JP2001091860A - Capsule endoscope - Google Patents

Capsule endoscope

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Publication number
JP2001091860A
JP2001091860A JP26800399A JP26800399A JP2001091860A JP 2001091860 A JP2001091860 A JP 2001091860A JP 26800399 A JP26800399 A JP 26800399A JP 26800399 A JP26800399 A JP 26800399A JP 2001091860 A JP2001091860 A JP 2001091860A
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JP
Grant status
Application
Patent type
Prior art keywords
objective lens
circuit board
image sensor
capsule endoscope
main block
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.)
Withdrawn
Application number
JP26800399A
Other languages
Japanese (ja)
Inventor
Masaru Eguchi
Masahiro Fushimi
Masaaki Nakajima
Tetsuya Nakamura
Taichi Nakanishi
Ichiro Ninomiya
Kenichi Ohara
雅章 中島
哲也 中村
太一 中西
一郎 二ノ宮
正寛 伏見
健一 大原
勝 江口
Original Assignee
Asahi Optical Co Ltd
旭光学工業株式会社
Priority date (The priority date 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 date listed.)
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/04Instruments 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 combined with photographic or television appliances
    • A61B1/041Capsule endoscopes for imaging

Abstract

PROBLEM TO BE SOLVED: To provide a practicable capsule endoscope which is good in assembly workability and is downsized.
SOLUTION: This capsule endoscope has a main block which supports an objective lens and an illumination body, an electric element holding cylinder which is integrally disposed to exist behind the objective lens and the illumination body on the main block, a circuit board which has an image sensor for forming an object image by the objective lens, image sensor control electric parts for controlling the image sensor and signal transmission electric parts for radio transmitting the electric signal outputted from the image sensor and an external case which water-tightly contains a main block including the electric element holding cylinder and the circuit board.
COPYRIGHT: (C)2001,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【技術分野】本発明はカプセル内視鏡の機構構造に関する。 TECHNICAL FIELD The present invention relates to a mechanism structure of the capsule endoscope.

【0002】 [0002]

【従来技術およびその問題点】従来のファイバースコープや電子内視鏡装置は、人体外に配置した操作部や画像モニタ装置と、人体内に導入される撮像ヘッド部とが可撓性管でつながれている構成となっている。 BACKGROUND OF THE INVENTION Conventional fiberscope or the electronic endoscope apparatus, an operation unit and an image monitor device disposed in the outside the human body, and the imaging head to be introduced into the human body are connected by flexible tubes and it has a configurations. 被験者の苦痛を軽減するために撮像ヘッド部の小型化や細径化が計られても、「管」が被験者の喉を通る苦痛を根本的になくすことができない。 Be smaller and diameter of the imaging head portion is scaled in order to reduce the pain of the subject, "tube" can not be eliminated radically pain through the throat of the subject. そこで近年、管のないカプセル状の撮像ヘッド部と離隔された画像モニタ部を有する電子内視鏡装置が提案されてはいるが、従来の提案内容は単なるアイデアに過ぎず、実際に製造、使用する段階には至っていない。 In recent years, the electronic endoscope apparatus having an image monitor portion that is spaced apart from the capsule-shaped imaging head portion having no tube is is proposed, the conventional proposals are mere idea, actually manufactured, use not reached the stage of.

【0003】 [0003]

【発明の目的】本発明は上記の問題点を鑑み、組み立て作業性がよく、小型化された、実際的なカプセル内視鏡を得ることを目的とする。 THE INVENTION The object of the invention In view of the above problems, the assembling workability is good, miniaturized, and to obtain a practical capsule endoscope.

【0004】 [0004]

【発明の概要】本発明は、対物レンズと照明体を支持する主ブロック;この主ブロックに、上記対物レンズと照明体より後方に位置させて一体に設けた電気要素保持筒;上記対物レンズによる物体像を結像させるイメージセンサと、このイメージセンサを制御するイメージセンサ制御電気部品と、上記イメージセンサから出力される電気信号を無線送信する送信電気部品とを有する、上記電気要素保持筒に支持された回路基板;および上記電気要素保持筒を含む主ブロックと回路基板を水密に内蔵する外装ケース;を有することを特徴としている。 SUMMARY OF THE INVENTION The present invention is primarily block supports the illuminating body and the objective lens; to the main block, electrical components holding cylinder provided integrally by positioned behind the illuminating body and the objective lens; by the objective lens an image sensor for imaging an object image, this has an image sensor control electrical components for controlling the image sensor, and a transmission electric component for wirelessly transmitting electrical signals output from the image sensor, supported by the electric element holding cylinder It is characterized by having: outer casing incorporating a main block and a circuit board containing and the electrical component holding cylinder watertight; circuit boards.

【0005】上記外装ケースは、対物レンズ前方を覆う略半球状の透明カバーと、後方を覆い後端部が半球状を成す筒状カバーとからなっていると好ましい。 [0005] The outer casing is preferably substantially hemispherical transparent cover covering the front objective lens, the rear end portion to cover the rear is made from a tubular cover which forms a hemispherical.

【0006】また、上記照明体は、対物レンズを挟んで一対が対称に備えられていると、透明カバー全体を照明することができ、好ましい。 Further, the illumination body, the pair across the objective lens is provided symmetrically, it is possible to illuminate the entire transparent cover, preferably.

【0007】 [0007]

【発明の実施の形態】本カプセル内視鏡は、それぞれサブアッセンブリされる主ブロック10と回路基板10 Detailed Description of the Invention The present capsule endoscope, the main block 10 and the circuit board 10 which is the sub-assembly, respectively
0、および外装ケース50を有する。 0, and a exterior case 50. 以下にこれらのサブアッセンブリについて各々説明する。 Each describe these subassembly below.

【0008】図2に主ブロック10を示す。 [0008] A main block 10 in FIG. 主ブロック10は、全体として筒状を成し、その前方(図2の左方)から順に、照明体支持板部11、小径の対物レンズ保持筒12、大径の電気要素保持筒13を有する。 The main block 10, forms a whole tubular, in order from the front (left in FIG. 2), having an illumination body support plate portion 11, the small diameter of the objective lens holding cylinder 12, a large-diameter electric element holding barrel 13 . 照明体支持板部11には、対物レンズ保持筒12の径方向の両側に位置させて、照明手段(発光ダイオード)30が保持される。 The lighting body supporting plate unit 11 is positioned on either side of the radial direction of the objective lens holding cylinder 12, the illuminating means (light emitting diode) 30 is held. 発光ダイオード30のリード31は、電気要素保持筒13の前方の壁面を貫通していて、電気要素保持筒13内に収納される回路基板100に接続する。 Lead 31 of the light emitting diode 30, a front wall surface of the electric element holding tube 13 extend through and connected to the circuit board 100 accommodated in the electrical component holding cylinder 13.
対物レンズ保持筒12には、対物レンズ鏡筒20が保持される。 The objective lens holding cylinder 12, the objective lens barrel 20 is held. 対物レンズ鏡筒20は、光軸方向に位置調節可能で、調整後、固定ネジ16で固定される。 Object lens barrel 20, the position adjustable along the optical axis after the adjustment is fixed by fixing screws 16. 照明体支持板部11の前方には、半球状の透明カバー17が固定される。 In front of the illuminating body support plate portion 11, the transparent cover 17 of the hemispherical it is fixed. この透明カバー17は、対物レンズ22から被写体までの距離を確保する役目も有している。 The transparent cover 17 also has a function of securing the distance from the objective lens 22 to the object.

【0009】図4に回路基板100の展開図を示す。 [0009] A development view of the circuit board 100 in FIG. この回路基板100は、3枚の円形回路基板110、12 The circuit board 100 includes the three circular circuit board 110,12
0、130と1枚の長方形のアンテナ基板140を連結した形状になっている。 0,130 and has a shape obtained by connecting one of the rectangular antenna substrate 140. 円形回路基板(1)110にはイメージセンサ窓112が形成され、表面にイメージセンサ111が固定されている。 Image sensor window 112 is formed in a circular circuit board (1) 110, the image sensor 111 is fixed to the surface. 円形回路基板(2)12 Circular circuit board (2) 12
0の表面にはイメージセンサ制御電気部品121が固定されている。 Image sensor control electrical component 121 is fixed to 0 in the surface. 円形回路基板(3)130の表面には送信アンプ等の送信電気部品131および電源スイッチ13 Transmission electric components such as the transmission amplifier to the surface of a circular circuit board (3) 130 131, a power switch 13
2が固定され、裏面にはバッテリー101を押さえ込むためのバッテリー用圧縮バネ133が固定されている。 2 is fixed, a battery for a compression spring 133 for hold down the battery 101 is fixed to the rear surface.
これらの円形回路基板110、120、130は帯状の接続ストリップ基板150で接続され、この裏面に有する導電部材で結線されている。 These circular circuit board 110, 120, 130 are connected by strip-shaped connecting strip substrate 150 are connected by a conductive member having this rear surface. 円形回路基板(3)13 Circular circuit board (3) 13
0にはさらに表面に送信アンテナ141を配置したアンテナ基板140が接続している。 Antenna substrate 140 is connected to further arranged to transmit antenna 141 to the surface to zero. アンテナ基板140の長さLは主ブロック10の電気要素保持筒13の円周長とほぼ等しく、裏面には送信によるノイズを防止するためにシールドが施されている。 The length L of the antenna substrate 140 is substantially equal to the circumferential length of the electrical components holding cylinder 13 of the main block 10, it is shielded to prevent noise due to transmission to the back surface is subjected. これら複数部分を連結した形状の回路基板100を、円形回路基板(1)11 The circuit board 100 having a shape connecting the plurality of portions, a circular circuit board (1) 11
0、円形回路基板(2)120、円形回路基板(3)1 0, the circular circuit board (2) 120, a circular circuit board (3) 1
30が平行になるように折り曲げると略円柱状となり、 30 becomes substantially cylindrical when bent in parallel is,
主ブロック10の電気要素保持筒13内に各電気系部品を効率良く収納することができる。 It is possible to efficiently house the respective electrical system parts in the electric element holding cylinder 13 of the main block 10. 図3は、スペーサ1 3, the spacer 1
02とバッテリー101を組み込んだ、主ブロック10 Incorporating the 02 and the battery 101, a main block 10
に収納状態の回路基板100である。 A circuit board 100 in the accommodated state to. このような形状とした回路基板100は電気要素保持筒13に内蔵され、 Circuit board 100 with such a shape is incorporated in the electrical component holding cylinder 13,
図5に示すようにかしめ突起14で固定される。 It is fixed by caulking the projections 14 as shown in FIG.

【0010】図6に外装ケース50を示す。 [0010] shows the outer case 50 in Figure 6. 外装ケース50は前方を覆う透明カバー17と後方を覆う後端部が半球状を成す筒状カバー55とからなる。 Exterior case 50 is a rear end portion that covers the transparent cover 17 and a rear covering the front consists of a tubular cover 55 for forming a semi-spherical shape. 筒状カバー5 Cylindrical cover 5
5の半球状部51には水密保持可能なOリング53を有する貫通孔52が設けてあり、この貫通孔52から外部に電源スイッチ132が突出する(図7)。 Hemispherical portion 51 of the 5 is provided with a through hole 52 having a watertight can hold O-ring 53, the power switch 132 protrudes from the through hole 52 to the outside (Figure 7). 貫通孔52 Through holes 52
から突出した電源スイッチ132を押しこむと、カプセル内視鏡の電源が入る構造になっている。 Squeezing the power switch 132 projecting from, has a structure in which the power supply of the capsule endoscope is entered.

【0011】カプセル内視鏡は体腔内に嚥下されるものであるので、この半球状部51のような丸みが不可欠であるが、従来このような丸みのある部分には部品を収納しにくく、スペースが無駄になることが多かった。 [0011] Since the capsule endoscope is intended to be swallowed into the body cavity, but rounded like the hemispherical portion 51 is essential, difficult to house the components in conventional parts having such rounding, space was often wasted. 本実施形態では、筒状カバー55に回路基板100を保持した主ブロック10を収納すると、半球状部51の内部に円形回路基板(3)130上に設けた送信電気部品13 In the present embodiment, when housing the main block 10 which holds the circuit board 100 to the cylindrical cover 55, transmission electric components 13 inside the hemispherical portion 51 provided on a circular circuit board (3) 130
1、電源スイッチ132がスペースの無駄なく配置することができる。 1, it is possible to power switch 132 to place without waste of space.

【0012】以上に述べた主ブロック10と回路基板1 [0012] The main described above block 10 and the circuit board 1
00、および外装ケース50は、主ブロック10に回路基板100を固定し、これを外装ケース50に収納し透明カバー17と筒状カバー55を水密に接着するとカプセル内視鏡とすることができる。 00 and the outer casing 50, mainly in block 10 to secure the circuit board 100, which the housing and the transparent cover 17 and the cylindrical cover 55 to the exterior case 50 can be the bonding watertight capsule endoscope. 以下にその組み立てについて説明する。 It will be described the assembly below.

【0013】各電気系部品を実装した回路基板100 [0013] The circuit board 100 mounted with each of the electrical system parts
は、サブアッセンブリされた主ブロック10(電気要素保持筒13)に対して次のように結合される。 Is coupled in the following manner with respect to the sub-assembly has been the main block 10 (electric element holding cylinder 13). 回路基板100は単に折り曲げただけでは戻ってしまい形状が安定しないので、円形回路基板(1)110と円形回路基板(2)120の間に円筒状のスペーサ102を挟みこんで接着する。 Since the circuit board 100 is not stable shape reverts only simply bending, bonding by sandwiching a cylindrical spacer 102 between the circular circuit board (1) 110 and the circular circuit board (2) 120. スペーサ102の外径は電気要素保持筒13の内径に対応している。 The outer diameter of the spacers 102 corresponds to the inner diameter of the electric element holding cylinder 13. この円形回路基板(1)1 The circular circuit board (1) 1
10と円形回路基板(2)120およびスペーサ102 10 and the circular circuit board (2) 120 and spacers 102
を電気要素保持筒13に収納し、さらにバッテリー10 It was housed in an electrical component holding cylinder 13, further battery 10
1を円形回路基板(2)120と円形回路基板(3)1 1 a circular circuit board (2) 120 and the circular circuit board (3) 1
30の間に挟むように収納する。 For housing so as to sandwich between 30. バッテリー101の外径は電気要素保持筒13の内径に対応し、円形回路基板(2)120と円形回路基板(3)130との間のスペーサの役割も果たしている。 The outer diameter of the battery 101 corresponds to the inner diameter of the electric element holding cylinder 13, and plays the role of a spacer between the circular circuit board (2) 120 and the circular circuit board (3) 130. バッテリー用圧縮バネ13 Battery for a compression spring 13
3を押さえ込みながらかしめ突起14を倒して固定すると、このバッテリー用圧縮バネ133によって円筒状になった回路基板100と電気要素保持筒13が押しつけられ、各電気接点部分が安定して接続する。 Fixing to defeat caulking projection 14 while holding down the 3, the circuit board 100 and the electrical element holding cylinder 13 became cylindrically pressed by the battery for a compression spring 133, the electrical contact portions are connected stably. すなわち、 That is,
発光ダイオード30と円形回路基板(1)110が接して発光ダイオード30に電力供給が可能になる。 Emitting diode 30 and a circular circuit board (1) 110 allows the power supplied to the light emitting diode 30 in contact. またイメージセンサ111は、圧縮バネ133で電気要素保持筒13の壁面に押しつけられて光軸に対し垂直に固定される。 The image sensor 111 is fixed perpendicularly to the optical axis by the compression spring 133 is pressed against the wall surface of the electric element holding cylinder 13. 図5に、回路基板100を保持した主ブロック1 5, the main block 1 holding the circuit board 100
0を示す。 It represents 0. さらに、電気要素保持筒13の外周にアンテナ基板140を巻きつけて、この主ブロック10および回路基板100を外装ケース50(筒状カバー55)に挿入すると、アンテナ基板140は、電気要素保持筒1 Furthermore, wound antenna substrate 140 on the outer periphery of the electric element holding tube 13, insertion of the main block 10 and the circuit board 100 to the exterior case 50 (cylindrical cover 55), the antenna board 140, electrical component holding cylinder 1
3と筒状カバー55とのわずかなスペースを効率良く利用して収納される。 The small space between the 3 and the tubular cover 55 is efficiently accommodated by utilizing.

【0014】対物レンズ鏡筒20のピント調整作業は、 [0014] focus adjustment of the objective lens barrel 20,
外装ケース50に主ブロック10全体を収納し固定する前に行う。 Performed before and fixed housing the entire main block 10 to the exterior case 50. 図6に示すように、主ブロック10の前方に透明カバー17を固定し、主ブロック10(レンズ保持筒12)の調節穴(治具挿入穴)15から調整用治具を挿入し、対物レンズ鏡筒20の溝21を利用して対物レンズ鏡筒20を光軸方向に進退移動させ、ピント調整終了後に固定ネジ16を本締めして対物レンズ鏡筒20を固定する。 As shown in FIG. 6, the transparent cover 17 is fixed to the front of the main block 10, by inserting the adjustment jig from adjusting hole (jig insertion hole) 15 of the main block 10 (lens holding barrel 12), an objective lens by utilizing the groove 21 of the barrel 20 to advance and retreat the objective lens barrel 20 in the optical axis direction, to fix the objective lens barrel 20 is tightened the fixing screw 16 after focus adjustment completion.

【0015】回路基板100を保持して外周にアンテナ基板140を巻きつけ、透明カバー17を固定した主ブロック10を筒状カバー55に収納し、筒状カバー55 [0015] winding the antenna substrate 140 on the outer periphery to hold the circuit board 100, houses a main block 10 which is fixed to the transparent cover 17 to the cylindrical cover 55, cylindrical cover 55
と透明カバー17を水密に接着すると、半球状部51には、送信電気部品131と電源スイッチ132がスペース効率良く内蔵される(図7)。 When the bonding the transparent cover 17 in a watertight, the hemispherical portion 51 transmits electrical components 131 and the power switch 132 is built well space efficiency (Fig. 7). 上述のようにこのカプセル内視鏡は、回路基板100、主ブロック10、外装ケース50の3ブロックからなる構成となっているため組み立て作業が容易であり、筒状カバー55と透明カバー17の接合を水密にするだけで、カプセル全体の水密性を保つことができる。 The capsule endoscope as described above, the circuit board 100, a main block 10, it is easy to assemble work because has a structure consisting of three blocks of the exterior case 50, the junction of the cylindrical cover 55 and the transparent cover 17 the only watertight, it is possible to maintain the water-tightness of the whole capsule.

【0016】本カプセル内視鏡の使用について図1を参照に説明する。 The description of FIG. 1 the reference for the use of this capsule endoscope. まず電源スイッチ132を押しこんでカプセル内視鏡の電源をオンにしたのち、被験者にこのカプセル内視鏡を嚥下させる。 After turning on the power supply of the capsule endoscope is first elaborate pressing the power switch 132, and ingested the capsule endoscope in the subject. 体腔内では透明カバー17 Transparent in the body cavity cover 17
に押しのけられた管腔が密着し、この透明カバー17の表面に密着した部位が観察範囲となる。 Pushed away lumen adhered to, the site in close contact with the surface of the transparent cover 17 becomes observation range. 観察範囲は図1 Observation range is 1
に示すように、対物レンズ22を挟んで対称に設けられた発光ダイオード30によって照明されている。 As shown in, it is illuminated by the light emitting diode 30 provided symmetrically about the objective lens 22. 照明された被写体の像は対物レンズ22によってイメージセンサ111上に結像し、イメージセンサ制御電気部品12 Image of the illuminated subject is imaged on the image sensor 111 by the objective lens 22, the image sensor control electric components 12
1から画像信号として出力される。 1 is outputted as an image signal from the. この画像信号は送信電気部品131で加工され、送信アンテナ141から送信されて体外の受信手段により受信されて観察できる。 The image signal is processed by the transmission electric component 131 can be observed are received by the receiving means is transmitted outside the body from the transmitting antenna 141.

【0017】本実施形態では回路基板100は1枚の基板であるが、回路基板100を図11のように複数枚に分割し、アンテナ基板140以外を主ブロック10に収納した後に送信アンテナ141を接続すれば、回路基板100の組み立て作業が行いやすくなる。 The circuit board 100 in this embodiment is a single substrate, dividing the circuit board 100 in a plurality as shown in FIG. 11, a transmitting antenna 141 after accommodating the other antenna substrate 140 in the main block 10 by connecting, easily done by assembly of the circuit board 100. また、電源スイッチ132は一度オンにしたら戻らない(オフにできない)構造であり、外装ケース50の各部品を接着してある、バッテリー交換が不可能な使い捨てタイプであるが、もちろん、再利用可能な構造とすることも可能である。 In addition, the power supply switch 132 (can not be turned off) once does not return after you turn is a structure, are adhered to each of the parts of the exterior case 50, but the battery exchange is a disposable type that can not, of course, can be reused it is also possible to structure. 本実施形態のように透明カバー17を主ブロック1 The transparent cover 17 as in this embodiment the main block 1
0側の部材として、まずこれら透明カバー17と主ブロック10を接着してもよいが、透明カバー17を外装ケース50側の部材と考え、組み立ての最終段階で筒状カバー55と透明カバー17を接着すれば、接着作業は一度ですむという利点がある。 0 side of the member, first may be bonded these transparent cover 17 and the main block 10, but considering the transparent cover 17 and the member of the exterior case 50, at the final stage of assembly the tubular cover 55 and the transparent cover 17 if the adhesive, the bonding operation has an advantage that only once.

【0018】 [0018]

【発明の効果】それぞれサブアッセンブリされた部分を組み立てるので、組み立て作業性がよく小型化されたカプセル内視鏡が実現可能となった。 Since assembling according to the present invention part which is sub-assemblies respectively, the capsule endoscope assembly workability is good miniaturized can be realized.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施形態を示すカプセル内視鏡の断面図である。 1 is a cross-sectional view of the capsule endoscope illustrating an embodiment of the present invention.

【図2】主ブロックの断面図である。 2 is a cross-sectional view of the main block.

【図3】電気要素保持筒に収納された状態の回路基板を示す側断面図である。 3 is a side sectional view showing a circuit board in a state of being accommodated in the electrical component holding tube.

【図4】回路基板の展開図である。 FIG. 4 is an exploded view of the circuit board.

【図5】回路基板を収納した主ブロックを示す側断面図である。 5 is a side sectional view of a main block that houses the circuit board.

【図6】外装ケースを固定する前のカプセル内視鏡である。 6 is a capsule endoscope before fixing the outer case.

【図7】図1と別の断面を示す断面図である。 7 is a sectional view showing the Figure 1 and another section.

【図8】図7におけるVIII―VIII断面矢視図である。 8 is a VIII-VIII cross-sectional view taken along in FIG.

【図9】図7におけるIX―IX断面矢視図である。 9 is a IX-IX cross-sectional view taken along in FIG.

【図10】図7におけるX―X断面矢視図である。 It is a sectional view taken along line X-X arrow view in FIG. 10 FIG.

【図11】別の実施形態における回路基板の展開図である。 11 is a development view of a circuit board in another embodiment.

【符号の説明】 DESCRIPTION OF SYMBOLS

10 主ブロック 11 照明体支持板部 12 レンズ保持筒 13 電気要素保持筒 14 かしめ突起 15 調節穴(治具挿入穴) 16 固定ネジ 17 透明カバー 20 対物レンズ鏡筒 21 対物レンズの溝 22 対物レンズ 30 照明手段(発光ダイオード) 31 リード 50 外装ケース 51 半球状部 52 貫通孔 53 Oリング 55 筒状カバー 100 回路基板 101 バッテリー 102 スペーサ 110 円形回路基板(1) 111 イメージセンサ 112 イメージセンサ窓 120 円形回路基板(2) 121 イメージセンサ制御電気部品 130 円形回路基板(3) 131 送信電気部品 132 電源スイッチ 133 バッテリー用圧縮バネ 140 アンテナ基板 141 送信アンテナ 150 接続ストリップ基板 L アンテナ基板の長さ 10 main block 11 groove 22 objective lens of the lighting body supporting plate portion 12 a lens holding cylinder 13 electrical element holding barrel 14 caulked protrusions 15 adjust holes (jig insertion hole) 16 fixing screw 17 transparent cover 20 objective lens barrel 21 objective lens 30 illumination means (light emitting diode) 31 lead 50 outer casing 51 semi-spherical portion 52 through hole 53 O-ring 55 cylindrical cover 100 circuit board 101 battery 102 spacer 110 circular circuit board (1) 111 image sensor 112 image sensor window 120 a circular circuit board (2) 121 image sensor control electrical components 130 circular circuit board (3) 131 transmits electrical component 132 power switch 133 the length of the battery for a compression spring 140 the antenna substrate 141 transmitting antenna 150 connected strip substrate L antenna substrate

フロントページの続き (72)発明者 中村 哲也 東京都板橋区前野町2丁目36番9号 旭光 学工業株式会社内 (72)発明者 伏見 正寛 東京都板橋区前野町2丁目36番9号 旭光 学工業株式会社内 (72)発明者 中西 太一 東京都板橋区前野町2丁目36番9号 旭光 学工業株式会社内 (72)発明者 江口 勝 東京都板橋区前野町2丁目36番9号 旭光 学工業株式会社内 (72)発明者 大原 健一 東京都板橋区前野町2丁目36番9号 旭光 学工業株式会社内 Fターム(参考) 2H040 BA24 CA03 CA22 DA00 DA18 GA02 4C061 AA00 BB02 CC06 DD10 FF21 FF40 FF50 JJ13 NN01 NN03 SS01 UU06 5C022 AA09 AC42 AC54 AC61 AC65 AC70 5C054 CA04 CC02 CD01 CE04 HA12 Of the front page Continued (72) inventor Tetsuya Nakamura Itabashi-ku, Tokyo cortex-cho 2-chome No. 36 No. 9 rays of the rising sun Chemical Industry Co., Ltd. in the (72) inventor Masahiro Fushimi Itabashi-ku, Tokyo cortex-cho 2-chome No. 36 No. 9 rays of the rising sun Science in industry Co., Ltd. (72) inventor Taichi Nakanishi Itabashi-ku, Tokyo cortex-cho 2-chome No. 36 No. 9 rays of the rising sun chemical industry Co., Ltd. in the (72) inventor Masaru Eguchi Itabashi-ku, Tokyo cortex-cho 2-chome No. 36 No. 9 rays of the rising sun Science in industry Co., Ltd. (72) inventor Kenichi Ohara Itabashi-ku, Tokyo cortex-cho 2-chome No. 36 No. 9 rays of the rising sun chemical industry Co., Ltd. in the F-term (reference) 2H040 BA24 CA03 CA22 DA00 DA18 GA02 4C061 AA00 BB02 CC06 DD10 FF21 FF40 FF50 JJ13 NN01 NN03 SS01 UU06 5C022 AA09 AC42 AC54 AC61 AC65 AC70 5C054 CA04 CC02 CD01 CE04 HA12

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 対物レンズと照明体を支持する主ブロック;この主ブロックに、上記対物レンズと照明体より後方に位置させて一体に設けた電気要素保持筒;上記対物レンズによる物体像を結像させるイメージセンサと、このイメージセンサを制御するイメージセンサ制御電気部品と、上記イメージセンサから出力される電気信号を無線送信する送信電気部品とを有する、上記電気要素保持筒に支持された回路基板;および上記電気要素保持筒を含む主ブロックと回路基板を水密に内蔵する外装ケース;を有することを特徴とするカプセル内視鏡。 1. A main supporting the objective lens and the illumination body block; to the main block, the objective lens and the electric element holding cylinder provided integrally by positioned behind the illuminating body; forming an object image by the objective lens an image sensor for image, the image sensor control electrical components for controlling the image sensor, and a transmission electric component for wirelessly transmitting electrical signals output from the image sensor, the circuit substrate supported by the electric element holding cylinder ; and the outer case incorporating a main block and a circuit board containing the electrical elements holding cylinder watertight; capsule endoscope characterized by having a.
  2. 【請求項2】 請求項1記載のカプセル内視鏡において、外装ケースは、対物レンズ前方を覆う略半球状の透明カバーと;後方を覆い後端部が半球状を成す筒状カバーと;からなっているカプセル内視鏡。 2. The method of claim 1 capsule endoscope according outer case is substantially a hemispherical transparent cover covering the front objective lens; from; rear portion covering the rear and cylindrical cover forming a hemispherical made by the capsule endoscope is.
  3. 【請求項3】 請求項1または2記載のカプセル内視鏡において、照明体は、対物レンズを挟んで一対が対称に備えられているカプセル内視鏡。 3. An apparatus according to claim 1 or 2 capsule endoscope according lighting body, the capsule endoscope pair across the objective lens is provided symmetrically.
JP26800399A 1999-09-22 1999-09-22 Capsule endoscope Withdrawn JP2001091860A (en)

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