【０００１】[0001]
【発明の属する技術分野】 本発明は、医療用内視鏡の
挿入部先端に取り付ける消化管や気管支の内視鏡観察に
用いる内視鏡用フードに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope hood used for endoscopic observation of a digestive tract and a bronchus attached to a distal end of an insertion portion of a medical endoscope.
【０００２】[0002]
【従来の技術】 内視鏡の性能は逐次改良を加えられ向
上してきたが、問題として、観察を行う際に内視鏡先端
と病変部位との間隔を適切に保持することによる、適切
な視野を得ることが必ずしも容易ではないことがあげら
れる。即ち、内視鏡の対物レンズと観察対象部位との間
隔を適切に保ちながら、観察を継続するには、手技に対
する相当な熟練を術者が求められるからである。内視鏡
の体内挿入部は、相当な長さを有するので、術者が内視
鏡を手元操作するには、経験による勘が必要である。そ
こで、内視鏡の対物レンズを観察対象の病変部に近接さ
せるとき、手元操作が十分でないと、病変部に接近させ
すぎ、観察に必要な視野が得られなくなる。勿論、距離
がありすぎれば、観察が不能となる。従って、適切な間
隔を保つよう、操作を継続しなければならないが、これ
には、ややもすると、その調節に時間がかかることにな
る。また、調節に時間がかかれば、それだけ患者の負担
を増大させることになる。しかし、従来この点を解決す
る提案は、なされていない。2. Description of the Related Art The performance of an endoscope has been improved by successive improvements, but the problem is that an appropriate visual field can be obtained by properly maintaining the distance between the endoscope tip and a lesion site during observation. Is not always easy to obtain. That is, in order to continue the observation while appropriately maintaining the distance between the objective lens of the endoscope and the observation target site, the operator needs considerable skill in the procedure. The insertion portion of the endoscope in the body has a considerable length, and therefore, it is necessary for the surgeon to operate the endoscope at hand by experience. Therefore, when the objective lens of the endoscope is brought close to the lesion to be observed, if the operation at hand is not sufficient, the endoscope is too close to the lesion, and a visual field required for observation cannot be obtained. Of course, if there is too much distance, observation becomes impossible. Thus, the operation must be continued to maintain the proper spacing, which will take a while to adjust. In addition, the longer the adjustment, the greater the burden on the patient. However, no proposal for solving this problem has been made.
【０００３】[0003]
【発明が解決しようとする課題】 本発明の目的は、前
記の問題等を解決して、内視鏡による病変部位の適切な
観察を容易にするため、内視鏡の対物レンズと病変部位
との間隔を過剰に近接させることなく、適切な間隔を素
早く保持することができ、かつ、観察中これを維持でき
る手段を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and the like and to facilitate proper observation of a lesion site by an endoscope. An object of the present invention is to provide a means capable of quickly maintaining an appropriate interval without excessively approaching the intervals, and maintaining this during observation.
【０００４】[0004]
【課題を解決するための技術手段】 上記課題を解決す
るため鋭意研究し、および検討を重ねた結果、これを解
決することができた。即ち、基端部は内視鏡の挿入部先
端に嵌合する円筒状体であり、先端部は円筒状又はラッ
パ状に形成され、円もしくは楕円状に開口するフードを
用いる。即ち、内視鏡挿入部に前記フードを嵌着すれ
ば、内視鏡の対物レンズは、このフード前縁に規制さ
れ、病変部位に過剰に接近することができなくなる。従
って、術者は人体に内視鏡を挿入する際、その対物レン
ズが病変部に過剰に接近することをおそれ、術者の経験
による勘に頼って挿入行為をする必要がないので、素早
くその挿入を行うことができる。この場合、問題となる
のは、対物レンズが薬剤や体液により汚れたとき、内視
鏡の先端に設けられている鉗子口やノズルからの送気に
よる除去又はノズルからの液体噴出による洗浄をする
際、流体等の排出が前記フードによって妨げられること
である。そこで、この問題を解決するため、前記フード
先端部に単数もしくは複数の切欠部を設け、又は及び側
孔を穿設するようにし、前記流体等の排出路を形成し
た。[Technical Means for Solving the Problems] As a result of intensive research and repeated studies for solving the above problems, the present invention was able to be solved. That is, the base end is a cylindrical body fitted to the distal end of the insertion section of the endoscope, and the distal end is formed in a cylindrical or trumpet shape, and uses a hood that opens in a circle or an ellipse. That is, if the hood is fitted to the endoscope insertion portion, the objective lens of the endoscope is regulated by the front edge of the hood, and cannot excessively approach the lesion site. Therefore, when the operator inserts the endoscope into the human body, there is a fear that the objective lens may approach the lesion part excessively, and it is not necessary to perform the insertion operation based on the intuition of the operator's experience. Insertion can be performed. In this case, the problem is that when the objective lens is contaminated with a medicine or a body fluid, the objective lens is removed by air supply from a forceps port or a nozzle provided at the end of the endoscope or is washed by ejecting a liquid from the nozzle. In this case, discharge of a fluid or the like is obstructed by the hood. Therefore, in order to solve this problem, one or more cutouts are provided at the tip of the hood or side holes are formed to form the discharge path for the fluid or the like.
【０００５】[0005]
【発明の実施の形態】 本発明を図面を用いて説明す
る。図１、図２及び図３は、実施例の概要を示す側面説
明図で、図４は実施例を内視鏡に嵌合した状態を示す正
面説明図である。フード（１）は、接近防止部（２）と
内視鏡に着脱可能な嵌合部（３）とを同体又は別体に形
成し、接近防止部（２）は円筒又はラッパ状に形成する
とともに切欠部（２ａ）又は及び側孔（２ｂ）を穿って
ある。接近防止部（２）は、内視鏡（４）の対物レンズ
（５）の性能に応じ内視鏡（４）の対物レンズ（５）の
視野を適切に得ることができる長さとする。前記切欠部
（２ａ）又は及び側孔（２ｂ）は、単数又は複数設ける
が、前記のとおり内視鏡（４）の鉗子口（７）、ノズル
（８）からの送気や液体噴出による流体等排出路として
設けるものであるので、単数又は少数設けるときは、排
出の実効をあげるため、内視鏡（４）の対物レンズ
（５）側に設けることが望ましい（なお、図４に示す内
視鏡は例示であり、同図中（７）はライトガイドであ
る。）。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. 1, 2 and 3 are side explanatory views showing an outline of the embodiment, and FIG. 4 is a front explanatory view showing a state where the embodiment is fitted to an endoscope. In the hood (1), an access preventing portion (2) and a fitting portion (3) detachable from an endoscope are formed integrally or separately, and the access preventing portion (2) is formed in a cylindrical or trumpet shape. In addition, a notch (2a) or a side hole (2b) is formed. The approach preventing section (2) has a length that can appropriately obtain the field of view of the objective lens (5) of the endoscope (4) according to the performance of the objective lens (5) of the endoscope (4). The cutout (2a) or the side hole (2b) may be provided singly or plurally. As described above, the fluid by the air supply or the liquid ejection from the forceps port (7) and the nozzle (8) of the endoscope (4) is provided. Since it is provided as an equal discharge path, when a single or a small number is provided, it is desirable to provide the endoscope (4) on the objective lens (5) side of the endoscope (4) in order to increase the effectiveness of discharge (in FIG. The endoscope is an example, and (7) in the figure is a light guide.)
【０００６】[0006]
【発明の効果】 本発明の観察専用内視鏡フードによれ
ば、接近防止部（２）により内視鏡（４）の対物レンズ
（５）が観察対象の病変部に過剰接近することがないか
ら、適切な視野を容易に得ることができるとともに、前
記排出路によりフード（１）内に流体等が貯留すること
がないため、対物レンズ（５）をクリヤーに維持でき
る。従って、術者は、患者の負担を最小限にとどめなが
ら、観察対象である病変部位を的確に観察することがで
き、治療の効果を十分にあげることができる。According to the endoscope hood for exclusive use for observation of the present invention, the objective lens (5) of the endoscope (4) does not excessively approach the lesion to be observed due to the approach preventing portion (2). Therefore, an appropriate visual field can be easily obtained, and since the fluid and the like are not stored in the hood (1) by the discharge path, the objective lens (5) can be kept clear. Therefore, the operator can accurately observe the lesion site to be observed while minimizing the burden on the patient, and can sufficiently enhance the effect of the treatment.
【図１】 実施例の概要を示す側面説明図FIG. 1 is an explanatory side view showing an outline of an embodiment.
【図２】 実施例の概要を示す側面説明図FIG. 2 is an explanatory side view showing an outline of the embodiment.
【図３】 実施例の概要を示す側面説明図FIG. 3 is an explanatory side view showing an outline of the embodiment.
【図４】 実施例を内視鏡に嵌合した状態を示す正面図FIG. 4 is a front view showing a state in which the embodiment is fitted to an endoscope.
１・・フード ２・・接近防止部 ２ａ・・切欠部 ２ｂ・・側孔 ３・・嵌合部 ４・・内視鏡 ５・・対物レンズ ６・・ライトガイド ７・・鉗子口 ８・・ノズル 1. Hood 2. Access prevention part 2a Notch part 2b Side hole 3. Fitting part 4. Endoscope 5. Objective lens 6. Light guide 7. Forceps port 8. nozzle
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000331494AJP2002095623A (en) | 2000-09-25 | 2000-09-25 | Endoscope hood for observation only |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000331494AJP2002095623A (en) | 2000-09-25 | 2000-09-25 | Endoscope hood for observation only |
| Publication Number | Publication Date |
|---|---|
| JP2002095623Atrue JP2002095623A (en) | 2002-04-02 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000331494APendingJP2002095623A (en) | 2000-09-25 | 2000-09-25 | Endoscope hood for observation only |
| Country | Link |
|---|---|
| JP (1) | JP2002095623A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003084391A1 (en)* | 2002-04-08 | 2003-10-16 | Olympus Corporation | Endoscope hood |
| EP1430828A1 (en)* | 2002-04-08 | 2004-06-23 | Olympus Corporation | Endoscope hood |
| IT201600124851A1 (en)* | 2016-12-12 | 2018-06-12 | Alessandro Budano | Endoscopy device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5143027Y2 (en)* | 1972-07-20 | 1976-10-19 | ||
| JPS5153666Y1 (en)* | 1968-08-13 | 1976-12-22 | ||
| JPS5675912U (en)* | 1979-11-16 | 1981-06-20 | ||
| JPS5675911U (en)* | 1979-11-16 | 1981-06-20 | ||
| JPS5854805U (en)* | 1981-10-12 | 1983-04-14 | オリンパス光学工業株式会社 | tip of endoscope |
| JPS5994315U (en)* | 1982-12-13 | 1984-06-27 | 住友電気工業株式会社 | image fiber device |
| JPH08131397A (en)* | 1994-11-14 | 1996-05-28 | Olympus Optical Co Ltd | Hood for endoscope |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5153666Y1 (en)* | 1968-08-13 | 1976-12-22 | ||
| JPS5143027Y2 (en)* | 1972-07-20 | 1976-10-19 | ||
| JPS5675912U (en)* | 1979-11-16 | 1981-06-20 | ||
| JPS5675911U (en)* | 1979-11-16 | 1981-06-20 | ||
| JPS5915613Y2 (en)* | 1979-11-16 | 1984-05-09 | オリンパス光学工業株式会社 | Endoscope |
| JPS5854805U (en)* | 1981-10-12 | 1983-04-14 | オリンパス光学工業株式会社 | tip of endoscope |
| JPS5994315U (en)* | 1982-12-13 | 1984-06-27 | 住友電気工業株式会社 | image fiber device |
| JPH08131397A (en)* | 1994-11-14 | 1996-05-28 | Olympus Optical Co Ltd | Hood for endoscope |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003084391A1 (en)* | 2002-04-08 | 2003-10-16 | Olympus Corporation | Endoscope hood |
| EP1430828A1 (en)* | 2002-04-08 | 2004-06-23 | Olympus Corporation | Endoscope hood |
| EP1430828A4 (en)* | 2002-04-08 | 2005-12-07 | Olympus Corp | Endoscope hood |
| US7238153B2 (en) | 2002-04-08 | 2007-07-03 | Olympus Corporation | Endoscope hood |
| US7326175B2 (en) | 2002-04-08 | 2008-02-05 | Olympus Corporation | Endoscope hood |
| CN100376198C (en)* | 2002-04-08 | 2008-03-26 | 奥林巴斯株式会社 | Endoscope hood |
| US8038603B2 (en) | 2002-04-08 | 2011-10-18 | Olympus Corporation | Endoscope hood |
| IT201600124851A1 (en)* | 2016-12-12 | 2018-06-12 | Alessandro Budano | Endoscopy device |
| WO2018109638A1 (en)* | 2016-12-12 | 2018-06-21 | Budano Alessandro | Endoscopic device |
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| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination | Free format text:JAPANESE INTERMEDIATE CODE: A621 Effective date:20070702 | |
| A131 | Notification of reasons for refusal | Free format text:JAPANESE INTERMEDIATE CODE: A131 Effective date:20091215 | |
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