SU670299A1 - Sensor for medical studies - Google Patents
Sensor for medical studiesInfo
- Publication number
- SU670299A1 SU670299A1 SU782579151A SU2579151A SU670299A1 SU 670299 A1 SU670299 A1 SU 670299A1 SU 782579151 A SU782579151 A SU 782579151A SU 2579151 A SU2579151 A SU 2579151A SU 670299 A1 SU670299 A1 SU 670299A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sensor
- electrodes
- recorder
- medical research
- divider
- Prior art date
Links
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
Description
1one
Изобретение относитс к области медицинской техники и может быть использовано в диагностических цел х.This invention relates to the field of medical technology and can be used for diagnostic purposes.
Известен датчик дл медицинских исследований , содержащий полую иглу, элекроды и регистратор 1.A medical research sensor is known that includes a cannula, electrodes, and a recorder 1.
Однако известный датчик имеет низкую точность измерени степени рассасывани вводимого Б ткань вещества.However, the known sensor has a low accuracy of measuring the degree of resorption of the substance B introduced into the tissue.
Целью изобретени вл етс повыщение точности определени динамики рассасывани жидкости в биологических ткан х.The aim of the invention is to increase the accuracy of determining the dynamics of absorption of fluid in biological tissues.
Поставленна цель достигаетс тем, что предлагаемый датчик дл медицинских исследований имеет резистивпый делитель тока, а электроды выполнены в виде отдельных изолированных друг от друга токоотвод щих колец, размещенных на наружной поверхности полой иглы, причем каждое кольцо электрически соединено с соответствующей точкой резистивного делител , в цепь которого Последовательно включен регистратор.The goal is achieved by the fact that the proposed sensor for medical research has a resistive current divider, and the electrodes are made as separate isolated from each other lead rings placed on the outer surface of the cannula, each ring electrically connected to the corresponding point of the resistive divider, in a circuit which is consistently enabled registrar.
На чертеже представлен предлагаемый датчик дл медицинских исследований.The drawing shows the proposed sensor for medical research.
Датчик содержит полую иглу 1 с диэлектрическим слоем 2 и электродами 3, резистивный делитель 4 тока, регистратор 5 и источник 6 тока.The sensor contains a hollow needle 1 with a dielectric layer 2 and electrodes 3, a resistive current divider 4, a recorder 5 and a current source 6.
Датчик дл медицинских исследований используетс следующигл образом.The sensor for medical research is used in the following way.
При проведении исследовани полую иглу 1 ввод т в живую ткань и через ее внутреннюю полость инъецируют в ткань вещество, например дистиллированную воду . Капл введенного вещества, распредел сь равномерпо в живой ткани в виде щара, измен ет электрическое сопротивление .между электродами, которые расположены у остри иглы.During the test, the cannula 1 is introduced into living tissue and a substance, such as distilled water, is injected into the tissue through its internal cavity. A drop of the injected substance, distributed equally in the living tissue in the form of a shara, changes the electrical resistance between the electrodes, which are located at the tip of the needle.
Участки иглы, замкнутые окружающими ткан ми, шунтируют соответствующие участки резистивного делител 4 и тем самым измен ют ток, протекающий через регистратор 5. Процесс рассасывани вводимого вещества в биологических ткан х ведет к изменению электрического сопротивлени между электродами, это позвол ет определить динамику рассасывани л идкости в биологических ткан х.Needle sections closed by surrounding tissues shunt the corresponding parts of resistive divider 4 and thereby change the current flowing through the recorder 5. The resorption process of the injected substance in biological tissues leads to a change in the electrical resistance between the electrodes, this allows determining the resorption dynamics of the fluid in biological tissues.
Предлагаемый датчик дл медицинских исследований позвол ет повысить точность определени динамики рассасывани жидкости в биологических ткан х, а TaKHve уменьшить травматичность процесса исследовани .The proposed sensor for medical research allows to increase the accuracy of determining the dynamics of fluid absorption in biological tissues, and TaKHve reduces the invasiveness of the research process.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782579151A SU670299A1 (en) | 1978-01-30 | 1978-01-30 | Sensor for medical studies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782579151A SU670299A1 (en) | 1978-01-30 | 1978-01-30 | Sensor for medical studies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU670299A1 true SU670299A1 (en) | 1979-06-30 |
Family
ID=20748660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782579151A SU670299A1 (en) | 1978-01-30 | 1978-01-30 | Sensor for medical studies |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU670299A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754753A (en) * | 1981-05-12 | 1988-07-05 | Medtronic, Inc. | System for sensing electrical depolarization wave signals and their direction |
| US5928159A (en) * | 1995-03-03 | 1999-07-27 | Neothermia Corporation | Apparatus and method for characterization and treatment of tumors |
| RU2452376C2 (en) * | 2006-06-07 | 2012-06-10 | Уномедикал А/С | Instrument for introduction |
-
1978
- 1978-01-30 SU SU782579151A patent/SU670299A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754753A (en) * | 1981-05-12 | 1988-07-05 | Medtronic, Inc. | System for sensing electrical depolarization wave signals and their direction |
| US5928159A (en) * | 1995-03-03 | 1999-07-27 | Neothermia Corporation | Apparatus and method for characterization and treatment of tumors |
| RU2452376C2 (en) * | 2006-06-07 | 2012-06-10 | Уномедикал А/С | Instrument for introduction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5056517A (en) | Biomagnetically localizable multipurpose catheter and method for magnetocardiographic guided intracardiac mapping, biopsy and ablation of cardiac arrhythmias | |
| Urbanics et al. | Time course of changes of extracellular H+ and K+ activities during and after direct electrical stimulation of the brain cortex | |
| Woodbury et al. | Membrane resting and action potentials of single cardiac muscle fibers of the frog ventricle | |
| US5842998A (en) | Apparatus for determining the conductivity of blood | |
| ATE345732T1 (en) | DEVICE FOR DETERMINING THE GLUCOSE CONCENTRATION IN BODY FLUID | |
| WO1987000024A1 (en) | Apparatus for diagnosing functions of internal organs and automatic nerves | |
| US3249103A (en) | Method and apparatus for measuring bioelectronic parameters | |
| Gawne et al. | Estimating left ventricular offset volume using dual-frequency conductance catheters | |
| SU670299A1 (en) | Sensor for medical studies | |
| US5603817A (en) | pH measuring system | |
| US3841307A (en) | Subepidermal cannular instrument and method for automated determination of bleeding time and blood loss | |
| US4893625A (en) | Insertion type electrode arrangement for continuous pO2 measurement in living skin tissue | |
| RU68894U1 (en) | DEVICE FOR ASSESSING THE PARAMETERS OF BIOLOGICALLY ACTIVE POINTS | |
| SU589965A1 (en) | Sensor for investigating the dynamics of liquid resorption in biological tissues | |
| RU2134537C1 (en) | Diagnostic sensor | |
| Bielefeld et al. | Factors confounding impedance catheter volume measurements in vitro | |
| RU2106799C1 (en) | Method and device for recording data characterizing human body biologically active points state | |
| SU1512564A1 (en) | Sensor for measuring sweating | |
| SU917837A1 (en) | Polarographic sensor for determining oxygen supply of tissue | |
| RU2072826C1 (en) | Method for reflexodiagnostics of functional condition of physiological systems of organism | |
| SU1291879A1 (en) | Method of diagnosis of myocardial infarction | |
| JPH0119928Y2 (en) | ||
| SU827026A1 (en) | Device for measuring quantity of blood filler | |
| Rahi̇Mov et al. | INVESTIGATION OF TECHNICAL MEANS OF DETERMINING THE QUASI-STATIC RESISTANCE OF THE HUMAN BODY | |
| SU955901A1 (en) | Method of investigating blood circulation |