DE1886603U - ENDOSCOPE WITH ADJUSTABLE LENS. - Google Patents

Description

PA753 814 * 21116:

Dr. Hugo Wffcken

Patent attorney
Lübeck, BreifeSfr. 52-54
Long distance call; 7 5888 *

1963

Applicant

Mrma Bichard Wolf QmMc ₉ Knlttllngen / ^ Urtto,. Schillerstr * 2

Endoscope with adjustable lens

3) The invention relates to an endoscope with a lighting for the part of the body cavity to be observed and a picture, of which the illuminated picture is recorded via a lens and an ocular? or a camera is guided ",

In the Sndoskopteehnik it is known to ^ the lens of a 'Beobachtungsoptikj to a camera is anseiiließliar _g corresponding to the desired Ob; fect £ ®lct axially au steepen _g; in order to achieve an image sharpness corresponding to the distances between the objectives and the objects. the or through the shaft _P flexible: extend Sehaft and thereby a corresponding cross-section = * magnification condition of the instrument and during the observation a continuous operating the gughebels erforderno was Housing the tie rods ^ been difficult for dünnkalitaige endoscopes or even impossible ₀ was -Now - established _{9 /} that the ia the different

human body cavity "occurring object distance® from the lens j, which in the investigations to bridge SiM ₉ for adjustment to the image sharpness does not require a continuous object division and that basically only a few ₉ in all", common two object positions are sufficient *, to enable image transmission:

The invention is based on this finding and consists therein ^ that the lens for at least two focus adjustments in axial sighting by electromagnetic influencing of a lens mount serving as an anchor from one position to another position opposite the distal end of a Image guide is adjustable "

It is thus possible to achieve very thin-caliber enoscopes because the electrical * conductors for the electromagnetic adjustment of the objective require only small cross-sections that do not have any significant influence on the endoscope cross-sections and are sufficient for one or the other objective pitch according to the. - Occurring 0b | 9 | £ atmtäaden a single switch actuation in each case without the need for further manipulations

■ ... ■ According to the invention, the lens can be used. Image conductor a usual optics seia _? their lines brought in a flexible shaft ₉ goBo for gastroesicrope ^ on

or it is advantageously a flexible image guides Mber '~. ■ - - © ine

who can follow all movements and. / ■, ^. Flawless

BJ.ldtransuBg guaranteed «

■ '.- ■; _: ..-. . Furthermore, the illumination of the mi observing 'd

Prior consist of a distal end desEndoskopes mounted lighting lamp © of the light can AELLE from an outer 5iehtc [on a plane passing through the endoscope "ladder lefccht the object supplied expectant @ n ₉ wherein the Mchtlei" = | _er? E.g., Fiberliehtleltea? ^ next to the image guide \ © which surrounds it in a ring o Finally, depending on the type of endoscope and lighting, the observation can follow in front of the Bndoskopend®, or to the side of the endoscope © via reflectors ea? _o

In the drawing are two _{exemplary embodiments d s} @s? according to the invention lens adjustment for indoscopes shown ^, which are described below _s and indeed show?

o 1 - an enlarged longitudinal tendon through the distal © 'end © of an endoscope with electromagnetic disc surrounding the obj6ktiirein8tellai ^ e & _v

Figure 2 _o the same .Mngssehnitt, - but only ^with: a unilateral elekiteomagnetischen ^ ^ Bin tellung of Objectives-, · · ■ '' V ''

The endoscope shown in the exemplary embodiment has a BiIdleiter T from lIehtleitend @ B Hbern that -zu in, large Ägah .einem bundle .are combined "and" this Fiberbündal ■ 'is a protective sheath 2 made of plastic od "like _0, a" ■ stiffening spring 3 and a suSeren advantageously ^ also made of plastic pilisehlaueh 4 surrounded ^ d ^ smoke stesi ■ lizable let. " Of the. distal® instrument head 5 carries in its "\.

■ free end © within a .'transpang & fcen cap β «Ine BeleucÜ« = * · "'lamp *?» !. via an insulated wire 8 of a ^{Kioirfe:-illustrated} Stromquelle'gespeist wirdo In the case of Beispleiee is the Xampenkopf with the flexible fibrescope by a rigid intermediate piece - 9- ttnd a drill sleeve connected .10

■ - ■ ~ 4 -.- ■ - ■■■ "." ■■■■ The objective is arranged in front of the distal end of the overhead image 1 and De is composed of a lens system H _9, namely the objective lens 11a ₉ of Behind lens Hb and the Aehromat lens 11c · for a side view is one; Seflektionsf lache is provided "and in the embodiment example a deflection prism 12 is cemented to the objective lens 11a, the outlook or the incidence of the image rays over a

lateral9 covered by a Glasplattefaen 13 with fit 13a Is there a wall breakthrough?

According to the invention, the objective lens system 11 is now arranged in a magnetizable mount 14 _? The individual lenses are fixed in their spaced-apart position within the fitting 14 by diaphragms 15 in a known manner, so that the lens system and the frame 14 form a unit

the branch lens system can now be moved axially between two

In order to achieve this axial shift from one end position to the other in a simple way to set the desired image sharpness, the frame 14 yöa "is surrounded by a magnetic iron core 16 η ₉ on the inside of zntei sheet metal

t, © magnets 1? and 18 are housed separately from one another in an axial view ", these solenoids are fed via the insulated conductor wires 17a and 18a from a _{constant voltage source 9} whereby it is possible to" provide a pressure or slide switch _p shower its actuation either ^ ie ^ a © or other of the two coils 1? © the 18 is connected to the feeicMpanramgs · = 'source «, the coil core 16 is provided with three radially inwardly directed BingZlaneohen? of which

a middle flange 16a separates the two coils 1? and 18, while the ötstal® Plansch 16b forms a stop for the Aakeg consisting of the socket 14, while the other stop consists of an inwardly directed lingflaneek; 'Sa ^:: & m intermediate connecting piece siiif 9 bestehto ^Torteilhaft; di @ spacing aperture 15 on both sides · when the socket 14 extended beyond and- consist of non-magnetizable © ® material ^ so that, in the axial ^ 7erSchiebung of the lens not di © - ■ replaced by H.... . sondesidi'3 ends of the spacer diaphragms against AEIE An "=;'propose ssur conditioning k ^ iEmeno - -.

For. the setting of an image sharpness "is carried out by

'Switch actuation, for example, the solenoid. ■ ■; ■ "■ '■ - ■ S% rQJB set Uiad thereby pulls the anchor against the stop flange 16bo If the su

so you will again © - ~ "'""""""""" ^Λ - " ^! - * ^Λ · ""

.18 switched off and äie Spul® "1? Asig-öschaltet ^ so _; daJ ';-' ^? Äpii the Öb ^ ekiiiTeinheit in Bichtung ^ in öistalea lad® dee." B | t3'-zism 'Flan-schanschlag "9a" moves _$ with which wisrler f @ "is reached« · - ■ '. "- ^v ; ^; ; ■■: ';;. ■:' ■ ~ 'i

: ■■; In the execution-.according to. Figo 2 _a with the ^ same reference geioh @ a as la Figo '. 1 is the serving as Ankes® © bjektiffasstmg •; flansoh Ha Tersehen. ₀ the © on the side against © inen ■ s: -agemlen stop "21 comes to the plant can with duroh eia®advantageSiaft from Biofög © -produced® is ρ which is supported on the one hand against the Eiiagf laaseh 14ä ail. On the other hand against a lagaetkesa 20 _? . where

U-shaped profile © annular "core 20 a ■ solenoid I9 receives that can be fed back via an isolated" pus 19a from a Grleichspannuangsquell © ,, WiM capable ₉ shown:. Le 14 DES of the armature with its I

the viewed® Bi 14 uasietaii $ s * ^: © lay against the stop 21

If the table is switched on, the magnetic coil 19 is set material GrlfdLeM ^ voltage and then sees lake »H. with the O" bjefeti ¥ against the action of the spring 22 _? Ms ä @ T AnkeT against the "column- '.'" .- , core 20 to.% system comes ₉ so that now & again the "© yf ^^ afitöhe""^ image sharpness is reached _o ^; - - \. ^; . ^; ^ i; 4'i3-

According to the invention, it is also possible ₉ with ά @ τ Atis-flkrung "after. 1 instead of two magnet coil @ a aar a® i

coil in a magnetic core aasuo3fön, en _g die abe ^ in

netspule through di @ pole switching which acts as an anchor di © n © nde '' ÖTbJeltfciv version Η in the eifte * or- otheres§4zial © Bickttog ''% & $ ■ ß lungs the picture sharpness erersee ^ btn.- wisdo ■ ·

'■ - - Me the EaIl ₂ that more than two ObjectiTeinst ^ lg -desired ₀ can be used as -Anchor -.4ien @ nd @ OljjeJctiffassuag nu & h durah more than two. magnet coil "" influenced WeUdQn _8, müfßi Mn / additional "coil * the läinsohaltang dew Ankei him then in a Zwischenstellwäg ..abea" grappling "? .- 'ouch stop © are used $ that dureli _:. Influence ia di® Tersohiebebahn of the Inker

Withdraw the concerned Spal® again. " Ett3 £ ii © kX & mf®m.9 - '■ / --- 13s is veaf.standslidhs, faß äur © h die

Guided tour with thin gauge © Instrument ©

Since the conductors £ ϋχ the solenoid coils only require a very small amount of tree and the operation is twc visual fsn-. setting 'by-one-touch operation of the switch "eleiktariseEen. Control handle of the Insti? ument® provided on welctem feel, known devices, the control ^{switch 1} for the lighting is already in place and which is also used to operate the instrument«

Claims (1)

RA. 753 81 ^ 2111.63 I a S ρ ^ ϋ ο h e 1 «Endoscope with lighting for the-. su ^ attentive body cavity nieil unfl an image guide ₉ by ^ -desi. das ^: illuminated © picture üea? an adjustable lens; sufgeaöiamen and an eyepiece or a camera ₉ is characterized ₉ that the object (11) has two sharpness positions in axial sighting from? oh electromagnetic®. Influencing an as anchor diB © nead @ a object! Vfaesuag (H) from a 'position la a® a.nder © Stellmag opposite the distal Inäe of an image guide (1) is adjustable »-.' - 2 * Endoscope according to claim -T ₉ thereby germinated ^ eiclnetg that the lens mount (14) by means of a spring (22) in Biehusig to the distal end of the endoscope against a stop (21) - lies u & d that an el @ kt at the proximal end of the lens mount £ -omagaet ('t 9 V 20) arranged -is the when ■ switching on -to a- DC voltage. the object massage (1,4) against the leather (20) in bending against the magnetic core (20) or a stop looks _o V '" ■ 3 · .. endoscope demand claim -1 _{s g} gekennseiehnet characterized that surround the lens mount (H) of two separate ascial Eiektromagnetspulen (17 »18) ₈ as Alike® serving © Whether by their selectively turning on eine'Gleichspannung j ektivfaesung "is versehobe'n in a distal ^ or prosimal Aasshlagstellsmg ^ ■ 4β endoscope according to claim I ₀ thereby gekeanssei'öiiäet ^ daB; '. the object socket (H) of - an electromagnetic coil -. Surrounded is ₉ the poTamsshaltbar switchable to a DC voltage source- - - ■ '■ "' ■■ -« 9 ■ =. is to slide the socket (H) ait the © b;) @ fcti ¥ into a distal © © of the proximal® -Anschlägst © llung zta wrschieb 5ο endoscope according to one of the claims 1 © the "2 $. characterized in that di® Gbgektivfass is provided with a Hüßereiar .flanseh (Ha) ₉ which is held by a spring (22) against a badial flange serving as a stop of the endoscope and that the proximal end of the letting © im serving as a stop Electromagnet 0'9 ₉ 20) opposite? Whose magnetic force is greater than the! Craft der Leder (2Z),. ;; ■ ',. "6> Endoscope aaeh claim 1 and 3g thereby _ ä & B the - two axially adjacent 3fegÄetspui © Ä; ■ C in a bing core (16) on both sides of a middle 3a .-. (T'6a) wqlul between the Absshlußf! View d @ s cores "Xi ^ g _: e% where the distal © Absehlußflansoh (16b) forms the stop for the distal® displacement of the lens bevel & g (H) and 4 © r stop is formed by an inner lanscting 0a) of a tube piece (9) '■' ■ _ '... ^: "''■ 7 · Sndoskop according einem'der .Ansprüche-1 to S ₆ characterized in that _t eggs äußer® Hüllsehlaush (4) Removing einem-; stead · »lisable® plastic b @ stands _o ";,.: ; '■ ;, 8 _Θ Endoscope naoh one of claims 1 to I ₉ characterized in that the lighting of the viewer (sweeping = ■ stand in a known manner from a lamp attached to the distal @ a. Bath, e There is a light source outside of the endoscope, the light of which runs over a through the sadoscope Patent attorney