Continuous flow catheter device

j? A ba the ter defies used דד ^::::c sateer;:. rat-bi is blood vessel during hemodialysis which s/mpr: ses a h?.:.;' :: »ssem?01y having at least a first and .»;><:< :.sad flu id vend:. :: t. n jj e׳«ch of which are connected In fluid «:;onssunication with || separate concentrically disposed tube elements so as ** |j define a first and second fluid flew path. The ancenio׳'. i| arranged tube elements provide for a single puncture 'n-<;

ϊ! the predetermined' blood vassal Wherein the first and .־>.>.ד<.?ν ij fluid conduits ar® interconnected to a continuous negat-sw ί and 0<3s it Ave source of fluid flow so that blood, will he 'll coatinaonsly .'drawn from and supplied to the predet;u-ei?v:?d κ blood vessel by means of the outer and inner tube ahurra/as.

. . ,-X’ i! reapsctively. ' The hub assembly may comprise nt least ׳'>.<: ϋ ._f » aab portions cor re'spondingly dimensioned and t-onf^:igux r to du fine the two fluid condMts therein and also provide.

,o'.-, ;uro for securing the inner and r-ster ?:׳db.;:

i to the hub as§e.jsfe.ly and further provibs alignment :.:;:/:ה for properly positioning the two hub portions into $ ^!:= $:?י.»־gement with one ׳mother to define rhe operative ;־v.b . ly,

M *>.>** ׳A< nGROUPO Or TH® IHVg'hTiON . ΑΛνΛ'. Λ,Μι,,'.'. Λ'.'.'Α'Λ'Λ'.'Λν \ . '. .,MWA'.'-WA Λ *י.»*..י-' י*.....,\«. .*-* ..Λ :: *־raid of the Invention .* . . . .'. .'. .^,.^,.V. .-. '. . ־ .V. . .vV.'AVA AM.'.V ij A estheter device priiaatily designed tor :«a th er is« time 1?i a pj.edeterr־d sad bJ.<x>״. :ease) «ferlre :! pror<::׳s of hvuctdialysis and structured /: 0^:.::;

i; cha rar r 1 s 11 c a wh 1 &lt; ״. t η c 1 ude &lt; נ on t ־. ־ -&lt; u: : *b *%׳ o: ' ' &lt; 1: ...

|| and from the vessel through .^:I.uid sogv .׳&lt;;ate?? fU-w :.at

:.I oos.it a enable into tr>. predetermined b ;<:) ./ג״ mi by ^:: ,?}.: t *j || puncture.

ji _:

I!

? . .reray an *i'h 0f the &lt; v two :

These pit . of the s&lt;; ten chual *he -te'kh;

in the performance of both' dinlysis to utilize two separate : ':Ί or vessels being cathet.i?ed.

separately requiring at b-t turns of the body of the patient, ,''natures required tn the placemen* _Λ'κγ8 is naturally accompanied by. .!'.feet to rhe patient. Placement is accomplished comssonly by

The Sa ו dinger technique levelv^s ..' i vein with n hoי low needle. A flexible wir< ,.Γ i _Λ; ץ »V \ pdb' S’⁵ 'P 'T'¹'. ’>

<:;. ahdre wo cvh.r ths wire and « plastic Slew Lt;. .'>.;4ed down נ«\\ל the wire using' rt ns .; g 4.?.. 'i :'>. .λιΜ of the catheter on tie tut'.’ .:-נ .; v .-.,- .יe 1. A 8“י end catheter is then ’a rt< ־. -.anuer thereby inquiring placement of ו ג.'.׳ < pat Uni with the attendant pain a$ set *'* se the tact that the sermd catheter is sIk: aifflcul* to place than the first,, espeoia ,r: ,:hoei י: ^; f h;'rut levels is it it eominon ^:'׳::׳r גת;: xs μ.γΤ®'! :¾ of r.ne patient to be ra<j ;:;.red. In the se 'ond catheter in the safse bl catheter in relative ad;;went lose -he a .-.־er :i.s . ;’->-:!> 1 - .so by th wh«c si .> *׳/! ng ׳ .- - ־ ng οι entangbsssut. o>. ''. .<-.;<.>..

catheters ^? ;.rations ז placing ; v f ’. r . t &lt;׳ the reductionpatient undergoing the dtalysrs

-&lt; of a flow catheter ־. יo.'ter tti.

and outer catheter tubes would nuturallv proper positioning of such a ^.'»׳ ססג.eai־ bvio-.:s>Xy loss discomfort to the in fact, coaxial flow -davsee-s p«.r _; pc ;.or art for: use in generally sxmxlar ז '? λ rdr instance, t'no b. s. potent to '??«? :.<5 to a 1 3 '<.״ י<m eedlo w .?'.0Y;uat.ad robe if is «.set to :.<a-sa hl-ppd 5:1 n<-d v5?ssel 1« the human.'body. An outer > .< ;0 1 י{־׳' י־יy «»״angad tube relative to t .>;׳:׳? .d >Ή pu. s in the external surface r»ovide a <?׳.> ר.'<* Png or dis1nfeci.>ng f'- '׳ emetine of he transit ν.χ »x t of ths body* .?-.?י vor . :this 5s:; 5: so tore ts r^plish flow U th® :u0!sr :H - :;tst tubs $5!55?}.ג?׳ to iitoemp >i.st delj.vs:ry of 0.000$ to v^sseX as x5־?g\:.׳<י.׳d in h< <y-list

In the area of fHalysis medics 1 .־ .‘telopod which utilise«! only זיי^ ר?'^ λ י- i-t't'ii.del. touted סי and 00; fc ! :.־dy ΐό which the c;5thi^s< .::? is p.Utt>d .thfuv rati on of .'relatively co!tplex ma-.;; owrv. wr

There are of course well know» catheters which arc destined for insertion into the urethra of a per son. Typical esnmples have been described in &lt;3ermsn OSenlegungschriften 25 40 3S§ and 2 327 231. Such devices are not required to have and in f ect do net comprise two fluid flow paths which would be adapted to simultaneously supply and withdraw fluid* Also they are insertable into the urethra without employing skin and vessel puncturing needles devices* as is necessary in ^he caee of dialysis catheter s.

However:׳ ־?t י . > ?.h above. Jr.; ς<. r:<.:.,> יץר

..; ί: >0:005031178;>;>־ of t-his. £־?.<:! a:._־ <. ⁵יי d;:;o to their i .<, ^x<i:s:v:y, expensive to maintain and. p:c>twe as well a::: st be :1:0; noisy '.in operation .thereby adding di.'pr־.y׳dvt.

i; of the pa He nt during treatment, .'.1 gf Oth®1' devices known in the ptior &lt;־rt wbb:;70:0 '׳

0:: dosJowd for the transfer of fluid to :ϊ:4׳ froo the body .OiJ&xe ra ::^-resented in the U. S. patent to ^,'i Fu, J 9*,#׳ λ צ :: ;'.:vi .׳;!; of this typo ar?5 sps<>׳:.iii'ally d:b; <:>::׳'::i to i'J: ,. J ?. J.::. < ::: ;:. :i'vu y ;sr .? .br;־ !.:*'״:<; ^::.J toi;>:;r

J _i;i ;:.:;it.״ :;ur>oi; -..ן. a i Uo :::>. ting h-ss 5 ־. of ^? th to '^::0.־: iron .4 : ΓΟ J:?<; :'JgjOit of the b^;ii:״w .?<?':./

J .' r;׳: :־pav: of the o:s :> «Αοηοο of prior <>.rt v:<;

p ' _x'01 liv available &lt;*'♦vices s\o '' - 1 ::

.'־ J Aי' '־': ״‘ + !;&lt;&lt;$0 . ?edioal apparatus in the for י 'י a .?.♦.....

:&amp;i.eatable of offeviration with 0!i^:. diswfc-rt rod .&lt;^:. par:ג:־: .:׳ the patient; 'ideally־ such a iyyice::־Whld be &lt;.:ap־sh J : .;.p. -&lt;o:lnt:ons and eon asr rent flow of bl nod both ⁵_::'־v frp.m

I tete invention rtettes to a ; tester tevtee : tecluding a hub assembly interconnected to a. tube .^_dns

^.:.^ng an outer >d inner tube steetenrially, _Ca,״_daUy י i e <9trWlly arranged relative to . י< > another. The hub assembly has at least two fluid cq^ms disposed Lt .paced and fluid segregated relation to one another wherein a--־ch of the two conduits. are interconnected in fluid aunrcatiq» to one of the inner or outer tube elevente.

Accordingly, a first fluid flow path is at :.:< .״ : parttelly defined by tee interconnapted outer tube el>?mr:t and tea te tee two conduit®. A secund fluid te-;w path cay te -־:

»t paxtrqUy tetenadtey interconnection teteasn the : ' ted the other of the two fluid osteite, tete _;>f ttese first and second fluid flow paths a- <h «posed in ׳tertete .d relation to the fluid flow therein.

.־'.aco of the fluid conduits are further defined ted/or include free ends disposed opposite to their ooint:

,Of nontention or tenotite to the ,teter -rd inner tnte teterte. ten positive and negative sources of fluid flow may he '.''' ?.a<ry norined within the tppiictele cialysit ₈ςεχ_νο*. ר w..n which the catheter device of the subject invention in connected. Therefore, tee positive and negative source of teuxa flow per se does not form Of the present invention hut wreiy., defines tee activating force which causes blood to flow both from, and to a predetermined blood vessel in tete.te tne catheter device is mounted. .:. More tpecifteally, v tee pr^furr«« coWkoer u of tee .pre*.xn tewnttep tete ו ns positxw and negative source of'fluid _a con th and concurrently .activated source ;n> as !<> .>_%η_{ηβ 4} eon-Ma and concurrent flow of hh od to the predt-t י ;;rate blood vessel in which the catheter device is 0, , .>d. Wirt m¹.־’ d .:dWddr. :::;ύ??׳?::?>:: ?^:: st

1 th* free *nd the., ;:;of through wt!.<:?h hl.::-.::: ^.ratted >. :-to

4-T thn '.r:-radst?5siK:i.ned hland vessel. The ©.?.'ter tnixj e t,

U *...

⁷1 . .. ₇ . י . . .

ό itc׳u the other bend is of shorter len&amp;th: and. rerm.es.tes s.

• .^ .

;3 sioacOd distance. from the end or extremity of the. intie.r tune-

S ii ' S'S . . .

|| at which is located the aperture noted .3.:..νν. Th;',u is,

M nlecvr-ent of ths inner and outer tube'por ?.ion of the >1 * ⁷//-¾ ן cetnater within the predetermined .blood vessel serves .:.: W|dis:pesa the aperture extremity of the inner'.tubs ^Kd*^ostrw* t-M|':'of the outer tcbe'relative to the direct ioo pfMocd flow :,_s >;>'.<:. blo.xj vessel. Ths? outer ube rax '>\ p- 5*v ׳>>' t .-.3 f _:.v.״._e ν.._>χ3״ j(ts wall wherein u;־:t x>v<:s are '** ! i .־e< : u ״ '’upstream* e < h® apertured ext :־emi ־:y ot the ^:. ; . ז ״ ' Π t ub«:.

Thereto־::a, in actual operation ”fresh״ or ?Γ W4׳-^;teSTbd * frofc ׳hhe dialysis r־ahhi4e 40%?:>:?:;־ :.<:<?

3:3.3 hludd v-eeael '*db0hht:t&lt;?-ain* of the point where.:^:the uetr*^:.R#8d

?. ׳ v< ־ ג^i:,:־י<.>$> bl.OOd ?.« i'.o ^':? :{.־ : :- .׳׳,. : ז> ..י. ...:

י. < it ♦*׳'>> i *11 ג cot', .rue to flaw xn rhe ssiise

31.||: diiWrt.l0n., this placement of the'.'inner and Outer ttibe u ?:

⁵'¹.'5'י different levels '.from 'one another Will prevent the pes«.' r.«?

υ .1 of >:h׳-> treated blood into the outer t ־be aletsent which i.^:־ ־‘^ h :looated upstream Of its point of :?:-״:rv. pbyieusly ::he :f⁴^ il/'trmated blood will .be orevenred ??:m flowi.w upstream

י * . ^ה . . :: .י. '. ־ . י י: ⁷.: !:ג . .,: .

£&lt;:£ 1: :

ag<>rust ths normal direction of flow of the blond !«

:.1: ?׳ , ., ,: th:&lt;o$h ths;? blood ve&lt;sei xn which 1 be ^tbet« ׳&lt;e׳'

j.

wi, :-,w

<img file="IL51262A_D0001.tif" />

I it ׳< ' ג' יהי *יז >י eat * th<‘ t.'-t׳11 \ > _t ί ft;.; 1or:'»affot> in what ;:ay be termed: ,a '0;mtt;erf ly'' f;igur.-rtion. 1W&: «pacifically, the .'hub sswisobly i.

two h¹^ _s'< s' < Lon.? each having a corretvend Lrsg er״״ and ; ach hub pvrHon including conduit p״>r* i«n?< wh when rhe hub portion?׳ are arranged in 'V.ed, 3»ר^״« «?:«!iion to one another define the two i^uid v *';Cu «;?ץ <K’h above. The two hub portions ire joined a b־״txon lias: disposed along ths gob'*antral 0’. ri;? * ub oeur.s such V. ־st the jewed han porttons .\ ΐ < ly ftyw.e.'ri cal ue'nf.isj'urati'O» «,'>' ־''׳ ;

οηη -;....^:־,η' of the χ^^Λ!״!'in esc .' ''’¹d ccwxi'i:!s e hinge ’inn such t /»״; isu&lt;:tion line׳ the *־h s g ^׳,.ii&lt; \* ?׳is ΐ v '&lt;. ־ &lt;' '' n&lt;; s' t ? \a '&lt;i?n b portion.־' ether !=׳h &lt;'b*־t wi&lt; '־»־;oat 1 ay ans.-age fj;^O &lt; r¹8a, ;' '־ ׳ .t' huh s«r י,-.:} ., .,.

^v>q ' י' ex ' ט ״« e _vl י s the i'exr of an oatw*>'d:iy extending flange at Idast: xrh hxjh oortion r.'.ay־'$ η of the pv; ;:hery of'־.! ־'־., . a . ;׳'0 ג erse ־>.? ch.^c-.'sed la Mating 3nion n xjltcanonic wei ' or otb*^' .־' ana o^f־.; together by scaling means to define the hub assembly ?-n its cl ,operative position

Other atTVCtural t>sar.ures of nho hub ks»t raeans letegra’ly formed th״<<er!hly include ss>־.?. hav roynting o ס־ ponding ly 'onfiaured« י ־d ~ r<־' r .'s”׳ '־> snrt ?״»ttached '.s' the ίχΆ־ wbi'-r ;re such »hat nountxng c' the tubs' clement w; I! be. . e sr.s ;» '.an tn* s .<־.־.'. 5.'\1 rgס; t ioning o* th ץ. י; by bi I'. > nt s't'ox ג 'naf.s thereby tsanin: t ;ng the po־s ;>£ constiu£ti<;:g, co'f'bitatioy; of bX;sS!<i:at; of parts which will.be ;?»λ.' U'wJ ;

>׳ ' t~׳♦* h«relnaftw set foxth th«s scop© the'will ba indieated i«'the elaiw.

5M 'for a toiler vn-Siix * dj;«.: ?w: <;f ?>;» ?.:?.':?<- ν:.:ί.ί ¹ ' ' ;><'>' < * the '!>r!'^kwn₍ rsfercuuu should h״ !.:?:i ;:<? th« s '^<::'^<:w '’*9 :;:1:-:: ׳ l<>d description. 1:--3 ks:r> :< r; i::i:sniiO«t.i>.:srj wiry. ;:.he

5|«&lt;x!3»sriyiri&lt;j drawings in which:

£> ;< MG. 1 in ,ץ *root elan vv«w 0ΡΪ 1-|! '. ... ., ״. ,,.

71|di?v:soe of the present invention.

^ .? FXC. 2 is a front view the '.01 -r^? w י י '.'>.

9. ?'.׳';\ י« ״i xn׳ partial section and. cutaway ot the subject ♦ .h't-:

^.’4 * ^f '- ^ .* detailed VV'w <M tM י י -סז־ ³. ' ! i:׳;« hdh .״.>.^: .: hly.

M._: FIG. 4 It a detailed viw in p;:?. xt lai crsac :^'4.^::^:dde^:tion p^. tho co* : π;; Including «;??; .and..־.c>w::s t.:W < J ' ^:' *^? s f’fw. 5 :?λ a «actLcmIvie.'. .!tong'Id no ::>f , w. σ ' 'סיג״ 'י ז:׳.''־ '׳ wv‘?.! <י '' ' ׳'־ <,

^.' E1G. £ s a 8־יססior.al vi׳«' along !π,- ..

>. ► h׳''׳<>> m the sc '.at ipnship of two huh assemblxns v׳:

eating rslgtimi tc! one aliother to form the hub ??0:3.:.

^;t;i FIG, '7 is a detailed yiew uhoylhg ;:hi? l:ww?'toy &lt;.'.,. o' the huh assembly and the ro la tier! ship of the two jgln.ed *'כ..*» ־ po:tJnn-s forming the hub assembly.

^ ״ MG $- ן ז Λ ׳'t < <*' '<. bos.'j^ V-' ' ,snt . X \ . :y:j> Oi:>nn® u???d yo'icy® ;: rr:'??.ty.o:i ??.; ^f: w: iyb pox’ tiOr: to -:.-00 iW׳f ; ? y «?:ס:: :?; mating relation.

bi .. .w. .

: |? Fi-G».:S' ts a detailed view ??&lt;: a cocnecto:: ;:??;:?'s .;:..'.

״y b־._; :».,eluded in ״r.׳» &lt;. m ׳.:λ OifTv u ί -. ־ the ; :w?cu'_:r - y. u ||| ! . י :

4^:4 ? ?&lt;.

j lit 1i.4׳'׳ .

' '4. κ .י ;5׳ ϊ > *_lt-u . '' 1 ׳י ; <

< i J. .showing this con<“׳?:;vtx h; ;celatiicn tsf t;־>. ?><;’:*?:: ;stii ΐ!!:ί!>4:ί: tubs el<?<wMssrelative to 3j> v '^f⁴־r

Swilai :reference charhc-tere. refei' to parW thx'f'.iehout the several views of'the': drawings.

1,| . ' >1 ^As «hWf? Ui Figs. 1 and to the-'suMect >:g .:'.WmOT relaleg to a ca the ter device :;«nrratoy indicatod ⁴:| .».^<b10h .:iHcludes «׳ hub׳ assexsbly generally indicted ־?.״ |:12 having tub« mans. 14 attached thereto in a maner which $!' will be set forth in greater detail herMnatter.

? j .***th reference to Figs. 3, 5,-.:¼ ?and g, We ⁸ ; ^h!־^;;'^:i^!:' ^:&lt;!^W ² comprisesat least Wo !:d portions 16 ״to to $1, wtoch .״ay he integrally connected to one another .!long ״ ?0 : co! ״on junction Line 20. At least too fluid conduits ?2

J .: and 24 (Ftgu, $ _an4 _{8) are} tormd on the interior of t-to nub a*.s!«bly 1?. More particularly with reference to ⁸.3. 7 : 1ןס at 1 east one and preferably. both of ;the' htfb portions It ^A ' ' gxaa.ly t ijx'Msd there\ ' .הי J nt p<v 1 !_v>»!

to to; ^{;v: d c ?i}'^{ach o!?} *htoto conduit prsrttons mhtisnad ere toma to ^r\ ' .'^m i^ttiaHy tofin״ respective ׳.'ondutos 2. and 24 to־ .״״>.' ''to׳״<n .in toys., u .and 8. Joining menus in iho for מ n‘ « : *»xtond autoisdly about at J. !<:!: a sort tor.

ΙΓ._; the pextphery of each '״to portion U and to. These to .״־<. *to; nnans <u« correspondingly posit toned so *s to be hrducb.t ._¥ן;ןן _: anto- ::totihij. er.gagment with one another toig. gr. \-_r; *׳' ^s ^tgnt״*vt .man's in the to™ of tongue and sooto;tS a to« a-1¢ .י _λ33 4״, ,_c -pectively. are h'.regrally formed to 41. the pt^.pheral flanges 29. These, tongue arid socket s.leasts **to. to and ’2, respectively, are correspondingly positioned >r :: ...

^^Λ>'^Γ '^;i;?P^ctive flanges 29 so that when brought into took to .r, ^א ; '*' 'to! ' to'׳.־tor!<«nt: «J. 3h_Own in Fig. g the :?mito.g purt!.'.?*.

rar huh asse!toiy,_; car sly ronton.t pgr t:c:._;ag ;to ugd 27 ^ϊ| will be properly aligned so as to accuracy torm th־:*

ί.Χ'ΐ״' ;: ., ' . . : :

!, individual fluid conduits 22 and 24. Onr mbod:;u(??st ^::: ״to^'²²' ' ||:|^:״DI² ' ;&lt;:&lt; &lt;.::, f

S *lb

^^יייייי»יייייייייייייייייייייייייייייייייייייויייייייוי^יייייייוייייייייייי.

r-ct _:j:,. ;; y:•<0U-;> < :;.<< ft . י Ay½-

a χ »%«'י^ג^זנ« a.xne y .^ן$.מ,גה. a

״.' d c! h״>told _<״}γ.Λ5 ; '»t !or; U ?nd *$ _!nay fc ef'.'nt,. ג'. i«r into mating־.t״jo! .j'i;׳ e to*\ .!.׳ ס:

.8 .shown :xn Fig h ub pox' t ג on s t € &lt;? r 3 1H ., ! *

Uv!_s-.«s 23 are ..!f v.4!_y attached ό ο ' v.'.:v'r &lt; ;

. .ire . .g־coa.i !«Uy affixed into sea .י!

דס.׳ ultrasonic ־seal or other .'.pplicfto ft the ‘00 hub portions U and 18 icgei-V־-.

<td></td><td> As show{</td><td> 1 in Figs« 1 and 2</td><td> ..n# y$x h^T'Xp.;;־ &lt;r;</td>

<td> ft. &lt;&lt;.ft</td><td> thi': h &lt;b stfs-hly ;nay</td><td> or the r s. י'.׳ י ^,.'de a</td><td> .£U ft. ='^3: .'¹' '.F'י ' '־</td>

<td> .</td><td> Ci;:׳.i s a ;</td><td> :: ׳ d i n ג n 1 e r couhe ό;:</td><td> ?&gt;.&lt;5־ tier. .:.&lt;־:</td>

<td></td><td> 'י; i &lt;n f Ji p .το; ;.!י f t</td><td> י or a־^-, xi a st 'J'״</td><td> ft. &gt; I &lt;x - ^:. a</td>

<td></td><td> t.hereof. ׳This web p&lt;;</td><td> 'tier, rray be us׳x!</td><td>^,..xf. vitx' yftft j.«'?.&lt;&gt;,'.^K;.׳.;י.</td>

<td> y &lt;&lt; .׳</td><td> r ' n i!1c1 דוס, .«ν'ς</td><td> &gt;^״r packings, i.t</td><td> ft . : .׳H ::&gt;$&gt;&amp; &lt;;r .ft dvd־ft^: .^:</td>

<td> :0 .־ </td><td> : ??״-;:ήόπ η;:' « .With 1.^:. b!</td><td> ho Figs!, . .'..</td><td> .:׳ x׳-:ftft:׳.ftftftv.';.- .ft</td>

<td> י . Xi ;</td><td> סי.?! ''uid eoudui־,' ς.'</td><td> ,orally .;v, . -;</td><td> ו. 42 '43 ftft:</td>

<td></td><td> foes;;!»/ therein or jmc</td><td> ׳״ a part, rhe root .</td><td> V&lt; . * ^S \ V K '</td>

<td></td><td> Whils .suis fittings</td><td> are pref&gt;.rted in '</td><td> ftftyftftftftyft ft .ft t .׳ft .^:: י </td>

<td> ף ,-&lt;.&gt;</td><td> ;:.־&lt;'&lt;.;:.?7^;$ί.&gt;v^י.־,־::־.ני: */';.'ί</td><td> &gt;&gt;.:-pft&gt; . 1 v&amp;; . ׳?; ;&gt;$* y 0 v&lt;&lt;</td><td> ; k-ft ftftftft ;.&gt;&lt; ft: ;ft;.:;;</td>

<td> -'. &lt;v ;</td><td> ד : xntt’fronneef</td><td> .? source of :br.d '</td><td>^: low t&lt;&gt; ׳tb$ ί &gt;: ί-ftft</td>

^&lt;e׳ ends of the fluid eonauits. More 0pec1'i&lt;'allv, a oeg ft Λ ft '

50u10> of fluid flow ״st connected to the Ives tod ־׳! : ft Si. Ϊ:

flit ng generally indicated ar 40 to 01« ft “he fl.uf

Sura a negativ.' w׳c!' of fluid Hw ־י >ot >wd‘.

: 5; ce.ss-raixy rs. : resented ::.'οηη.:'^¹ . . ,..;!, &lt;.-?'.:..׳ ״ posiUve .\jjrcn ot ' luid ft.w v ״.!; ,.

:OfJ fitting «nd/cr tree e!.j of !he ♦4_חין . _K,_; .

״en !a>*y rvpresenrea hi broken ’ , ., »׳י,{. ;._f,.

xs not specifically ^aown. As; well u > . ftaiuoa in rΜ i 1^; י י ths» hloc4 *n .. <

^s״' ^־»a»«»«»» .M ««״.,«,,,״:״,ρ _t,

1^״! ’״^:‘“^r־'^s o״ ^־la p»«״,״.״» »״.״,, _{e)K S(},_W, ⁵ | ^Κ:,.⁵'^״' ^{ta £05־}> «*. «»w. «Mb «״-״«J״ _w ||M «a e» ״_{lbe lsean־ ϊ11(1 r}._S[W fl« ״_{e wraseMe(l} by a״,_sr,_{ow1> ss ז}S (Fig. 1).

j: . . ^With primarily _to _׳ן_;J « |j,־ma. U th« tub״»״ ״_{s H COB},_{prt8M a} pta rtUy « _t| ⁸j*¹“¹'’ iwl.Mlny » _tube »s_esKי, ״ .״ «־« M _ai.«_M!״׳ג_ ,״.,״״־> ״־ ־״_!_{v tuha} tb _2: ו.,_:e, T« _b'._s5i i'pl •'11111 11': <> .:.';..׳. .x .״.... . .

^ό> ' ' יזג > v 0י ^ν<.>.J.

⁵'1 יי ^.Ulv upl : -:..,&lt;־ ;_!?J ,_?;

״|| <.h«> _{f:״KS s8 L;be} -;_z, , '' '^,'י '' ;ΐρ. t;R _; \* i.

^u־ «?'&lt;’. MV5 ר '.^::׳ th_en Pi;

« Tin-iw׳ Mp&lt;x5 tA ₅ /.,..

: i: T^{: v} >». .,., :., ,.

. \j. :. v'׳.*.’.

κρρρ-.’.ν .;/;>־ ??,:?׳'«;&; bii> <ו ,״..>״ < .<; .!>״.

' k > Λ, p : ί>ρ. p .:; ppp <::pp<ip<’ ?4 ;':X..״ p.. v

11, i ν«ί.ΜΪ^,.,.

.־?' 1 \.. .׳:.גי;:;.-. ׳. .־. .-. .>.׳ >'־.. ^:.־< ,-;. ._vi<,. .

11!&lt;״ L &lt;i &lt; ’' ״'י'״״':״.' w׳ vps φρΡργ μ?ϊρ1*&lt;;״ |||«p« «.Jpapb _{as sh}«_e. _a plurality _{oi e}״_{e8 w w}«ρ th« «״ of _{t(le talj(}, _{־ ״;x m} , __r;)K .:4 Uhr־.״.^ ,_;h.״_{:e ρΟΓβ5 thfi inceu? of} ««1 ,,,,._!KJg a «״a »» th״««. _{eejrfBtfc 24 foraK&lt;! fey tי ־״־} ...

iiiw. .

1.:.^:

Illi1 !if .i»tercor.w;rl1'. -,1,

11«:«.. ' ' י '־ ע&lt;:. wit! 11.11 c-siuis gllii , ,. :. ,. i &lt;|oi f?usd ־Ίον which U ♦&lt;-. .״. ״״.&lt;.

¢111 ^<;׳. ^!.^:» -' ^ג.« lj n P <!>>: t;r.

|| ³'״^Irw' '^iU « eru.t _Ot * _ht׳.

rb- te. As; indj;a ted by dfrec־aedaiarrow sa'ihote Cir d0W; iUt-O ths? blood. v>'׳s> ;;>־ * <>v;:?.χ- ί ; <. t, _:-j ue of this s&w>d path of f.te.i<i f:::.->- being - _:. positive? $ cures of :fluid prater«: :>:;.< :.::or: uc;-Ui־c:?c -t:. Again by virtue of :;he fact. tWt ths-neoat ?. .: :: }.tivo .<5onrees of fluid pressure repressedtte by ir, -: ;:te-,:te.y:;?l y, -sra cortj.;r;׳.‘cs i*. n«&. :;>:':::: .- tte;::::

' ' Γ’, >« ; 1 ־> s ' iM ן ץ; x t'^- \ < . S>$ ־> ־ \<:)י ?; drawn from bhn bTood vessel. thntebh the uut®s:

on a «bn fin anus Masis .ητηΐι,ιηη , »y

״.>rvarsd back xn״O the blood vessel throoul; the :h<> 5< א׳

Ano that «. 5boditwnt of the psnsant irrhitt?.«:

; rhu oarar י י \ηώ ' - י - >c > '

a.;״:. ::::.^:.u.ף.;.י:׳: .:-t .sac id to ;;:;a;, λWit.;:

to Fxg's. a, 3- :? ar.O A. os oh s:-f the hob n-ortxss: :3 arfi picviced with .socket mans S7 Ab. Ths?;::? :tans are correspondingly dimrnlcbbd and conf igu?.;;0 .uwnaicns and -.a0nflgurati«m-g of ths? i&lt;si$::i-ny era;:orti of prof: re ding ex tens io n.s 6 2 arc. AA. Tormd ׳to r e«d of the tenor and outer tube ??tebetto S4 andactively. Accordingly, bv -'5,; י ״; י, -.; 11 &lt;־a!?01iracy of aSfanbly is tear red . *: th.;??: th:״ ;

t;at place tfs« protrusions £1׳ ;;a?:; / : :MA the:-b'rooerl'.

1'?

.p_:.p asaeis 37 Vd 3 <!>7 wcovtishis uh 71:0-5;:::-:iis7 so 0 s ί ;:si; f a;: 1 :1 sty the r 7:;:.; ? uh;. <״ !?. ha v s> : 7 .:; ::: ?: j; 77-7 ::::- tors::! v;: ; 7, 7׳- ׳ y ' ' vi 7 י׳'!!‘' '' ״<, e'r.itiy y< י > ';יq׳ ״> ,, : oitv ;;>?>: ::.ho KCiSkOt :!Oysos :5 7 77 ;״.-;y y,:::::, 5 :-.3'! Sy :!:όί.<χ^ ;: . ' ' ' 7 7 .

C»in or both of rhe h :jb pcrtW4-6'''ar;d'il<#h^bf'&$ <ף VJ. J e ioekct !roans 5T. and 59 are Γ!>ν,< ,ηχ._ηי _{) ז} of the two huh portions IS and 18. ?>C of th״. uc^t _i$!

'7י and >9 are «rmnged in βΙΙφ^, ־<!־'.;! p:_{y γ0Λλ}.־,, י<ה»1י!ץ: L.. orte «another wherein 3--x־ket ־.:!,' < ׳־ ,. ״> .< p, ::-7 :; >ν-:::; «<!::: the junction or point of in bar co nor tlon bntw^v;

. .,^, . ... .

is-7 <:.:0<ן :;!'tor tube 54 and the fluid oonduit H-in-«״M»?,« sh.iob׳ :r$> s .. .

'' ,״?!.>>״,.»<׳« the fluid '..wine tho»oh. :י ' *bad.

73-7: 7 77 ' | toe tarot :£luid ,f low pyth defined by the outer rubs 31.:::.-:-:0:.

^x ' 'at to! dv &lt; 22.

^7 $701 i,ariy rocket !«ans '5-9 :of ires the -:u::.::r ?.&lt;u:.

. '^זח of irtt*r׳ unectio:־ :?.>w * uvi '׳>M0U ‘ ' ' .!,'! ^s ' ׳Λ ' ' ,א <' _!χ ;

.3|!77ki :hrtr tub* 711 : W ^7:17 IT-7־ r fibO ihw ::;;.!.th _:: ״ r0st:n above, by virtue of ths גn--:000071!:::;.-?״:ont 05 forth ־!hove ifc is -.;-«!: that the fluid How ?>»:0*0:_: -?.::״:

.™IriXst *:asid 1 tow 070:1! ana the saonnd : 1.v.ld. flow 5:0::0. .:;>-::

׳ -:1 .׳.: ׳ ׳.: ׳ ^3*«ל^|ןג segr&lt;&lt;.vjtr;d and tn fact travel in ':ppovla״ d.vuo &lt;»n a .”our «nanus basH o-'0 the uגalysis Ndhw which f 7 '⁴ '»'w' v to the eathet«.' device' IS of r.he subject-invention 1W::r^:11. :

_s, _v . ,»_{: C}W , ^11:11: - _: ::-

Another »'nbodinan* ot t>n? \ מי or-!'.» >a ::

' hu<3 i *.׳I in Eiq, ;> and ׳'.c'ap' f ־ C '.X'!.-> t¹ ׳.!'

107&amp;1'1:

,u'?' . ׳ ^!. nd ica ted as ns ד>«# *ר!!.׳ rr m<. ;<.<.<.?< c o: . nr ::.17..'. 37' . . , _: ' . ^: .:, : ^s 7: 1^A «05 l0׳^{N *met. .־pay be, ir the endTOd.;.!> nt ״.,>n» ’.7« *'x*' :^:־v<3s:'^7״ 7 . י י י ^:׳ ׳ uf <ne \ub aR$»e<־»bly 12. The conn;־' ts>r .׳ .י.vm<n ,

::::::.::« : . : : : _: :

Ϊ ' t.ne to the Ηώ _ot ; סה patient, in whop. the catheter dsvl <_(tt>ans .f aciXitatsin comfor tab le t״e or ?'vice on the patient and also .®ov«r3ont or displacement v'ce . ^_r; onverwnt of the patios.

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the Heid co?< _מ;<->1 hehe :H ^».^־?'^t.' isן^ן'.^{x l}' - ' it' ni imnare sub''fcar

- ׳ - ;<> ;> x ;, < c oh x a . 11 <. ;v a a -. .־ x ;;׳.. ’ v .? .y;j a e^f Od by . pa1t’cc1_w fluid oonduj♦ ״' -» - 'at. pj.m} lerly_t tapsi'ed »«*.tion \d'.v*»'_y downstream nf the point of _Ux_t{>2 > ::abe with , .the fluid oonduit ,U«tn ?0 3!an comprising _{a pi3rt f} ״eg < ' we; , i-₍s _r<8t;_u;_s<x the ׳5 _4>)9 be llu'; t]_w .,_Λίיס1י f <'V' >₉ <>. ־. duxt ?. .»nd , he eater ϊ re S2 _s <$ the '™ ״»’׳ofc »,,,״ ¢.,, .' -.call, _{;ww ״}^c* ^u '^{v :}-OX Poo aoer'- י ״ ״te « ««״., _WUnM

,.,. , . ^iUi ufc ».he V ..:s ה?

' '^υ' ^x ' ''־ ^!,n κ_{5 ?? x}.,״ >״ _n^{Λ 24}. ״״Ort««. _{η tb} ..

&amp; : deep_{ס ;} ־«_{? of}_ΰί tluid ^strict.! f.j_{w is}

J >' (,,, x tr an vice itself to to ° ^s^' *׳'^per _ct _o

Ύ and/or nara

'. P -&lt; I v id p ?? 0:0 ^:0 S'/hih th '^;^s v to and till

'.־4

SO >s>0.

»;:?uii's 22

'.>'.< »M p_ol-_Uc.,_s ״_; ״_{ws f<jr}^f!״d ' ⁰⁰*t»» «0 Λ,«״!״« «.»>> tbes. _Sadl ״״vau_{MWW Khan iMtully} re. Once ;,he ?_ia: vessel. and .tfa»r.

⁵ud O OX ng &lt;

^tb< fe.iood w_?>hir. rhe 7.5.',, '.« i>,_t .,״. __ld _._; ־ .«I «it _fTO. ,,, _{,_{״> 3},_!<״! ״״ i .™«Juit.5,,,,. 12 ־־ , _f thro־־,), _tf!<> .,_״.,.,.,״_ν(> .,_13״ * i 0. , ז ־

י. .&lt; .י: ?.' *' '־' ־״®ally 0״ _thra;.^ _cnny._K1 .U :

•3 t λ.

&lt;re

Ιθθίϊ.:&lt;

Ill '*' י'־ trough and ?4 either device x

ΪΛΛ'ψΙί' J

W.U.1 .*״» Λ&lt;« * י״'״ ”׳־ ^b ** ...

. :, _{״ ¥}, , , ,, , x_־' >< ' '''

- s,:p hi Oh , ;J rg .:x ' f .;,.,. ..,., _Λ., _...s' :'.' '' '' &Jnee eeruin changes «theut depart 5 ng f_rom 'nded «'»S> x ij ' _: >_{r1 cr} may H- »«arte _i th!

tlie .¥

At ״Ofc al»

Shown i'- the n:-₅^_nv.., ,, . t^nyuig . ' >>w?. ogs ₅,?,.־s! ' .illuotra; :v*> _e; h .'. > ,_r , , ¹ Ute; p,. #¢3 _{(3 ;}j ״i7are !ηtondad to amt־ all of »of the invention herein de teopa of the invention which said to tail therebetw׳en*

Now that the invention —1. A catheter device for the catherization of predetermined, blood vessels required during hemodialysis, said catheter device comprising: a hub means including a first and second fluid conduit disposed in spaced, s^earated relation to one another; tube means connected to said hub means and including an inner tube element and an outer tube element having a pore means formed therein disposed in coaxial concentrie relation and interconnected to one another, each of . said tube elements connected in fluid communicating relation to one of said two fluid conduits, the lower portion of said inner tube element having a linear dimension greater . than the linear dimension of .said outer tube element such past said outer tube pair of’socket means means formed on each element extends said inner that element, said hub means comprising a formed in said hub.means, a.mounting said tube means corresponding to one of said pair of socket means and each said tube means comprising at least in part a substantially corresponding configuration as said corresponding socket means, each said mounting means disposed in mounted engagement with said corresponding socket means on the interior of said hub means; a first path of fluid flow defined by the interconnected outer tube element, to said first fluid conduit; a second fluid flow path defined by the interconnected inner tube element to said second fluid conduit, said first and second, fluid flow paths disposed in segregated relation to one another; said first and second fluid flow paths interconnected to a continuous negative and positive source of fluid pressure respectively, whereby a continuous flow of blood simultaneously travels from and to the predetermined blood vessel through said first and second fluid.flow path respectively, upon activation of the negative and positive source of fluid flow respectively.__