SYSTEMIC CRYOTHERAPY DEVICE WITH ENGINE ROOM ASSEMBLY

Abstract

The subject of the invention is a device for systemic cryotherapy with an engine room assembly (22) comprising a cryochamber and the engine room assembly (22), which comprises an upper inlet channel housing (8), which is connected, on the bottom, to a ventilation fitting housing (1) connected, on the bottom, to a heat exchanger (2) housing, wherein a cryogenic liquid supply (19) and cryogenic liquid vapour discharge (20) system is located on the side wall, and the lower flange of the heat exchanger (2) is connected to the lower outlet channel housing (3), and the device is connected to a power supply system, characterised in that the upper inlet channel housing (8) is L-shaped, and a duct fan (15) is located in the ventilation fitting housing (1), wherein a heater (9) is located between the ventilation fitting (1) and the heat exchanger (2).

Claims

1. Device for systemic cryotherapy with an engine room assembly comprising a cryochamber and an engine room assembly of the cryochamber, which comprises an upper inlet channel housing (8), which is connected, on the bottom, to a ventilation fitting housing (1) connected, on the bottom, to a heat exchanger housing (2), wherein, on the side wall, a cryogenic liquid supply and cryogenic liquid vapour discharge system is located, and the lower flange of the heat exchanger (2) is connected to the lower outlet channel housing (3) and to the side wall of the engine room assembly, and the device is connected to the power supply system, characterised in that the upper inlet channel housing (8) is L-shaped, and a duct fan (15) is located in the ventilation fitting housing (1), wherein a heater (9) is located between the ventilation fitting (1) and the heat exchanger (2).

2. The engine room assembly according to claim 1, characterised in that, inside the lower outlet channel housing (3), a guide vane (4) is located.

3. The engine room assembly according to claims 1 to 2, characterised in that, on the lower outlet channel exit (3a), specifically on its damper (3b), a Pt100 temperature sensor in stainless steel housing (5) is located.

4. The engine room assembly according to claims 1 to 3, characterised in that the Pt100 temperature sensor is mounted on the chamber housing using a Pt100 mounting sleeve (7), passing through the walls of the lower outlet channel housing (3).

5. The engine room assembly according to claims 1 to 4, characterised in that, on the side wall of the lower outlet channel housing (3), an oxygen concentration control system is located inside the cryogenic chamber (23), connected to the engine room assembly of the cryochamber with a copper pipe (11).

6. The engine room assembly according to claims 1 to 5, characterised in that, one end of the copper pipe (11) connecting the oxygen concentration control system (23) to the lower outlet channel housing (3) passes through the wall of the lower outlet channel housing (3), wherein this end is bended in the direction of the channel axis according the direction of airflow.

7. The engine room assembly according to claim 6, characterised in that, on the copper pipe (11), an externally insulated heating cable (6) is wound, and the other end of the copper pipe is connected to the gas detector module (10) of the oxygen concentration control system (23), which module is located in the measuring box (12).

8. The engine room assembly according to claims 6 to 7, characterised in that the measuring box (12) is connected directly to the transverse blower (14), which is fixed to the side wall of the measuring box (12) from the outside of the heat exchanger (2).

9. The engine room assembly according to claims 6 to 8, characterised in that, the measuring box (12) is connected directly to the transverse blower (14) through an opening in the side wall of the measuring box (12).

10. The engine room assembly according to claims 1 to 9, characterised in that, the oxygen concentration control system (23) is connected with a cable to a control and alarm module (23) and to a chamber operation control system located in the upper electrical box (28).

Description

[0005] The embodiments of the subject of the invention are shown on the drawings, on which:

[0006] FIG. 1 is a view of the engine room,

[0007] FIG. 2 is a partial cross-sectional view of the oxygen concentration control system,

[0008] FIG. 3 presents elements of the cryogenic system, as well as assembling and location of the fan,

[0009] FIG. 4 is an isometric view of the engine room showing the shape of the housing, FIG. 4 presents a method of placing the Pt100 on the damper (in a cross-section),

[0010] FIG. 5 presents a method of bending of the measuring pipe,

[0011] FIG. 6 presents a cryochamber with the engine room system, wherein: 27—a damper of the lower outlet channel, 29—a metal sheet supporting the main monitor, 30—a lower fuse box, 31—an engine room module laminate, 32—a support structure of the engine room, 33—shielding of the chamber module laminate, 34—a chamber module laminate.

EXAMPLE 1

Engine Room System Design

[0012] The cryochamber engine room 22 is comprised of the upper channel L 8, connected, on the bottom, to the VENT-HE ventilation fitting 1, inside which a duct fan 15 is located, forcing the circulation of cold air flow. The lower part of the ventilation fitting is connected to the heat exchanger 2, wherein, in the space between the fitting and the exchanger pack, a heater 9 is located, which is mounted in a specially prepared mounting opening in the housing of the exchanger. The lower flange of the heat exchanger is connected to the lower outlet channel 3, in which a guide vane 4 is located, for the purpose of properly dividing and distributing the cooled air inside the chamber. Additionally, on the exit from the lower outlet channel, particularly on its damper, a Pt100 temperature sensor in a stainless steel housing 5 is located, responsible for measuring and controlling the temperature in the chamber, wherein, in order to place the sensor inside the chamber, a Pt100 mounting sleeve 7 was designed and used, which passes through the channel walls from the right side. In order to provide liquid nitrogen to the exchanger, a cryogenic power supply system 19 was designed and installed in the heat exchanger, the main elements of which are cryogenic electrovalves 18. Nitrogen in gaseous state is discharged through the discharge system 20, into which a Pt100 mounting sleeve 21 has been welded, connected to the Pt100 guiding sleeve 17 and ending with a cable gland. In this sleeve, a Pt100 temperature sensor is mounted in a ceramic housing 16, measuring the temperature of nitrogen vapours exiting the exchanger system, in order to control the heat exchange quality between the evaporating liquid nitrogen and the circulating air.

[0013] The oxygen concentration control system 23 inside the cryogenic chamber is mounted on the side wall of the upper channel L. It is comprised of a gas detector 10, whose sensor module is located in the measuring box 12, connected to the copper pipe 11 with wound and externally insulated heating cable 6. The other end of the copper pipe is located in the lower outlet channel, wherein it should be noted that this end is bended in the direction of the channel axis in such a way that the air circulating inside the chamber spontaneously (passively) flows into the copper pipe and into the measuring box. A transverse blower 14 connected to the measuring box and fixed to its right side wall from the outside is an additional element providing an appropriate flow of the sampled air, wherein an opening was made, allowing drawing out the sampled air. The gas detector is connected to the control and alarm module 13 provided to cooperate with the gas detector and the chamber operation control system, which, in case of detecting a too low or too high concentration of oxygen in the atmosphere inside the cryochamber, will activate an alarm mode in the device allowing the patient to safely exit the chamber. The system is powered by a dedicated power supply located in the control cabinet of the device, which powers the sensor at all times when the chamber is activated.