Spirograph Water

A spirograph is a device that allows you to measure the volume of air passing through a person’s lungs during breathing. It is used to diagnose lung diseases such as asthma and COPD (chronic obstructive pulmonary disease). One of the most popular types of spirograph is the water spirograph.

A water spirograph consists of a cylinder with a piston that is filled with water. As air passes through the lungs, it changes the volume of the cylinder. This change in water volume is measured using sensors that transmit data to a computer. The computer processes the data and calculates the volume of air that has passed through the lungs.

One of the advantages of a water spirograph over other types of spirographs is its accuracy. A water spirograph measures air volume more accurately than other types of spirographs, making it a more effective tool for diagnosing lung diseases.

However, the water spirograph also has disadvantages. It can be more expensive than other types of spirographs and requires special equipment to measure the volume of water. Additionally, using a water spirograph requires the patient to breathe deeply and slowly, which can be difficult for some people.

Despite these shortcomings, the water spirograph remains one of the most accurate and effective tools for diagnosing lung diseases. It is widely used in medical settings and helps doctors better understand a patient's lung condition and choose the most effective treatment.



A water spirograph is a device for measuring the volume of air passing through the respiratory tract (lat. spirillum - curl). Spirographs are also called non-invasive air flow meters. Spirometers and spirographs differ in that they breathe directly into the air stream. Airflow testers actually measure air volume without human intervention moving with the air

The structure of a water spirograph Spirographs consist of two straight tubes, into which a tube with a pressure chamber is tightly inserted. There is a distance of about half a centimeter between the tubes. The tubes gradually decrease in diameter towards the end and are connected together at the top at a level of about ten centimeters from their base using a special mark, forming a kind of “capacitor”. At the base of both tubes there are glass balls (they help secure the handles that rotate the tube), and the tubes themselves are in contact with a glass vessel containing water. Most often this is a cylinder, which must meet the requirements regarding the mandatory dimensions of the apparatus and maximum measurement tolerances. Modern spirographic devices have rubber ear cushions on top of the pipes, as well as a manual compressor. The devices are connected using a special cable to an electronic unit or automatic data reading device. On some models, the front panel of the unit contains LCD displays that display the operating parameters of the spirography machine, such as the collected volume of air in ml/minute, the respiratory rate (air in ml) during exhalation and inhalation, as well as the flow rate during inhalation. For more accurate readings of spirographic indicators, the device requires the use of a special device for simulating breathing, usually including a glass jar with a volume of 2700 ml, a plastic movable piston with a rubber replaceable cuff, and a flat gas pump for accumulating air with a capacity of 6 liters. The meaning of the procedure Using spirography, the functional state of the lungs, bronchi and trachea and the volume of inhaled and exhaled air are determined. In pathological processes, the elasticity of the lung tissue decreases and a lack of volume of inhaled and exhaled gases occurs. These processes manifest themselves in severe forms of bronchial asthma, chronic respiratory failure and pulmonary emphysema. Air measurement methods using spirometry are also used in medicine for early diagnosis and treatment of bronchiectasis, pneumonia and initial symptoms of pulmonary tuberculosis. These methods are also used to monitor the condition of the lungs in smokers. The spirographic technique allows you to perform an instant diagnosis of the performance of the lungs when inhaling and exhaling air. As a result, it becomes possible to clarify the effectiveness of inhalation therapy, identify foci lacking diffusion ability during inflammation