DE8427439U1 - Device for the low-temperature treatment of rheumatic diseases - Google Patents

Description

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DR.ING. HANS LIGHTI
.-ing. HEiNER LiCnTi

DlPUPHYS. DR. RER, NAT. JOST LEMPERT TEL.! (07 21) 4 it 11

Kirschenmann, Günter ¹⁷ September 1984

Buchenstrasse 9 7359/84-Lj

D-7507 Pfinztal 1

Device for the low-temperature treatment of rheumatic diseases

The invention relates to a device for the low temperature treatment of rheumatic Diseases, consisting of a liquid gas insulating container, one on top of it Opening attached closure with a cooling gas channel, a connected, heat-insulated treatment hose with mouthpiece and a Evaporation device for the liquid gas.

Recent medical research has shown that rheumatic Illnesses a pain relief and improved mobility, even a cure can be achieved by the fact that the sick Body parts with low temperature are treated, including low temperature vapors liquid gases are used, which are directed in the form of a weak jet on the body parts to be treated. In general, because of its absolute harmlessness and unlimited miscibility with the ambient air liquid nitrogen used, which is housed in an insulated container is and is evaporated out of this.

Devices are known from practice in which the to achieve a flow necessary increased evaporation rate is achieved by the fact that directly at '

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the liquid gas heated air or hot air is blown in and the deep tempef ^ Ufdämpf is taken via a hose line, which is usually several meters long. This mode of operation assumes that before the hot air enters the Container a dryer is arranged, which reduces the air humidity to a minimum in order to prevent ice formation inside the container or in the pipes impede. The drying of air to a moisture content of 0% is only possible with an extraordinarily high expenditure on equipment, which is unacceptable Leads to initial costs for these devices. One must therefore limit oneself to dryers that do not completely remove the air humidity allow with the result that it will at least after some operating time Freezing and disruption is coming. Another problem is that from the "boiling" liquid gas always get droplets into the steam atmosphere, which are then carried away with the low-temperature steam. Kick this Liquid gas droplets from the mouthpiece of the handling hose, so can they cause burns on the patient's body surface. To this to avoid long treatment hoses are used, which also not be guided in a straight line to allow the droplets to evaporate or to deposit in the treatment tube and then to evaporate.

The invention is based on the object of creating a device «in which the Evaporation of the liquid gas is possible without any ice formation and that Leakage of liquid gas droplets with the treatment jet is avoided.

This task is based on a device of the structure described at the beginning initially supplied to a partial solution in that the evaporation device consists of a. is formed via a heated immersion line.

The invention thus turns away from the previous mode of operation of a direct one Heat exchanges between a heated heat transfer medium and the liquefied gas and instead suggests a heater that is installed in the insulating container itself

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is arranged and via an immersion line from the outside with the necessary Energy is supplied. Since no more air is brought into the container, there is no ice formation and the resulting malfunctions.

The heater is preferably an electrical heating device with power control. The heating device can be formed, for example, from a heating cartridge, a tubular heater or a similar resistance heater, the power of which can be regulated in a simple manner via the power supply, so that the evaporation rate can be adjusted without difficulty.

Instead , the heater can also be formed from a heat exchanger with a fluid heat transfer medium, hot air or thermal oils being possible as heat transfer medium. Here, however, the heat transfer medium does not come into contact with the liquid gas, so that malfunctions cannot occur here either.

To further solve the problem of the invention it is provided that a droplet separator is arranged in front of the inlet side of the cooling gas channel facing the insulating container , which separates any liquid gas droplets that may be entrained from the steam atmosphere before the low-temperature steam enters the cooling gas channel and from there into the treatment hose .

For example, the droplet separator can guide surfaces or guide channels for Have deflection of the cooling gas flow, with any droplets that may be entrained being deposited during the deflection movement.

In an advantageous embodiment, the droplet separator consists of one Formed pipe socket, which is opposite to the cooling gas channel, the end facing the container is closed and its wall sloping Has bores whose inlet opening is higher than that

outlet openings opening into the pipe socket on the inside.

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J The vapor flowing upwards from the liquid gas surface is

Entry into the bores of the pipe socket initially downwards and at the exit from the bores in the pipe socket in turn deflected upwards, with the droplets are deposited either outside or inside the pipe socket. As far as they are deposited within the pipe socket they get to the sealed bottom of the pipe socket and are there gradually evaporated. This prevents liquid droplets from getting into the Cooling gas channel and thus can get into the treatment hose.

M It is advantageously provided that the droplet separator only enters the neck of the

{Ι Isoliei'behälters protrudes and is arranged at a distance from the neck wall.

Ι This means that the droplet separation takes place at the highest point of the insulating container

and immediately before the steam enters the cooling gas duct.

Further details and advantages of the invention emerge from the following Description of an embodiment shown in the drawing. In the drawing show:

Figure 1 is a schematic view of the device and

FIG. 2 shows an enlarged detail in the area of the container

neck.

The treatment device shown in Figure 1 consists of an insulating container 1 for a liquid gas, e.g. B. liquid nitrogen, an attached to the neck 2 closure 3 and a not shown, thermally insulated Treatment hose connected to the connector 4 on the closure 3 Is and through which the low-temperature steam reaches the treatment site.

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The Behsndl ungsschl not shown also has a mouthpiece for this purpose for the exchange of the low-temperature steam. Inside the breech 3 a cooling gas or low-temperature steam channel 5 is arranged through which the Cryogenic steam from the insulating container 1 enters the treatment hose.

The Isolierbehäl ter 1 also has a pressure relief valve 6 on the closure 3 Control pressure gauge 7 and a filler neck 8. The shutter 3 is tight screwed onto the insulating container 1 or otherwise fixed in a gas-tight manner.

Inside the container 10 there is a heater 10 carried by the closure 3, which in the illustrated embodiment is designed as a heating cartridge and is arranged directly in the area of the bottom of the insulating container 1. the Heater 10 is supplied with power via an immersion line 11 and a connection 9 on the closure. Furthermore, a level meter 12 is arranged inside the insulating container 1, which shows the maximum and minimum levels on a control device outside of the insulated container.

In front of the entry of the cooling gas channel 5 at the closure 3 is a droplet separator arranged, which protrudes into the neck 2 of the insulating container 1 in the illustrated embodiment. The separator exists in the illustrated embodiment from a pipe socket 14 which is closed at its end facing the container interior with a base 15. The wall of the pipe socket 14 has a plurality of bores 16 which run obliquely downward and inward from the outside and which follow the bores 16 formed on the liquid gas surface upwardly flowing low-temperature steam inside the neck 2 first downward and then deflect upward again, the droplets primarily be deposited inside the neck 2 and outside of the tubular socket 14.

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The pipe socket 14 maintains a sufficiently large distance from the on all sides Inner wall of the container neck 2 and is also with a plurality of bores 16 in order to avoid excessive throttling of the steam flow.

Claims (7)

PATENTANV & LTB '• ■ ■ * ff · I «ft I · DR.ing. HANS LICHTI ran .MP MFIMFR I ΙΓΜΤΙ 0 ^ 7500 KARLSRUHE 41 (GRÖTZINGEN) DIPL-ING. HEINER LICHTI through QlPL-PHYS. DR. RER. NAl. JOST LEMPERT TEU: (07 21) 4 8511 September 17, 1984 Kirschenmann, Günter 7359/84-Lj Buchenstrasse 9 D-7507 Pfinztal 1 claims for protection 1. Device for the low-temperature treatment of rheumatic diseases, destined from a liquid gas insulating container, a closure placed on its opening with a cooling gas duct, one connected to it, heat-insulated treatment hose with mouthpiece and one Evaporation device for the liquid gas, characterized, that the evaporation device consists of a down to the ground level area the insulating container (1) reaching, supplied via a dip line (11) Heater (10) is formed. 2. Apparatus according to claim 1, characterized in that the heater (10) is an electric heater with power control. 3. Apparatus according to claim 1, characterized in that the heater (10) is formed from a heat exchanger with a fluid heat transfer medium. 4. Apparatus according to any one of claims 1 to 3, characterized in that before the inlet side © of the cooling gas duct (5) facing the insulating container (1) a droplet separator (13) is arranged. Il I I 1 I. " 1
ι II ι 7359/84-L] 5. Apparatus according to one of claims 1 to 4, characterized in that the Droplet separator (13) guide surfaces or guide channels (16) for deflection the cooling gas flow has. 6. Apparatus according to one of claims 1 to 5, characterized in that the droplet separator (13) is formed from a pipe socket (14) which is closed at its end opposite the cooling gas duct (5) and facing the container (1) and its wall selling at an angle
Has bores (16), -whose inlet opening is higher than the inside tig in the pipe socket (14) opening outlet openings. 7. Apparatus according to any one of claims 1 to 6, characterized in that the Droplet separator (13) only in the neck (2) of the insulating container (1) protrudes and is arranged at a distance from the neck wall.