JPS6041945Y2 - Forced vaporization device in pain treatment equipment for rheumatism etc. - Google Patents

Description

[Detailed explanation of the device] This device is designed to easily vaporize liquefied nitrogen, which is used as a gas source, to rapidly cool and treat affected areas such as rheumatism using low-temperature gas containing nitrogen as the main component. This invention relates to a forced vaporization device for the treatment of pain such as rheumatism, which stably supplies a targeted flow rate.

Conventionally, liquefied nitrogen (boiling point -196°C) is used for this type of treatment, and this is injected directly into the affected area in gaseous form at a temperature of around 150°C (150°C) to maintain the affected area at a level that does not cause frostbite.
There is a cooling method, but in this case, if you try to extract liquid nitrogen from the liquefied nitrogen storage tank and vaporize and expand it to obtain a stable ejection in terms of gas flow rate, the connection between the vaporizer and the liquefied nitrogen storage tank will be affected. It has the disadvantage that it takes a long time to start treatment because it takes about 3 inches for the vaporization state to stabilize because it causes spots in the air.

The present invention aims to improve the above-mentioned drawbacks, and uses a mixture of gas-liquid mixed nitrogen, which has been pressurized at a temperature lower than the appropriate temperature but naturally raised above -196°C, and oxygen at room temperature, in a vaporizer. The purpose is to adjust the gas to a stable treatment temperature by heating it with a heater, and its main structure is that the main body of the vaporizer is composed of a double tube with an outer cylinder and an inner cylinder. The end portion is connected to the mixing adjustment device, and the inner cylinder has a heater insertion chamber with one side open, and an electric heater is installed inside.

Therefore, by using the vaporizer of this invention, it is possible to produce stable vaporized gas in a short period of time, and it has the characteristics of achieving a remarkable efficiency in treatment, as well as being able to perform treatment safely and reliably at an appropriate temperature at all times. be.

Next, an embodiment of this invention will be explained with reference to the drawings.The vaporizer main body 1 is composed of a double pipe consisting of an outer cylinder 2 and an inner cylinder 3, and the outer cylinder 2 has an oxygen container 22 and a liquefied nitrogen container. 23 are connected via supply pipes 21 and 20, respectively.

The inner cylinder 3 is a tubular body of a predetermined length with one end opened at the end of the outer cylinder 2, and constitutes a heater insertion chamber 4 into which an electric heater 5 can be inserted through the opening.

The outer cylinder 2 of the vaporizer main body 1 is provided with an oxygen inlet 6 at its end, and is located at the lower end of a gas-liquid mixed nitrogen holder 16 connected to the supply pipe 20 of the liquefied nitrogen container 23 at an adjacent position. The nitrogen injection lower which connects the connecting seat body 17 is the main feature.

Further, the other end of the outer cylinder 2 is connected to a mixed gas holder 9 through a communication pipe 8 facing in the direction.

An injection cylinder 10 connected to an injection nozzle or the like is formed at the negative part of the mixed gas holder 9.

Furthermore, the outer cylinder 2 has an auxiliary warmer 11 located at its lower part.
is connected to the auxiliary warmer 11 with a connecting pipe 26.
An insertion cylinder 12 is formed in which is provided an auxiliary heater insertion chamber 13 into which an auxiliary electric heater 14 is inserted.

The auxiliary warmer 11 is also equipped with a short-circuit communication pipe 15 that directly connects the auxiliary warmer 11 to the mixed gas holder 9.

Liquid nitrogen is supplied so that the approximate composition of the mixed gas that flows through the mixed gas holder 9 from the communication pipe 8 toward the injection cylinder 10 and exits to the outside to be used for treatment is nitrogen:oxygen = 4:1. The pressure is regulated in advance by three elements: a pressure limiting valve 19 and a throttle 18 provided on the pipe 20, and a pressure regulator 24 attached to the oxygen.

Since this adjustment is only a rough example, the storage condition of the liquefied nitrogen container 23 may vary depending on the temperature of the installation location, the amount of storage in the container, etc., and the nitrogen component in the mixed gas may be too high, causing the temperature inside the mixed gas holder 9 to reach a predetermined temperature. A further decrease may also occur.

At this time, a current flows through the heater 5 by the action of the temperature sensor 25 whose temperature sensing part is inserted into the holder, warming the inside of the vaporizer main body 1 and quickly raising the temperature to a predetermined temperature.

Further, the auxiliary electric heater 14 in the auxiliary warmer 11 is always slightly heated by a weak current while the treatment device is in operation.

If the temperature drop in the mixed gas holder 9 is even more severe than the above, the warmed gas in the warmer 11 will pass through the short-circuit communication pipe 15 or the communication pipe 26 and enters the carburetor main body 1 into the connecting pipe 8
The structure is such that the mixed gas enters the mixed gas holder 9 via either or both of the above, and quickly warms the mixed gas.

According to this invention, when treating patients with pain such as rheumatism, the temperature inside the vaporizer can be stabilized at an appropriate temperature in a short time, making the treatment very convenient. The temperature can be easily adjusted to suit changes in gas temperature, and the heater inserted inside can be operated freely by the installed temperature sensor, so it can be fully automated, which is a very good practical effect.

Since the main body of the carburetor is constructed with double layers inside and outside, it is extremely strong and has the effect that the output of the heater to the heater insertion chamber can be freely controlled, making repairs and the like extremely easy.

Moreover, since this vaporizer is a simple device, it will not be damaged and has the practical effect that the equipment can be manufactured at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a sectional view showing the entire device of this invention, and FIG. 2 is an enlarged sectional view of the carburetor body. Reference numeral 1 is the carburetor main body, 2 is the outer cylinder, 3 is the inner cylinder, 4 is the heater insertion chamber, 5 is the heater, 9 is the mixed gas holder, 11
16 is an auxiliary warmer, 16 is a separator, 22 is an oxygen container, and 23 is a liquefied nitrogen container.

Claims (1)

[Scope of utility model registration request] In a forced vaporization device for a low-temperature gas generation device for treating pain such as rheumatism, in which an oxygen container and a liquefied nitrogen container are connected to a vaporizer through respective supply pipes, the vaporizer main body has an outer cylinder and an inner cylinder. The end of the outer cylinder is connected to a mixing adjustment pipe, and the inner cylinder has a heater insertion chamber with one side open, and a heater is installed inside the heater insertion chamber. A forced vaporization device for use as a pain treatment tool for rheumatism, etc., characterized in that it is equipped with a.