SU590665A1 - Method of investigating - Google Patents

Method of investigating

Info

Publication number
SU590665A1
SU590665A1 SU762324231A SU2324231A SU590665A1 SU 590665 A1 SU590665 A1 SU 590665A1 SU 762324231 A SU762324231 A SU 762324231A SU 2324231 A SU2324231 A SU 2324231A SU 590665 A1 SU590665 A1 SU 590665A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phase
coagulation
blood
blood plasma
investigating
Prior art date
Application number
SU762324231A
Other languages
Russian (ru)
Inventor
Виктория Викторовна Каменская
Юрий Петрович Никитин
Анатолий Викторович Столяров
Нина Владимировна Федорченко
Original Assignee
Новосибирский государственный медицинский институт
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Новосибирский государственный медицинский институт filed Critical Новосибирский государственный медицинский институт
Priority to SU762324231A priority Critical patent/SU590665A1/en
Application granted granted Critical
Publication of SU590665A1 publication Critical patent/SU590665A1/en

Links

Landscapes

  • Investigating Or Analysing Biological Materials (AREA)

Description

Изобретение относитс  к области медицины, а именно к исследованию биологических сред, например крови, и может быть использовано дл  получени  информации о физиологическом состо нии организма и патологических процессов, происход щих в нем.The invention relates to the field of medicine, namely to the study of biological media, such as blood, and can be used to obtain information about the physiological state of the organism and the pathological processes occurring in it.

Известен сиособ исследовани  процесса свертывани  крови, заключающийс  в том, что в пробу сыворотки крови добавл ют хлористый кальций и регистрируют изменение в зкости иолучеиной сыворотки :.A known method for studying the process of blood coagulation is that calcium chloride is added to a blood serum sample and the change in viscosity of the i-ray serum is recorded:.

Однако известный способ не обеспечивает выеокой точиости исследовани .However, the known method does not provide accurate research.

Целью изобретени   вл етс  повышение точиости исследовани  путем уменьшени  искаже )ий ироцесса свертывани .The aim of the invention is to increase the accuracy of the study by reducing the distortion of the coagulation process.

Это достигаетс  тем, что регистрацию изменений в зкости иронзвод т по измерению теплопроводности сыворотки.This is achieved by recording the changes in viscosity of the iron by measuring the thermal conductivity of the serum.

Пример. В кювету тромбоэластографа заливают плазму крови в разведении физиологическим раствором при соотношеиии 1 : 10 в объеме 0,15 мл. Кюветупомещают в вод ную баню. Микротерморезистор, нанример, типа МТ-64 погружают в кювету до соприкосновени  с поверхностью разведени  илазмы крови . Затем в кювету заливают хлористый кальций в концентрации 0,0277 в объеме 0,15 мл и производ т измерени  с помощью мостовой схемы.Example. Blood plasma is diluted with a saline solution at a ratio of 1:10 in a volume of 0.15 ml into a cuvette of a thromboelastograph. Ditch in water bath. A microthermistor resistor, such as the MT-64 type, is immersed in a cuvette until it comes into contact with the surface of the dilution of blood plasma. Calcium chloride is then poured into the cuvette at a concentration of 0.0277 in a volume of 0.15 ml and measured using a bridge circuit.

В процессе свертываип  системы сопротивление микротерморезистора измен етс , что сказываетс  на величине тока разбаланса моста . В измерительной диагонали мостовой схемы возникают изменени  иаир жени , которые после усилени  дифференциальным усилителем регистрируют на самописце.In the process of coagulation of the system, the resistance of the microdistor resistor changes, which affects the magnitude of the current unbalance of the bridge. In the measuring diagonal of the bridge circuit, iaire changes occur, which, after amplification by a differential amplifier, are recorded on a recorder.

На чертеже изображена термограмма, отражающа  процесс свертывани  плазмы крови в разведеиии 1 : 10 с СаСЬ.The drawing shows a thermogram reflecting the process of coagulation of blood plasma in a dilution of 1: 10 with CAC.

Крива  показывает характерные фазы реакции .The curve shows the characteristic reaction phases.

I фаза составл ет 30-40 сек, она характеризуетс  резким падепием сопротивлепи  терморезистора и соировождаетс  экзотермическим эффектом.Phase I is 30-40 seconds, it is characterized by a sharp increase in the resistance of the thermistor and has an exothermic effect.

Продолжительность II фазы колеблетс  в более широком временном интервале и дл  плазм крови различных больных составл ет 120-420 сек. Эта фаза характеризуетс  структурными изменени ми исследуемой системы , вызывающими нарушение тенлового баланса , но не оказывающими существенного вли ни  на тепловые свойства системы в целом . Зубцы кривой демонстрируют изменени  степени дисиерсионноети системы и нос т флуктуациониый характер. Эта фаза реакции отражает врем  и особенности свертывани  плазмы крови до момента образовани  фибрина .Phase II duration varies over a wider time interval and for blood plasma of different patients is 120-420 sec. This phase is characterized by structural changes in the system under study, which cause a violation of the tenel balance, but do not have a significant effect on the thermal properties of the system as a whole. The teeth of the curve demonstrate changes in the degree of the system's dissierce system and are of fluctuation nature. This phase of the reaction reflects the time and features of blood plasma coagulation until the formation of fibrin.

III фаза - активное превращение фибриногена в фибрин. Длительность фазы 90- 120 сек. Эта фаза реакцнн сопровождаетс  резким снижением конвективной составл ющей теплообмена в результате возрастани  в зкости среды. В этой фазе наблюдаетс  изменение коэффициента теплоотдачи на 15- 20%.Phase III - active conversion of fibrinogen to fibrin. The duration of the phase is 90-120 seconds. This phase of the reaction is accompanied by a sharp decrease in the convective component of heat exchange as a result of an increase in the viscosity of the medium. In this phase, a change in the heat transfer coefficient by 15-20% is observed.

Предлагаемый способ нсследовани  свертывающей системы крови обесиечивает больщую точность измерений благодар  исключению механического воздействи  на процеес свертывани  крови и повышает чувствительность в результате иомещени  микротерморезистора с высоким температурным коэффициентом сопротивлени  на границе раздела фаз свертывани  и за счет учета измен ющейс  конвективной составл ющей теплообмена.The proposed method of investigating the blood coagulation system provides greater measurement accuracy by eliminating the mechanical effect on the blood coagulation process and increases the sensitivity as a result of the placement of a microresistor with a high temperature coefficient of resistance at the coagulation phase interface and by taking into account the variable convective heat transfer component.

Claims (1)

1. Патент США № 3836333, кл. G 01N 11/10, 1974.1. US patent No. 3836333, cl. G 01N 11/10, 1974. Шфаза Icpajo I сраза Жсразо I § Л. ipaja IcpajaShfaz Icpajo I right away Zsrazo I § L. ipaja Icpaja
SU762324231A 1976-02-11 1976-02-11 Method of investigating SU590665A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762324231A SU590665A1 (en) 1976-02-11 1976-02-11 Method of investigating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762324231A SU590665A1 (en) 1976-02-11 1976-02-11 Method of investigating

Publications (1)

Publication Number Publication Date
SU590665A1 true SU590665A1 (en) 1978-01-30

Family

ID=20648833

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762324231A SU590665A1 (en) 1976-02-11 1976-02-11 Method of investigating

Country Status (1)

Country Link
SU (1) SU590665A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332110A2 (en) * 1988-03-07 1989-09-13 Snow Brand Milk Products Co., Ltd. Method for measurement of viscosity change in blood or blood plasma and sensor therefor
US6101449A (en) * 1995-06-07 2000-08-08 Akzo Nobel N.V. Method for predicting the presence of congenital and therapeutic conditions from coagulation screening assays
US6321164B1 (en) 1995-06-07 2001-11-20 Akzo Nobel N.V. Method and apparatus for predicting the presence of an abnormal level of one or more proteins in the clotting cascade
US6429017B1 (en) 1999-02-04 2002-08-06 Biomerieux Method for predicting the presence of haemostatic dysfunction in a patient sample
US6502040B2 (en) 1997-12-31 2002-12-31 Biomerieux, Inc. Method for presenting thrombosis and hemostasis assay data
US6898532B1 (en) 1995-06-07 2005-05-24 Biomerieux, Inc. Method and apparatus for predicting the presence of haemostatic dysfunction in a patient sample
US7179612B2 (en) 2000-06-09 2007-02-20 Biomerieux, Inc. Method for detecting a lipoprotein-acute phase protein complex and predicting an increased risk of system failure or mortality
US7211438B2 (en) 1999-02-04 2007-05-01 Biomerieux, Inc. Method and apparatus for predicting the presence of haemostatic dysfunction in a patient sample

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332110A2 (en) * 1988-03-07 1989-09-13 Snow Brand Milk Products Co., Ltd. Method for measurement of viscosity change in blood or blood plasma and sensor therefor
US6101449A (en) * 1995-06-07 2000-08-08 Akzo Nobel N.V. Method for predicting the presence of congenital and therapeutic conditions from coagulation screening assays
US6269313B1 (en) 1995-06-07 2001-07-31 Akzo Nobel N.V. Method for predicting the presence of congenital and therapeutic conditions from coagulation screening assays
US6321164B1 (en) 1995-06-07 2001-11-20 Akzo Nobel N.V. Method and apparatus for predicting the presence of an abnormal level of one or more proteins in the clotting cascade
US6564153B2 (en) 1995-06-07 2003-05-13 Biomerieux Method and apparatus for predicting the presence of an abnormal level of one or more proteins in the clotting cascade
US6898532B1 (en) 1995-06-07 2005-05-24 Biomerieux, Inc. Method and apparatus for predicting the presence of haemostatic dysfunction in a patient sample
US6502040B2 (en) 1997-12-31 2002-12-31 Biomerieux, Inc. Method for presenting thrombosis and hemostasis assay data
US6429017B1 (en) 1999-02-04 2002-08-06 Biomerieux Method for predicting the presence of haemostatic dysfunction in a patient sample
US7211438B2 (en) 1999-02-04 2007-05-01 Biomerieux, Inc. Method and apparatus for predicting the presence of haemostatic dysfunction in a patient sample
US7179612B2 (en) 2000-06-09 2007-02-20 Biomerieux, Inc. Method for detecting a lipoprotein-acute phase protein complex and predicting an increased risk of system failure or mortality

Similar Documents

Publication Publication Date Title
Trudnowski et al. Specific gravity of blood and plasma at 4 and 37 C
SU590665A1 (en) Method of investigating
Webster et al. New approach to cystic fibrosis diagnosis by use of an improved sweat-induction/collection system and osmometry.
Danielsson et al. Determination of serum urea with an enzyme thermistor using immobilized urease
Steim Differential thermal analysis of protein denaturation in solution
Keily et al. Thermometric titration curves
EP0594773A1 (en) Portable glucose sensor
DE3782715D1 (en) METHOD FOR DETERMINING THE CONCENTRATION RATIO OF LITHIUMIONS TO SODRIUMIONS AND DEVICE FOR CARRYING OUT THIS METHOD.
Rehak et al. Prospective applications of calorimetry in the clinical laboratory.
Danon et al. An instrument for automatically recording the osmotic fragility curve of red cells and/or its derivative
Lythgoe The activity of lactate dehydrogenase in cadaver sera: a comparison of different sampling sites
SU1744650A1 (en) Method for determination of osmolarity of blood serum and device
SU1157456A1 (en) Method of investigating process of blood coagulation
Wilson Measurement of electrical conductivity for clinical purposes
SU1406469A1 (en) Method of determining thermophysical characteristics
Parker et al. A transcutaneous pO2 electrode incorporating a thermal clearance local blood flow sensor
EP0423235A4 (en) Improved biosensor and the method of its use
Goyan et al. A study of thermoelectric methods for determining isotonicity
SU1446571A1 (en) Method of determining ceruloplasmin in blood
SU1160293A1 (en) Method of checking graphite structure in cast iron
SU537288A1 (en) Method for determining thermal conductivity of solids
SU1377734A1 (en) Method and apparatus for determining defficiency of circulating blood
Fieschko et al. Kinetics of viscosity changes in sickle hemoglobin solutions
SU1117512A1 (en) Method of determination of thermal physical characteristics of hard materials
SU672552A1 (en) Substance thermophysical property measuring device