SK1332014U1 - Cryogenic device for local cryotherapy - Google Patents

Abstract

The cryogenic local cryotherapy device comprises a heating cartridge (1), a Dewar vessel (2), and an electrical control panel (3), wherein the heating cartridge (1) is located inside the Dewar vessel (2) and the heating cartridge (1) is via the coupling link (9) connected to the electric control panel (3), the connecting link (9) is connected to the hose (7) and the hose opens into the nozzle (8), wherein the control panel (3) comprises a rheostat (4), a circuit breaker ( 5) the voltage and the power cable (6) and the connecting member (9) has an opening (10) in its lower part which opens into the Dewar container (2).

Description

Technical field

The technical solution concerns the area of applied cryotherapy, the device is designed for local cryotherapy treatment.

BACKGROUND OF THE INVENTION

The use of a simple therapeutic agent - cold has been known since ancient times, and in modern medicine its positive effects on the human organism are increasingly being applied.

In the field of applied cryotherapy, mostly devices are used in which the patient's body is subjected to therapy as a whole. Such devices are costly, and also costly to operate. Their disadvantage is that a patient who only needs topical treatment does not have the ability to apply the therapy locally, only to the indicated body parts.

Total cryotherapy is also not suitable for all patients. According to some authors, in view of the potential complications of cardiovascular disruption, only those who do not indicate cardiac valve failure, cardiac muscle disease or cardiac valve failure, severe exertion, painful asthma and spontaneous painful asthma, heart rhythm disorder at a rate greater than 100 / min. The effect of overall cryotherapy on the respiratory system is also essential for the safety of the method. In patients with bronchial asthma, extremely cold air or severe temperature changes may provoke bronchial contraction. Therefore, it is always necessary to individually assess the health status of a particular patient and to assess the benefits and threats arising from the use of total cryotherapy.

Local cold therapy relies on two different phenomena. In the case of local hypothermia, the cooling of damaged tissues helps inhibit the symptoms of a severe inflammatory condition, bringing the tissues into a "hibemation" state, which is intended to lessen their secondary damage due to hypoxia. It also reduces vascular permeability and leukocyte aggregation while counteracting swelling. So the cold here has an essential braking character. In the case of cryotherapy, cold is an encouraging or stimulating factor.

In this case, the effect of inadvertently increased perfusion of the cold spots is fundamentally used in the treatment, as a result of which the sustained and active blood flow promotes the healing of tissues that are in a disease state.

Currently used methods of local hypothermia include: application of ice, cooled gels, pouring cold running water, bath in cold water or use of chemical preparations. Chemical products and cooling gels are the least effective in cooling the tissues of the locomotor organs. It should be noted that ethyl chloride has only a surface anesthetic effect and is of no use in the treatment of deeper injuries. In addition, cooling induced by chemical agents requires caution due to rapidly decreasing skin temperature (frostbite) as well as the possibility of chemical scalding in case of packaging damage. When using the above-mentioned agents, the main attention should be paid to the possibility of frostbite of the skin but also to paralysis of the nerves when the cold is applied during thicker neural strains.

The essence of the technical solution

The above-mentioned shortcomings of the cryogenic devices for local therapy can be largely overcome by the cryogenic device of the present invention.

The basic goal of cryostimulation is to induce the expected reaction of the organism in the form of blood flow. This reaction is triggered by a rapid decrease in tissue temperature in the shortest possible time. Liquid, nitrogen or air is commonly used as a cooling medium in cryogenic devices.

The cryogenic device of the present invention is based on the vapor-forming liquid nitrogen vapor used for the local cryotherapy procedure.

The device contains several parts:

- heating cartridge

- Dewar vessel

- electric panel with control

- hose ended by nozzle

The heating cartridge is located inside the Dewar vessel and is connected via a link to the electrical control panel. The electrical control panel includes a rheostat to control the flow of gas, a voltage breaker, and a power cord. The connecting member between the electrical panel and the Dewar vessel includes, at its lower end, which opens into the Dewar vessel, an opening that serves to discharge vapor from the Dewar vessel. The coupling is connected to the hose and the hose opens into the nozzle, whereby the vapors from the Dewar container reach the point where cryotherapy is applied.

A dewar vessel is a vacuum bottle used to transport and store liquefied gases. The container is very sensitive to mechanical damage because its outer casing is made of aluminum. Improper handling may damage the inner flask and dewar will lose vacuum tightness.

The heating cartridge is designed for use in the temperature range up to 750 ° C for power density up to 40 W / cm ² . The cartridge has a special elongated shape. In a side view, the heating cartridge comprises an elongated rod that is hollow and is rigidly connected at one end to an expanded end and has a screw end at the other end. The extended end forms a cover for the heater wires that are located inside the rod. The cover can be made of not cut. The rod is wrapped inside with insulation and there is a seal around the heating conductors. The screw termination is located in the part where the heating cartridge is connected to the connecting element and serves to connect the heating cartridge and the connecting element. The heating cartridge is shown in Figures 2, 3 and 4.

The High Density cartridge has the technical parameters listed in the table below:

power density power working temperature up to 40 W / cm2 (recommended) 315w max. 750 st. C diameter tolerance

-0.01 -0.06 mm power tolerance + 5% -10% internal thermocouple insulated

The cartridge is capable of operating at high operating temperatures, has a high specific performance, long service life and is mechanically resistant.

The generation of nitrogen vapor takes place inside the dewar vessel, and is caused by the heating of the cartridge. The hose provides insulation while directing the vapors outwards from the container to the desired application area. The hose can be made of non-cutting material and can be up to 1.5 m long, with special external insulation, with mirelon and leatherette. The nozzle ensures correct flow of fumes from the hose.

The connection of the individual parts of the device is shown on 0BR.1.

The operating temperatures of the local cryotherapy device range from -110 ^° C to -130 ° C, thus enabling an effective treatment outcome to be achieved in a short time. The advantage is also the design of the device, which is simple and allows easy manipulation and control of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1: Identification of individual parts of the cryogenic device

FIG. 2: Heating cartridge, cross-sectional view

FIG. 3: Heating cartridge, bottom expanded end with cover and heating conductors, side view

FIG. 4: Heating cartridge, top end, top view

Example of technical solution

In the exemplary embodiment, a cryogenic device is provided which includes a heating cartridge, a Dewar vessel 2 and an electric control panel 3, wherein the heating cartridge I is located within the Dewar vessel 2, and the heating cartridge 1 is connected to the electrical panel 3 with The electrical control panel 3 comprises a rheostat 4, a voltage circuit breaker 5, a power cable 6 and a connecting element 9, which comprises at its lower part that opens into the Dewar. container 2 opening 10.

The heating cartridge 1 has a special elongated shape, in a side view the heating cartridge 1 comprises an elongated rod 12 which is fixed at one end to the extended end 13 and is located at the other end in the part where the heating cartridge I connects to the connecting element 9 The elongated rod 12 is hollow and comprises inside the heating conductors 14 wrapped with a seal 15, and the inside 12 is wrapped with insulation 16. The cryogenic device is used such that liquid nitrogen is used in the device and is vaporized by heating the heating cartridge inside.

The dewar vessel 2. In the dewar vessel 2, a pressure is generated by which nitrogen vapor flows through the opening 10 and the intermediate element 9 through the hose 7 and through the nozzle 8 to the intended location.

The overall dimensions of the cryogenic device without Dewar vessel 2 are:

Width - 200 mm;

Length -150 mm;

Height - 800 mm;

Other parameters of the local cryotherapy device:

the weight of the device does not exceed 2 kg; (without Dewar vessel 2) power consumption: up to 315 W;

mains voltage - 220-230 V;

frequency - 50/60 Hz;

Sound pressure - less than 70 dBa;

Dewar vessel 2 parameters:

volume in L: 40.1 weight of container without filling in kg: 14.5 throat diameter in mm: 58 total container height in mm: 760 total container diameter in mm: 460

Nozzle 8 is made of material PE 1000 with dimensions: total nozzle height 280 mm, total nozzle width 30 mm, nozzle hole diameter 5mm.

The heating cartridge 1 has a diameter of 16 mm and an overall length of 640 mm. The device operates at 230 V (metric) and 240 V (inch), and has a power of 315W.

The extended end 13 of the cartridge has an AISI 304 stainless steel sheath, and the heating conductors inside the extended end are of Ni-Cr 80-20 wire, and are insulated with a densified magnesium oxide (MgO) seal 15. The outlet of the 250 mm device is sealed, with a silicone impregnated glass fiber for insulation 16.

The operating temperatures of the device start at -90 ° C and are reached in 2 to 3 minutes.

During the procedure the temperature inside the device reaches -135 ° C.

The liquid nitrogen consumption per procedure does not exceed 1 kg.

Industrial usability

Cryotherapy is effective in first aid for severe damage to the musculoskeletal system (muscles, tendons, soft joint structures and many others) and in the rehabilitation process.

The device for local cryotherapy is widely used in sports medicine and physiotherapy, but also in rheumatology and orthopedics.

The cosmetic industry uses the dermatological effects of cryotherapy to improve blood circulation and reduce toxins from the body.

Claims (3)

Cryogenic device for local cryotherapy, characterized in that the device comprises a heating cartridge (1), a Dewar container (2) and an electric control panel (3) with control, the heating cartridge (1) being located inside the Dewar container (2), and the heating cartridge (1) is connected via a connecting member (9) to an electric control panel (3), and the connecting member (9) is connected to a hose (7) and the hose opens into a nozzle (8), wherein the electric panel (3) ) with control comprises a rheostat (4), a voltage circuit breaker (5), a mains cable (6) and a link (9) comprising at its bottom a mouth (10) opening into the Dewar vessel (2). The cryogenic device for local cryotherapy according to claim 1, characterized in that the heating cartridge (1) has a special elongated shape, in a side view the heating cartridge (1) comprises an elongated rod (12) which is fixed at one end to an extended end ( 13) and at the other end located in the part where the heating cartridge (1) connects to the connecting member (9) a screw end (11), the rod (12) being hollow and comprising inside the heating conductors (14) wrapped with a seal ( 15), and from the inside the rod (12) is wrapped with insulation (16), The cryogenic device for local cryotherapy according to claim 1 or claim 2, characterized in that liquid nitrogen is used in the Dewar vessel (2).