RU77538U1 - DEVICE FOR DETERMINING PRESSURE CREATED BY RESPIRATORY MUSCULAR AND ITS TRAINING - Google Patents

Abstract

The invention relates to medical equipment for measuring the pressure created by the respiratory muscles during exhalation and inhalation, as well as its training. The apparatus contains a sealed container 1 with a mechanical 2 and U-shaped liquid manovacuometers 4, a valve 3 for flushing and purging, which is connected to the mouthpiece 7 through an air duct 5 through a three-way valve 6. Illustrations - 3, 2 p. Of the claims

Description

The invention relates to medical equipment for measuring the pressure created by the respiratory muscles during exhalation and inhalation, as well as its training.

A device for determining the capacity of the lungs is known, containing a glass with a mouthpiece and a valve at the atmospheric end, pneumatically connected with a pressure gauge calibrated in units of volume, through a spring-loaded valve and a seat of a normally open poppet valve with a membrane equipped with a spring with a screw mechanism and with an additional tight container through a saddle of a normally open poppet valve, and a gas distribution mechanism in the form of a rod with valves, a latching rod [1].

The device has a complex structure and is designed to determine lung capacity.

A known apparatus for training the respiratory muscles, comprising an air duct with radial holes, a cylindrical spool valve with an internal cavity with radial holes, a gate return spring, a movable ball, incomplete elastic rings and rigid rotary rings [2].

The device also has a complex structure and a movable spool, which can jam, i.e. low reliability.

The purpose of the invention is the determination of the pressure created by the muscles during exhalation and inhalation and the strengthening of the cardiovascular and respiratory systems with a simple device.

The goal is achieved in that the apparatus contains a sealed container 1 with a mechanical and U-shaped liquid manovacuometers 2 and 4 and a valve 3, and which is connected through an air duct 5 through a three-way valve 6 to the mouthpiece 7.

Comparative analysis with prototypes, as well as a literature review, patent search show that there are no devices for determining the pressure created by the respiratory muscles during exhalation and inhalation.

Thus, the claimed apparatus meets the criteria of "novelty" and "significant differences".

In figure 1. depicts a stationary apparatus for determining the pressure created by the respiratory muscles during exhalation and inhalation; figure 2 - portable apparatus for the same purpose, figure 3 - portable apparatus with an elastic tight container, used to check the pressure only when exhaling.

The apparatus contains a sealed rigid or elastic container 1 with a mechanical 2 or U-shaped liquid 4 manovacuometers and a valve 3 for discharging water or air, which is connected through a flexible air duct (hose) 5 and a three-way valve 6 to the mouthpiece 7. In the apparatus with an elastic hermetic chamber the pressure gauge 2 is connected to the duct through a tee 8. An apparatus with an elastic capacity contains a pressure gauge.

The device operates as follows.

Three-way valve 6 through 90 ° rotation has four positions: I - air supply from the mouthpiece to the container; II - the container is locked, and the mouthpiece is connected to the atmosphere; III - connection of the container and the mouthpiece with the atmosphere, IV - the mouthpiece is closed, the container is connected to the atmosphere. The mouthpiece 7 is treated with alcohol, the three-way valve is set to position I, the person draws full lungs of air and exhales forcefully into the mouthpiece, the air flows through the elastic duct 5 into the container 1 and is compressed, the liquid (water) in the pressure gauge 4 rises to a height of H _and mechanical manovacuum meter 2 also shows the pressure, then the valve is set to position II and the readings are recorded. The container is purged and, in position I of the three-way valve, a strong breath is taken through the mouthpiece, while the liquid manometer shows the vacuum (vacuum) N _V , and the mechanical manovacuum meter shows a decrease in pressure below atmospheric (vacuum). When opening the valve 3, purge and rinse the container. Training of the respiratory muscles and the cardiovascular system is carried out with the partial opening of a three-way valve.

Long-term tests of the apparatus (figure 1) showed that the respiratory muscles of a person creates a maximum pressure within 70 ... 280 cm of water. AT

With a portable device, a tonometer pressure gauge can be used that measures pressure in mmHg. Translation of readings in Pa (Pascal) is carried out according to the color formula

F = ρ gH _{u in} or P = ρ _pm gH _pm,

where ρ _in = 1000 kg / m ³ - the density of water;

ρ _pm = 13550 kg / m ³ is the density of mercury;

g = 9.81 m / s ² - acceleration of gravity;

Н _u (Н _В ), Н _pm - pressure gauge readings in m.

Sources taken into account

1. USSR author's certificate No. 1450824, MKI A61V 5/08, “Device for determining lung capacity”, 1989

2. USSR author's certificate No. 1673050, MKI А61В 5/08, А61М 16/10 “Apparatus for training the respiratory muscles”, 1991

Claims (2)

1. The apparatus for determining the pressure created by the respiratory muscles and its training, containing a sealed container, pressure gauge, exhaust valve, mouthpiece with air duct, characterized in that, in order to determine the pressure during exhalation and inhalation, the container is partially filled with liquid (water) and at the bottom is a U-shaped liquid manovacuum meter, and at the top is a mechanical manovacuum meter. 2. The apparatus according to claim 1, characterized in that the process of measuring pressure and training the respiratory muscles is controlled by changing the position of the three-way valve.