Note: Descriptions are shown in the official language in which they were submitted.
- - 1328389
ASPIRATE RECEIVER
Th- prosent lnvention relato8 to an aspirate
receiver and more specifically to means for early-stage
abortion and ~or biopsy of the endometrium.
Tho present lnv~ntion i8 in3trumental in giving lnforma--
tion on the amount and qu~lity of the a~pirat~ obtained.
Qne state-of-the-art a~pirate recelver i~ her~tofore
known tUS, A, 3,334,538) to comprise a housing oblong length_
~i8~ the receiver lon~itudlnal a~ie and having a central cham-
ber and a channel th~ein3ide. A container for aspirate col-
lection i8 hold to the housing base, com~-n~cating ~ith the
contral chamb~r of tho hou~lng aud arran~ed ~quare Rith the
longitudinal ~xi~ of the housing. Th~ channel runs throughout
the housing length 80 a8 to communicate the centrsil chamber
of the hou~ing with ita opposite end~.
~ through hole is provided in the housing ~all, adapt-
ed to ad~u~t the pre~sure therein and to communlcate the
housing central chamber ~ith the atmosphere. One of the chan- -
nel ends communicates with a source of vacuum, while the
othor end, with the aspiration tip.
The heretofore-known a~pirate receiver is chsracterized
by the fact that having connected it to a source of vacuum
and to the aspiration tip introduced lnto th~ uterine cavity,
the ~urgeon turn~ tho a~pirator round it~ longltudlnal a~i8
spart from imparting reciprocation motion thereto, As a re-
sult, the container tip3 turn~ over, the a~pirste is poured
out to get to the vscuum system, which impedes sub~equent
quantitative and qualitati~e analysis o~ the aapirate thu~
C oollected, .
- 2 - 1 3 2 83 89
The known a9pirate rec~iver i~ al~o featured by the fsct
that the housing hs~ a shape other than 8 cylindrical one
which mskes its rotation inconvenient 90 that rotation of t~e
housing i8 nonuniform, whereby some frsgments of the fertiliz-
,ed egg remsin in the uterine cavity.
All the foregolng result~ in a prolonged time to be
spent for surgery.
One more a~pirate receiver (DE, B, 1,947,123) i9 known
in the present ~tat~ of the art, which i8 es~entially a bo~l
with a cap. A through opening i9 provided in the bo~l cap
communicating .qith the bowl interior ~d the distal end of
the aspiration tip through a connector element. ~he a~is oi
the through opening is offset with,re~pect to the bowl axis.
The bowl i8 made of a polymer msterisl an~ s¢cnmmodstes a cy-
linder-shaped me~hy element th~t encompQsses a tube provided
wlth through radial holes. ~he tube interior communlcates
with a ~ource of vacuum. ,,
Aspirate admitted to the receiver 108e~ it8 liquid
portion, which mske~ it8 way through the cylindrical meshy
elément into the vscuum ay~tem.
The k~own aspirste receiver i8 B180 characterized by the
i'act thst lo~ of the liquid aspirste portlon impede~ qusnti-
tstive ~nsly~l~ of the col~ected a~pirate.
The known a~pirate recei~er suf4er~ from the disad~an-
tage that an eccentric poeit$on of the a~piration tip i~ail~
to provide unirorm rotation of the housing along ~ith the tip,
~hlch result~ in retention of some fraements of the fertlliz-
ed egg in the uterlne oa~ity. All thi~ lesds to a prolonged
oper~tlng time.
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The known device is also disadvantageous in that
the cylindrical meshy element is difficult to be
cleaned of the solid aspirate particles stuck thereto.
Besides, when being removed from the cylindrical
element such particles are damaged, which interferes
with their subsequent histological examination.
It is an object of the invention to provide an
aspirate receiver whose application makes it possible
to contain the entire aspirate obtained in the course
of vacuum aspiration of the uterine contents and to
make an individual quantitative and qualitative
analysis of the aspirate collected.
It is another object of the invention to cut down
the time spent for postoperative bowl treatment in
order to ensure uninterrupted operation of the aspirate
receiver.
The foregoing object is accomplished by an aspirate
receiver comprising:
a) an aspirate collecting bowl provided with a cap
and defining a longitudinal axis;
the bowl comprisinq a bottom and a wall having an
inner and an outer surface and defining an interior;
said interior of said bowl communicating with a
source of vacuum and receiving an aspirate;
b) a through hole in said cap of said bowl;
the cap preventing arbitrary decantation and
interacting with the inner surface of said bowl;
c) a hollow housing provided with a cover and
defining an interior, accommodatinq concentrically said
bowl with said cap;
said housing and said cover comprising a wall
having an inner and an outer surface to isolate said
interior from the environment;
d) a through hole in said housing in communication
with said vacuum source;
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e) a sleeve of said housing cover arranged on said
bowl coaxially with the longitudinal axis of said cap
and having a distal end and a proximal end;
said distal end adapted for connection of an
aspiration tip, and said proximal end facing the
housing inwardly and coaxially with said through hole
in said cap;
f) an annular space defined between the inner wall
surface of said housing and cover and the outer wall
surface of said bowl, said space concentric with said
through hole in said cap, with said space communicating
with said source of vacuum.
More specifically the aspirate receiver comprises,
a bowl provided with a cap, the interior of said bowl
communicating with a source of vacuum and being .
connected, via a through hole in the bowl cap, to an
aspiration tip, according to the invention, the bowl
with the cap is accommodated in a housing provided with
a cover and arranged concentrically with the housing so
that an annular gap is established between the housing
inner wall surface and the bowl outer wall surface,
said gap communicating with a source of vacuum, while
the through hole in the bowl cap is concentric with the
annular gap, and the housing cover is provided with a
sleeve whose one end is adapted for connection to the
proximal end of the aspiration tip, while the other
sleeve end, facing the housing inwards, is arranged
coaxially with the hole in the bowl cap and is -
enveloped by said bowl. ~
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_ 4 _ 1328389
Such a construction arrangement of the aspirate receiver
makes it possible to collect the sspirate resulting from tho
surgery performed, completely and ~ithout 1089. This in turn
ensbles one to effect its quantitsti~e and qualitative snaly-
sis w$thout delay.
Such sn embodiment of the aspi~a~o receiver pre~Qnts the
aepirste from getting into the co~mecting sleme~t~ and the va-
cuum ~ystem elements, whi¢h is of great importance in AIDS
preYention, since it svolds any propagation of the infection
contained in blood stains and spla~he~ and coagulated blood
clots depo3ited upon the connecting elements whi¢h are hard-
-of-~¢oe~& for postoperstive treatment.
In addition, the bowl of the herein-proposed sspirstor
re¢eiver i~ e~y-to-withdrsw from the housing, it is readily
and rapidly di~infected, after which the bowl is resdy to use
aBain without any danger of infection propagation. This
¢ut~ down the postoperati~e bowl treatment time, thus en~ur-
ing uninterrupted operation of the aspirate receiver.
It i~ also e~pedient that the clear passage area of the
sleeYe end,adapted to communi¢ate with the pro~im~l end of
the aspiration tip,be in ex¢ess of the clear passage area of
the sl~eve e~d facing the housing interior.
Su¢h a ¢onstru¢tion arrangement of the sleeve favours
proper holding o~ the aspiration tip and prevent~ the aspirate
irom ~plashing oYor the bowl inner walls, ~hich enables one
to collect tho aspirate result~nt rrom tho ~urgery without
1088.
In ~h~t follows tho inventio~ is illustrated in a speoi-
, . fic o~omplary embodiment thereof with referenoe to the a¢¢om-
panying dr~wings, wherein:
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Fig. 1 is a schematic longitudinal sectionsl view of an
aspirate receiver, according to the invention;
Fig. 2 i9 an exploded longitudinal sectionRl view of sn
sspirate receiver, according to the invention; and
Figo 3 i8 a longitudi.r!~,l section~l-~iew o~ an ~mbodiment
of a part oi a bowl with a cap, showing thc cone-shapcd cap
wall fscing the bowl int0rior, sccording to the invention.
~ he a~plrate receiver incorporates s bo~l 1 (Fig. 1) pro-
vided with a cap 2. An int~rior 3 of the bowl 1 communicat~c
with a qource of vscuum (omittcd in thc drawing), A through
hole 4 (Flg. 2) i8 m~dc in the cap 2, through ~hich the inte-
rior 3 (~ig~ 1.) of the bo~l 1 communicates ~ith an sspiration
tip 5. Thc CBp 2 of the bowl 1 i~ sh~ped as cone frustum ~nd
muy face its cone-shaped portion outwards (Fig. 2) or inwards
the interior 3 of the bowl 1 (Fig. 3)~ The bowl 1 may be made ~ -
of a transparent polymer mat~riPl which enables the surgeon
to monitor its filling with the aspirate.
The bowl 1 (Fig. 1) with thc cap 2 i8 accommodated in a
housing 6 provided with a cover 7 concentrically ~ith the
bowl l -80 th~t sn snnular gap 10 i9 established between
an ir-r,er wall surface 8 of the housing 6 and an outer wall surface
9 of the bowl 1, said gap communicating with a source of vacuum
(omitted in the drawing). The through hole 4 (Fig. 2) in the
cap 2 of the bowl 1 is concentrical with the annular gap 10.
Support elements 11 (Fig. 2~ are provided on the out~ide
~urface of the bottom of the bowl 1. With the bowl 1 put in ~-
the housing 6 ~aid element~ 11 define channel~ which favour
b~ttar air pa~age.
C The co~er 7 of the hou~ing 6 i~ proYided with ~ sleeve
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- 6 -
12 havlng an outer ~d 13 and an l~n~r end 14. Th cl-ar pa~s-
age area of tho inner end 14 of the sleeve 12 i~ smaller than
that of th- outer end 13, which ie adaptod for holding thc ~8-
piration tip 5 i~ place. A rubber cap 15 i9 fitted onto the
outer end t3 of the ~leeve 12, said c~p 15 having ~ hol- 16
whoso diametor i3 smaller than th- outeido di~metor Or th~ a~_
piration tlp 5. A reduced clear paaaage ar a oi th lnner ~nd
14 Or the sl-eve 12 provid~s for rellable fisinB of th-
different-diameter ~spirat~on tipa
The innar ~nd 14 oi the 810-Ve 12 18 coa~l~l with the
hol- 4 in the c~p 2 of the bowl 1 and is ~r~e to pa99 t,hrough
the hole 4 into the interior 3 of the bowl 1
The aspirate receiver of the present invention functions
a~ follows.
~ he bowl 1 wlth the cap 2 removed i~ ~et into tho houslns
6 ¢oncontrically th row$th and with its bottom fscing the how - -
lng end connacted to B gourco 0~ vacuum tomitted in the drsw-
i~83. ~hen the bowl 1 and the hou~ing 6 are ¢losed with their
reepective cap 2 snd cover 7. Ae a result, the inner end 14
of tho ~leeve t 2 enters through the hole 4 in the cap 2 into
the interior 3 Or the bowl 1. For bettor holding Or the a~pi-
ration tip 5 in po~ltion and ior hermetlc ~eallng o~ the re-
celver, the rubb-r oap t5 i~ ritted onto the outer end 13 oi
tho el-eve 12, whereupon the asplratlon tip 5 to be introduced
i~to tho uterine cavity i~ pa~eed throu~h the holo t6 ln th
rubb~r cap 15 a~d insert-d rlght home into th outer end t3
of th d--ve 12.
~ hen th ~urgeon t~keo hold o~ the housing 6 ~lth hie
ha~d, aonn ct~ th r ceiv~r to the ~ourc- Or vaouum ~d
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1328389
7 -- .
lmpsrte rec~procating, rocklng and rotstion~l (round it~ lon-
gltudinsl a~i9) motions to the hou~ing 6. When the aspiration
tip 5 moves backwards so that a ~m~ll portion of the ~lot
thereof appesr3 from the uterine o~tium, the preissure balance
occu~ with the result that the a~pir~te i9 e~pelled into the
bo~l 1. For fear lest the aspirate ispl~hes get onto the
inner wall surfaces 8 of the housing 6,the cross-sectional area
of the inner end 14 of the sleeve 12 is reduced a~ compared
with the outer end 13.
Upon terminating the ~urgery one should remove the aspi-
ration tip 5 from the outer end 13 of the sleeve 12, open the -
cover 7 of the housing 6, wit~draw the bowl 1 with the cap 2,
replace the bowl with a fre~h one, ~nd may start a ne~t 9~ml- -
-lsr procedure.
~ hen the aspirate contained in the ju~t-withdrawn bowl
i9 ~ubJe¢ted to the quantitative and ~ualitative analy~is,
the boNl ii3 washed, dipped in B disinfectant sDlution, where- ~.
upon the bowl i8 ready to u~e in further surgical procedure~
ThUB, it iB due to the ~forede~cribed embod~ment of the
aspirate receiver that any isi~pirate lo~ from the bowl i9 . -
e~¢lud~d, a oo~prehen9ive indiYidual quantitative and qua~i-
tative analyai~ of the a~spirate csn be performed rapidly, ~nd
a trouble-free.uninterrupted operation of the receiver can ~-~
be ensured due to curtailed time for the bo~l postoperati~e
treatment. ~ :
~3~
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- 7a -
It should become obvious to the one skilled in the
art that the aforementioned aspirate receiver could
also be used for biopsies other than that of the
endometrium. Its use is thus not restricted to
gynecology.
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