RU1810061C - Evaporator for volatile anesthetics - Google Patents

Abstract

Usage: medical equipment, in particular in devices for inhalation anesthesia. SUMMARY OF THE INVENTION: increasing the degree of saturation of the gas with anesthetic vapor and more precise control of the flow rate through the thermostatic valve. This is achieved by placing in the cavity of the evaporation chamber with an annular gap a cup with a wick on the outer surface and two through grooves in the lower part, as well as by providing the wick chamber with an additional gas channel and the mutual arrangement of the gas channels, the grooves and the vapor removal channel. 2 ill.

Description

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This, together with more precise control of the flow rate through the valve of the temperature regulator, due to its fixing in the plate of the latter with the possibility of axial movement, provides higher accuracy of subsidizing anesthetics.

 SUMMARY OF THE INVENTION The invention will be explained by a description of a specific example of the implementation of an anesthetic vaporizer and by drawings, which show a structural diagram of HcnapMte / ifl anesthetics - in Fig. 1, and a section along A-A - in Fig. 2.

The evaporator contains a housing 1, a concentration control valve 2, with an inlet 3 and an outlet 4 nozzles, a wick cylindrical evaporation chamber 5, representing the space (annular gap) between the wick 6, mounted on the inner surface of the housing 1 and the wick 7, mounted on the outer surface in the inner cup-8, installed concentrically in the cavity of the chamber 5 with an annular gap to the housing 1. At the bottom of the inner cup 8

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There are two diametrically located grooves 9 and 10. The evaporation chamber 5 has a main 11 and an additional 12 gas channels for supplying fresh gas and an L-shaped channel 13 for venting vapors from the evaporation chamber 5, 5

The axes of the outlet openings of the gas channels 11 and 12 communicated with the annular gap of the evaporation chamber 5 are located opposite in the diametrical plane of the chamber 5, and the vertical axis of the L-shaped channel 10 coinciding with the axis of the chamber 5. and the axis of its horizontal section are located in said diametrical plane with respect to which grooves 9 and 10 are offset by 90 °. , Ж-, -: - у- 15

A valve 15 is mounted in the inlet 14 of the vapor withdrawal channel 13, which is mounted on the thermal compensator plate 16 with the possibility of axial movement. The used valve 15 is axisymmetric and 20 is provided $ to bend it along .b e i w H j on which it, & Qri & et rynv (-. To calibrate the steam flow through | |: without can;; 13 р; |

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(Satisfaction: r4za,: Bte; kaidU4ero through gas channels; 11.12, the pair of Myaneste Shka is realized due to the fact that the wicks 6, 7 are lowered by the lower ends: in the liquid anesthetics and due to the capillary effect 55 are constantly in a wet state The gas flowing into the chamber 5 propagates through the slotted channel formed by

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closely spaced wicks 6, 7 in the direction of the grooves 9, 10, rotated relative to the gas channels 11,12 by an angle of 90 °, and then flows in the inner glass 8 towards the inlet section 14 of the vapor removal channel 13. The indicated mutual arrangement of the gas channels 11, 12, the grooves 9, 10 and the inlet 14 of the vapor removal channel 13 ensures uniform symmetrical flow of gas around the wicks 6, 7 and its full saturation with anesthetic vapor.

The possibility of changing the position of the valve 15 along the inlet section 14 of the vapor exhaust channel 13 by axial movement of the valve 15 allows increasing the accuracy of the metering due to the preliminary adjustment of the temperature compensator.

Claims (1)

Ensuring complete saturation of the gas flowing through the wick chamber 5 with anesthetic vapor due to an increase in vaporization due to the introduction of the wick 7 fixed on the inner glass 8 and the uniform flow around H. and i V, t; az b, 7, caused by pl CirtpVfp eliWeM of the above channels and thyroid gland, as well as the possibility of more accurate adjustment of the temperature compensator And determine a higher accuracy of the anesthetic. V Claims An anesthetics evaporator containing a housing, a wick cylindrical evaporation chamber 6 with a gas channel and a vapor entrainment channel communicated with an anesthetics vapor control valve and thermo-KOMnewcatop with a valve installed in the vapor channel of the vaporization chamber, about- due to the fact that, in order to increase the accuracy of dosing of anesthetics, an additional gas channel is made in the evaporation chamber and a glass with a wick is installed on its outer surface and two diametrically opposite through grooves in its lower part, the axis of the outlet openings of the gas channels in communication with the annular gap are opposite in the diametrical plane of the chamber, the vapor exhaust channel is L-shaped and its vertical axis coincides with the axis of the chamber and the axis of its horizontal section are in said diametrical plane, relative to which the grooves are offset by 90 °, while the valve is fixed with the possibility of axial movement in the plate of the temperature compensator. d-4 shh