PL141956B1 - Measuring mode of an apparatus for examining blood coagulation factors - Google Patents

Measuring mode of an apparatus for examining blood coagulation factors Download PDF

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Publication number
PL141956B1
PL141956B1 PL24818384A PL24818384A PL141956B1 PL 141956 B1 PL141956 B1 PL 141956B1 PL 24818384 A PL24818384 A PL 24818384A PL 24818384 A PL24818384 A PL 24818384A PL 141956 B1 PL141956 B1 PL 141956B1
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PL
Poland
Prior art keywords
measuring
optocoupler
optocouplers
blood coagulation
coagulation factors
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PL24818384A
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Polish (pl)
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PL248183A1 (en
Inventor
Jozef Przytulski
Adam Dietrich
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Adam Dietrich
Jozef Przytulski
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Application filed by Adam Dietrich, Jozef Przytulski filed Critical Adam Dietrich
Priority to PL24818384A priority Critical patent/PL141956B1/en
Publication of PL248183A1 publication Critical patent/PL248183A1/en
Publication of PL141956B1 publication Critical patent/PL141956B1/en

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Description

Przedmiotem wynalazkujest wezel pomiarowy urzadzenia do badan czynników krzepniecia krwi, stosowany w koagu- lometrach.Dotychczasowe konstrukcje wezlów pomiarowych koagu- lometrów róznych firm wykorzystuja zjawisko zmetnienia surowicy podczas powstania skrzepu krwi. W starszych ro¬ zwiazaniach opierano sie równiez na zjawisku wzrostu le¬ pkosci surowicy podczas powstania skrzepu (pomiar typu wiskozymetrycznego).Wada koagulometrów wykorzystujacych efekt zmetnie¬ nia surowicyjest trudnosc realizacjiefektywnego mieszania próbki bez zaklócen pomiaru. Urzadzenia typu wiskozyme¬ trycznego nie posiadaja tej wady, leczzawodza przy pomia¬ rach surowic o niskim stezeniu fibrynogenu. Oba rodzaje koagulometrów pozwalaja wykryc moment, w którym suro¬ wica osiagnela pewien blizej nieokreslony stopien wykrze- pienia.Celem wynalazku jest usuniecie powyzszych niedogodno¬ sci oraz uzyskaniekompleksowej informacji oprzebiegu pro¬ cesu krzepniecia.Wezel pomiarowy urzadzenia do badania czynników krzepniecia krwi wedlug wynalazku sklada sie z: nierucho¬ mej probówkikalibrowanej z kulka ferromagnetycznaporu¬ szajaca sie w badanej surowicy pod wplywem zewnetrznego pola magnetycznego, uzyskiwanego za pomoca dwóch ma¬ gnesów trwalych- nieruchomego i obrotowego poruszanego silnikiem oraz dwóch transoptorów pomiarowych, umie¬ szczonych jeden na drugim w plaszczyznie prostopadlej do plaszczyznymagnesów. Transoptorypomiarowe sluza do po¬ miaru czasu przelotu kulki, który jest miara lepkosci kine¬ matycznej surowicy oraz stopnia zmetnienia.Zaleta takiego rozwiazania jest mozliwosc jednoczesnego pomiaru zmian gestosci optycznej (stopnia zmetnienia) i le¬ pkosci badanej surowicy, co umozliwia w praktyce wykry¬ wanie skrzepów w osoczu o.zawartosci fibrynogenu 20mg%.Parametr tenjest bardzo istotny przy badaniach wymagaja¬ cychvuiycia osocza rozcienczonego np. przy badaniu steze¬ nia fibrynogenu. Dostepne w 1966 r. na rynku swiatowym koagulometry wymagaja stosowania osocza o minimalnym stezeniu fibrynogenu od 25mg% do 100mg%, zaleznie od typu aparatu.Wyzej opisany wezel pomiarowy znalazl zastosowanie w urzadzeniach o nazwie „Koagulometr 104" i „Koagulo- metr 204" umozliwiajacych pomiar: czasu protrombinowego, trombinowego, kaolinowo-kefalinówego, reptilazowego, Stypvena, rekalcynacji; stezenia fibrynogenu oraz oznacza¬ nia nastepujacych czynników krzepniecia krwi: U, V, Vii, vm,ix,xxi,xn.- Zaleta opisywanego wezla pomiarowego jest mozliwosc rozszerzeniajego zastosowanpoprzez modyfikacje. Wprowa¬ dzenie ukladu sterujacego magnesem obrotowym w zale¬ znosci od sygnalów pochodzacych z transoptorów pomiaro¬ wych oraz zastapieniejednegoztransoptorówpomiarowych na swiatlo widzialne transoptorem czulym na promieniowa¬ nie podczerwone o odpowiednich parametrach czyniz opisa¬ nego wezla pomiarowego narzedzie do pomiaru, agregacji krwinek. Uklad sterujacy magnesem powinien zapewniac mozliwosc zatrzymania kulki dokladnie w srodku po miedzy transoptorami pomiarowymi.Przedmiot wynalazkuprzedstawiono w przykladzie wyko- 141956141966 nania na rysunku. W korpusie wezla pomiarowego - nie pokazano na rysunku znajduje sie nieruchoma probówka kalibrowana 1 z kulka ferromagnetyczna 2 zanurzona w badanej surowicy krwi. Prostopadle do probówki jest umieszczony zespól dwóch magnesów trwalych 3 i 4. magnes 3jest nieruchomy a zamocowany obrotowo magnes 4, nape¬ dzany silnikiem 5, sluzy do przesuwania kulki 2 w probówce 1 w ten sposób, aby kolejno przeslaniala dwa transoptory pomiarowe: górny6 idolny 7. Transoptorypomiarowe 6i 7 sa umieszczone w plaszczyznie prostopadlej do magnesów 3 i 4.Dzialanie wezla jest nastepujace: podczas wkladania pro¬ bówki 1 z kulka 2 i badanym osoczem w miejsce pomiarowe zostaje przysloniety kulka 2 górny transoptor pomiarowy 6, co powoduje; za posrednictwem ukladu sterujacego - nie pokazano np rysunku; wlaczenie silnika 5,- który poprzez przekladnie!- nie pokazano na rysunku obraca magnes 4 a tym samym uruchamia intensywne mieszanie surowicy kulka2. W momencie dodania odczynnika inicjujacego roz¬ poczecie reakcji krzepniecia uklad sterujacy zeruje i uru¬ chamia stoper elektroniczny - nie pokazano na rysunku.Wytworzony po pewnym czasie wprobówce1 skrzep powo¬ duje zahamowanie kulki 2 co wykrywa uklad sterujacy za posrednictwem transoptorów 6 i 7. Wykrycie skrzepu powo¬ duje zatrzymanie stopera na wartosci mierzonego czasu krzepniecia.Zastrzezenia patentowe 1. Wezel pomiarowy urzadzenia do badania czynników krzepnieciakrwi,znamienny tym, ze sklada sie znierucho¬ mej kalibrowanej probówki (i), umieszczonej w niej kulki ferromagnetycznej (2), magnesu trwalego nieruchomego (3) i magnesu trwalego wirujacego (4), poruszanego silnikiem (5) oraztransoptorów pomiarowych (6)i(7) rozmieszczonych tak, ze kulka ferromagnetyczna (2) wykonujaca ruch perio¬ dyczny wymuszonyzmiennym polemmagnetycznymod mag¬ nesów (3) i (4), przeslania przemiennie transoptor pomiaro¬ wy górny (6) i dolny (7). 2. Wezel wedlug zastrz. 1, znamienny tym, ze zawiera uklad sterujacy zmiana pola magnetycznego, w zaleznosci od sygnalów z transoptorów (6) i (7). 3. Wezel wedlug zastrz. 1 znamienny tym, ze transoptor (6) jest czuly na podczerwien, a transoptor (7) jest czujy na swatlo widzialne.Ftg. 1 ZOD 463/1500/87 90 Cena 180 zl PLThe subject of the invention is a measuring node of a device for blood coagulation tests, used in coagulometers. The existing constructions of measuring knots of coagulometers of various companies use the phenomenon of serum thinning during the formation of a blood clot. Older solutions also relied on the phenomenon of an increase in serum viscosity during the formation of a clot (measurement of the viscometric type). The disadvantage of coagulometers using the effect of serum thinning is the difficulty in achieving effective mixing of the sample without disturbing the measurement. Devices of the viscometric type do not suffer from this disadvantage but fail when measuring sera with a low concentration of fibrinogen. Both types of coagulometers make it possible to detect the moment when the serum has reached a certain indefinite degree of clotting. The aim of the invention is to eliminate the above-mentioned inconveniences and to obtain comprehensive information on the course of the coagulation process. The measuring node of the device for the examination of coagulation factors consists of the blood network with: a stationary test tube calibrated with a ferromagnetic ball moving in the test serum under the influence of an external magnetic field, obtained by means of two permanent magnets - a stationary and rotating motor-operated magnet and two measuring optocouplers placed one on top of the other in a plane perpendicular to the the plane of the magnets. Measuring optocouplers are used to measure the time of the ball flight, which is a measure of the kinematic viscosity of the serum and the degree of turbidity. The advantage of this solution is the possibility of simultaneous measurement of changes in optical density (turbidity) and velocity of the tested serum, which in practice enables the detection of blood clots with a fibrinogen content of 20 mg%. This parameter is very important in studies requiring the consumption of diluted plasma, for example in the study of fibrinogen concentration. Coagulometers available on the world market in 1966 require the use of plasma with a minimum concentration of fibrinogen from 25mg% to 100mg%, depending on the type of apparatus. The measuring node described above has been used in devices called "Coagulometer 104" and "Coagulometer 204", which enable measurement of: prothrombin time, thrombin time, kaolin-kephalin time, reptilase time, Stypven time, recalcination time; fibrinogen concentration and determination of the following blood coagulation factors: U, V, VII, vm, ix, xxi, xn. The advantage of the described measuring node is the possibility of extending it by means of modifications. Introduction of a control system for a rotating magnet depending on the signals from measuring optocouplers and replacement of one of the measuring optocouplers for visible light with an optocoupler sensitive to infrared radiation with appropriate parameters of the described measuring node, a measuring instrument, The magnet controlling system should ensure the possibility of stopping the ball exactly in the middle between the measuring optocouplers. The subject of the invention is presented in the example of the execution in the drawing. In the body of the measuring node - not shown in the figure, there is a stationary test tube calibrated 1 with a ferromagnetic ball 2 immersed in the tested blood serum. A set of two permanent magnets 3 and 4 is placed perpendicular to the test tube. The magnet 3 is stationary and the rotating magnet 4, driven by the motor 5, is used to move the ball 2 in the test tube 1 in such a way as to successively screen two measuring optocouplers: upper 6 and lower 7 The measuring optocouplers 6 and 7 are placed in a plane perpendicular to the magnets 3 and 4. The operation of the node is as follows: when inserting the test tube 1 with the ball 2 and the tested plasma, the ball 2 covers the upper measuring optocoupler 6 into the measurement place, which causes; via control system - e.g. drawing not shown; switching on the motor 5 - which through the gears! - not shown in the picture rotates the magnet 4 and thus starts the intensive mixing of the serum ball2. When the reagent to initiate the clotting reaction is added, the control system resets and starts the electronic timer - not shown in the figure. A clot formed after some time in the test tube causes the ball 2 to stop, which is detected by the control system via optocouplers 6 and 7. Detection of a clot causes the stopwatch to stop at the value of the coagulation time to be measured. Patent Claims 1. The measuring node of the blood coagulation factor testing device, characterized by the fact that it consists of a stationary calibrated test tube (i), a ferromagnetic ball (2) placed in it, a permanent magnet. (3) and a rotating permanent magnet (4), driven by a motor (5), and measuring optocouplers (6) and (7) arranged in such a way that the ferromagnetic ball (2) performs a periodic movement forced by a variable magnetic field from magnets (3) and (4). ), transmitting alternately the upper (6) and lower (7) measuring optocoupler. 2. Knot according to claim The method of claim 1, characterized in that it comprises a control circuit for changing the magnetic field depending on the signals from the optocouplers (6) and (7). 3. The node according to claims 1. The method of claim 1, characterized in that the optocoupler (6) is infrared sensitive and the optocoupler (7) is sensitive to visible light. 1 ZOD 463/1500/87 90 Price PLN 180 PL

Claims (3)

Zastrzezenia patentowe 1. Wezel pomiarowy urzadzenia do badania czynników krzepnieciakrwi,znamienny tym, ze sklada sie znierucho¬ mej kalibrowanej probówki (i), umieszczonej w niej kulki ferromagnetycznej (2), magnesu trwalego nieruchomego (3) i magnesu trwalego wirujacego (4), poruszanego silnikiem (5) oraztransoptorów pomiarowych (6)i(7) rozmieszczonych tak, ze kulka ferromagnetyczna (2) wykonujaca ruch perio¬ dyczny wymuszonyzmiennym polemmagnetycznymod mag¬ nesów (3) i (4), przeslania przemiennie transoptor pomiaro¬ wy górny (6) i dolny (7).Claims 1. Measurement node of a device for blood coagulation tests, characterized by that it consists of a stationary calibrated test tube (i), a ferromagnetic ball (2), a permanent permanent magnet (3) and a rotating permanent magnet (4), placed therein, moved by a motor (5) and measuring optocouplers (6) and (7) so arranged that the ferromagnetic ball (2) performs a periodic motion forced by a variable magnetic field from magnets (3) and (4), transmits alternately the upper measuring optocoupler (6 ) and lower (7). 2. Wezel wedlug zastrz. 1, znamienny tym, ze zawiera uklad sterujacy zmiana pola magnetycznego, w zaleznosci od sygnalów z transoptorów (6) i (7).2. Knot according to claim The method of claim 1, characterized in that it comprises a control circuit for changing the magnetic field depending on the signals from the optocouplers (6) and (7). 3. Wezel wedlug zastrz. 1 znamienny tym, ze transoptor (6) jest czuly na podczerwien, a transoptor (7) jest czujy na swatlo widzialne. Ftg. 1 ZOD 463/1500/87 90 Cena 180 zl PL3. The node according to claims The method of claim 1, characterized in that the optocoupler (6) is infrared sensitive and the optocoupler (7) is sensitive to visible light. Ftg. 1 ZOD 463/1500/87 90 Price PLN 180 PL
PL24818384A 1984-06-13 1984-06-13 Measuring mode of an apparatus for examining blood coagulation factors PL141956B1 (en)

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PL24818384A PL141956B1 (en) 1984-06-13 1984-06-13 Measuring mode of an apparatus for examining blood coagulation factors

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PL248183A1 PL248183A1 (en) 1985-12-17
PL141956B1 true PL141956B1 (en) 1987-09-30

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