SU545329A1 - Device for determining the functional state of biological tissue - Google Patents
Device for determining the functional state of biological tissueInfo
- Publication number
- SU545329A1 SU545329A1 SU2112485A SU2112485A SU545329A1 SU 545329 A1 SU545329 A1 SU 545329A1 SU 2112485 A SU2112485 A SU 2112485A SU 2112485 A SU2112485 A SU 2112485A SU 545329 A1 SU545329 A1 SU 545329A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- biological tissue
- determining
- functional state
- frequency
- change
- Prior art date
Links
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
трансформатор 2. Сигналы генераторов / и 4 подаютс .на смеситель 5, с которого фильтром 6 выдел етс ситнал частоты биений между колебани ми генераторов 1 н 4. Этот сипзал затем усилизаетс усилителем 7. Изменение емкости биоткани влечет нз менение частоты измерительного генератора /. Частота генератора 4 остаетс неизменной. Она перестраиваетс лишь дл изменени диапазона носледуемой емкости биоткани. Ограничитель 8 создает ам.плитуду сигнала «а неизменном урозне , исключа вли лие сопротивлени на величину изменени ем;ко;сти объекта. Таким обpaaOiM , измерение разностей частоты ри соответствующей калибровке позвол ет выделить на регистрирующем приборе 9 изменение емкости биоткаии.transformer 2. Signals of generators (and 4) are fed to mixer 5, from which filter 6 extracts the frequency signal of the beat frequency between oscillations of generators 1 and 4. This sipal is then amplified by amplifier 7. Changing the capacity of the biotissue leads to a change in the frequency of the measuring generator. The frequency of generator 4 remains unchanged. It is rebuilt only to change the range of the biological tissue wearable capacity. The limiter 8 creates an amperage for the signal and a constant danger, eliminating the effect of resistance on the magnitude of the change; Thus, measuring the difference in frequency with the appropriate calibration, allows a change in the biotcaia capacitance to be detected on the recording device 9.
Использование высокочастотного трансфо)матора в качестве .колебательного контура позвол ет обеспечить «жесткую св зь с объектом (коэффициент трансформации 1:1). Применение в цепи обратной св зи измери тельного генератора усилител тока дает В:0зможность подавать на исследуемый участок биоткани достаточно малое напр жение, что позвол ет сохранить ее жизнеспособность, дава возможность осуществить с-гепрерывную автоматическую регистрацию общего уровн физиологического состо ни биоткани.The use of a high-frequency transformer as an oscillatory circuit allows for a "hard link with the object (transformation ratio of 1: 1). The use of a measuring amplifier of a current amplifier in the feedback circuit enables V: 0 the ability to supply a sufficiently small voltage to the biotissue area under investigation, which allows it to maintain its viability, making it possible to perform c-continuous automatic recording of the overall level of the physiological state of the biotissue.
Устройство позвол ет получить более точные характеристики состо ни биоткани и дает возможность выделить изменение емкости в динамическом диапазоне физиологического процесса без вли ни омического сопротивлени , что позвол ет детально диагностировать флзи,ко-.химические сдвиги, структурные перестройки , св занные с метаболическими процес сами, а также с локальным возбуждением и тораюжением отдельных групп «леток.The device allows one to obtain more accurate characteristics of the biological tissue state and makes it possible to isolate the change in capacity in the dynamic range of the physiological process without affecting the ohmic resistance, which allows a detailed diagnosis of flzi, co-chemical shifts, structural changes associated with metabolic processes, as well as with local excitement and toraution of certain groups of tapes.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2112485A SU545329A1 (en) | 1975-03-13 | 1975-03-13 | Device for determining the functional state of biological tissue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2112485A SU545329A1 (en) | 1975-03-13 | 1975-03-13 | Device for determining the functional state of biological tissue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU545329A1 true SU545329A1 (en) | 1977-02-05 |
Family
ID=20612416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2112485A SU545329A1 (en) | 1975-03-13 | 1975-03-13 | Device for determining the functional state of biological tissue |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU545329A1 (en) |
-
1975
- 1975-03-13 SU SU2112485A patent/SU545329A1/en active
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