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Патент USA US2406207

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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 \'
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‘ 2,406,207
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2 Sheets-Sheet?
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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 l5 amount of blood Withdrawn at any one time from 7,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.
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