DE1944093U - SYRINGE FOR MEASURING SMALL QUANTITIES OF FLUID. - Google Patents

Description

description

to the utility model registration of the gentleman Ernest Frederick Dawes, Sunshine, Victoria, Australia

concerning

Syringe to measure small amounts of fluid Priority: 5/11/1965 - Australia

The invention relates to smaller sized syringes Flow medium controlii.

Until the recent development of vapor phase chromatography made instruments necessary} with which extremely small amounts of fluid can be measured and injected with high relative and absolute accuracy ml _5, however, results. a thousand-fold reduction in size to a capacity of about 0.5 to 50 microliters, as required for vapor phase chromatography, "the problem of size reduction and its aspect! serious design limitations. The smallest sprits for gas chromatography therefore have tubular®

_S cylinder so that only a fine wire can be used as a piston with a very! Your bore. The handling of a KoXb.ens made entirely of thin wire, which kinks easily, causes difficulties. Various external guiding and reinforcing devices have been devised to overcome them? for example an outer reinforcement and guide rod * which runs along the Sprits ©. These additional components make the syringe complicated. Another difficulty is that the injection needle must have an extremely thin capillary ₉ so that the volume dispensed from the syringe is kept within a low tolransmit. The injection--; therefore, the needle is usually fragile. The dead volume between the Einspritz.nadel and the cylinder of the fuel se that is not swept by the piston in its fully dom eingedrückter- position wird.- .. and therefore aus'dsm no liquid can be displaced _s sm & ay £ ;; -; one. Reduced minimum "In order to keep this dead space at a -"'; / V-minimum nnä also constant, the injection needles of microsipritasn - on the contrary , have not been mediainisaheii. "Sproits - permanently attached to the cylinder of the syringe has been., -, /. for example by cementing, as in US Pat. No. 2 9SsI 087 ^: -. ■■ ": _ ■ befsciwieJbf.n is ,. Thin capillary tubes clog spawns, are .- "/ difficult to clean and, if they are not detachably attached, have a limited lifespan ₉ so that the lifespan of the» ./. Syringe is limited accordingly ...- "■ \ ; · Tj

t) ev innovation is based on the task of an accurate and robust ^ _9κ . _ν leioht 'su cleaning syringe for measuring and injecting sxtr ^ m - ^ / f; to create small amounts of flow without losses. A® · "/ * / S

Such a syringe can be used in particular in gas chromatography. ■■ aiiweiüdfiä: ,, "especially aura introduction of Str-önngsingsinmittelprober» in .the detector element of the chromatographj for example in the flames · «. .. "

ionization detector, '- ■ -' .--.

according to aax> invention enables the precise delivery of ■: fluids without leakage flow under high pressures. . ' ^:

- Feimer provides that the syringe has a removable injection l, which can be easily cleaned, sharpened and / or "...."

sn leaves _s · especially if it is damaged. The Milopospriis nacli <fer "-Erfindung-can also be multi-needle types advertising""■; Wes.nd € i _{^: ..:} ^;;" Me Einspritsnadel can be with at the Spritaenaylinder. , a Tiiinifßalen dead space and replace with accuracy ^, s

Totrauya remains constant. . ^: ''

the injection needle and the cylinder of the fuel © after the » ^;! - TSRF irsclöjßg can vorgesehen- a Jcorrosionabestcindige seal £ _0.e: Vt> tt-organic Dä-npfen cde ^ solvents not angegri

After the innovation, the syringe uses a hollow eli which at ssinea front end suit einia Hadelsitsv

? d.älen cylindrical needle base is provided to _which} rückwät ipB ^ d ^ @ Bv aclelsits extends, a, a Präsisionskapill ^ afe s look from the rear of the En-ie · socket axially c3cfc :, a-en isyl

-β® ^; 'ζη ^] Qßx ¹ Kapil Lsrbohrung sit Gleitait ;? is arranged., ®ia ©? ; 'äM & simti -ifedel stop =, which on ύον Ns.de3. ; mf halhev 'length

■ "'-" ■■■■ "■" "- ■■ _ ■': ■ - *

- »« silierv'sligeordaet is *, sirx ^ seal a ^ o ^ rigssiaterteiH-Po JJIaOEa ^ iSyX en between the NedelaBScMag and äara Madelsits, and-

! /eins.-siiiSteilbare ₉ abnehabare HadeXha te% rorr'iahtung that the: mxt "* 'DÄöfetüng ... holds ev Dx ^v piece and clas i'üa] ;; aeit.ige end of the needle home l halt , ■

? some sizes can ό®ν ifadsXr-iryskel the same size ©

S B'E> öSisi! I wacks B'ilclu'og eiB'So Mad ■ "· - ?. Bocikai.s ^ u Ve w®pgpfißevn _a Die 'VerTingerung dnr L ^ feisno; üoinn dnroh Fviäsisio

yniaeJiruffipf «ng of the pipe on '^.'. ηβΏ Ht ^ fenför ^ igeB Dor ·« ^ u gsiiairt: ΐί? © Λ ^; ίΙβη =. But it could also be f'cs E ?? dn de]? ¹ capillary ge -.- © ■■ qiafflOJvS'®. ^ And dahn jait a FrS ^ i '"i, on8bohriAng provided weyde Ditg • ■ V ^; öic? Gj.? C>ßei" ^! U! Ssg am? Bore leaves oi ^ h tlurc] ·? Au-rT ^ lbea odei 'ljimr _: en: -'- "iap-ter Hitse run. Ba ^ vorfiele' Πκαε d .-- * 3 Raw gas is yö ^ SMgssiieise smoothed. Ss is wünrifib ^ ns ^ J ^ rt-, üaä · ϊθ l

g4s "3femtfS: E and is ground pn ^-:; .:> e ^ 'r.eichen 3 -;.: elle, dan. the · le end 'isr needle with d ^ .r · Hv.? λ -V '~ .li "br ^> ic" .--- ?. ng the on,

fed. ^ X ¥ r:; il in cVm. $ oo? cc3. his? <~>·>'"---.r-;? r ^ M- ^; aPo" hX? -g ez ^ gvfvi

Way to calibrate:

; According :: ¹ preferred embodiment einsx umfoSt the syringe NaOH. ■; d @ i ^s ; · ffeuferung a cylindrical guide bc ^ mrajig of larger bureh -m © iise ^ 'ciifs dsx »KapiXl-aröffmmg and © rstp & okt itself axially z« eiern- "-. SohJ? -Ms at the- rear end of the same, wofosi symmetrical '-.. \ g; ö ^ .Riteks © ite des Ausschlagdoraes on this sin .T-.jr.l5.ndrischer' ■

.is secured l ά & ν rearwardly sroat ^ e ^ TUEH ungsbohrung 3Bxt Gleitsita disposed "

■ 1) ae; llöhl «i injection needle is made of a suitable material hm? ™ -.-.

■: gsstel.lt ₅ : the sioh in a fixed capillary group with extremely feiaei '

Leaves »Bohredurcr / messej-p between 0- / 005 and. Q, 13 .es 3; ot , The spit m end is usually ground% \ χ of a softarf * <X point to allow the insertion into e & r * -unCLytissues sit by a seal ^ about qSmh Gunmibüehse, su- ': V -., ^- . However, for certain applications it can also be used; ■ '.-. W; iitfeii.g ^v WXC axis groundB seii>. The stop of the needle £ st _Λ ■ -. \ fo>? s5ags: wise rschtwinJilig sanded.; so that it is exactly © ".:. ' , _::; . ;;; 'i |; fistst <5.13 it results in "Near the stopper sole ^ which is a stop vfes? gi wagsweiee firmly and · permanently attached to cje'v ifadel ^ should be made of a suitable material, for example Metal, s "B _: o ..;.: ;;; travels free 'steel, silver ₅ a ¹ cast alloy ₅ soft solder ^ ·.?. ■'.y; Ktopststo-ff 5 about Epoxyhax ¹ ^ oda /? Polyrasthyliiiöiacrylatj ? asked hej ^ ""..-'- seisvv Spspitsgußlagiisr'ungen are vox'Siusicishen as it is at ^-:.: y ^ SSE efflaten fix can "another preferred metal istS-: vv.:;Wexchlot-"'Bie Sastalt of the stop is not in tight Sr ~' v ^'k-jf ^ ^"t: iS: ö] _hi-j: has jsäooh gtlnatigp.rivaise one vnvAe cross-schnittsf" ■ "■ ^·: eitusi, ^y ai. & Fcsrm ax * disc <; der dargleiahsii =. ßer stop 1 £ <and tightly mm the needle.

-S ^ K @ ;, to? # !: 5risugte embodiment of a- Ifeclel is close to the "-Stöpae ^ 'ends yalt provided with a stop" whose central ■■ T'lgiil "" consists of a * circle foraigan disc of · ! -S rom thickness best © ^m; j where su both sides DERS ^ lbs "kaglige areas äiAg £> © Esen through whose Spitsaxi dio needle protrudes _e the height of the Rolires is sided with a recess kosiplertientlirs Hohlkegelfor-m at the output d®v -forms, which assumes the relevant spherical surface! of the anatif,

_; D,: M ^r; BJ5ipi; tiis stream of H ^<B: - <5rung 3ca'.iri av.ah sip · ?, resilient.. -. ^? Mß $ £>&: Vm £ -e.Uh & T \ -, .dia an d ^ rn game ο λ ar?: - oh lay ^ ngrip and this. "

; 1'J ^ F Kaclsleiti; can na'ah behind »in the Qusx ^. ^ frnivf: reduced .- urm U0p; hititQve part deo! feileia ^ -ohl ^ ge ·? kana backwards, is nl.tt - @ <2hn- <3l.lsr 'abne-hnifin as dsy Q'iisr- ^ ohp.itt des Madel /? = B, is the Nsdelsits ^ onis ^ h --iyBqebilden nnd ά® ; g :. ^>; : iiat eiae Kagelfor-n with ^ ij-em gipößsr ^ n Scbaiteiwinkel

predicted AuofOhr ^ vngrafcMii der- I'adssl consists & a3? ira ^: _s risbföijs- Madel r ^; ;? Aijar _; ;: pf "»: i 31.it the Ansohl ^ g with "aXt ^ rimg VBvnchp.n int .. die; d <an vov dam], i®gon *: Jiin part of the '·! · ■>? ·] rsi n-ag ^ M: jind i.4Vß vo ^ dt ^ röng g ^ gc · <i ">. s -T- ^ i -; -.! Α: ··· ^ Ώ'ΐ.ίΓ! Αΐ "^; : '*: ■ <; ie '«: - Ei« Γβ aleszv I. ¹ ?. 1 te3. "U.) ■■ <; ■ ·, V: -! Uo ·; .. ^; · ίη ^^ rsites Verotä x'r.hmseriir · iif ^: ö;? '■■'.-; 1% -;. air, -lar 'Ayß & nci

φΒ: Müä® £; _:} Ma. that 'stuck with dss? Needle is connected and this

surrounds- imu? m &: ü ^ onigatc / se ma end of au & ®v®n <_ . gfös? ohr @ 3 near the _{Nadelspitz 0} appetizer is the "■;" _ '. l ^ stä ^ aE ^ ssohr ¹ also fixed,;) cdoe · ?. nidl'ü: aotwiSBcligo ^ wsiss "'" _: -.di ^: oii: tj: api ^; ciSiä5 Ansohlag attached. Choice ^ e-; «can be ring-shaped !; ^:

Boiük'BMMi ' swi.solieH dar Madol and da; n 5u. ^ O ^ an Vs ^ starkungorohx ⁵ ". ·.",' -., Ä.uS-g.isMl ^r 2, i: -s <3iE, sB, nut X "ot _s K ^ natatofy or sinem adhesive" - ^ ifaip-sj ÄcS :, EposyhsÄ3? K «Vos ^ swgswaiKe will the iiuBars V ^ vstä.vkrnigs-

^ Qhr> sah® ..dem Kads.le.nc «e smoothly sealed.,; -" B .. through Si "-. ^r - m ^ bMüsiiW äe & SuBeyen reinforcement tubesB ί \ ν: χ ήη: - needle v, n4 Ab «; ■ 4lG & fc®ri- ^:? ? l «äa &! 5iben with sinoin ^ äxrmib®nWsidigß.: i 'Diohtmittel, ^ ₀ B ₃ " -r ^r B &ihävQMz'.tS'? 4 ^{;: i} S Κίϊίη G ^ .a aua eis; ··; ¹ ■ v. ^ E.Xytifeohiru Vor-r-ichturjg ;; ■ © 3; ng @ | '«p?: GsvR becomes _π >? · Ε \ -? Β di.cl ^ aslcl 5.η d: i't ; 3c cintroduced we'ö. ₀ es.vi ^ t ^ JiidQöii ^ xiioh ';: cr ^ ior ^ .srjMcria dar iivfi ^ r'.; R -:> lit -iiöläVge .: cl # J7; -M <s, d ^ l odor rsahn dem an ^r ipr - "'ji • ■.! ηα-ΐ- ο.Λχ, at the stop _? -. '. isöiaafeatiB- 3) as outer v ^ rstcl '/ lcxngsvchr ksvui also xmiei ^ aXfo "des ·.'."

fes <?? iteg® & end «;

- .. Bife; fea3fe jsK'isehssj. ä «m An ^ chlarj iJ-'irc- ^ aOeI imd dom Austritt de? _ s ^ iPg ctes 3'.alibi? iertCi · Ab ^ '- hTtittre des Rohpp.s the ^1st : ·; Iri: su? j ujigeraintiirtßH?; * v,; i-: e'^; : ieafXuorclthylen _n Es Mt """Stsllt ₃ that -lünnes,« ngonlntertes PoXytetrafluoK ⁵ - which i ?. j ^ -Phr ^ r ^ n Snr5.ru?ten ^s . ^ i d5.e! fadai In the ..- hlaga © g «iiiok.elt yfwx'de,? ^ £ schoB de ^ i stop wnd; yihn-.v.ng bilö €; nden slings vg de ro Prä ^ islonsboh ^ img dss>,;« Ki- ^v iKivnlrV ^ i vi-j / d'sn iw »n -'ίπΊ ^ inr ^ plohera Abdiohtuug.", · ''. o * ^; ... Ί ''':.?.? * Ε' ^τ-- ί ^»ΐ: ϊ3 .-" Β and Q - "j"^n;; af so höh pressures up to about

SS Jcg / oia "surüefchaiten karu'i mid while its width and thereby the exact location of the Siadelendes asi the Wullstelle calibration retains' also bsi repeated use. The amount of PclytetrafIuorSiriiyleabsndes used is not in tight € r @ nsen_. _S critical provided that it swiseheri possible loading points of the end face of the stop and the bore hinreichend'abdichtet. a sufficient length ₉ dis .. gives a .O-be ^ wurfsiutter a seal according Kosipriaiierung through, is O _s OO & rbis Os025 cm ₉ y & rsugsweise bsi O ₅ Gi cm.

Sin b © vo ^ ssugtes Vex ».fahreh 3u * b making the seal consists. da ^ in that a Str-eifen from ungesinte ^ tem Folytretrafluoräthylen. · 0 _f 0o to 2 crs length and 0 _s iS to 0 _s 6 to the width "nd of 0 _s 002 to Oj02 cm thickness to a length of 2 _{s s} is 5 'to 10 stretched it "that the in-band gastrecJcte jnelireren layers usi the needle wi.3 dj wound so that it rests against the stop, and that the thus formed .Polytetrafluo ^ äthylearing swisahe'n the - ^. sischlag and the conically 'shaped Eingang--. cl € s tube of the Spi ~ ITSE gusasmengedyüöJct is "a particularly practical brauc-iibaires Polytetrafluoräthylenband is 0 _r .0i cm thick _s I ₃ 2 cm long and O ₃ S and has a width in the stretched condition sine ΐ-Srsge of 5 cai «

Sine bavorsugtG shape dev NadeXhaXteeirsriehtung is ein® nieht- "kreisföy-AIG QucrPscfmittsforSf vo ^ sugsvieis® exr _like e square. or hes: agO2iaXs Qiiorsehnittsfor'si about - a corresponding one. Throw »

prechenden. Throw »

irsut-fool; _? ;. ^; .: ^ si: .- "; d ^: adu3? ch vei'hindered ₃ ά & ίά the Spritas inclined a FIcicKeii / 1ίί9 So.l3: eri kosuaeu. can»

«■ p

Innovation "is with reference schesnatischez" Zeiehnungeri ^-: ä; si ζ>& ν®Ά From £ ühr> ungsbei play alongside described ,, ^ ^v:; ■>.

View of the fuel »

^ ⁸⁸⁰ ** «of the spritae according to Figure _{1 |;}

^ Intertwined representation of an in g? aß _S rep dar

"let a disintegrating pgeasogenic representation

according to "Figure 35

in the Hadel ₃ and '.

| ^ in a long cut a ^ ! pen holder for

^^ igoreni to 3 needle shown,

β ^ Φβά Eigte ^ es i and 2 illustrated Sprltsü after the ⁴ Jl Ä ^ © msyliad ^ isohes Θ1 «βγ · ο1? .ρ 10, the au. his \? ordep

r'tigeri end of the base 9 a ^ s er-atrackt sich e

one

g ^ ^; ößepe3s Du ^ cfeusssep axial is Ö & sr et ^ a the hslba Xiäage of the same _s and this

: - ^z -: -: - 't' .- 'iM-f4xfyii.

g absorbs the fluid ₃ as it does "- | di®s @ iit ^ a6g®isö83a. Over the remaining part of the glass & roiwßB ^% ■ ^.; iö -e ^ t ^ eoSct there is a nooh larger © .. · H ^ -PüröMce-ssej syssmetrisch sux "capillary hole 11 from the rear ';:?...} ^-End®:' - ^ Sselben: organic Bohpungen 11 and 12 go into _ginesi;;; _ _Λΐ / ■ vex * j-öHg-tsn "area 13 into one another. . '' - ^{>; ϊ} "'·

E &: l & t ^ eiiie hollow needle t'4 provided ₉ which is ground at right angles at the front end® p; gits.t "Maä .at the rear Eßde

^^ χη this gshalt <sa _s what about ein® with ehens Hölse 16 _s gr'eift with the outside

des Glssroh ^ as 10-puttied-est. "Xn the E IS. is an opening 17 vox 'seen

r ■ ®n. ISBt. Within the: ast ^v ; e3; a @ _; ;; Si0Bffi | .scxieii> e 18 arranged ₉ . which the opening 1?

IS stop abuts _s so that the needle coaxially JLO / "- is geiiälten and post-backward iSngs.des

-% 7 & ρ & the screw cap IS on the sleeve 18 g @ ~, "///.

Ti is an ejector pin 20 Kit Sleitsits " ^{χιιχά swas 3} with a tight fit as possible,

; ^^ s © 'vK5it ^y a smaller game than 2.5 microns »To the ± &&®" 4 ^!: -' / Säiäe- ä®z Äfesst®ßdoj? aes 20 is the guide rod © 21 attached. ^ - -., -; "■ '. ^; _: d ^: ie / - ^: '-fs? @i'. _r öie ^: '5iogIieh _s but nielit looker in the guide hole it - ^:

. The purpose of this · guide rod 21 is: ■; V _; die: -Mögliöhic®it. au reduce that the Awsoßdora 20 bites:; _: wegf κι -'ISiigs. of? Kapillarbohrang ii is bent. The Äußoßdora - 26 ^ iö ^: di® Führuiigsstange 21 can be made from a wire ^; '": .sai? £ ₅ ; the diameter of which corresponds to that of the exhaust gas" / ^: wofeei iai? gs of the area of the guide rod over the back; ^{5 of} the Füh ^ np.gBstcaige. The front end of the

be geapgea »so that as touches the braiat ,,

^ φ iBt ssin ₃ where the tube is konaentriseh stsm "

', -Qveik t.dus-cli'eine Lötsaass © at the rear end® of the wire and the ■ sixt-desi wire., Vsrbimden ist, In this way you can see V @ 2? U ^ i? E3.axgang@n ztfischen the wire and the * ■ · tube » iX2Mt & ^ & n ^r -Exiä & the guide rod is © in Daumesstüek 22 ;;; ' A ^ @ Stigt ^_0: J) i @ - G rößtsn advantages in this? Construction K 21 and the guide bore 12

Verseliene length of the »Kapillarbohsnmg 1 & -W ~ si $

'3; is swisshen des ¹ Iconic Ausnehsmmg 2 ^ - am

9 and the stop 19 © isse Dichtusig 23 bm & tetyafluo ^ ätiiylea arranged «The stop 19" has · - ■ di; ® ^; - G © .stait.-a sentrcilsn cylindrical area of 1 sam M- £ it: - gis: §eid®K sides angssetate ^ conical areas 2S and? ScKöitelwinkel of the kor »iseh © 3i area 2S is larger than § ßei.telwiiikel de? konisohea Ausnehsniiaig 2 & _s so that the Dieht M -:% m Nacfeä. I ^ Mk is pressed in ₃ when the stop i @ moves against ih ^ -10; wi ^ d, it has turned out to be ₂ there

^ ;; £ Κϊ £ ΐ

Xeelcstr = öffiang between dea glass tube 10 and the needle.

Ä | ;;.: D3? Üe.kan of 3S kg / cm ² *

^ - 'siigt another form of the needle stop. and of the other exemplary embodiment , the needle stop is designed , with the flat base surface and the recess 28 being a hemisphere of

g 23 is produced by © in unsinted ^ ti

lfenband- of 1.2 ca length®, 0.3 ca width © un ^ W which- as 0.3 ice long band of a 1 ₃ 2φ ^; _ν : rafluoroethylene tape was cut off on ®§ff tfvS _;; Gm stretches. The stretched band is then wrapped around the spring ;; ar WächtwinJclig sup Hadelachse, so that the £ # d ^ g ^ hastened. Diehtuag _: disfigured, ^ T

I ^ stiffened "tfes ^ den soli _s can be used the 'in Fgp; äßj? Ge $ Mn ^ M & bracket. This bracket includes eiiir-r

ßaren for the length of the »needle 1Λ from de® ■ ';^; after vorKe with Einesi distance surrounds "The StOtE- \ Veapsi; stretch-see at the rear end about to the middle of the: liage & iB »; On vöx ^s represents "K end is tapered the Stützpoliv; so.-.-. £} \ bb; g & gen the outer Oöerfiäehe dep Madel lh comes, and is. - ^ going out, connected a soldering compound 30 »In this way

uaie avoided in-which see ■ StT ^ jamittel asi HFch the probesi during the subsequent rumble

The outer surface of the glass tube 10 is provided with a "volume" scale, 32: the zero mark 33 of the same branching opposite to the rear end of the needle surface 9 or n . The "back string of the same is arranged in such a place that the back of the needle can be attached opposite by appropriate tightening of the screw cap 15." -ts movement of the shock can 20 can be precisely adjusted so that it ends at the scale.

The SlassOhz ³ 10 can thus turn made that m n about half © length a- expands with a Kapillarbohtfung of the Gs "OLS @ the · Bohnmg ii vejcsehenss capillary tube, approximately dureh drilling dus or-? 'Sh chafing under Wäme, Voraugsweise is the Gltisrohr · AEO but dux "Gh Versehjaelseii you SWEi pipe pieces made of _s-äeiiesi the ©? uttg into the Kapillarbohruxig 11 and the other the _Fühx" ungsbobi :. ^: 4.2-has _ß - ■■ ._

". The stop IS can be made from a SpritgguSlegxerung © der- from © ineai Lot _- which is twisted off after Aufbi? Ingea on the needle m awf its final forsa.

Bas Glasr-oh? " 10 is usually made of transparent or translucent material, but in some cases a metal pipe or a pipe is used instead of an oil pipe. made of a different opaque material, see below .. "'" If there is a scale on these types of Sprits © -.; -.-.- "

? j need it can to ά & ν outside of Fühs ungs rod 21 anga assigns his '' _r:

"The" Hadelsockel 9 may be the same configuration as the Psrässisionskapillarbohs? Uiig? Capillary "hole H _5, ao that dev base AEEI by the front end wirsä formed 11" For achieving the · haste "properties of this? Construction it is necessary that the FUhS ¹ UHgS rod 21 and the guide hole 12 are longer than the ones with &inex> division © length of the ⁵ capillary tube 11.

Claims (1)

RA.249 463-11.5.66 '' S c h η t claims Sprdtse sum measurement of small flow areas _s through a hollow injection needle, through a tube ₉ which at its? is vordarert end with a Nadelsits and ainem axial zylindffisohen NadelsockeX, dev rearwardly extends from the needle seat "provided by © ine Prä2isionskapill @ ^r> - ° bohrungi the check vojb rear end of the base axially through the tube extends through a cylindrical, sealing seat thread from push rod, des? is disposed in the capillary bore with slide sits, te by an outer needle stop, the same is disposed on the needle on haibar length by a seal of unsintered poly met luox "Sthylen between the needle guard and the needle seat, dus nnä? ch an adjustable, detachable needle holding device that holds the seal under pressure and holds the rear end of the needle in the needle socket. . 2 ο syringe according to claim I _8, characterized in that the »needle base has the same size as the - 3ο Spritae claim odes t * _S 2 characterized in that a check sylindrische Füh ungsboh ^ ^ ung of larger diameter than that of the capillary · · = 'to the End® behind the capillary ¹ - connecting opening and extending axially to the rear zwa The end of the tube extends9 and that the back side of the external push rod goes over ⁵ _{in a syiindrischen FÜhxmngsstößel s} which is arranged in the guide bore yes .Gleitsitz. % & ■ ¥> i <ft; i ?? F ^ «i: & fö H ₀ -Sp ^ its.e ^ -n ^ oh ". Claims i to S ₅ characterized ;, d & äß & The needle is ground legally. -So: Bpi »£ tÄS;: awake. Claims i to ^ ₂ characterized in that _E 'close to äeift-S * 6psel © nde a branch cut is provided _s d®r- firmly is attached " . : '; t: \ S | s2? itse ^! ώ & οΙϊ ÄBSpruoh 1 rock 5 _S dadus ^ ch marked _s da% _; , .. ", -". ■ '; 4 ^ 3? I stop ■; ei-hen central part a ^ s of a kpeisföVTAigQU Selseibö-. _: ; From / '", S ·' to 'S ^: ηοώ DioJce, and that sii both sides ö <srs <§ibesr - Jfeeg © l £ ge.- ■: Bö?». @ Aöh © angfensen _s through their Sp.itssr the needle ' _t .- 6, daäu ^ eh marked that the des Rotess with einay A? Isiiehrauag H. 1 Isis 7 ₂ dadureh gs _s ^ ssh @ n is _s the an dsm Nadslansehlsg a ^ g3PQ; ift: -uriCdies @ K against ά & η Sits press «, -; .- '■ ^-:.> - ■ "' ■ ': y ^ ti ^ Sp _itse:;" Äch claim 6 characterized ois S ₅ in. ; feii <ä © s lladslarsschslages -Bach hisiten. in cross section ; @ · 1: 1 ^ ι * a] 3ni2rflr »t as des? Quier-scslinitt of the needle seat. lisch claim.! up to 9 _S dadu ^ eh marked ₉ '' needle stop; lying part of the »Hadel of egg iasigeöen is. according to the claim: - 1O _S thereby gekeRRseiehsets that eia sweit © s reinforcing tube ¹ forms ,, the © « gpößei? - Is as <ie ^ ÄuBendurelm. is connected to dec "Madel UIID this di swas" w®nigst®Ks as sNDA of § "ßaysB A ^ sgs ^ ueh- ii _s thereby g @ fcsnnsei.ehn @ t ₉ that the ^ susätalieh firmly with the stop . 10 to 12 ₅ thereby. .gekennseichnet ^ V-ääjl ^ V ". i des ⁵ Hsdel and dfsa is with Lot _s plastic ₉ Eposyba!? ^ | i | i ^^^ Claim ^. Msl3 ₅ dad ^ eh gekeniweiehnet,. near the Nadeleside smoothly to 1 ^ tn @ eineai Pplytati ^ ^ afluop thylenband ^exists; % i ,, 'see? e3Pfe'h "'" SehlGhtan um die Ma.d © l in des? Hähe the Ä PATKTANWSLTE DR.-ING H. FINGKE DIPL-WS. H. BOHR OiPL-ING. S. STAESER