Патент USA US2406207код для вставки
Aug. 20, 1946. J_ p_ DESMET _ ' ‘2,406,207 ‘ BLOOD TREATING DEVICE Filed Oct. 4, 1944 ‘ 2 Sheets-Sheet r ' INVENTOR ' _' John PDesme? ‘ ATTORNEYS Aug. 20, 1946; Y ‘ J_ P, DESMET ' BLOOD TREATING DEVICE _ Filed Oct. 4, '1944 Fig.2 \' @W a // , ‘ 2,406,207 I ' 2 Sheets-Sheet? rug-.3 - //, / / / '/ '17 / ‘ 46 INYENTOR John PDesme‘zL mama; ATTORNEYS ‘ 2,406,207 3 T? ‘ ‘iii; >4, genating chamber, oxygen is fed from tank 38 "The outlet passage 2! of the pump is con? through conduit 3"! and tube 33 into the recep nected with a relatively small diameter glass tube tacle ,2; the screen 36 assuring against the in 28 which leads through a packing gland 2-9 on troduction of any foreign matter. This oxygen head 4 into the receptacle 2 as an inlet; such tube 28 extending downwardly in the receptacle 5’ bubbles upwardly through the blood’ in the re ceptacle 2, effectively oxygenatingsaid blood and ' to a point adjacent but short of the bottom of revitalizing the same. ~ , the latter'an'd is there formed with an upturned‘ From the receptacle 2 the oxygenated blood, discharge gooseneck 33. Another relatively‘ which tends to be in a somewhat foamy condi small diameter glass tube 3| extends into the receptacle 12irom'exterio‘rly thereof through a vl0 tion, ?ows upwardly through conduit £6 and is ,discharged into the receptacle 3 through the in_ packing gland 32; said tube 3i being-of substan \ > 4!. The position of vertical-adjustment tial length and vertically adjustable through the] , _elethtube ‘ ofithe outlet 31 will control the amount of blood held inlthe receptacle 2,‘ and consequently the the receptacle 2,, and when in/its lowermostpo; 7'" H H sition of adjustment terminates at itsklowerend'? l5 amount of blood Withdrawn at any one time from 7, adjacent but short of the ‘bottom o-ifsaid recepei lithelpatientis' circulatory system. I gland 32. @The tube 3! forms theroutlet from » . , } _ As the ‘blood'discharges from inlet'tube 42, ‘ " into"the‘lreceptacle ‘3 it tends to settle or de-v ioamgandiin‘ addition the check valve M is set . ' tacle2.~. A third glass tube 33 leads into . the'rec 2 through a packing gland 34, and said tube 33 ‘extends downwardly in receptacle 2 through a ‘20 to regulatethekpressure at which it is desired to returnlthe oxygenated blood to the patient“ As packing; gland 34 ‘to, adjacent thergooseneckpiilil ‘ the blood defoams "in the receptacles iiti?‘ows'f andisthere ?tted witharubbernippleor sleeve; ~ ‘ into thefgoosen'ec'k “and out‘ through theitubc f 1% Whichseats against a ?lter screen 36 Vfric-Q V 53 to the ?exibleif conduit ' is which feeds the ;. 25Vv>needle 46 whiclil‘h'as previously‘beenintroduced ' ‘1 bottom thereof butf-belowthe, lower end portions vein of the'patient. u of tubes 28randr3l. Above the packing gland ' into'a Operation of the device is continuous, and tliéf 35 the tube 32is connected ,witha ?exible con-V blood oxygenating process is relatively rapid; the " duit 3i which,leads____to an oxygen tank or the I amount of blood withdrawn, its rate of ?ow,'e'tc.’, like, indicated diagrammatically at 38; there be tionally engaged , in’ receptacle 2 adjacent the I ing a control valve 39 the conduit 3? ate, con-y 30 being e?ectively'regulated throughthe ‘medium of adjustable, elements of the device, as'previq. venient point. Above theipackinig guild 32 the outlet tube s13 _ ously With described. my improved " system ' -of blood treatment, ' ’. 1T : is connectedto a ?exible conduit 40 which is of the blood is purified and aeratedIandEhe blood suf?'cient length to permit of‘vertical adjustment 35 cells are materially revived by the introduction; of: said ‘.tube 3| ;_the ?exibleconduit 60 connect v‘of oxygen or othersimilar gas into ‘the blood. ing ateitsother end with the upper , end of a The method isiespecially bene?cial 'inIth‘e treat-1 “ ment of blood diseases and ior'einergency-guse, in shock and'asphyxiation cases; theibloodjact relatively small diameter glassinlet tube 4| which leads through a packingglandril?v into the upper end portion of the receptacle 3; A still further, relativelysmall-diameter, glass tube~;43_ extends 40 ‘mg as a carrier of oxygen, and which oxygen prof into the receptacle 3, 'toa pointadj'acent but, "duces the desired bene?cial results. 1 Y~ .Since the 'oxygeniirst discharges throughithe ‘I '- short otthe. lower end thereof, where said tube . screen 3'6,’ and then comes 'from‘the ‘under side; '43. is formed with an upwardly opening goosee thereof back through the scréenjin 'di?u's‘e'd‘rela ‘ "necked. The tube .ll3xis the ?nm outlet from,’ ; ‘ ‘the device and is connected with a ?exible con-71, 45 __.tion,' itbecomes thoroughly mixed with the blood; ' ' A Whenthe oxygenization operation isconcluded , ' duit 45,7051 the outer end of which is ?tteda _ the valves in the pump line'are closed. The'pres- , transfusion type needle 4.6. .7 V -- Y - sure of the oxygen thenfcontinues to expell all ,An- adjustablecheck valve 4? is mounted on the head Brand is in communication‘with thelinteriorb ‘ the remaining blood 'from' the" apparatus'and into ‘ 5Q>ithe circulatory system of theipatientlz -of ‘the’ receptacle 3, such check valve opening}; i ' ' ' method, ‘and ' apparatus canals 1 ‘beige-i away from said receptacle. and including an ad-; tively used in the liqui?cationk and oxygenizationj; ' ' 'justment screw‘ 43 whereby‘ the pressure in said .~ 7 receptacle may be regulated as desired. In use oi'ithe above described device, the needle : of dryrblood for purposes of transfusion iirillcases OI Shock and them. if Plasma islneileveilablaif ‘ duit 26 to the pump. IE1 and thence into the inlet .ily Seen“ that leave produceaeuchea method 1 21 is introduced into the artery of the patient 55,,or vin cases/of anemia when de?ciency A‘JoiQred; and :the pump I9 is ‘started.’ This withdraws“ "blood corpuscles is involved. From theforegoing ed scriptien, it villflbélréalt blood fromjsuch artery through the ?exible can: I l tube28. In order to prevent coagulationofthe blood the needle "21 i'sof the type which includes and device as substantially iul?lls the objects of; 60 ~the inventian as set I'orth‘herein. " ‘ ' While this specification ses?forthindetailgthe " a lateral ?tting 49 adapted to be connected with present andrpreiferred construction of, themethod ii a feed ‘conduit 58 whoseouter endis disposed ' and device, still in practice suchtdevations ‘from in'a receptacle 5| ?lled with'a saline solution, such detail maybe resorted torasvdo not?form I; ' It‘will thus be evident that as suction, occurs in '65 ,a departure-from the spirit of;theiinventionfiasj the flexible conduit 26 a certain amount of the ' _ saline solution will be drawn through conduit 50 I de?ned by the appended claims, 1 > into? the bloody flowing ~in said conduit.26. A ,7 claim _Having as new thusand described useful and my desire invention, to secureby; clamp 52 on conduit 26 is employed to shuto??: 1 ‘ the‘?ow As thetherein blood iswhen pumpedby necessary. the pump ‘ l8 into ' ‘ the. J 70 havingan intake and an outlet; a '??Xiblecondui cqnnectedat one .endto thepump intake and hay maze-transfusion, needle .011 the other‘ end; a re inlet tube 28 such blood discharges‘ from the. gooseneck tllinto-the interior of saidir'eceptacle; , such: interior being the; blood receiving, andQXy" ‘ genating chamber, as previously stated. ~ 1 :: VLetters .1, ,Ablgod Patent treating is: _ , device , r‘ i comprising. V , v apum . ceptaclefgr ' gyani'encluosed chambeha cond As the blood ?ows into the receivingrand, ‘939175175 Jiiie PEPlR-Qlliliit ,:;; ‘ 2,406,207 5 means to introduce a gas into the chamber, an on its outer end, and means connecting said ceptacle, and a transfusion needle on the end of said other ?exible conduit; there being an ad justable pressure regulating valve in communica chamber and other conduit in communication; tion with said other receptacle. said last named means including another re ceptacle forming an enclosed blood-defoaming 6. A blood treating device comprising a pair of vertically elongated receptacles, three rigid tubes chamber, and a pressure regulating valve in com projecting into one of the receptacles from above, other ?exible conduit having a transfusion needle . munication with said other receptacle. a pump having an intake and an outlet, a ?exible 2. A device as in claim 1 in which both of said conduit connected at one end to the pump intake receptacles are of glass to permit visual deter 10 and having . a. transfusion needle at the other mination of the quantity of blood therein. end, means connecting one of said tubes in con-. 3. A blood treating device'comprising a pair of nection with the pump outlet,'a source of gas vertically elongated receptacles, three rigid tubes under pressure, means connecting the second of projecting into one of the receptacles from above, said tubes in valved communication with said a pump having an intake and an outlet, a flexible 15 source, two rigid tubes projecting into the other conduit connected at one end to the pump intake receptacle from above, means connecting the third and having a transfusion needle at the other end, means connecting one of said tubes in connection with the pump outlet, a source of gas under pres sure, means connecting the second of said tubes in valved communication with said source, two rigid tubes projecting into the other receptacle from above, means connecting the third tubev of said one receptacle in communication with one tube of said other receptacle, another ?exible tube of said one receptacle in communication with one tube of said other. receptacle, another ?exible conduit connected at one end in communi cation With the second tube and said other recep tacle, and a transfusion needle on the end of said other ?exible conduit; said ?rst and second tubes of said one receptacle terminating adjacent the lower end of the latter, and said third tube being vertically adjustable. conduit connected at one end in communication 7. A device as in claim 3 including a base, said with the second tube and said other receptacle, vertically elongated receptacles upstanding from and a transfusion needle on the end of said other the base and being initially open at the open end, a removable head closing the upper end of each flexible conduit. ' 4. A device as in claim 3 in which ‘said one 30 receptacle, said heads being connected in rigid receptacle includes a ?lter therein adjacent its lower end; said second tube of said one receptacle extending downward therein to adjacent the ?lter and having a resilient sleeve thereon projecting relation by a cross member, a post upstanding from the base between the receptacles, and secur ing means between said post and cross member urging the latter in a downward direction. . into contact with the ?lter. 8. A blood treating device comprising a pump 35 5. A blood treating device comprising a pair of having an intake and an outlet, a conduit con vertically elongated receptacles, three rigid tubes projecting into one of the receptacles from above, nected at one end to the pump intake, a trans fusion needle at the other end of such conduit, a a pump having an intake and an outlet, a ?exible receptacle forming an enclosed chamber, a ?lter ' conduit connected at one end to the pump intake 40 extending across the receptacle at a spaced dis and having a transfusion needle at the other end, tance from the lower end thereof, a conduit lead means connecting one of said tubes in connec ing from the pump outlet into the receptacle, a tion with the pump outlet, a source of gas under source of gas under pressure, a conduit leading pressure, means connecting the second of said from such source into the receptacle and ter tubes in valved communication with said source, "- minating immediately adjacent the ?lter where two rigid tubes projecting into the other recep tacle from above, means connecting the third tube of said one receptacle in communication with one tube of said other receptacle, another ?exible conduit connected at one end in communi cation with the second tube and said other re by to discharge through the ?lter, a conduit lead ing from the receptacle, and a second'transfusion needle in communication with said last named conduit. JOHN P. DESMET.