CA2203035C - Deep-freezing container - Google Patents
Deep-freezing container Download PDFInfo
- Publication number
- CA2203035C CA2203035C CA002203035A CA2203035A CA2203035C CA 2203035 C CA2203035 C CA 2203035C CA 002203035 A CA002203035 A CA 002203035A CA 2203035 A CA2203035 A CA 2203035A CA 2203035 C CA2203035 C CA 2203035C
- Authority
- CA
- Canada
- Prior art keywords
- container
- plates
- container according
- frame
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
- A01N1/02—Preservation of living parts
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
- A01N1/02—Preservation of living parts
- A01N1/0236—Mechanical aspects
- A01N1/0263—Non-refrigerated containers specially adapted for transporting or storing living parts whilst preserving, e.g. cool boxes, blood bags or "straws" for cryopreservation
- A01N1/0268—Carriers for immersion in cryogenic fluid, both for slow-freezing and vitrification, e.g. open or closed "straws" for embryos, oocytes or semen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/02—Blood transfusion apparatus
- A61M1/0272—Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging
- A61M1/0277—Frames constraining or supporting bags, e.g. during freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/005—Charging, supporting, and discharging the articles to be cooled using containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
- F25D2331/80—Type of cooled receptacles
- F25D2331/801—Bags
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/28—Quick cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S62/00—Refrigeration
- Y10S62/902—Apparatus
- Y10S62/903—Heat exchange structure
Abstract
A container that may be closed all around is useful for deep-freezing suspensions of living cellular substances kept in elastic bags. The containe r has two plane-parallel thin-walled metallic plates (14, 16) secured in swivellingly interconnected frame halves (20, 22). When the frame halves (20, 22) are superimposed, the plates (14, 16) secured therein are arranged with parallel faces at a slight defined distance from each other and form an intermediate cavity (12) in which the bag is placed. When the container is closed, the plates (14, 16) press the bag arranged inside (12) the container and flatten it until it has a small defined thickness. A microporous layer (30) that considerably increases heat transfer to the coolant that surrounds the container is secured to the outer side of plates (14, 16) by an adhesive layer. Furthermore, since the homogeneously flattened bag has a high surface/volume ratio and is pressed until it has no folds or bulges, the cellular substance may be quickly and controllably cooled.
Description
r DEEE-~'R,EEZINtx t:',p~3'f~a.~NE~.
Aascr~,gt.~.r~z~.
'~'h~ px~~ent xrt~rent~.ran rc~.a~.~s t~~ a container which is sW _tcd fr~r deep free~~_n~ sL~sprnsi~ans ~W liva_ng ee3_7. material in elastic bags.
beap frea~~.ng makas ,it passib~Le to ma3.ntain :L,iv~.ng b3.aZoa~.c:a~.
t'rel.~.~ fox' pra~.-~tical.ly unlitni.ted tinie. Thug, fur examp~.e, Le~are ~,nterventions ' which cause great blood ~' ~.oss an.~. which oan h~
scheduled elcctivcly, ~~lc~od ~.9 t;ah~n from t.h~ pa~.ierlt, prac~asec~, and subsequently frozen and stared. zt is ac~nsequently pc~saible to build up a ~uffic~.enG deposit vt the patientr s own k~lQOd., sQ than the pat~,ent can b~: prrav~.d~.d wii~xt k~~.s cwri ~.7a.i;'c~d. d~.lx~,T~~
k:,hP r~per,~.Liozz and af:tcrwards. An intectivn s~f the pal.~.ezW wa.th v~.~:tzs~s aau~a.ng .'~xh 1~,_,~~~ ~,'a'~. HI vT, ~.k:~s.3~'~.~.';A,u~"Y v::c:.ikAtd:l.'A7l~i~~
:i.ii ,i ~1~;~~.~lt C7tpkit~,~' 'ta.LG0~1 c~.llct not detectable swing to the "diar~noNta.c ~u3.ndow, ~, ~. , t.t~ereby reliably pre'trPnt~d. M~reovex, the deep free?inch, c~eneral7_y referred ~.c~ a~ cr~lopreservatic~n, makes possible the greParation cf "q~_ia.~°ar~ti.n,~ prega~at~ians" from fc~rcigr~ rionox k~:Ls~od, the bricic~in ~ ~~
t~mpca~:ary bott~.e-necks, az~d tile atr~cl~ing cif _rare l~~,raQr~ ~rougs.
~l'~ua] ly, l.h~ uvhc~l~ Y~ar~c.i~3. pres~r'~~S t~thi~h are ta3~en arc.
separated by centrifugation into.erythrocytes and blood plasma a.nd axe then transferred to bags not affected by low temperatures.
These are subsequently deposited in metal containers, with which they axe dipped into liquid nitrogen far cooling. In order that the living cells are not damaged or destroyed during freezing, a.
controlled and rapid cooling, with a high rate of cooling is'.
necessary with erythrocytes. The usual metal containers nevertheless have the disadvantage that they enable only a limited heat transfer to the cooling medium so that, with unavoidable geometric inhomogeneities of the bag contained in the container, uncontrolled cooling can occur at least in these partial areas.
Against' this background, it is the object of the present invention to make available a container for deep freezing of suspensions of living cell materials found in elastic bags, with which a rapid and controlled cooling of the cell. material is possible.
According to the present invention, there is provided a container closable on all sides, which is suited for deep freezing suspensions of living cell material located in elastic bags, characterized by a microporous layer fastened on the outside of the container by means of an adhesive layer.
The microporous 7:ayer on the outside of the container raises the heat transfer to the cooling medium and thereby greatly increases the rate of cooling, so that a rapid and controlled cooling of the cell material is possible, and the survival rate of the cell. material deep fraier~ wxt; h the ~prit<~~~.nrr ~f the: inuent~.nn ., is thereby clearly inareaaed.
In accordance with a preferx_'ed furLtzex; emkaodiment of_ the invention, t.:he mi~r~p~x~u~~ layex- ~ampx~.~ser~ Qf textile ms.teii.aZs.
These can, far examp~.e, be cQnstxucted a~ a ~abrio tape of acctatA
,.
~'ay~z1 wa..th a temperature-stable aarylatc adhesive, 9o that the textile material can be simply and reliably fiasteneclr~n the outside of the ~:an.tainer and withstands repeated rapid coelin~ and relmas;~.nc~ , A uarti.au~.ax7.y adva.nGageoua embc~di~nenL oaf tine it~.ventrxc.~n provides that t;he aontaa,nel has tiwv than-waX~,ed met~al.~.~,c plate;
arranged, plane pax~a~.~.e~., wl».ok~ haxm the container walls, and, l~aa a frame aortaxst.~.ng ef two halves, whereby apprr~priately the plates as well as the frame oomprise mat;eria~. nit atieeted lay lc~w tem~aeratuze. ,F~duantage,ously, one ~J_aLe :i_~ re:~~~e~,:t::i.ve7.y fa;~trermd xn.
c~n~: frame: half, the trwo frame halves are pivQtab3y faatiened tips each ~rther by at 7.eGZSt one joint, and Lhe ~.~~.al~e:~ l:~x~texsec:~ :~xi l:h~
~:rdme ~iaives c:an Le fixed in the plane paralJ.e~. posa.ta.on by means of a ~~.a~~.x~g device . pdvanta~e~usly, the plates fixed ~n the plane.
paxa~,~.el ~~ositinn have at. i=he ~;am~ time a defined distance from each other, so that tile bag glared in the c~ntai.nc~r_ is ~ar.PS,~ec~ a.n.to a p:l.at:P~shages~ .fc~r_-tn ~rxtah tY~e: ree~tzixed layer thi.ukness uZ~~n e~.asi.ng the container. The container thereby presses the elastic bag into a basically homogenous plate shape, so that on the one hand, a large surface/volume ratio is attained, and on the other hand, geometric inhomogeneities such as folds or bulges are avoided.
further improved heat transmission is thereby attained, anal an uncontrolled cooling due to inhomogeneities in shape is relia.bl;y prevented. Furthermore, the thin homogenous plate shape of the bag enables a space-saving storage and a rapid repeating.
Owing to this construction of the container in accordance with the invention, a simple and rapid handling is furthermore made possible, since the container for inserting and removing the elastic bag with the suspension can be completely opened up.
In a further embodiment, a seal can be arranged in a frame hal:E, which is advantageously constructed as a soft material seal anc~ is stable at low temperatures, so that the interior of the container can be sealed fluid tight. This seal can be made of PTFE or another suitable matexial.
Since the elastic bags which receive the suspension usually have connection ports and pilot tubes, one or more recesses are advantageously arranged on at least one of the plates and are: so constructed as to be able to accommodate connection ports or pilot tubes. In this way, these do not impede closing the container, and the defined plane parallel. distance between the two plates is guaranteed, even when using an elastic bag with connection ports.
These recesses are advantageously closeable with a fluid-tight closure element, so that the cooling medium cannot get into the interior of the container.
A preferable embodiment provides taht the plates have a surface roughness of < 1 ~.m on their side oriented toward the anterior of the container, so that thermal contact between bag and plates is ensured during the entire cooling-process.
The invention is discussed below in greater detail on t:he basis of the figures, wherein:
Figure l shows a plan view of the container, Figure 2 shows a side view of the container in the direct:i.on:
of the arrow X in Figure l; and Figure 3 shows a section through the container along the lane;
A-A in Figure 1.
A plan view of the container is represented in Figure 1. This.
basically comprises an upper plate and a lower plate, as well a;s a two-part frame, which comprises an upper frame half ' and a lower frame half, In this view, however, only the upper plate 1.4 as well.
as the upper frame half 20 is visible. This upper plate 24 i~~
..
fastened with screws 18 to the upper frame half 20. This upper:
frame half 20 is pivotably connected by twa hinges 52 w~.t;h the ".
lower frame half (nc~~., shown) s,nd has two re~tnforc:ing elementb 2~
which in each case, iri the emhodimer~t. hexe repr,~sented~ GpnsiFt c~f a round rod. These reinforairig elements ~4 restrict t~~ a def~,ned degree the buokling csf the plaGas 1.~, 1~ wh~.oh~ rieoc~ssarily occurs ,.
upon freewing the suspension, Furtnexmoxe, a grip ~~ is attackiec~
to the upper fza,me half ~0, as well a9 hold:Lng :Lugs 44. These holding lugs ~k4 axe engaged by a fixing dev~_ae for loah~.ng ~.he container together w~.t~r~ t~,p ir~enti~al .xuolding ~,ugs ~~ situated an.
the lower frame half . This fi~ircg , device ~c~mpxi,ses a lever ~~ a~-,ri a :slidS_ny block 40. The lever 46 of ~k~~ f~.x~.ng device is pivol:abl.e with a pin 50 moun~:ed in a staxic3 48 fastened to the lower frame half . Final~,~, the upper plate :L~ also has t,wo xacesses ~2 and 3:3, vah~.ckx axe pxov~,ded respeoG~.~rcly with a saver 3~ ox- 35 corzstxucted as a cad. Tkie covers 34 and 35 ara rc~nnected arith the upper plate Z~ by ~ the screvre 36, zxi, th~,s embodiment, the xeoess 32 accommc-~dates a connection port (nt~t ~howti} , whi.l.~ tl~.~ 7_er~e5~a 3:3 aacommadates ~a~.7,ot tubes for blood group determina~:i,on, whi.oh ar-a :Likewise not S1'loWIl.
~n ~',icJ.ure 2, a side vievr of the c~antainer is .represented in the r~irc~ction of 'thu ~.x-rQw ~;. in Figure 1. Aa can be well.
zecogni~ed here, the sl.idins b~_ocl;. Ztl has, a eerieF of. ~_Lpper h.oldinc~
slots 4~ (eic) and a srriea of lower haldi.ng elate ~.3 (ai.~ey . These ho~,cling slots engage the holding ~.ug~ g~ o f the uppPx frame half 20 and the ~.awax frame ha~,f' :~2 when these ~.~,~ Qne upQxr ~k~~ Qther. The lower holding slots 4~ therein axe closed on a:~l sides, while the ~.lpp~:x balding slats ~3 are upward:Ly open. The sides of the hQldins~
slc~ta ~~ pc~i.nt. up to their openinr.~. with a slight inclination, The lever ~6 has a pivoting connecta.on with the sliding k~~.a~;k 40 key nteana of a p~.n ~.nd.i_cated by the dash~dotte~. line ~7. The grip 25 arranged ~a~, the upper frame half 20 can likewise be well r_ecc~gnized here. as well as the cQVr~r 34 ccnstruci~ed a,s a sap, wh~,~:h close off the rece.~a 3~ arranged i.n the upper ~a~.ate half ~~ .
A ~ecCa.~an tx~xough the container along the line A-fi. c~f Fi.gurP
1 is r~:pr~g~nted in Figu~:e 3. Th,e u~ape~: p~.ate 1~ and lower prat;.::
l~ .Forming the contaa.nex wa~.~,s axe respectively conncct.ed with thc~
upp4~: frame halt 20 or .the lower frame half ~~ her the gc:r~caa indicated lay J.i.nes s.$ . X~ microporaus layer 30 i.s mounted r~:spectively on the vutsidF of the upper place a-4 as v1e7.1 a:~ of l.k~~
7_ower p1_ate :l ~, and comprises a t~~ctil~ material in the ~~anlp:[.~;
here represented, which is fa~Lened w~txx a law tem~:~erature-stable ad~nec~zve layer to the outside of Whe u~rper plate i~t arid the low~:x plate ~.6. 11. grc~r~ve 62 ;i.s waxked ~.x~~tr~ the u.~~per f_rzmc half 2CJ
in, Wb.J.Gh a seal ~U is arzanged. ~'J~.i,a is constructed- as ~. lpw . CA 02203035 1997-04-17 temperature-stalale, ~Qft~ material eeal in tha emlaQdimcnt described, , <<
anal seals fluid t.ir,~ht the caar~ta~.ner interir~r. fcxrmed Yaetween tltt~
upper plate 3.4, the: lower plate 16, the upper frame half 2f~ c~nc~ t'h,~
lower frame ha7.~ ~~, :rh~: 4~p~er,~ fx,=arc~e half 20 ~.r7;~. t.h~ lower frame half ~2 have reinforcing elements 24 in ~a~h ease and have a plVc~tiIlr,~. COnnECtion with c;ach other through tha pins 54 located in the hirige~ S2. The hinges ~? and tk~e pins 54 axe at. tile sarw time preferably constructed of materials with basically equal ~~effi~ients s~f e~pans~.on, sr~ that a jamming is a~roided and the mQ~~-~.ity Qf~ the joints 7.s g~x~~:a.nte~d ~'~~n al= ~.mw temperatures. The ho~.ding lugs ~4 a~:xanged. can the upper frame half 20 arid, the Zcr~e;r ~rarae half 2~ arc ~:ngaged b~ the s~~,~,d~,r~g 1~~-Qe~ a-n tMe e;~c~sed positic5n of I:.hH GOIltal.n~~'. The container is held in the c~.oscd pos~.tion by self-~.or.)ca.~.g laetwean the inclinad sides of h~ldiaac~
alora ~1y or X13 and the k'ao7~d~.nq l.uga 4~k .
The functioning of the aontai.ner of the inven.t:i.~acl w~_J_7, ~xg'.lained ~aelow w:i.~.l~~ reference to ~'igur~s ~. to 3, de~cxil~~:d thoroughly above. The suspea~szon destined fwc f~~~~:i,x-lc~ l.i,vi.x-a~~
~:e.11 mat~~ial i.s pour~G3, a-tltU c'.t11 ~lc'18~1C lag euit~,b:~~ ~or deep fx~e~a~.n ~, and this Y.~ag' ~_~ txaen laid. in the conGaixiex' interior 1.2. ?~'Qr this, the upper ~ra.me half ~0 la uLVlI1'?.C~ open upward~.y, eo Lhat t)'»
contaa.ner inter~_or -1.~ is ac;c:essi.b~_e , xhe bag :i<s then :l.a~.d in ttzi,s, and G1't~ nipper frame half 20 is then stvung downward until ~,t li.~~ on Ghe J.c~we.r frame half 22. The upper plate 24 and the lower pia,te ~, are here respectively so fastened in the appropriate frame haloes ;~13 o.r,- 22, than in the C:losed ctrndition of the container they are arranged plane pa~:a~,le~, with ~.i,ttlG di,sta.nGe fxpm eaoh Qthex; . Upon r'losinc-~ the aonta9.ncr, the inserted bag is there)ay pr~ssc~d into a plate-shaped farm with a small, defined layer thickness, whert~by i.t almost completely fills the container interior z2 and lies on tree inside of the upper plate 14 and on the inside of the lower plate In this way, g~a~metr, i,~ inttratttac~eneiCies, euch ~.s folds or bt.tlges, are avQi.ded, sa that the >~r~g has a t~asx~a~,~.y ka~mog~:r~aus plate shape, and a l,~arg~e sur ~ace/u~~al.ume ~; ata.o is thexeby at~a.i.ned , ,'fn connection w~.t.h L1'te mi.ax'oparoua layer 3~ tnc~t~r'W~:d. an Ghe ou~:c~i~de of p~.ate~ ~.4 s.nd 16, which clearly increases the heat transfer to the cooling meda.um g~ixrc~~~nding the cantai.ner, a ,rapid and aontro~.~.~d ~~oling o~ Glae gall material i.s t.h~:z.Pk~y pc~~gy.~t,~,~, ~c that ttte sa~:vival rate of the daep frozen cell tvaGeriai, a.~ c7.eax~7,y.
incl'ea~ed with the container c~C l:he ;i.zxventian, T,l~e x'ei.nforcing elements ~4 arranged oz~ the .frame ha3.ves 20 and ~~ r~:strioG the k~uax~.ling of plats~s i4 and ~.6 which necessarily accuxs when freezing tl~e ~u~permxon, so that the homogenous p:l.at,~:
Ehc'lp~.'Of 1=h.P ~~_~~t.~C t]r'_~,Cf ~ Of_''.~fi'Pfa 11~ 1'lat~ n~n~~ i r~.~
' r ~
- ",, _ _ .",..~..., iau.ct.Lil~~.1 i.7 1JCA,b.LI.Gt.Ll,~i S
guax'antree~~ .
.r After the bag ~.s placed in the cont~;~.ri~r i,nt~rior 1~ and t,hP
ugpex frame half 20 is swung onto the Sower frame half., th~a up~ae.r.
frame ha~.t 20 and the lawe~: frame half 22 a~-e lc~c:kc~l wi,nh each other bar meaz~~ of the ~lid~.ng blcrch. 40 , The slid~,ng block 40 is continuously joined with the lpwe~; fxarne half 22 by the holding taiot~ ~~ o~,~a~e~l can a~,~. sir~e~, Qn, which, howover, it can las s~.id bask and ~rarth owa,ng to the slot-shaped construction of the holdinr~
slots 4~ . When the upper frame half ~0 ,ie swung onto the lower frame half ~22, the holding lugs 44 arrang~~l ~ti the upper ~;ryrt~ ha~"~
20 fit into the upwardly eapen upper haldi,ng ~l,Qts 4~ of the sJ.~.dinq bl.ocl~ 40 . ~y ~wi,x~g~,x~g Ghe ie~rex ~~ ma~.nted g~,vQGab~.y can, >rk~e stand ~k8 w~.tk~~.th.e p;i.n St7, the ~.QVer 46 movas the Sliding bloalc 40 aQ
tk~,at the upper and lower hr~iding slots 43 or 4~ constructed ran the ~:Liding Y~lt~~k 40 eno:Lc~sH the holding Pugs 44 arxa.n~ed on the upper.
f-. name ha7.f ~ ~:U ~tnc~ i~he ;l, rawer f;ract7A laal;C :~;! . 'fhH
;itzcla.t:wd construction of the sides Qf Ghe upper ktQ~-ding ~,lQt ~3 leads t~, ~.
~Lr~st'ig l:igYiLerr~.ng of tl~e upper frame half ~,o, whose stren~t~lu d~ponds upon the path desaxibed by the lever 25 in closing. In this way, l:he upper fratue half 213, ax~.d. the lower frame half ~2 axc~
locked together so that the container interior 1~ ie~ closed on a17.
sides. ~Plf-J.c?c:ka_ng l~c~tween the sa.des of the; h~.~~.~i~..r~g s'loLs 42 ~~x zo 43 r~L the ~~.ic~ing' blc~~k 40 an,d the holding lugs 44 brings about d ~c~r~euZ~a~ki.ng ~i~ation of ~~.he sliding black ~0 and at tha same Yim~
the lever 46, so that a aponta.neQUS QpPni,ng of the rontain~~; c~x ~, sla~)~~niz~g' 4f the ~.Q~k~.ng ~Qrce is prevented. Through the seal 60 arranged in tha uppex ~xame half 2~ i.n the gro~~t~'e ~~ forms.d therein, the con~~,~,n~x i~.~.~x~,Qr ~2 ;~~ ~~Qx~r~v~r ~~~le~i ~lLta.d-tight, so that the coating medium ~urrc~und~.ng tha ac~ntairier cannot get.
lntU tllE Cont3131Er 1I'ltE:riOr 12 , 'fhe container thus eecurel~ c:iosed can now bP grasped b~ t~l7,e drip ~6 and dipZacd into liquid nitrogen for frac~zing of thp ~~;L,1 material contained in the container.
1 ~.
Aascr~,gt.~.r~z~.
'~'h~ px~~ent xrt~rent~.ran rc~.a~.~s t~~ a container which is sW _tcd fr~r deep free~~_n~ sL~sprnsi~ans ~W liva_ng ee3_7. material in elastic bags.
beap frea~~.ng makas ,it passib~Le to ma3.ntain :L,iv~.ng b3.aZoa~.c:a~.
t'rel.~.~ fox' pra~.-~tical.ly unlitni.ted tinie. Thug, fur examp~.e, Le~are ~,nterventions ' which cause great blood ~' ~.oss an.~. which oan h~
scheduled elcctivcly, ~~lc~od ~.9 t;ah~n from t.h~ pa~.ierlt, prac~asec~, and subsequently frozen and stared. zt is ac~nsequently pc~saible to build up a ~uffic~.enG deposit vt the patientr s own k~lQOd., sQ than the pat~,ent can b~: prrav~.d~.d wii~xt k~~.s cwri ~.7a.i;'c~d. d~.lx~,T~~
k:,hP r~per,~.Liozz and af:tcrwards. An intectivn s~f the pal.~.ezW wa.th v~.~:tzs~s aau~a.ng .'~xh 1~,_,~~~ ~,'a'~. HI vT, ~.k:~s.3~'~.~.';A,u~"Y v::c:.ikAtd:l.'A7l~i~~
:i.ii ,i ~1~;~~.~lt C7tpkit~,~' 'ta.LG0~1 c~.llct not detectable swing to the "diar~noNta.c ~u3.ndow, ~, ~. , t.t~ereby reliably pre'trPnt~d. M~reovex, the deep free?inch, c~eneral7_y referred ~.c~ a~ cr~lopreservatic~n, makes possible the greParation cf "q~_ia.~°ar~ti.n,~ prega~at~ians" from fc~rcigr~ rionox k~:Ls~od, the bricic~in ~ ~~
t~mpca~:ary bott~.e-necks, az~d tile atr~cl~ing cif _rare l~~,raQr~ ~rougs.
~l'~ua] ly, l.h~ uvhc~l~ Y~ar~c.i~3. pres~r'~~S t~thi~h are ta3~en arc.
separated by centrifugation into.erythrocytes and blood plasma a.nd axe then transferred to bags not affected by low temperatures.
These are subsequently deposited in metal containers, with which they axe dipped into liquid nitrogen far cooling. In order that the living cells are not damaged or destroyed during freezing, a.
controlled and rapid cooling, with a high rate of cooling is'.
necessary with erythrocytes. The usual metal containers nevertheless have the disadvantage that they enable only a limited heat transfer to the cooling medium so that, with unavoidable geometric inhomogeneities of the bag contained in the container, uncontrolled cooling can occur at least in these partial areas.
Against' this background, it is the object of the present invention to make available a container for deep freezing of suspensions of living cell materials found in elastic bags, with which a rapid and controlled cooling of the cell. material is possible.
According to the present invention, there is provided a container closable on all sides, which is suited for deep freezing suspensions of living cell material located in elastic bags, characterized by a microporous layer fastened on the outside of the container by means of an adhesive layer.
The microporous 7:ayer on the outside of the container raises the heat transfer to the cooling medium and thereby greatly increases the rate of cooling, so that a rapid and controlled cooling of the cell material is possible, and the survival rate of the cell. material deep fraier~ wxt; h the ~prit<~~~.nrr ~f the: inuent~.nn ., is thereby clearly inareaaed.
In accordance with a preferx_'ed furLtzex; emkaodiment of_ the invention, t.:he mi~r~p~x~u~~ layex- ~ampx~.~ser~ Qf textile ms.teii.aZs.
These can, far examp~.e, be cQnstxucted a~ a ~abrio tape of acctatA
,.
~'ay~z1 wa..th a temperature-stable aarylatc adhesive, 9o that the textile material can be simply and reliably fiasteneclr~n the outside of the ~:an.tainer and withstands repeated rapid coelin~ and relmas;~.nc~ , A uarti.au~.ax7.y adva.nGageoua embc~di~nenL oaf tine it~.ventrxc.~n provides that t;he aontaa,nel has tiwv than-waX~,ed met~al.~.~,c plate;
arranged, plane pax~a~.~.e~., wl».ok~ haxm the container walls, and, l~aa a frame aortaxst.~.ng ef two halves, whereby apprr~priately the plates as well as the frame oomprise mat;eria~. nit atieeted lay lc~w tem~aeratuze. ,F~duantage,ously, one ~J_aLe :i_~ re:~~~e~,:t::i.ve7.y fa;~trermd xn.
c~n~: frame: half, the trwo frame halves are pivQtab3y faatiened tips each ~rther by at 7.eGZSt one joint, and Lhe ~.~~.al~e:~ l:~x~texsec:~ :~xi l:h~
~:rdme ~iaives c:an Le fixed in the plane paralJ.e~. posa.ta.on by means of a ~~.a~~.x~g device . pdvanta~e~usly, the plates fixed ~n the plane.
paxa~,~.el ~~ositinn have at. i=he ~;am~ time a defined distance from each other, so that tile bag glared in the c~ntai.nc~r_ is ~ar.PS,~ec~ a.n.to a p:l.at:P~shages~ .fc~r_-tn ~rxtah tY~e: ree~tzixed layer thi.ukness uZ~~n e~.asi.ng the container. The container thereby presses the elastic bag into a basically homogenous plate shape, so that on the one hand, a large surface/volume ratio is attained, and on the other hand, geometric inhomogeneities such as folds or bulges are avoided.
further improved heat transmission is thereby attained, anal an uncontrolled cooling due to inhomogeneities in shape is relia.bl;y prevented. Furthermore, the thin homogenous plate shape of the bag enables a space-saving storage and a rapid repeating.
Owing to this construction of the container in accordance with the invention, a simple and rapid handling is furthermore made possible, since the container for inserting and removing the elastic bag with the suspension can be completely opened up.
In a further embodiment, a seal can be arranged in a frame hal:E, which is advantageously constructed as a soft material seal anc~ is stable at low temperatures, so that the interior of the container can be sealed fluid tight. This seal can be made of PTFE or another suitable matexial.
Since the elastic bags which receive the suspension usually have connection ports and pilot tubes, one or more recesses are advantageously arranged on at least one of the plates and are: so constructed as to be able to accommodate connection ports or pilot tubes. In this way, these do not impede closing the container, and the defined plane parallel. distance between the two plates is guaranteed, even when using an elastic bag with connection ports.
These recesses are advantageously closeable with a fluid-tight closure element, so that the cooling medium cannot get into the interior of the container.
A preferable embodiment provides taht the plates have a surface roughness of < 1 ~.m on their side oriented toward the anterior of the container, so that thermal contact between bag and plates is ensured during the entire cooling-process.
The invention is discussed below in greater detail on t:he basis of the figures, wherein:
Figure l shows a plan view of the container, Figure 2 shows a side view of the container in the direct:i.on:
of the arrow X in Figure l; and Figure 3 shows a section through the container along the lane;
A-A in Figure 1.
A plan view of the container is represented in Figure 1. This.
basically comprises an upper plate and a lower plate, as well a;s a two-part frame, which comprises an upper frame half ' and a lower frame half, In this view, however, only the upper plate 1.4 as well.
as the upper frame half 20 is visible. This upper plate 24 i~~
..
fastened with screws 18 to the upper frame half 20. This upper:
frame half 20 is pivotably connected by twa hinges 52 w~.t;h the ".
lower frame half (nc~~., shown) s,nd has two re~tnforc:ing elementb 2~
which in each case, iri the emhodimer~t. hexe repr,~sented~ GpnsiFt c~f a round rod. These reinforairig elements ~4 restrict t~~ a def~,ned degree the buokling csf the plaGas 1.~, 1~ wh~.oh~ rieoc~ssarily occurs ,.
upon freewing the suspension, Furtnexmoxe, a grip ~~ is attackiec~
to the upper fza,me half ~0, as well a9 hold:Lng :Lugs 44. These holding lugs ~k4 axe engaged by a fixing dev~_ae for loah~.ng ~.he container together w~.t~r~ t~,p ir~enti~al .xuolding ~,ugs ~~ situated an.
the lower frame half . This fi~ircg , device ~c~mpxi,ses a lever ~~ a~-,ri a :slidS_ny block 40. The lever 46 of ~k~~ f~.x~.ng device is pivol:abl.e with a pin 50 moun~:ed in a staxic3 48 fastened to the lower frame half . Final~,~, the upper plate :L~ also has t,wo xacesses ~2 and 3:3, vah~.ckx axe pxov~,ded respeoG~.~rcly with a saver 3~ ox- 35 corzstxucted as a cad. Tkie covers 34 and 35 ara rc~nnected arith the upper plate Z~ by ~ the screvre 36, zxi, th~,s embodiment, the xeoess 32 accommc-~dates a connection port (nt~t ~howti} , whi.l.~ tl~.~ 7_er~e5~a 3:3 aacommadates ~a~.7,ot tubes for blood group determina~:i,on, whi.oh ar-a :Likewise not S1'loWIl.
~n ~',icJ.ure 2, a side vievr of the c~antainer is .represented in the r~irc~ction of 'thu ~.x-rQw ~;. in Figure 1. Aa can be well.
zecogni~ed here, the sl.idins b~_ocl;. Ztl has, a eerieF of. ~_Lpper h.oldinc~
slots 4~ (eic) and a srriea of lower haldi.ng elate ~.3 (ai.~ey . These ho~,cling slots engage the holding ~.ug~ g~ o f the uppPx frame half 20 and the ~.awax frame ha~,f' :~2 when these ~.~,~ Qne upQxr ~k~~ Qther. The lower holding slots 4~ therein axe closed on a:~l sides, while the ~.lpp~:x balding slats ~3 are upward:Ly open. The sides of the hQldins~
slc~ta ~~ pc~i.nt. up to their openinr.~. with a slight inclination, The lever ~6 has a pivoting connecta.on with the sliding k~~.a~;k 40 key nteana of a p~.n ~.nd.i_cated by the dash~dotte~. line ~7. The grip 25 arranged ~a~, the upper frame half 20 can likewise be well r_ecc~gnized here. as well as the cQVr~r 34 ccnstruci~ed a,s a sap, wh~,~:h close off the rece.~a 3~ arranged i.n the upper ~a~.ate half ~~ .
A ~ecCa.~an tx~xough the container along the line A-fi. c~f Fi.gurP
1 is r~:pr~g~nted in Figu~:e 3. Th,e u~ape~: p~.ate 1~ and lower prat;.::
l~ .Forming the contaa.nex wa~.~,s axe respectively conncct.ed with thc~
upp4~: frame halt 20 or .the lower frame half ~~ her the gc:r~caa indicated lay J.i.nes s.$ . X~ microporaus layer 30 i.s mounted r~:spectively on the vutsidF of the upper place a-4 as v1e7.1 a:~ of l.k~~
7_ower p1_ate :l ~, and comprises a t~~ctil~ material in the ~~anlp:[.~;
here represented, which is fa~Lened w~txx a law tem~:~erature-stable ad~nec~zve layer to the outside of Whe u~rper plate i~t arid the low~:x plate ~.6. 11. grc~r~ve 62 ;i.s waxked ~.x~~tr~ the u.~~per f_rzmc half 2CJ
in, Wb.J.Gh a seal ~U is arzanged. ~'J~.i,a is constructed- as ~. lpw . CA 02203035 1997-04-17 temperature-stalale, ~Qft~ material eeal in tha emlaQdimcnt described, , <<
anal seals fluid t.ir,~ht the caar~ta~.ner interir~r. fcxrmed Yaetween tltt~
upper plate 3.4, the: lower plate 16, the upper frame half 2f~ c~nc~ t'h,~
lower frame ha7.~ ~~, :rh~: 4~p~er,~ fx,=arc~e half 20 ~.r7;~. t.h~ lower frame half ~2 have reinforcing elements 24 in ~a~h ease and have a plVc~tiIlr,~. COnnECtion with c;ach other through tha pins 54 located in the hirige~ S2. The hinges ~? and tk~e pins 54 axe at. tile sarw time preferably constructed of materials with basically equal ~~effi~ients s~f e~pans~.on, sr~ that a jamming is a~roided and the mQ~~-~.ity Qf~ the joints 7.s g~x~~:a.nte~d ~'~~n al= ~.mw temperatures. The ho~.ding lugs ~4 a~:xanged. can the upper frame half 20 arid, the Zcr~e;r ~rarae half 2~ arc ~:ngaged b~ the s~~,~,d~,r~g 1~~-Qe~ a-n tMe e;~c~sed positic5n of I:.hH GOIltal.n~~'. The container is held in the c~.oscd pos~.tion by self-~.or.)ca.~.g laetwean the inclinad sides of h~ldiaac~
alora ~1y or X13 and the k'ao7~d~.nq l.uga 4~k .
The functioning of the aontai.ner of the inven.t:i.~acl w~_J_7, ~xg'.lained ~aelow w:i.~.l~~ reference to ~'igur~s ~. to 3, de~cxil~~:d thoroughly above. The suspea~szon destined fwc f~~~~:i,x-lc~ l.i,vi.x-a~~
~:e.11 mat~~ial i.s pour~G3, a-tltU c'.t11 ~lc'18~1C lag euit~,b:~~ ~or deep fx~e~a~.n ~, and this Y.~ag' ~_~ txaen laid. in the conGaixiex' interior 1.2. ?~'Qr this, the upper ~ra.me half ~0 la uLVlI1'?.C~ open upward~.y, eo Lhat t)'»
contaa.ner inter~_or -1.~ is ac;c:essi.b~_e , xhe bag :i<s then :l.a~.d in ttzi,s, and G1't~ nipper frame half 20 is then stvung downward until ~,t li.~~ on Ghe J.c~we.r frame half 22. The upper plate 24 and the lower pia,te ~, are here respectively so fastened in the appropriate frame haloes ;~13 o.r,- 22, than in the C:losed ctrndition of the container they are arranged plane pa~:a~,le~, with ~.i,ttlG di,sta.nGe fxpm eaoh Qthex; . Upon r'losinc-~ the aonta9.ncr, the inserted bag is there)ay pr~ssc~d into a plate-shaped farm with a small, defined layer thickness, whert~by i.t almost completely fills the container interior z2 and lies on tree inside of the upper plate 14 and on the inside of the lower plate In this way, g~a~metr, i,~ inttratttac~eneiCies, euch ~.s folds or bt.tlges, are avQi.ded, sa that the >~r~g has a t~asx~a~,~.y ka~mog~:r~aus plate shape, and a l,~arg~e sur ~ace/u~~al.ume ~; ata.o is thexeby at~a.i.ned , ,'fn connection w~.t.h L1'te mi.ax'oparoua layer 3~ tnc~t~r'W~:d. an Ghe ou~:c~i~de of p~.ate~ ~.4 s.nd 16, which clearly increases the heat transfer to the cooling meda.um g~ixrc~~~nding the cantai.ner, a ,rapid and aontro~.~.~d ~~oling o~ Glae gall material i.s t.h~:z.Pk~y pc~~gy.~t,~,~, ~c that ttte sa~:vival rate of the daep frozen cell tvaGeriai, a.~ c7.eax~7,y.
incl'ea~ed with the container c~C l:he ;i.zxventian, T,l~e x'ei.nforcing elements ~4 arranged oz~ the .frame ha3.ves 20 and ~~ r~:strioG the k~uax~.ling of plats~s i4 and ~.6 which necessarily accuxs when freezing tl~e ~u~permxon, so that the homogenous p:l.at,~:
Ehc'lp~.'Of 1=h.P ~~_~~t.~C t]r'_~,Cf ~ Of_''.~fi'Pfa 11~ 1'lat~ n~n~~ i r~.~
' r ~
- ",, _ _ .",..~..., iau.ct.Lil~~.1 i.7 1JCA,b.LI.Gt.Ll,~i S
guax'antree~~ .
.r After the bag ~.s placed in the cont~;~.ri~r i,nt~rior 1~ and t,hP
ugpex frame half 20 is swung onto the Sower frame half., th~a up~ae.r.
frame ha~.t 20 and the lawe~: frame half 22 a~-e lc~c:kc~l wi,nh each other bar meaz~~ of the ~lid~.ng blcrch. 40 , The slid~,ng block 40 is continuously joined with the lpwe~; fxarne half 22 by the holding taiot~ ~~ o~,~a~e~l can a~,~. sir~e~, Qn, which, howover, it can las s~.id bask and ~rarth owa,ng to the slot-shaped construction of the holdinr~
slots 4~ . When the upper frame half ~0 ,ie swung onto the lower frame half ~22, the holding lugs 44 arrang~~l ~ti the upper ~;ryrt~ ha~"~
20 fit into the upwardly eapen upper haldi,ng ~l,Qts 4~ of the sJ.~.dinq bl.ocl~ 40 . ~y ~wi,x~g~,x~g Ghe ie~rex ~~ ma~.nted g~,vQGab~.y can, >rk~e stand ~k8 w~.tk~~.th.e p;i.n St7, the ~.QVer 46 movas the Sliding bloalc 40 aQ
tk~,at the upper and lower hr~iding slots 43 or 4~ constructed ran the ~:Liding Y~lt~~k 40 eno:Lc~sH the holding Pugs 44 arxa.n~ed on the upper.
f-. name ha7.f ~ ~:U ~tnc~ i~he ;l, rawer f;ract7A laal;C :~;! . 'fhH
;itzcla.t:wd construction of the sides Qf Ghe upper ktQ~-ding ~,lQt ~3 leads t~, ~.
~Lr~st'ig l:igYiLerr~.ng of tl~e upper frame half ~,o, whose stren~t~lu d~ponds upon the path desaxibed by the lever 25 in closing. In this way, l:he upper fratue half 213, ax~.d. the lower frame half ~2 axc~
locked together so that the container interior 1~ ie~ closed on a17.
sides. ~Plf-J.c?c:ka_ng l~c~tween the sa.des of the; h~.~~.~i~..r~g s'loLs 42 ~~x zo 43 r~L the ~~.ic~ing' blc~~k 40 an,d the holding lugs 44 brings about d ~c~r~euZ~a~ki.ng ~i~ation of ~~.he sliding black ~0 and at tha same Yim~
the lever 46, so that a aponta.neQUS QpPni,ng of the rontain~~; c~x ~, sla~)~~niz~g' 4f the ~.Q~k~.ng ~Qrce is prevented. Through the seal 60 arranged in tha uppex ~xame half 2~ i.n the gro~~t~'e ~~ forms.d therein, the con~~,~,n~x i~.~.~x~,Qr ~2 ;~~ ~~Qx~r~v~r ~~~le~i ~lLta.d-tight, so that the coating medium ~urrc~und~.ng tha ac~ntairier cannot get.
lntU tllE Cont3131Er 1I'ltE:riOr 12 , 'fhe container thus eecurel~ c:iosed can now bP grasped b~ t~l7,e drip ~6 and dipZacd into liquid nitrogen for frac~zing of thp ~~;L,1 material contained in the container.
1 ~.
Claims (9)
1. A container closable on all sides, which is suited for deep freezing suspensions of living cell material located in elastic bags, characterized by a microporous layer fastened on the outside of the container by means of an adhesive layer.
2. Container according to claim 1, characterized in that the microporous layer comprises textile materials.
3. Container according to claim 1 or 2, characterized in that the container has two thin-walled metal plates arranged plane parallel which form container walls, and a frame comprising two halves.
4. Container according to claim 3, characterized in that one plate is fastened in one frame half, and both frame halves are pivotably fastened to each other by means of at least one joint.
5. Container according to claim 3 or 4, characterized in that the plates fastened in the frame halves are fixable in the plane parallel position using a fixing device.
6. Container according to any one of claims 3 to 5, characterized in that the container interior is sealable fluid-tight by a seal arranged in a frame half.
7. Container according to any one of claims 3 to 6, characterized in that at least one of the plates has at least one recess for connection ports or pilot tubes arranged on the elastic bag.
8. Container according to claim 7, characterized in that the recess is closable in a fluid-tight manner with a closure element.
9. Container according to any one of claims 3 to 8, characterized in that the plates have a surface roughness of < 1 µm on their side oriented toward the container interior.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4437091.1 | 1994-10-17 | ||
| DE4437091A DE4437091C2 (en) | 1994-10-17 | 1994-10-17 | freezing containers |
| PCT/EP1995/004048 WO1996011663A1 (en) | 1994-10-17 | 1995-10-14 | Deep-freezing container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2203035A1 CA2203035A1 (en) | 1996-04-25 |
| CA2203035C true CA2203035C (en) | 2006-05-23 |
Family
ID=6530983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002203035A Expired - Fee Related CA2203035C (en) | 1994-10-17 | 1995-10-14 | Deep-freezing container |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5935848A (en) |
| EP (1) | EP0786981B1 (en) |
| JP (1) | JP3674710B2 (en) |
| CA (1) | CA2203035C (en) |
| DE (2) | DE4437091C2 (en) |
| ES (1) | ES2122687T3 (en) |
| WO (1) | WO1996011663A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9610488D0 (en) * | 1996-05-18 | 1996-07-24 | Planer Prod Ltd | Protection means for freezing process |
| EP0853238B1 (en) * | 1997-01-13 | 2002-09-18 | Daniel Dr. Studer | Sample holder for water-containing samples and method for use thereof |
| DE19736372A1 (en) | 1997-08-21 | 1999-02-25 | Ingo Dipl Ing Heschel | Refrigerating device |
| DE10056181C1 (en) | 2000-11-13 | 2002-03-07 | Hiberna Ag | Blood bag cassette for cryostorage of blood samples has reception space for blood bag defined between 2 cooperating cassette plates |
| US6467642B2 (en) | 2000-12-29 | 2002-10-22 | Patrick L. Mullens | Cryogenic shipping container |
| US6539726B2 (en) | 2001-05-08 | 2003-04-01 | R. Kevin Giesy | Vapor plug for cryogenic storage vessels |
| EP2063706A2 (en) * | 2006-09-11 | 2009-06-03 | I.M.T. Interface Multigrad Technology Ltd. | Systems, devices and methods for freezing and thawing biological materials |
| US20090123992A1 (en) * | 2007-11-12 | 2009-05-14 | Milton Chin | Shape-Shifting Vitrification Device |
| US9301520B2 (en) | 2007-12-21 | 2016-04-05 | Sartorius Stedim North America Inc. | Systems and methods for freezing, storing and thawing biopharmaceutical materials |
| US8177123B2 (en) * | 2008-09-24 | 2012-05-15 | Sartorius Stedim North America Inc. | Systems and methods for freezing, storing and thawing biopharmaceutical materials |
| US9086347B2 (en) * | 2011-06-03 | 2015-07-21 | Provia Laboratories, LLC | Cryopreservation device with retrofitted electronic tracking device |
| RU2478363C1 (en) * | 2012-03-14 | 2013-04-10 | Общество с ограниченной ответственностью "Научно-производственная инновационная фирма "Гиперион" | Device for freezing blood components |
| US10905721B2 (en) * | 2013-01-28 | 2021-02-02 | Regenexx, Llc. | Device and methods for platelet lysis or activation |
| US9346571B2 (en) | 2013-10-31 | 2016-05-24 | Pall Corporation | Multi-chamber freezing bag |
| WO2016023034A1 (en) | 2014-08-08 | 2016-02-11 | Fremon Scientific, Inc. | Smart bag used in sensing physiological and/or physical parameters of bags containing biological substance |
| SG11202010056RA (en) * | 2018-04-11 | 2020-11-27 | Astero Bio Corp | Systems and methods for cryostorage bag protection |
| US10732083B2 (en) | 2018-05-07 | 2020-08-04 | Fremon Scientific, Inc. | Thawing biological substances |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776411A (en) * | 1971-12-23 | 1973-12-04 | J Luckadoo | Holder for thin flat plastic containers, particularly for blood serum |
| JPS5214553B2 (en) * | 1973-03-02 | 1977-04-22 | ||
| US4074753A (en) * | 1975-01-02 | 1978-02-21 | Borg-Warner Corporation | Heat transfer in pool boiling |
| US4018911A (en) * | 1975-11-10 | 1977-04-19 | The United States Of America As Represented By The Secretary Of The Navy | Method for large volume freezing and thawing of packed erythrocytes |
| DE2557870A1 (en) * | 1975-12-22 | 1977-06-23 | Linde Ag | METHOD AND DEVICE FOR FREEZING BIOLOGICAL SUBSTANCES |
| US4288897A (en) * | 1978-12-04 | 1981-09-15 | Uop Inc. | Method of producing a nucleate boiling surface on a heat transfer member |
| US4371034A (en) * | 1979-08-03 | 1983-02-01 | Hisaka Works, Limited | Plate type evaporator |
| US5320119A (en) * | 1993-03-05 | 1994-06-14 | Tnco, Inc. | Surgical tools cleansing |
-
1994
- 1994-10-17 DE DE4437091A patent/DE4437091C2/en not_active Expired - Fee Related
-
1995
- 1995-10-14 WO PCT/EP1995/004048 patent/WO1996011663A1/en active IP Right Grant
- 1995-10-14 CA CA002203035A patent/CA2203035C/en not_active Expired - Fee Related
- 1995-10-14 DE DE59503634T patent/DE59503634D1/en not_active Expired - Fee Related
- 1995-10-14 EP EP95935937A patent/EP0786981B1/en not_active Expired - Lifetime
- 1995-10-14 ES ES95935937T patent/ES2122687T3/en not_active Expired - Lifetime
- 1995-10-14 US US08/817,264 patent/US5935848A/en not_active Expired - Fee Related
- 1995-10-14 JP JP51294496A patent/JP3674710B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59503634D1 (en) | 1998-10-22 |
| JPH10507113A (en) | 1998-07-14 |
| EP0786981B1 (en) | 1998-09-16 |
| DE4437091A1 (en) | 1996-04-18 |
| US5935848A (en) | 1999-08-10 |
| JP3674710B2 (en) | 2005-07-20 |
| EP0786981A1 (en) | 1997-08-06 |
| WO1996011663A1 (en) | 1996-04-25 |
| DE4437091C2 (en) | 2003-07-03 |
| ES2122687T3 (en) | 1998-12-16 |
| CA2203035A1 (en) | 1996-04-25 |
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