SU704599A1 - Apparatus for studying electric conductance of biological tissues - Google Patents
Apparatus for studying electric conductance of biological tissuesInfo
- Publication number
- SU704599A1 SU704599A1 SU782574608A SU2574608A SU704599A1 SU 704599 A1 SU704599 A1 SU 704599A1 SU 782574608 A SU782574608 A SU 782574608A SU 2574608 A SU2574608 A SU 2574608A SU 704599 A1 SU704599 A1 SU 704599A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- biological tissues
- electric conductance
- studying
- trinistor
- studying electric
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
1one
Изобретение относитс к медицине, оно может быть использовано дл определени степени обезвоживани или отечности живой ткани.The invention relates to medicine, it can be used to determine the degree of dehydration or swelling of living tissue.
Известно устройство дл исследовани электропроводимости биологических тканей, содержащее источник переменного тока, электроды и регистрирующий прибор 1.A device for studying the electrical conductivity of biological tissues is known, comprising an alternating current source, electrodes and a recording device 1.
Однако известное устройство имеет низкую точность измерений.However, the known device has a low measurement accuracy.
Целью изобретени вл етс повыщение точности исследовани степени гидрофильности тканей, путем повышени точности измерени восстановлени электропроводимости тканей.The aim of the invention is to increase the accuracy of research on the degree of hydrophilicity of tissues, by increasing the accuracy of measuring the restoration of electrical conductivity of tissues.
Дл этого в устройстве имеетс тринистор и схема запуска тринистора, причем схема запуска включена параллельно выходу источника переменного тока, выход схемы запуска соединен с управл ющим входом тринистора, а регистрирующий прибор включен последовательно с тринистором.For this, the device has a trinistor and a trigger circuit for the trinistor, the trigger circuit is connected in parallel with the output of the alternating current source, the output of the trigger circuit is connected to the control input of the trinistor, and the recording instrument is connected in series with the trinistor.
На чертеже изображена электрическа схема устройства дл исследовани электропроводности биологических тканей.,The drawing shows an electrical diagram of a device for studying the electrical conductivity of biological tissues.
Устройство дл исследовани электропроводности биологических тканей содержит источник 1 переменного тока, последовательно соединенные с ним балластный резистор 2 и нагрузочный резистор 3, электроды 4 в виде полых игл, схему 5 запуска, включенную параллельно источнику 1, и тринистор 6, последовательно включенный с регистрирующим прибором 7. Выход схемы запуска соединен с управл ющим входом тринистора 6.A device for studying the electrical conductivity of biological tissues contains an AC source 1, a ballast resistor 2 and a load resistor 3 connected in series with it, electrodes 4 in the form of hollow needles, a start circuit 5 connected in parallel with source 1, and a trinistor 6 connected in series with a recording device 7 The output of the starting circuit is connected to the control input of the trinistor 6.
Устройство работает следующим образом.The device works as follows.
Ввод т электроды в живую ткань. Включают источник 1 тока. Если электроды 4 замкнуты через ткань, тo.Эv eктpичecкa цепь состо ща из электрода 4 и резистора 3,шунтирует цепь тринистора 6 и он не включаетс под действием управл ющих импульсов, вырабатьшаемых схемой 5 запуска, вследствие наличи сопротивлени балластного резистора 2. При этом через регистрирующий прибор 7 ток не- протекает. При введеНИИ в ткань дистиллированной воды (примерно 1 ) черезодин из электродов 4 происходит нарушение электрического контакта , уменьщаетс шунтирующее действиеIntroduce electrodes into living tissue. Include a source of 1 current. If the electrodes 4 are closed through the fabric, the current circuit consisting of electrode 4 and resistor 3 shunts the circuit of the trinistor 6 and it is not activated by the control pulses produced by the starting circuit 5 due to the resistance of the ballast resistor 2. The recording device 7 does not leak. With the introduction of distilled water into the tissue (approximately 1), electrical contact is disturbed through one of the electrodes 4, the shunting effect decreases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782574608A SU704599A1 (en) | 1978-01-30 | 1978-01-30 | Apparatus for studying electric conductance of biological tissues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782574608A SU704599A1 (en) | 1978-01-30 | 1978-01-30 | Apparatus for studying electric conductance of biological tissues |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU704599A1 true SU704599A1 (en) | 1979-12-25 |
Family
ID=20746630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782574608A SU704599A1 (en) | 1978-01-30 | 1978-01-30 | Apparatus for studying electric conductance of biological tissues |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU704599A1 (en) |
-
1978
- 1978-01-30 SU SU782574608A patent/SU704599A1/en active
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