Votchala Plethysmograph

Votchala Plethysmograph: history of invention and application in medicine

Votchala Plethysmograph (1895-1971) - Soviet therapist who became famous thanks to his invention - the plethysmograph. This device was created to measure the volume of blood circulating in the capillaries. Currently, plethysmographs are used in medicine for the diagnosis and treatment of various diseases.

The history of the creation of the plethysmograph begins in the first half of the 20th century, when Votchala Plethysmograph began his research in the field of blood circulation. At that time he worked at the Leningrad Research Institute for the Therapy and Prevention of Heart Disease.

In 1928, Plethysmograph presented its first plethysmograph at the All-Union Congress of Therapists and Physiologists in Moscow. This device consisted of a cuff that was placed on a finger or other part of the body, and a graphic recorder that recorded changes in the volume of blood filling the capillaries.

Using a plethysmograph, Pletismog was able to study many aspects of blood circulation and the structure of capillaries. In addition, the device made it possible to diagnose many diseases of the cardiovascular system, such as hypertension, atherosclerosis and others. Currently, plethysmographs are used in medicine to assess the state of blood circulation, monitor the effectiveness of treatment and diagnose diseases.

However, despite all its advantages, the plethysmograph has some limitations. For example, it cannot be used to measure blood volume in large vessels and does not provide information about the speed of blood flow.

However, Votchala's invention of the Plethysmograph is of great importance for medicine and became an important step in the study of blood circulation and the treatment of cardiovascular diseases. Today, plethysmographs continue to develop and improve, which allows doctors to obtain increasingly accurate information about the state of patients’ blood circulation and the effectiveness of treatment.

Votchala Ivan Pavlovich is a Soviet therapist, the founder of Russian cardiology, one of the first in the USSR to begin a systematic study of coronary circulation as a mechanism of cardiac activity.

Votchala ensured that patients with coronary diseases could regularly visit their local doctors, get preventive care and treatment. It became easier for them to go to clinics and rest homes, where cardio-rheumatology dispensaries were established. In 1964 they appeared