitted by the miniature bulb 27 provided at the focal position of the paraboloid is reflected by the light reflecting surface and then irradiated forward as substantially parallel light, and the parallel light and the miniature bulb 27 emit light. The direct light is irradiated forward. The half mirror 25 has an outer surface coated with a half mirror and an inner surface coated with an anti-reflection coating, and transmits light from the rear while reflecting light from the front as a semi-transmissive mirror is called. Has functions. Therefore, the light emitted from the miniature ball 27 passes through the half mirror 25 and is irradiated forward. At the base of the half mirror 25, a blind 30 for blocking light transmission is provided to prevent light from leaking along the handle 23 to the opposite side of the miniature bulb 27. Therefore, there is no problem that the examiner dazzles the light from the miniature bulb 27.
ハーフミラー 2 5と反射鏡 2 4は、 第 8 , 9図に示したように、 楕円形の反射 鏡 2 4の外周部分で互いにしつかりと接着されてュニッ ト 3 2を形成しており、 このユニッ ト 3 2を柄 2 3の先端の豆電球保持部 3 1の外周にシール用 0リング (図示を省略) 等を介して螺子嵌合させてある。 このため、 豆電球 2 7が切れた ときは、 ュニッ ト 3 2を螺子が緩む方向に回し、 柄 2 3の先端から外したのち、 豆電球 2 7を交換するとよい。 As shown in FIGS. 8 and 9, the half mirror 25 and the reflecting mirror 24 are tightly adhered to each other at an outer peripheral portion of the elliptical reflecting mirror 24 to form a unit 32. The unit 32 is screw-fitted to the outer periphery of the miniature bulb holding portion 31 at the tip of the handle 23 via a sealing O-ring (not shown) or the like. For this reason, when the miniature bulb 27 is cut, the miniature bulb 27 may be replaced after turning the unit 32 in the direction in which the screw is loosened to remove it from the tip of the handle 23.
自発光式喉頭鏡装置 2 1を使用する場合は、 第 6図に示すごとく、 外部電源の 電源スィッチ (図示せず) を投入し、 豆電球 2 7を点灯させる。 そして、 把持部 2 2をしつかりと握って装置先端側から口腔内に挿入し、 喉頭を照らす。 このと き、 豆電球 2 7が発する光は、 反射鏡 2 4にて反射された光と直接光とがともに ハーフミラー 2 5を透過して声帯 6を照らす。 照らされた声帯 6の像は、 ハーフ ミラ一 2 5にて反射されて検者の視界に入り、 必要な検査が行われる。 ただし、 従来の電球付き喉頭鏡 7 , 9等と異なり、 自発光式喉頭鏡装置 2 1は豆電球 2 7 が密閉室 2 6内に格納されており、 しかも検者への光照射をブラインド 3 0が遮 断しているため、 検者が眩しさ感ずることは一切なく、 検査に専念することがで きる。 また、 自発光式喉頭鏡装置 2 1を使用後に消毒用アルコールで洗浄するに しても、 豆電球 2 7や電源コード 2 8がアルコールに触れることはなく、 ただハ ーフミラ一 2 5と反射鏡 2 4或いは柄 2 3といった露出部分だけが消毒の対象と なるため、 電気系部品の寿命を縮めることはない。 また、 アルコール溶液に浸し たガ一ゼ等で全体を拭くだけでよいため、 洗浄作業も簡単である。 When using the self-luminous laryngoscope device 21, turn on the power switch (not shown) of the external power source and turn on the miniature bulb 27 as shown in FIG. And the gripper 2 Hold 2 firmly and insert it into the oral cavity from the distal end of the device to illuminate the larynx. At this time, the light emitted from the miniature bulb 27, both the light reflected by the reflecting mirror 24 and the direct light, passes through the half mirror 25 and illuminates the vocal cords 6. The illuminated image of the vocal cord 6 is reflected by the half mirror 25 into the field of view of the examiner, and the necessary examination is performed. However, unlike the conventional laryngoscopes with light bulbs 7 and 9, etc., the self-luminous laryngoscope apparatus 21 has a miniature bulb 27 stored in a closed chamber 26, and blindly irradiates the examiner with light. Since the 0 is blocked, the examiner does not feel any dazzling and can concentrate on the examination. Also, even if the self-luminous laryngoscope device 21 is used and then cleaned with alcohol for disinfecting, the miniature bulb 27 and the power cord 28 do not come into contact with the alcohol, only the half mirror 25 and the reflector. Only the exposed parts, such as 24 or handle 23, are subject to disinfection and do not shorten the life of electrical components. In addition, the cleaning operation is also easy because it is only necessary to wipe the entire surface with a gauze soaked in an alcohol solution.
検査作業中、 反射鏡 2 4とハーフミラー 2 5は、 豆電球 2 7が発する熱でもつ て内側から徐々に熱せられるが、 両者を合わせた放熱面積は単純計算でも従来の 電球付き喉頭鏡 7, 9の 2倍程度はあるため、 一部だけが加熱されて被検者の喉 頭に火傷を負わせるといった恐れはない。 また、 均一に熱せられたハーフミラー 2 5には吐息による曇りが付きにくいために、 ハーフミラー 2 5にて反射される 声帯 6の像が曇ることもない。 During the inspection work, the reflecting mirror 24 and the half mirror 25 are gradually heated from the inside by the heat generated by the miniature bulb 27, but the heat dissipation area of both can be calculated simply by using the conventional laryngoscope with a light bulb. Since there is about twice as large as, 9, there is no danger that only a part will be heated and burn the subject's larynx. Further, since the uniformly heated half mirror 25 is hardly clouded by the exhalation, the image of the vocal cord 6 reflected by the half mirror 25 is not clouded.
なお、 上記実施例では、 豆電球 2 7の電源を外部電源としたが、 第 1 0図に示 した自発光式喉頭鏡装置 4 1のごとく、 電源をバッテリ式の内蔵電源とし、 把持 部 4 2内に数個のバッテリ 4 3を組み込むようにしてもよい。 4 4は、 バッテリ 交換時に着脱される蓋であり、 同時にまたクリック的に回動操作されて豆電球を 点灯又は消灯させるスィッチの働きをする。 この実施例の場合、 外部電源に通ず る電源コード 2 8の類いが不要であり、 電源コ一ドが邪魔にならないだけに自在 に扱うことができ、 同時に携帯性も向上することになる。 In the above embodiment, the power supply of the miniature bulb 27 was used as an external power supply. However, as in the self-luminous laryngoscope apparatus 41 shown in FIG. Several batteries 43 may be incorporated in 2. Reference numeral 4 denotes a lid that can be attached and detached when replacing the battery. At the same time, the lid is turned on and clicked to turn on or off the miniature bulb. In the case of this embodiment, it is not necessary to use a power cord 28 that can be connected to an external power supply, and the power cord can be handled freely without disturbing the power cord. At the same time, portability is improved. .
また、 第 1 1図に示したように、 前述の自発光式喉頭鏡装置 2 1は、 ストロボ スコピーとしての使用も可能である。 この場合、 被検者の喉に圧し当てたマイク 口フォン 1 0が検出する声帯の振動に同期して制御装置 4 5が外部電源すなわち 豆電球電源をオンオフする。 これにより、 豆電球 2 7は声帯の動きに合わせてス トロボ的に点滅し、 間欠的に照明された声帯の振動をストロボ画像として観察す ることもできる。 この実施例では、 従来のストロボスコピーと異なり、 被検者の 鼻孔を通して光ファイバ 1 2等を挿入する必要がないため、 被検者が苦痛を感ず ることはなく、 検査も短時間で簡単に可能である。 Further, as shown in FIG. 11, the above-mentioned self-luminous laryngoscope device 21 can be used as a stroboscopic device. In this case, the control device 45 synchronizes with the vibration of the vocal cords detected by the microphone mouth phone 10 pressed against the subject's throat, Turn the miniature bulb power on and off. As a result, the miniature bulb 27 flashes strobe-like in accordance with the movement of the vocal cords, and the vibration of the intermittently illuminated vocal cords can be observed as a strobe image. In this embodiment, unlike conventional stroboscopy, there is no need to insert an optical fiber 12 or the like through the nostril of the subject, so that the subject does not feel pain and the examination is quick and easy. It is possible.
Claims
1. ハーフミラ一 (25) と、 1. Half mirror (25),
該ハーフミラー (25) との間で密閉室 (26) を画成するよう配された反射 鏡 (24) と、 A reflecting mirror (24) arranged to define a closed chamber (26) between the half mirror (25) and
該密閉室 (26) 内に配された光源 (27) と、 A light source (27) disposed in the closed chamber (26);
該ハーフミラー (25)又は反射鏡 (24) に取付固着された把持部分 (3) と、 A grip portion (3) attached and fixed to the half mirror (25) or the reflecting mirror (24);
を具備してなる自発光式喉頭鏡装置。 A self-luminous laryngoscope device comprising:
2. 請求項 1記載の装置において、 前記ハーフミラー (25) は、 その外面が ハーフミラーコーティングされ、 かつその内面が無反射コーティングされている ことを特徴とする自発光式喉頭鏡装置。 2. The self-luminous laryngoscope apparatus according to claim 1, wherein the half mirror (25) has a half mirror coating on its outer surface and an antireflection coating on its inner surface.
3. 請求項 1又は 2記載の装置において、 前記光源は豆電球 (27) であるこ とを特徵とする自発光式喉頭鏡装置。 3. The self-luminous laryngoscope device according to claim 1, wherein the light source is a miniature bulb (27).
4. 請求項 1ないし請求項 3のいずれか 1項記載の装置において、 前記光源の ための電源は、 外部電源であることを特徴とする自発光式喉頭鏡装置。 4. The self-luminous laryngoscope apparatus according to any one of claims 1 to 3, wherein a power supply for the light source is an external power supply.
5. 請求項 1ないし請求項 3のいずれか 1項記載の装置において、 前記光源の ための電源は、 バッテリ式の内蔵電源 (43)であることを特徴とする自発光式 5. The device according to any one of claims 1 to 3, wherein the power source for the light source is a built-in battery type power source (43).
6. 請求項 1ないし請求項 3のいずれか 1項記載の装置において、 前記ハーフ ミラー (25) は、 検者側への反射光路を指向する該光源からの光を遮断するブ ラインド (30) を備えたことを特徴とする自発光式喉頭鏡装置。 6. The apparatus according to any one of claims 1 to 3, wherein the half mirror (25) is a blind (30) that blocks light from the light source that directs a reflected light path toward an examiner. A self-luminous laryngoscope apparatus comprising:
7. 請求項 1記載の自発光式喉頭鏡装置 (21)であって声帯を観察し得る位 置に配置される該装置 (21) と、 7. The self-luminous laryngoscope device (21) according to claim 1, wherein the device (21) is arranged at a position where a vocal cord can be observed;
喉頭部に圧し当てられ声帯の周波数を検出するマイクロフォン (10) と、 該声帯周波数の信号を入力され、 その周波数に対応した所定の周波数のストロ ボ発光用信号を出力して前記自発光式喉頭鏡装置 (21)へ供給する制御装置 (4 A microphone (10) pressed against the larynx to detect the frequency of the vocal cords, a signal of the vocal cord frequency being input, and outputting a strobe light emission signal of a predetermined frequency corresponding to the frequency to output the self-luminous larynx Control device (4) to be supplied to mirror device (21)
5) と、 から構成してなることを特徴とするスト口ボ式喉頭観察装置。 5) and A laryngeal observing apparatus with a mouth-opening, characterized by comprising:
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PCT/JP1992/001409 WO1994009701A1 (en) | 1992-10-30 | 1992-10-30 | Self-luminous laryngoscope and stroboscopic larynx inspection device |
AU28057/92A AU2805792A (en) | 1992-10-30 | 1992-10-30 | Self-luminous laryngoscope and stroboscopic larynx inspection device |
AU45853/93A AU4585393A (en) | 1992-10-30 | 1993-07-23 | Light-emitting laryngoscope and stroboscopic larynx inspection apparatus |
PCT/JP1993/001033 WO1994009695A1 (en) | 1992-10-30 | 1993-07-23 | Light-emitting laryngoscope and stroboscopic larynx inspection apparatus |
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PCT/JP1992/001409 WO1994009701A1 (en) | 1992-10-30 | 1992-10-30 | Self-luminous laryngoscope and stroboscopic larynx inspection device |
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PCT/JP1992/001409 WO1994009701A1 (en) | 1992-10-30 | 1992-10-30 | Self-luminous laryngoscope and stroboscopic larynx inspection device |
PCT/JP1993/001033 WO1994009695A1 (en) | 1992-10-30 | 1993-07-23 | Light-emitting laryngoscope and stroboscopic larynx inspection apparatus |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5725479A (en) * | 1995-10-20 | 1998-03-10 | Ethicon Endo-Surgery, Inc. | Method and devices for endoscopic vessel harvesting |
US5741132A (en) * | 1996-03-13 | 1998-04-21 | Usui Kokusai Sangyo Kaisha Ltd. | Mirror for dental examination |
US5902315A (en) * | 1997-08-28 | 1999-05-11 | Ethicon Endo-Surgery, Inc. | Optical tissue dissector/retractor |
US5922004A (en) * | 1997-08-28 | 1999-07-13 | Ethicon Endo-Surgery, Inc. | Method for performing optical tissue dissection/retraction |
US6193653B1 (en) | 1998-02-06 | 2001-02-27 | Ethicon Endo-Surgery, Inc. | Methods and devices for visualizing, dissecting and harvesting vessels and the like |
JP2002534202A (en) * | 1999-01-12 | 2002-10-15 | メッツォーリ ジョルジオ | Ear self-examination device |
DE20321679U1 (en) | 2002-04-18 | 2008-11-13 | Atmos Medizintechnik Gmbh & Co. | Laryngostroboskop |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6139489A (en) * | 1999-10-05 | 2000-10-31 | Ethicon Endo-Surgery, Inc. | Surgical device with integrally mounted image sensor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6187532A (en) * | 1984-10-05 | 1986-05-02 | 旭光学工業株式会社 | Trachea stroboscope |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5496287A (en) * | 1978-01-14 | 1979-07-30 | Asahi Optical Co Ltd | Larynx strobescope |
JPS63130001U (en) * | 1987-02-17 | 1988-08-25 | ||
JPH0467833A (en) * | 1990-07-09 | 1992-03-03 | Sadajiro Sano | Inspection mirror with illumination |
JPH04132532A (en) * | 1990-09-26 | 1992-05-06 | Dainippon Printing Co Ltd | Dental mirror and manufacture thereof |
-
1992
- 1992-10-30 WO PCT/JP1992/001409 patent/WO1994009701A1/en active Application Filing
- 1992-10-30 AU AU28057/92A patent/AU2805792A/en not_active Abandoned
-
1993
- 1993-07-23 WO PCT/JP1993/001033 patent/WO1994009695A1/en active Application Filing
- 1993-07-23 AU AU45853/93A patent/AU4585393A/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6187532A (en) * | 1984-10-05 | 1986-05-02 | 旭光学工業株式会社 | Trachea stroboscope |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5725479A (en) * | 1995-10-20 | 1998-03-10 | Ethicon Endo-Surgery, Inc. | Method and devices for endoscopic vessel harvesting |
US5741132A (en) * | 1996-03-13 | 1998-04-21 | Usui Kokusai Sangyo Kaisha Ltd. | Mirror for dental examination |
US5902315A (en) * | 1997-08-28 | 1999-05-11 | Ethicon Endo-Surgery, Inc. | Optical tissue dissector/retractor |
US5922004A (en) * | 1997-08-28 | 1999-07-13 | Ethicon Endo-Surgery, Inc. | Method for performing optical tissue dissection/retraction |
US6193653B1 (en) | 1998-02-06 | 2001-02-27 | Ethicon Endo-Surgery, Inc. | Methods and devices for visualizing, dissecting and harvesting vessels and the like |
JP2002534202A (en) * | 1999-01-12 | 2002-10-15 | メッツォーリ ジョルジオ | Ear self-examination device |
DE20321679U1 (en) | 2002-04-18 | 2008-11-13 | Atmos Medizintechnik Gmbh & Co. | Laryngostroboskop |
Also Published As
Publication number | Publication date |
---|---|
WO1994009695A1 (en) | 1994-05-11 |
AU2805792A (en) | 1994-05-24 |
AU4585393A (en) | 1994-05-24 |
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