JP3327965B2 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JP3327965B2 JP3327965B2 JP00508193A JP508193A JP3327965B2 JP 3327965 B2 JP3327965 B2 JP 3327965B2 JP 00508193 A JP00508193 A JP 00508193A JP 508193 A JP508193 A JP 508193A JP 3327965 B2 JP3327965 B2 JP 3327965B2
- Authority
- JP
- Japan
- Prior art keywords
- cover glass
- gold
- endoscope
- inner tube
- soldering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は例えば高圧蒸気滅菌等の
高温・高圧雰囲気中での滅菌作業が行なわれる内視鏡に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope for performing a sterilization operation in a high-temperature and high-pressure atmosphere such as high-pressure steam sterilization.
【０００２】[0002]
【従来の技術】一般に、例えば硬性内視鏡の挿入部の先
端部に配設される観察光学系のカバーガラスの固定法と
して、例えば特開昭５８−１２６４１号公報、或いは特
公平４−４５６７号公報にはカバーガラスを枠体に嵌
合、あるいは圧入固定し、その枠体を支持部材の凹部に
嵌入、あるいは圧入固定する方法が示されている。2. Description of the Related Art Generally, for example, as a method of fixing a cover glass of an observation optical system disposed at a distal end portion of an insertion portion of a rigid endoscope, for example, Japanese Patent Application Laid-Open No. Sho 58-12641, or Japanese Patent Publication No. 4-4567. The publication discloses a method of fitting or press-fitting a cover glass to a frame, and fitting or press-fitting the frame into a concave portion of a support member.
【０００３】また、嵌合、あるいは圧入固定の他の観察
光学系のカバーガラスの固定法としてカバーガラス、枠
体、支持部材等の各構成部品の接合部位間を半田付け、
接着、銀ロー付け等の手段が行なわれることもある。[0003] In addition, as a method of fixing the cover glass of the observation optical system other than fitting or press-fitting, soldering is performed between joining portions of components such as a cover glass, a frame, and a support member.
Means such as bonding and silver brazing may be performed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、カバー
ガラス、枠体、支持部材等の各構成部品の接合部位間を
嵌合、あるいは圧入等の手段で固定する場合にはカバー
ガラス、枠体、支持部材等の各構成部品の製造時に厳し
い寸法精度が必要となるので、加工コストが高価となる
問題がある。However, when the joints of the components such as the cover glass, the frame, and the support member are fixed by means such as fitting or press-fitting, the cover glass, the frame, the support, and the like. Strict dimensional accuracy is required at the time of manufacturing each component such as a member, so that there is a problem that processing costs are high.
【０００５】ここで、各構成部品の寸法精度が悪い場合
には各構成部品間の嵌入、あるいは圧入部分に隙間が生
じ、その隙間部分から蒸気や液体等が内視鏡の内部に侵
入したり、カバーガラス、あるいは枠体が脱落するおそ
れがある。Here, if the dimensional accuracy of each component is poor, a gap is formed in the fitting or press-fitting portion between the components, and vapor, liquid, or the like may enter the endoscope from the gap. The cover glass or the frame may fall off.
【０００６】また、内視鏡の使用後に一般に行なわれる
内視鏡の滅菌法として例えば加熱温度が１１５〜１３５
℃程度で、圧力が１．７〜２．４Ｋｇ／ｃｍ程度という
厳しい条件の高温・高圧雰囲気中での高圧蒸気滅菌等が
知られている。As a method of sterilizing an endoscope which is generally performed after use of the endoscope, for example, a heating temperature of 115 to 135 is used.
High-pressure steam sterilization in a high-temperature high-pressure atmosphere under severe conditions of about 1.7 ° C. and a pressure of about 1.7 to 2.4 kg / cm is known.
【０００７】この種の高圧蒸気滅菌に対して内視鏡の挿
入部に耐久性を持たせるためには挿入部を構成する外
管、或いはカバーガラスの枠体等の構成部材の材料とし
てステンレス等の耐蝕性の高い材料を使用する必要があ
る。[0007] In order to make the insertion portion of the endoscope durable against this kind of high-pressure steam sterilization, stainless steel or the like is used as a material of a component such as an outer tube constituting the insertion portion or a frame of a cover glass. It is necessary to use a material having high corrosion resistance.
【０００８】しかしながら、挿入部を構成する外管、或
いはカバーガラスの枠体等の構成部材の材料としてステ
ンレス材料等を使用した場合にはステンレス材料の各構
成部品に半田が付着しにくいので、挿入部を構成する外
管、或いはカバーガラスの枠体等のステンレス材料の各
構成部品の接合部位間が半田付けし難い問題がある。However, when a stainless material or the like is used as a material of the outer tube constituting the insertion portion or the frame member of the cover glass, etc., the solder does not easily adhere to the respective components of the stainless material. There is a problem that it is difficult to solder between the joining portions of the stainless steel material components such as the outer tube constituting the portion or the frame of the cover glass.
【０００９】さらに、接着や銀ロー付け等の手段では接
着剤及び銀ロー材料が高温・高圧雰囲気中での高圧蒸気
滅菌処理に耐えられず、高圧蒸気滅菌処理時にはこれら
の接着剤及び銀ローによる接合部位間が剥離するおそれ
がある。Furthermore, the adhesive and the silver brazing material cannot withstand high-pressure steam sterilization in a high-temperature and high-pressure atmosphere by means such as bonding and silver brazing. There is a risk of separation between the joining sites.
【００１０】本発明は上記事情に着目してなされたもの
で、その目的は、耐久性が高く、高圧蒸気滅菌等の高温
高圧の蒸気雰囲気中に晒されても、ステンレス材料の各
構成部品の接合部位間が剥離することを防止することが
できる内視鏡を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object the purpose of achieving high durability and the use of stainless steel components even when exposed to a high-temperature, high-pressure steam atmosphere such as high-pressure steam sterilization. It is an object of the present invention to provide an endoscope that can prevent separation between joint portions.
【００１１】[0011]
【課題を解決するための手段】本発明は被対象物を観察
する為の観察光学系と、内視鏡挿入部内にあって前記観
察光学系を保持するステンレス材料により形成される内
管と、あらかじめその外周縁部にメタルコーティングが
蒸着されたカバーガラス部材と、金メッキ処理されると
ともに前記カバーガラス部材が半田付け固定されたカバ
ーガラス保持部材と、前記内管の先端部内周面に設けら
れ、前記カバーガラス保持部材を接合する接合溝部と、
前記接合溝部の表面に金、または金合金材料によるメッ
キ処理を施して形成された半田付け用メッキ処理面と、
前記接合溝部に嵌合された前記カバーガラス保持部材の
金メッキ処理面と前記接合溝部の前記半田付け用メッキ
処理面とを気密状態になるように半田付けにて固着する
半田固着部とを有する内視鏡である。According to the present invention, there is provided an observation optical system for observing an object, an inner tube formed of a stainless steel material in an endoscope insertion portion and holding the observation optical system, A cover glass member with a metal coating deposited on its outer edge in advance, and a gold plating process
In both cases, the cover glass member is soldered and fixed.
A glass holding member, a joining groove provided on the inner peripheral surface of the distal end portion of the inner tube, and joining the cover glass holding member,
Gold, or a plated surface for soldering formed by performing a plating process with a gold alloy material on the surface of the joining groove portion,
The mated the cover glass holding member to the bonding groove
An endoscope having a solder-fixed portion for fixing a gold-plated surface and a solder- plated surface of the joint groove by soldering so as to be airtight.
【００１２】[0012]
【作用】ステンレス材料により形成される内管の先端部
内周面の接合溝部の表面に金、または金合金材料による
メッキ処理を施して半田付け用メッキ処理面を形成し、
接合溝部に嵌合された金メッキ処理されるカバーガラス
保持部材の金メッキ処理面と接合溝部の半田付け用メッ
キ処理面との半田固着部によって気密状態になるように
半田付けにて固着するとともに、あらかじめその外周縁
部にメタルコーティングが蒸着されたカバーガラス部材
をカバーガラス保持部材に半田付け固定することによ
り、内視鏡が高圧蒸気滅菌等の高温高圧の蒸気雰囲気中
に晒されても、内視鏡挿入部を気密状態を保つことがで
きるようにしたものである。[Action] The tip of the inner tube made of stainless steel material
Gold or gold alloy material on the surface of the joint groove on the inner peripheral surface
Apply plating to form a plated surface for soldering,
Gold-plated cover glass fitted in the joint groove
The solder plating between the gold-plated surface of the holding member and the joint groove
To be airtight by the solder fixing part with the processing surface
It is fixed by soldering and its outer edge is
Cover glass member with metal coating deposited on the part
To the cover glass holding member by soldering.
Thus, even if the endoscope is exposed to a high-temperature, high-pressure steam atmosphere such as high-pressure steam sterilization, the endoscope insertion portion can be kept airtight.
【００１３】[0013]
【実施例】以下、本発明の一実施例を図面を参照して説
明する。図２は硬性内視鏡１の概略構成を示すものであ
る。この硬性内視鏡１には挿入部２とこの挿入部２の基
端部に連結された操作部３とが設けられている。さら
に、操作部３には接眼部４が設けられているとともに、
この操作部３における挿入部２との連結部の外周面には
ライトガイド接続部５が突設されている。An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows a schematic configuration of the rigid endoscope 1. The rigid endoscope 1 includes an insertion section 2 and an operation section 3 connected to a base end of the insertion section 2. Further, the operation unit 3 is provided with an eyepiece unit 4,
A light guide connecting portion 5 is protruded from an outer peripheral surface of a connection portion of the operation portion 3 with the insertion portion 2.
【００１４】また、挿入部２には図１に示すように外装
管１１とこの外装管１１内に挿入固定された光学管８と
が設けられている。さらに、外装管１１には外管６と内
管７とが設けられている。そして、外管６の先端部には
略リング状の先端部材９がレーザ溶接等の手段で固着さ
れている。The insertion section 2 is provided with an outer tube 11 and an optical tube 8 inserted and fixed in the outer tube 11, as shown in FIG. Further, the outer tube 11 is provided with an outer tube 6 and an inner tube 7. A substantially ring-shaped tip member 9 is fixed to the tip of the outer tube 6 by means such as laser welding.
【００１５】さらに、外装管１１の外管６及び先端部材
９と内管７との間の隙間には照明光学系としてのライト
ガイドファイバ１０が充填されている。この場合、外装
管１１を構成する外管６、先端部材９、内管７及びライ
トガイドファイバ１０は図３に示すように接着等の手段
により一体的に固着されている。Further, a gap between the outer tube 6 and the tip member 9 of the outer tube 11 and the inner tube 7 is filled with a light guide fiber 10 as an illumination optical system. In this case, the outer tube 6, the tip member 9, the inner tube 7, and the light guide fiber 10 constituting the outer tube 11 are integrally fixed by means such as adhesion as shown in FIG.
【００１６】また、内管７の先端部内周面にはカバーガ
ラス枠装着用の装着溝７ａが設けられている。そして、
この装着溝７ａにカバーガラス枠（カバーガラス保持部
材）１２が半田付けにより気密的に固着されている。さ
らに、このカバーガラス枠１２にはカバーガラス（カバ
ーガラス部材）１３が半田付けにより気密的に固着され
ている。この場合、内管７の装着溝７ａとカバーガラス
枠１２との間の接合部位およびカバーガラス枠１２とカ
バーガラス１３との間の接合部位には予め金、または金
合金材料によるメッキ処理を施した半田付け用のメッキ
処理面１８が形成されている。A mounting groove 7a for mounting a cover glass frame is provided on the inner peripheral surface of the distal end portion of the inner tube 7. And
A cover glass frame (cover glass holder) is provided in the mounting groove 7a.
Material 12 is hermetically fixed by soldering. Further, the cover glass frame 12 has a cover glass (cover).
(Glass member) 13 is hermetically fixed by soldering. In this case, the joint between the mounting groove 7a of the inner tube 7 and the cover glass frame 12 and the joint between the cover glass frame 12 and the cover glass 13 are previously plated with gold or a gold alloy material. A plated surface 18 for soldering is formed.
【００１７】さらに、光学管８にはカバーガラス１３に
対向配置された対物光学系１４と接眼部４側に配設され
た接眼レンズ系１５とが設けられている。そして、これ
らの対物光学系１４と接眼レンズ系１５との間には観察
像を伝達するレンズ構成の伝達光学系１６が組み込まれ
て観察光学系１７が形成されている。Further, the optical tube 8 is provided with an objective optical system 14 arranged facing the cover glass 13 and an eyepiece system 15 arranged on the eyepiece section 4 side. An observation optical system 17 is formed between the objective optical system 14 and the eyepiece system 15 by incorporating a transmission optical system 16 having a lens configuration for transmitting an observation image.
【００１８】また、図４は操作部３の内部構造を示すも
のである。この操作部３には略筒状の本体２１が設けら
れている。この操作部３の本体２１には外装管１１の外
管６の基端部が固定されているとともに、内管７の基端
部が本体２１内に配設されたスペーサ２２を介して固定
されている。FIG. 4 shows the internal structure of the operation unit 3. The operation unit 3 is provided with a substantially cylindrical main body 21. The base end of the outer tube 6 of the outer tube 11 is fixed to the main body 21 of the operation unit 3, and the base end of the inner tube 7 is fixed via a spacer 22 provided in the main body 21. ing.
【００１９】ここで、本体２１の材質として例えばモネ
ル、真鍮のように外管６のステンレス材料と異なる材料
を用いた場合にはそれぞれの熱膨張／収縮率が異なるた
め、高圧蒸気滅菌時に膨張／収縮差を生じる。そのた
め、本体２１と外管６との間の固定部を剛性的にしっか
り固定した場合にはこのときの膨張／収縮差によりいず
れかの固定部が破壊されるおそれがあるので、本実施例
では外管６は本体２１に対してＯリング２３および接着
剤２４を介して弾性的に固定されている。なお、この接
着剤２４としてはシリコン系接着剤が好ましいが他の接
着剤でも良い。さらに、外管６ではなく内管７側を本体
２１に弾性的に固定しても良い。Here, when a material different from the stainless steel material of the outer tube 6, such as monel or brass, is used as the material of the main body 21, the thermal expansion / shrinkage rates are different from each other. A difference in contraction occurs. Therefore, if the fixing portion between the main body 21 and the outer tube 6 is rigidly and firmly fixed, any of the fixing portions may be broken by the difference in expansion / contraction at this time. The outer tube 6 is elastically fixed to the main body 21 via an O-ring 23 and an adhesive 24. The adhesive 24 is preferably a silicone adhesive, but may be another adhesive. Further, the inner tube 7 side may be elastically fixed to the main body 21 instead of the outer tube 6.
【００２０】また、本体２１と接眼部４との間には接眼
筒２５が設けられている。この接眼筒２５の両端部は本
体２１、接眼部４に対してそれぞれねじ固定されている
とともに、接眼筒２５の両端部と本体２１および接眼部
４との各接合面にはシール用のＯリングが装着されてい
る。さらに、本体２１と接眼筒２５との間には気密の確
保のために断面形状が台形の金属製のシールリング２６
が装着されている。An eyepiece tube 25 is provided between the main body 21 and the eyepiece 4. Both ends of the eyepiece 25 are fixed to the main body 21 and the eyepiece 4 with screws, respectively, and a joint surface between the both ends of the eyepiece 25 and the main body 21 and the eyepiece 4 is used for sealing. O-ring is mounted. Further, a metal seal ring 26 having a trapezoidal cross section is provided between the main body 21 and the eyepiece 25 to ensure airtightness.
Is installed.
【００２１】また、接眼筒２５の内部の伝達光学系１６
の後端部には常に各レンズが正確な位置に固定され、高
圧蒸気滅菌時の熱の影響を吸収する等、いかなる状況の
変化に対してもレンズに無理な応力を与えることなく常
に一定の力量でレンズを押圧するコイルばね２７が設け
られている。The transmission optical system 16 inside the eyepiece tube 25
At the rear end, each lens is always fixed in the correct position and absorbs the influence of heat during high-pressure steam sterilization. A coil spring 27 for pressing the lens with a force is provided.
【００２２】さらに、操作部３のライトガイド接続部５
のライトガイドファイバ保持筒体２８には組立後、最終
的に各固定部の気密固定が確実になされているか確認す
る検査用の穴２９が設けられており、この穴２９は検査
後、密封されるようになっている。Further, the light guide connection part 5 of the operation part 3
After the assembly, the light guide fiber holding cylinder 28 is provided with an inspection hole 29 for confirming whether or not each of the fixing portions is finally hermetically sealed. After the inspection, the hole 29 is sealed. It has become so.
【００２３】また、高圧蒸気滅菌に対する硬性内視鏡１
の耐久性を高めるためには内視鏡１内部の観察光学系１
７に蒸気が侵入しないようにする必要があり、そのため
には挿入部２の先端部に配設されたカバーガラス枠１２
及びカバーガラス１３は気密的に固着する必要がある。Further, a rigid endoscope 1 for high-pressure steam sterilization
In order to increase the durability of the endoscope 1, the observation optical system 1 inside the endoscope 1
It is necessary to prevent steam from entering the cover glass 7, and for that purpose, the cover glass frame 12
In addition, the cover glass 13 needs to be hermetically fixed.
【００２４】そこで、次に、本実施例による装着溝７ａ
へのカバーガラス枠１２の気密的な固着手段及びカバー
ガラス枠１２へのカバーガラス１３の気密的な固着手段
について説明する。Therefore, next, the mounting groove 7a according to the present embodiment will be described.
The means for hermetically fixing the cover glass frame 12 to the cover glass frame 12 and the means for hermetically fixing the cover glass 13 to the cover glass frame 12 will be described.
【００２５】まず、外装管１１の外管６、先端部材９、
内管７、カバーガラス枠１２の材料としては高圧蒸気滅
菌に耐久性を持たせるための材料としてステンレス材料
を用いるのが好ましいが、ステンレス材料には半田が付
着しにくく、溶接不良を起こし易い。そのため、半田を
付着させ易くするために、外管６、先端部材９、内管７
を一体的に組み付けた状態で、図３の一点鎖線部Ａで示
すように少なくともこの外装管１１の先端部近傍に金、
または金合金材料によるメッキ処理を施した半田付け用
のメッキ処理面１８が形成されている。First, the outer tube 6 of the outer tube 11, the tip member 9,
As a material for the inner tube 7 and the cover glass frame 12, it is preferable to use a stainless material as a material for imparting durability to high-pressure steam sterilization. Therefore, the outer tube 6, the tip member 9, the inner tube 7
In a state in which the outer tube 11 is integrally assembled, as shown by a dashed line portion A in FIG.
Alternatively, a plating surface 18 for soldering, which is plated with a gold alloy material, is formed.
【００２６】さらに、金メッキ処理されたメッキ処理面
１８が形成された後、内管７の先端部内周面の装着溝７
ａにカバーガラス枠１２を組み込み、装着溝７ａとカバ
ーガラス枠１２とが半田付けされる。Further, after the plated surface 18 having been subjected to the gold plating is formed, the mounting groove 7 on the inner peripheral surface of the distal end portion of the inner tube 7 is formed.
The cover glass frame 12 is assembled into the mounting groove 7a, and the mounting groove 7a and the cover glass frame 12 are soldered.
【００２７】次に、カバーガラス枠１２にカバーガラス
１３を固着する。この場合、サファイアガラスで作られ
たカバーガラス１３には、あらかじめ、その外周縁部に
Ｃｒ、Ｃｕ、Ｎｉ等、及びそれらを組み合わせたメタル
コーティングが蒸着されている。このメタルコーティン
グはＣｒ−Ｃｕ−Ｃｕ−Ｎｉの４層コーティングが好ま
しい。そして、このカバーガラス１３のメタルコーティ
ング部分がカバーガラス枠１２に半田付けされる。Next, the cover glass 13 is fixed to the cover glass frame 12. In this case, on the cover glass 13 made of sapphire glass, Cr, Cu, Ni, or the like, and a metal coating obtained by combining them are vapor-deposited on the outer peripheral edge in advance. This metal coating is preferably a four-layer coating of Cr-Cu-Cu-Ni. Then, the metal coating portion of the cover glass 13 is soldered to the cover glass frame 12.
【００２８】その後、再度これら半田付けした部分に金
メッキ処理が行なわれる。これにより、硬性内視鏡１の
外観品位が向上するとともに、半田が直接外気と接触す
ることを防止できる。Thereafter, the soldered portions are again subjected to gold plating. Thereby, the appearance quality of the rigid endoscope 1 is improved, and the solder can be prevented from directly contacting the outside air.
【００２９】そこで、上記構成のものにあっては内管７
およびカバーガラス枠１２をステンレス材料等の耐蝕性
の良い材料で形成し、内管７の装着溝７ａとカバーガラ
ス枠１２との間の接合部位およびカバーガラス枠１２と
カバーガラス１３との間の接合部位には予め金、または
金合金材料によるメッキ処理を施した半田付け用のメッ
キ処理面１８を形成したので、内管７の装着溝７ａとカ
バーガラス枠１２との間の接合部位およびカバーガラス
枠１２とカバーガラス１３との間の接合部位のメッキ処
理面１８に半田を確実に付着させることができる。Therefore, in the above configuration, the inner pipe 7
Further, the cover glass frame 12 is formed of a material having good corrosion resistance such as a stainless steel material, and the joint portion between the mounting groove 7a of the inner tube 7 and the cover glass frame 12 and the gap between the cover glass frame 12 and the cover glass 13 are formed. Since a plating surface 18 for soldering, which has been previously plated with gold or a gold alloy material, is formed at the joint portion, the joint portion between the mounting groove 7a of the inner tube 7 and the cover glass frame 12 and the cover are formed. Solder can be reliably adhered to the plating surface 18 at the joint between the glass frame 12 and the cover glass 13.
【００３０】そのため、内管７の装着溝７ａとカバーガ
ラス枠１２との間の接合部位およびカバーガラス枠１２
とカバーガラス１３との間の接合部位を従来のように嵌
合、圧入等の手段で固定する場合のような厳しい寸法管
理が不要となり、加工・組立コストが低減できる。Therefore, the joint between the mounting groove 7a of the inner tube 7 and the cover glass frame 12 and the cover glass frame 12
Strict dimensional control as in the case of fixing the joint between the cover glass 13 and the cover glass 13 by means of fitting, press fitting, or the like is not required, and the processing and assembly costs can be reduced.
【００３１】さらに、挿入部２の先端部に配設されたカ
バーガラス１３にあらかじめメタルコーティングを行な
うことにより、カバーガラス１３とカバーガラス枠１２
との間を直接半田付けすることができるので、これらの
隙間からの蒸気の侵入を確実に防止できる。Further, the cover glass 13 provided at the distal end of the insertion section 2 is previously metal-coated, so that the cover glass 13 and the cover glass frame 12 are coated.
Can be directly soldered, so that invasion of steam from these gaps can be reliably prevented.
【００３２】なお、本発明は上記実施例に限定されるも
のではない。例えば、外管６、先端部材９、内管７、カ
バーガラス枠１２はステンレスに限定されず、耐蝕性に
優れた材料であれば良い。さらに、上記実施例では伝達
光学系１６としてレンズ構成のものを示したが、レンズ
ではなく、光ファイバ、或いはＣＣＤ（固体撮像素子）
を使用したものでも良い。また、上記実施例では硬性鏡
について示したが、挿入部全体に可撓性を有する軟性鏡
でも良い。さらに、その他本発明の要旨を逸脱しない範
囲で種々変形実施できることは勿論である。The present invention is not limited to the above embodiment. For example, the outer tube 6, the tip member 9, the inner tube 7, and the cover glass frame 12 are not limited to stainless steel, and may be made of a material having excellent corrosion resistance. Further, in the above embodiment, the transmission optical system 16 has a lens configuration, but is not a lens but an optical fiber or a CCD (solid-state image sensor).
May be used. Further, in the above embodiment, the rigid scope has been described, but a flexible scope having flexibility in the entire insertion portion may be used. Further, it goes without saying that various modifications can be made without departing from the spirit of the present invention.
【００３３】[0033]
【発明の効果】本発明によればステンレス材料により形
成される内管の先端部内周面の接合溝部の表面に金、ま
たは金合金材料によるメッキ処理を施して半田付け用メ
ッキ処理面を形成し、接合溝部に嵌合された金メッキ処
理されるカバーガラス保持部材の金メッキ処理面と接合
溝部の半田付け用メッキ処理面との半田固着部によって
気密状態になるように半田付けにて固着するとともに、
あらかじめその外周縁部にメタルコーティングが蒸着さ
れたカバーガラス部材をカバーガラス保持部材に半田付
け固定するようにしたので、内視鏡が高圧蒸気滅菌等の
高温高圧の蒸気雰囲気中に晒されても、内視鏡挿入部を
気密状態で保つことができる。According to the present invention, the shape is made of stainless steel.
The surface of the joint groove on the inner peripheral surface of the tip of the inner tube to be formed
Or a gold alloy material for plating.
A gold-plated processing surface that forms
To the gold-plated surface of the cover glass holding member to be treated
By solder fixing part with the plating surface for soldering of groove
It is fixed by soldering so as to be airtight,
A metal coating is deposited on the outer periphery in advance.
Cover glass member soldered to cover glass holding member
Since the endoscope is fixed in place, the endoscope insertion portion can be kept airtight even when the endoscope is exposed to a high-temperature, high-pressure steam atmosphere such as high-pressure steam sterilization.
【図１】 本発明の一実施例の要部構成を示す縦断面
図。FIG. 1 is a longitudinal sectional view showing a configuration of a main part of an embodiment of the present invention.
【図２】 硬性内視鏡の概略構成を示す側面図。FIG. 2 is a side view showing a schematic configuration of a rigid endoscope.
【図３】 外装管の先端部を示す縦断面図。FIG. 3 is a longitudinal sectional view showing a distal end portion of the outer tube.
【図４】 操作部の内部構造を示す縦断面図。FIG. 4 is a longitudinal sectional view showing the internal structure of the operation unit.
２…挿入部、７…内管（構成部材）、１２…カバーガラ
ス枠（構成部材）、１１８…メッキ処理面。2 ... insertion part, 7 ... inner tube (component), 12 ... cover glass frame (component), 118 ... plating surface.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 1/00 - 1/32 G02B 23/24 - 23/26 B23K 1/20 C25D 5/00 - 7/12 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) A61B 1/00-1/32 G02B 23/24-23/26 B23K 1/20 C25D 5/00-7 / 12
Claims (1)
ンレス材料により形成される内管と、 あらかじめその外周縁部にメタルコーティングが蒸着さ
れたカバーガラス部材と、金メッキ処理されるとともに前記カバーガラス部材が半
田付け固定されたカバーガラス保持部材 と、 前記内管の先端部内周面に設けられ、前記カバーガラス
保持部材を接合する接合溝部と、 前記接合溝部の表面に金、または金合金材料によるメッ
キ処理を施して形成された半田付け用メッキ処理面と、 前記接合溝部に嵌合された前記カバーガラス保持部材の
金メッキ処理面と前記接合溝部の前記半田付け用メッキ
処理面とを気密状態になるように半田付けにて固着する
半田固着部とを有する内視鏡。1. An observation optical system for observing an object, an inner tube formed of a stainless material in an endoscope insertion portion and holding the observation optical system, and a metal formed on an outer peripheral edge thereof in advance. The cover glass member on which the coating is deposited and the cover glass member which has been subjected to the gold plating process and are half
A cover glass holding member fixed in place, a joining groove provided on the inner peripheral surface of the distal end portion of the inner tube and joining the cover glass holding member, and a plating process using gold or a gold alloy material on the surface of the joining groove The plating surface for soldering formed by applying the
An endoscope having a solder fixing portion for fixing a gold-plated surface and a solder- plated surface of the joint groove by soldering so as to be airtight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00508193A JP3327965B2 (en) | 1993-01-14 | 1993-01-14 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00508193A JP3327965B2 (en) | 1993-01-14 | 1993-01-14 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06209898A JPH06209898A (en) | 1994-08-02 |
| JP3327965B2 true JP3327965B2 (en) | 2002-09-24 |
Family
ID=11601442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00508193A Expired - Fee Related JP3327965B2 (en) | 1993-01-14 | 1993-01-14 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3327965B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6547721B1 (en) | 1998-08-07 | 2003-04-15 | Olympus Optical Co., Ltd. | Endoscope capable of being autoclaved |
| JP4586946B2 (en) * | 2000-03-31 | 2010-11-24 | 富士フイルム株式会社 | Endoscope insertion portion connection structure and connection method |
| JP4555014B2 (en) * | 2003-08-22 | 2010-09-29 | Ｈｏｙａ株式会社 | Joining method, unit assembly for medical device, and endoscope |
| JP2006258919A (en) * | 2005-03-15 | 2006-09-28 | Olympus Medical Systems Corp | Optical unit and its manufacturing method |
| US7946706B2 (en) * | 2006-02-10 | 2011-05-24 | Volk Optical Inc. | Lens assembly for vitreoretinal surgery |
| DE102013202539B3 (en) * | 2013-02-18 | 2014-04-24 | Olympus Winter & Ibe Gmbh | Method for manufacturing endoscope used during surgery, involves fixing window in aperture of tube by galvanic application of precious metal on tube in region of window |
-
1993
- 1993-01-14 JP JP00508193A patent/JP3327965B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06209898A (en) | 1994-08-02 |
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