Multi-beam resonance type 2450mhz superficial hyperthermia microwave generating device

Abstract

The utility model relates to microwave physical heat therapy generating device technical field, and disclose a multi-beam resonance formula 2450MHz superficial hyperthermia microwave generating device, including medium substrate, 2450MHz main radiator C and 915MHz parallel type auxiliary radiator, both sides of E face sectorial horn waveguide radiator A all are provided with standard caliber rectangular waveguide radiator B, both sides of 2450MHz main radiator C and E face sectorial horn waveguide radiator A all are provided with excitation antenna I and excitation antenna II, 915MHz parallel type auxiliary radiator and 2450MHz main radiator C combination form spherical multi-element heating mechanism, the utility model discloses be provided with 2450MHz main radiator C and 915MHz parallel type auxiliary radiator, can make full use of 2450MHz frequency microwave penetration depth deep advantage, utilize the heat convection characteristic of the " heat rises cold drops " that the body fluid in the organization has fully simultaneously, formed the secondary heating effect to the chest, abdominal cavity internal tissue, and the fat overheating phenomenon is not easy to appear.

Description

Technical Field

[0001] This utility model relates to the technical field of microwave physical thermotherapy generating devices, specifically a multi-beam resonant 2450MHz superficial thermotherapy microwave generating device. Background Technology

[0002] Currently, in the field of microwave physical therapy technology, microwave heating equipment used for regional hyperthermia of human chest and abdominal tissues all adopt a working frequency of 915MHz or 2450MHz, with a rated output power of 60W to 200W. They use single radiator or single-frequency multi-radiator technology. Microwaves with lower frequencies have a deeper effective heating depth, while microwaves with higher frequencies have a shallower effective heating depth.

[0003] However, low-frequency microwaves are prone to causing fat overheating when heating human tissue, while high-frequency microwaves are less likely to cause fat overheating. Since regional hyperthermia usually requires 40 minutes or longer for each heating session, patients need to be in a supine position during treatment to better tolerate it. For ease of placement, the radiator is usually positioned above the treatment area. Due to the characteristics of human tissue, the subcutaneous fat on the chest and abdomen (especially the abdomen) is thicker. Therefore, when patients are in a supine position, higher-frequency microwave therapy is less likely to cause fat overheating, but the penetration depth is shallower. Lower-frequency microwave therapy has a deeper penetration depth, but a higher tendency to cause fat overheating. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a multi-beam resonant 2450MHz superficial hyperthermia microwave generator. This solves the problem that regional hyperthermia typically requires 40 minutes or more for each heating session, necessitating a supine position for patient comfort. Furthermore, the radiator is usually positioned above the treatment area for ease of placement. Due to the characteristics of human tissue, the subcutaneous fat on the chest and abdomen (especially the abdomen) is thicker. Therefore, when patients are supine, higher frequency microwave therapy results in less fat overheating but shallower penetration, while lower frequency microwave therapy results in deeper penetration but a higher tendency for fat overheating.

[0005] This utility model provides the following technical solution: a multi-beam resonant 2450MHz superficial hyperthermia microwave generator, comprising a dielectric substrate, a 2450MHz main radiator C, and a 915MHz parallel auxiliary radiator. A grounding plate is provided at the bottom of the dielectric substrate, and a conductor sheet is provided on the dielectric substrate. A feed point is provided on the conductor sheet. The 915MHz parallel auxiliary radiator includes an E-plane fan-shaped horn waveguide radiator A located in the middle, with standard-aperture rectangular waveguide radiators B on both sides of the E-plane fan-shaped horn waveguide radiator A. Excitation antennas I and II are provided on both sides of the 2450MHz main radiator C and the E-plane fan-shaped horn waveguide radiator A. The 2450MHz main radiator C is a single-aperture rectangular waveguide radiator located below the 915MHz parallel auxiliary radiator. The 915MHz parallel auxiliary radiator and the 2450MHz main radiator C combine to form a spherical multi-element heating mechanism.

[0006] Preferred technical solution 1: The excitation antenna I and the excitation antenna II arranged on both sides of the E-plane fan-shaped horn waveguide radiator A are parallel to the excitation antenna I and the excitation antenna II arranged on both sides of the 2450MHz main radiator C.

[0007] Preferred technical solution 2: The wide side of the standard aperture rectangular waveguide radiator B is parallel to the direction of the excitation antenna I set on the 2450MHz main radiator C, and the coaxial connection end of the excitation antenna II is located on the outermost side.

[0008] Compared with the prior art, this utility model provides a multi-beam resonant 2450MHz superficial hyperthermia microwave generator, which has the following beneficial effects:

[0009] (1) This utility model is equipped with a 2450MHz main radiator C and a 915MHz parallel auxiliary radiator. Since the thickness of the fat layer in the back and waist of the human body is much smaller than the thickness of the subcutaneous fat on the chest and abdomen (especially the abdomen), the 2450MHz main radiator C is located below the human body tissue. It can regionally heat the chest and abdominal tissues through the back and waist of the human body. It can make full use of the advantage of the deep penetration of 2450MHz frequency microwaves. At the same time, it can make full use of the thermal convection characteristics of the body fluid in the tissues, which are "heat rise and cold fall", forming a secondary heating effect on the internal tissues of the chest and abdominal cavities, and it is not easy for fat to overheat.

[0010] (2) The 915MHz parallel auxiliary radiator is located above the human tissue. It provides auxiliary heating to the chest and abdominal tissues through the surface of the chest and abdomen. It can make full use of the advantage of the low fat overheating tendency of 915MHz frequency microwave. Through the effect of heat radiation and heat conduction, it forms the advantage of large-area auxiliary heating. Multiple parallel 915MHz parallel auxiliary radiators are easy to position in space and can meet the needs of patients of different body types. It can very effectively perform regional heat therapy on the chest and abdominal cavities of the human body. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the E-plane sector-shaped horn waveguide radiator A of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the standard aperture rectangular waveguide radiator B of this utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the 2450MHz main radiator C of this utility model;

[0015] Figure 5 This is a schematic diagram of the combination of the 2450MHz main radiator C and the 915MHz parallel auxiliary radiator of this utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the 915MHz parallel auxiliary radiator of this utility model.

[0017] In the figure: 1. Dielectric substrate; 2. Grounding plate; 3. Conductor sheet; 4. Feed point; 5. E-plane sector horn waveguide radiator A; 6. Excitation antenna I; 7. Excitation antenna II; 8. Standard aperture rectangular waveguide radiator B; 9. 2450MHz main radiator C; 10. 915MHz parallel auxiliary radiator. Detailed Implementation

[0018] Please see Figures 1-6 ,

[0019] Example 1: A multi-beam resonant 2450MHz superficial hyperthermia microwave generator, comprising a dielectric substrate 1, a 2450MHz main radiator C9, and a 915MHz parallel auxiliary radiator 10. A grounding plate 2 is disposed at the bottom of the dielectric substrate 1. A conductor sheet 3 is disposed on the dielectric substrate 1, and a feed point 4 is disposed on the conductor sheet 3. The 915MHz parallel auxiliary radiator 10 includes an E-plane fan-shaped horn waveguide radiator A5 located in the middle. Both sides of A5 are equipped with a standard aperture rectangular waveguide radiator B8, a 2450MHz main radiator C9, and an E-plane fan-shaped horn waveguide radiator. Both sides of A5 are equipped with excitation antenna I6 and excitation antenna II7. The 2450MHz main radiator C9 is a single-aperture rectangular waveguide radiator and is located below the 915MHz parallel auxiliary radiator 10. The 915MHz parallel auxiliary radiator 10 and the 2450MHz main radiator C9 are combined to form a spherical multi-element heating mechanism.

[0020] Example 2: The difference between this example and Example 1 is that the excitation antennas I6 and II7 arranged on both sides of the E-plane fan-shaped horn waveguide radiator A5 are parallel to the excitation antennas I6 and II7 arranged on both sides of the 2450MHz main radiator C9.

[0021] Example 3: The difference between this example and Example 1 is that the wide side of the standard aperture rectangular waveguide radiator B8 is parallel to the direction of the excitation antenna I6 set on the 2450MHz main radiator C9, and the coaxial connection end of the excitation antenna II7 is located on the outermost side.

[0022] In this embodiment, since each heating session during regional hyperthermia typically takes 40 minutes or longer, patients must be in a supine position to ensure good tolerance. The radiator is usually positioned above the treatment area for ease of placement. Due to the characteristics of human tissue, the subcutaneous fat on the chest and abdomen, especially the abdomen, is thicker. Therefore, when patients are in a supine position, higher frequency microwave therapy has a lower tendency to cause fat overheating but shallower penetration depth, while lower frequency microwave therapy has a deeper penetration depth but a higher tendency to cause fat overheating.

[0023] In summary, in practical implementation, the 2450MHz main radiator C9 is designed as a rectangular aperture waveguide radiator, uses probe electrical excitation, and has a curved shape at the wide side opening to facilitate conformation with the tissues of the human back and waist.

[0024] The standard aperture rectangular waveguide radiator B8 is designed as an E-plane sector horn antenna, using probe electrical excitation. Its opening is square, and its side length is the same as the width of the standard aperture rectangular waveguide radiator B8.

[0025] The standard aperture rectangular waveguide radiator B8 also uses probe electrical excitation, with an aperture size of 220mm × 110mm.

[0026] The installation method of the 915MHz parallel auxiliary radiator 10 is as follows: the excitation antenna I6 inside the E-plane fan-shaped horn waveguide radiator A5 is parallel to the excitation antenna I6 inside the 2450MHz main radiator C9, the wide side direction of the standard aperture rectangular waveguide radiator B8 is parallel to the direction of the excitation antenna I6 inside the 2450MHz main radiator C9, and the coaxial connection end of the excitation antenna II7 is located on the outermost side.

[0027] Two standard-aperture rectangular waveguide radiators B8 can rotate by a certain angle around the side of the fan-shaped horn close to the E-plane to adapt to the curvature shape of the chest and abdomen of patients of different body types.

[0028] The 2450MHz main radiator C9 and the 915MHz parallel auxiliary radiator 10 combine to form a spherical, multi-element heating mechanism, such as... Figure 5 As shown.

[0029] To ensure the radiator's ability to heat tissues, the 2450MHz main radiator C9 requires a microwave source with a rated output power of 100W, and the 915MHz parallel auxiliary radiator 10 requires a three-channel microwave source with a total rated output power of 60W. The microwave source channel used to drive the E-plane sector horn waveguide radiator A5 requires a rated output power of 200W, and the microwave source channel used to drive the two standard aperture rectangular waveguide radiators B8 requires a rated output power of 2×125W.

Claims

1. A multi-beam resonant 2450MHz superficial hyperthermia microwave generator, comprising a dielectric substrate (1), a 2450MHz main radiator C (9), and a 915MHz parallel auxiliary radiator (10), wherein a grounding plate (2) is provided at the bottom of the dielectric substrate (1), a conductor sheet (3) is provided on the dielectric substrate (1), and a feed point (4) is provided on the conductor sheet (3), characterized in that: The 915MHz parallel auxiliary radiator (10) includes an E-plane fan-shaped horn waveguide radiator A (5) located in the middle. Standard aperture rectangular waveguide radiators B (8) are provided on both sides of the E-plane fan-shaped horn waveguide radiator A (5). Excitation antenna I (6) and excitation antenna II (7) are provided on both sides of the 2450MHz main radiator C (9) and the E-plane fan-shaped horn waveguide radiator A (5). The 2450MHz main radiator C (9) is a single-aperture rectangular waveguide radiator and is located below the 915MHz parallel auxiliary radiator (10). The 915MHz parallel auxiliary radiator (10) and the 2450MHz main radiator C (9) are combined to form a spherical multi-element heating mechanism.

2. The multi-beam resonant 2450MHz superficial hyperthermia microwave generator according to claim 1, characterized in that: The excitation antennas I (6) and II (7) arranged on both sides of the E-plane fan-shaped horn waveguide radiator A (5) are parallel to the excitation antennas I (6) and II (7) arranged on both sides of the 2450MHz main radiator C (9).

3. The multi-beam resonant 2450MHz superficial hyperthermia microwave generator according to claim 2, characterized in that: The wide side of the standard aperture rectangular waveguide radiator B (8) is parallel to the direction of the excitation antenna I (6) set on the 2450MHz main radiator C (9), and the coaxial connection end of the excitation antenna II (7) is located on the outermost side.

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