SU146905A1 - Photoplethysmography method - Google Patents
Photoplethysmography methodInfo
- Publication number
- SU146905A1 SU146905A1 SU739621A SU739621A SU146905A1 SU 146905 A1 SU146905 A1 SU 146905A1 SU 739621 A SU739621 A SU 739621A SU 739621 A SU739621 A SU 739621A SU 146905 A1 SU146905 A1 SU 146905A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- photoplethysmography
- blood
- transducer
- recording
- light
- Prior art date
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
В известных способах фотоплетизмографни отраженным и рассе нным светом сказываетс вредное вли ние степени насыщенности крови кислородом, что искажает действительный характер плетизмограм.мы.In the known methods of photoplethysmography with reflected and scattered light, the harmful effect of the degree of blood saturation with oxygen affects, which distorts the actual character of plethysmogram.
В предлагаемом способе дл устранени указанного недостатка регистрацию физиологических процессов, происход щих в кровеносных сосудах, ведут в области спектра, близкой к инфракрасной.In the proposed method for eliminating this deficiency, the registration of physiological processes occurring in the blood vessels is carried out in the spectral region close to infrared.
На чертеже покпзана блок-схема плетизмографа дл иллюстрации предлагаемого способа фотоплетизмографии.The drawing shows a block diagram of a plethysmograph to illustrate the proposed photoplethysmography method.
Блок-схема содержит: регистрирующее устройство /, усилитель и блок питани 2, преобразователь (фотодатчик) 3 светового потока, источник света 4.The block diagram contains: a recording device /, an amplifier and a power supply unit 2, a luminous flux converter (photo sensor) 3, a light source 4.
Источник света 4 и преобразователь 5 светового потока к электрический сигнал располагают р дом или концентрично (на чертеже не показано ) и разделены непрозрачной перегородкой. Изменени кровенаполнени исследуемой ткани 5 вли ют на интенсивность отраженного света, поступающего на преобразователь 5 светового потока (например, фотоэлемент). Электрический сигнал с преобразовател поступает на усилитель, и усиленный сигнал подаетс на регистрирующее устройство / дл регистрации, при этом спектральна характеристика преобразовател светового потока исключает вли ние колебаний насыщенности крови кислородом на регистрацию полезного сигнала, так как регистраци физиологических процессов в кровеносных сосудах .ведетс в области спектра, близкой к нфракрасной. The light source 4 and the transducer 5 of the light flux to the electrical signal are arranged side by side or concentrically (not shown) and separated by an opaque partition. Changes in the volume of blood in the test tissue 5 affect the intensity of the reflected light entering the transducer 5 of the light flux (for example, a photocell). The electrical signal from the transducer is fed to an amplifier, and the amplified signal is fed to a recording device / for recording, while the spectral characteristic of the luminous flux transducer eliminates the effect of fluctuations in blood oxygen saturation on the registration of the useful signal, since recording physiological processes in blood vessels. spectrum close to infrared.
Предложенный способ может быть применен в научно исследовательских институтах физиологического, клинического и гигиенического прсфул , на кафедрах терапии, грудной-хирургии,, невропатологии, отоларингологии , а также в больницах дл . диагностики заболевании сердс ,Нг-:.-сосудистой и нервно системы.-The proposed method can be applied in scientific research institutes of physiological, clinical and hygienic fields, in the departments of therapy, thoracic surgery, neuropathology, otolaryngology, as well as in hospitals for long. diagnosis of heart disease, Ng -: .- vascular and neurological systems.-
Я9 146905Я9 146905
Предмет изобретени Subject invention
Способ фотоплетизмографии отраженным и рассе нным светом,, отличающийс тем, что, с целью исключени вредного вли ни степени насыщенности крови кислородом, искажающим действительный характер илетизмограммы, регистрацию физиологических процессов, происход щих в кровеносных сосудах, ведут в близкой к инфракрасной, области спектра..A method of photoplethysmography with reflected and scattered light, characterized in that, in order to eliminate the harmful effect of the degree of blood saturation with oxygen, distorting the actual character of the itismogram, the recording of physiological processes occurring in blood vessels takes place in the near-infrared spectral region.
. л. l
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU739621K SU146906A1 (en) | 1961-07-14 | 1961-07-14 | Photoplethysmography device |
| SU739621A SU146905A1 (en) | 1961-07-14 | 1961-07-14 | Photoplethysmography method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU739621A SU146905A1 (en) | 1961-07-14 | 1961-07-14 | Photoplethysmography method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782682400A Addition SU860112A2 (en) | 1978-11-09 | 1978-11-09 | Device for teaching and checking knowledge of students |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU146905A1 true SU146905A1 (en) | 1961-11-30 |
Family
ID=48302330
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU739621A SU146905A1 (en) | 1961-07-14 | 1961-07-14 | Photoplethysmography method |
| SU739621K SU146906A1 (en) | 1961-07-14 | 1961-07-14 | Photoplethysmography device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU739621K SU146906A1 (en) | 1961-07-14 | 1961-07-14 | Photoplethysmography device |
Country Status (1)
| Country | Link |
|---|---|
| SU (2) | SU146905A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817623A (en) | 1983-10-14 | 1989-04-04 | Somanetics Corporation | Method and apparatus for interpreting optical response data |
| US5140989A (en) | 1983-10-14 | 1992-08-25 | Somanetics Corporation | Examination instrument for optical-response diagnostic apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2028261C (en) * | 1989-10-28 | 1995-01-17 | Won Suck Yang | Non-invasive method and apparatus for measuring blood glucose concentration |
-
1961
- 1961-07-14 SU SU739621A patent/SU146905A1/en active
- 1961-07-14 SU SU739621K patent/SU146906A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817623A (en) | 1983-10-14 | 1989-04-04 | Somanetics Corporation | Method and apparatus for interpreting optical response data |
| US5140989A (en) | 1983-10-14 | 1992-08-25 | Somanetics Corporation | Examination instrument for optical-response diagnostic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| SU146906A1 (en) | 1961-11-30 |
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