CN115554610A - Petal type cavity radiator - Google Patents
Petal type cavity radiator Download PDFInfo
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- CN115554610A CN115554610A CN202211332219.2A CN202211332219A CN115554610A CN 115554610 A CN115554610 A CN 115554610A CN 202211332219 A CN202211332219 A CN 202211332219A CN 115554610 A CN115554610 A CN 115554610A
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- outer conductor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/02—Radiation therapy using microwaves
- A61N5/022—Apparatus adapted for a specific treatment
- A61N5/025—Warming the body, e.g. hyperthermia treatment
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Abstract
A petal type cavity radiator comprises an inner conductor, an outer conductor and a shell, wherein the lower end of the inner conductor is connected with a radio frequency connector, the outer side of the inner conductor is provided with an insulator, the lower end of the insulator is connected with the radio frequency connector, and the upper part of the insulator is provided with a protruding section; the outer conductor is arranged outside the insulator, the upper part of the outer conductor is provided with long lobes and short lobes which are distributed in a staggered manner and protrude outwards, and the protruding section of the inner conductor is matched with the space structure formed by the long lobes and the short lobes of the outer conductor; the shell is installed outside the outer conductor. According to the petal type cavity radiator, the diameter of the upper part of the outer conductor is increased, reflection is reduced, heating efficiency is improved, the petal type staggered resonance output is adopted, a thermal field is more uniform, front-end radiation can be realized, and the treatment effect and the application range are effectively improved; the outer conductor adopts petal type coupling output, and has small diameter, light weight and convenient operation and use.
Description
Technical Field
The present invention relates to the field of medical devices.
Background
Tumor thermotherapy, which is a method for raising the temperature of the whole body or tumor tissues (local) by various methods and treating malignant tumors by utilizing the heat action and secondary effects thereof, is the fifth therapy after surgery, radiotherapy, chemotherapy and immunotherapy and is a green treatment means.
Tumor thermotherapy, based on modern science, was activated in the early 60's of the 20 th century and had many breakthrough advances. A large number of in vitro experiments and clinical data show that the tumor thermotherapy has obvious synergistic and supplementary effects on tumor treatment means such as chemotherapy, radiotherapy and operation, although the tumor thermotherapy can not replace the operation, the chemotherapy or the radiotherapy as an independent tumor treatment scheme. Because of this, tumor hyperthermia has been rapidly developed in recent years, and has become another important tumor treatment means following surgery, radiotherapy, chemotherapy, and biotherapy.
As shown in figure 1, an outer conductor 6 is installed in an insulator 2, an inner conductor 9 is installed in the outer conductor 6, a short-circuit sheet 16 is installed between the outer conductor 6 and the inner conductor 9, a 1/4 wavelength radiation hole 15 is longitudinally formed in the outer conductor 6, a shell 10 is arranged outside the outer conductor, the cavity radiator adopts a radio frequency connector with the diameter of 26mm, a 26mm outer conductor and a 1/4 wavelength slot type coupling output are used for short-circuiting the inner conductor and the outer conductor, and radiation is realized by using the microwave transmission characteristic of a 1/4 short-circuit line equivalent open circuit. The radiator has large volume, and the diameter of the home external insulation reaches more than 30 mm. The weight is large, the radio frequency connector 1 is large, and the cable is thick and hard and is inconvenient to operate and use; because the inner and outer conductors are in short circuit connection, the front end has no radiation, so that the treatment range is limited; due to the slot output, the surrounding thermal field is not uniform.
Disclosure of Invention
In order to solve the problems of the existing cavity radiator, the invention provides a petal-type cavity radiator.
The technical scheme adopted by the invention for realizing the purpose is as follows: a petal type cavity radiator comprises an inner conductor 9, an outer conductor 6 and a shell 10, wherein the lower end of the inner conductor 9 is connected with a radio frequency connector 1, an insulator 2 is arranged on the outer side of the inner conductor 9, the lower end of the insulator 2 is connected with the radio frequency connector 1, and a protruding section is arranged on the upper portion of the insulator 2; the outer conductor 6 is arranged outside the insulator 2, the upper part of the outer conductor 6 is provided with outer conductor long lobes 8 and outer conductor short lobes 7 which are distributed in a staggered way and protrude outwards, and the protruding section of the inner conductor 6 is matched with the space structure formed by the outer conductor long lobes 8 and the outer conductor short lobes 7 of the outer conductor 6; the housing 10 is mounted outside the outer conductor 6.
The inner conductor 9 in the protruding section of the insulator 2 is the inner conductor spiral vibrator 3 with a spiral structure.
The lower end of the insulator 2 is fixedly connected with a radio frequency connector 1, the outer side of the lower end of the insulator 2 is provided with a connecting thread 4, and the lower end of the outer conductor 6 is connected with the insulator 2 in a threaded manner; the outer side of the lower end of the outer conductor 6 is provided with a shell fixing thread 5, and the lower end of the shell 10 is in threaded connection with the outer conductor 6.
The outer conductor 6 further comprises an upper outer conductor long petal 12 and an upper outer conductor short petal 11, the upper ends of the arc-shaped upper outer conductor long petal 12 and the upper outer conductor short petal 11 are fixedly connected, the upper outer conductor long petal 12 and the upper outer conductor short petal 11 are installed on the upper portion of the protruding section of the inner conductor 9, the upper outer conductor long petal 12 and the upper outer conductor short petal 11 are installed in a staggered and inserted mode with a lower outer conductor long petal 13 and a lower outer conductor short petal 14 of the outer conductor 6, and the upper outer conductor long petal 12, the upper outer conductor short petal 11, the lower outer conductor long petal 13 and the lower outer conductor short petal 14 are fixed on the protruding section of the insulator 2 through screws.
According to the petal type cavity radiator, the diameter of the upper part of the outer conductor is increased, reflection is reduced, heating efficiency is improved, the petal type staggered resonance output is adopted, a thermal field is more uniform, front-end radiation can be realized, and the treatment effect and the application range are effectively improved; the outer conductor adopts petal type coupling output, and has small diameter, light weight and convenient operation and use.
Drawings
Fig. 1 is a structural view of a conventional cavity radiator.
Fig. 2 is a structural diagram of an inner conductor of a petal-shaped cavity radiator according to an embodiment of the present invention.
Fig. 3 is a structural diagram of an outer conductor of a petal-shaped cavity radiator according to an embodiment of the present invention.
Fig. 4 is a view of a petal type cavity radiator casing according to an embodiment of the present invention.
Fig. 5 is an overall structure diagram of a petal-shaped cavity radiator according to an embodiment of the present invention.
Fig. 6 is a structural diagram of an inner conductor of a two-petal type cavity radiator according to an embodiment of the present invention.
Fig. 7 is a structural diagram of an outer conductor of a two-petal type cavity radiator according to an embodiment of the present invention.
Fig. 8 is an overall structure diagram of a two-petal type cavity radiator according to an embodiment of the present invention.
In the figure: 1. the radio frequency connector comprises a radio frequency connector, 2, an insulator, 3, an inner conductor spiral vibrator, 4, a connecting thread, 5, a shell fixing thread, 6, an outer conductor, 7, an outer conductor short lobe, 8, an outer conductor long lobe, 9, an inner conductor, 10, a shell, 11, an upper outer conductor short lobe, 12, an upper outer conductor long lobe, 13, a lower outer conductor long lobe, 14, a lower outer conductor short lobe, 15, a 1/4 wavelength radiation hole, 16 and a short-circuit piece.
Detailed Description
In the first embodiment, as shown in fig. 2 to 5, the petal type cavity radiator includes an inner conductor 9, an outer conductor 6, and a housing 10, where a lower end of the inner conductor 9 is connected to a radio frequency connector 1, an insulator 2 is disposed outside the inner conductor 9, a lower end of the insulator 2 is fixedly connected to the radio frequency connector 1, an upper portion of the insulator 2 is provided with a protruding section, and the inner conductor 9 in the protruding section of the insulator 2 is an inner conductor spiral vibrator 3 with a spiral structure; the outer conductor 6 is arranged on the outer side of the insulator 2, the outer side of the lower end of the insulator 2 is provided with a connecting thread 4, the lower end of the outer conductor 6 is in threaded connection with the insulator 2, the upper part of the outer conductor 6 is provided with an outer conductor long petal 8 and an outer conductor short petal 7 which are distributed in a staggered manner and protrude outwards, the protruding section of the inner conductor 6 is matched with a space structure formed by the outer conductor long petal 8 and the outer conductor short petal 7 of the outer conductor 6, and the outer conductor long petal 8 and the outer conductor short petal 7 are fixed on the protruding section of the insulator 2 through screws; a shell 10 is arranged on the outer side of the outer conductor 6, a shell fixing thread 5 is arranged on the outer side of the lower end of the outer conductor 6, and the lower end of the shell 10 is in threaded connection with the outer conductor 6. The portion of the inner conductor 9 located within the raised section of the insulator 2 is helical, improving heat radiation. The staggered coupling output and the electromagnetic wave resonance output are formed between the inner conductor 9 and the petal-type outer conductor 6 of the radiator, the diameters of the upper parts of the outer conductor 6 and the inner conductor 9 are increased, the microwave impedance transformation reduces the refraction, and the radiation signals are radiated to the air from the coaxial line in a transition way to realize the thermal therapy of the focus part. The front-end heating radiation is realized, and the radiation heat is more uniform.
In the second embodiment, as shown in fig. 6-8, the petal-type cavity radiator includes an inner conductor 9, an outer conductor 6, and a housing 10, where the lower end of the inner conductor 9 is connected to the radio frequency connector 1, an insulator 2 is disposed outside the inner conductor 9, the lower end of the insulator 2 is fixedly connected to the radio frequency connector 1, and the upper portion of the insulator 2 is provided with a protruding section; the outer conductor 6 is arranged on the outer side of the insulator 2, the outer side of the lower end of the insulator 2 is provided with a connecting thread 4, the lower end of the outer conductor 6 is in threaded connection with the insulator 2, the outer conductor 6 comprises an upper outer conductor long petal 12 and an upper outer conductor short petal 11, the upper ends of the arc-shaped upper outer conductor long petal 12 and the upper outer conductor short petal 11 are fixedly connected, the upper outer conductor long petal 12 and the upper outer conductor short petal 11 are arranged on the upper part of the convex section of the inner conductor 9, the upper outer conductor long petal 12 and the upper outer conductor short petal 11 are arranged with the lower outer conductor long petal 13 and the lower outer conductor short petal 14 of the outer conductor 6 in a staggered and inserting manner, and the upper outer conductor long petal 12, the upper outer conductor short petal 11, the lower outer conductor long petal 13 and the lower outer conductor short petal 14 are fixed on the convex section of the insulator 2 through screws; a shell 10 is arranged on the outer side of the outer conductor 6, a shell fixing thread 5 is arranged on the outer side of the lower end of the outer conductor 6, the lower end of the shell 10 is connected with the outer conductor 6 in a threaded mode, and the shell is the same as the first embodiment. The staggered coupling output is formed between the radiator inner conductor 9 and the petal-type outer conductor 6, the electromagnetic wave resonance output is realized, the diameters of the upper parts of the outer conductor 6 and the inner conductor 9 are increased, the microwave impedance transformation reduces the refraction, and the radiation signal is radiated to the air from the coaxial line transition, so that the focus part is uniformly heated. The inner conductor 9 and the outer conductor 6 are made of red copper or red copper silver plating materials.
The cavity radiator adopts a 16mm microwave connector, adopts a 10mm outer conductor and a 18mm staggered petal type coupling output, the diameter of the insulator 2 is as small as 22mm, the weight is reduced by 2/3, and the diameter of the inner conductor (radio frequency cable) is reduced from 13mm to 5mm, thereby bringing great convenience to the use. The petal type radiator replaces the big end up and small end down of the radius, the reflection is reduced, the emission efficiency is improved, and the petal type staggered resonance output is adopted, so that the 1/4 wavelength of the inner conductor is inserted into the outer conductor 6, the thermal field is very uniform, the front end radiation can be realized, and the treatment effect and the application range are effectively improved.
The present invention has been described in terms of embodiments, and it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. The utility model provides a petal formula chamber way radiator which characterized in that: the radio frequency connector comprises an inner conductor (9), an outer conductor (6) and a shell (10), wherein the lower end of the inner conductor (9) is connected with a radio frequency connector (1), an insulator (2) is arranged on the outer side of the inner conductor (9), the lower end of the insulator (2) is connected with the radio frequency connector (1), and a protruding section is arranged on the upper part of the insulator (2); the outer conductor (6) is arranged on the outer side of the insulator (2), the upper part of the outer conductor (6) is provided with long lobes (8) and short lobes (7) of the outer conductor which are distributed in a staggered way and protrude outwards, and the protruding section of the inner conductor (6) is matched with the space structure formed by the long lobes (8) and the short lobes (7) of the outer conductor (6); a shell (10) is arranged outside the outer conductor (6).
2. A petaloid cavity radiator according to claim 1, characterized in that: and the inner conductor (9) in the protruding section of the insulator (2) is an inner conductor spiral vibrator (3) with a spiral structure.
3. A petaloid cavity radiator according to claim 1, characterized in that: the lower end of the insulator (2) is fixedly connected with a radio frequency connector (1), the outer side of the lower end of the insulator (2) is provided with a connecting thread (4), and the lower end of the outer conductor (6) is in threaded connection with the insulator (2); the outer side of the lower end of the outer conductor (6) is provided with a shell fixing thread (5), and the lower end of the shell (10) is in threaded connection with the outer conductor (6).
4. A petal radiator according to claim 1, wherein: the outer conductor (6) further comprises an upper outer conductor long petal (12) and an upper outer conductor short petal (11), the upper end of the arc-shaped upper outer conductor long petal (12) is fixedly connected with the upper end of the upper outer conductor short petal (11), the upper outer conductor long petal (12) and the upper outer conductor short petal (11) are installed on the upper portion of the protruding section of the inner conductor (9), the upper outer conductor long petal (12) and the upper outer conductor short petal (11) are installed with the lower outer conductor long petal (13) and the lower outer conductor short petal (14) of the outer conductor (6) in a staggered and inserted mode, and the upper outer conductor long petal (12), the upper outer conductor short petal (11), the lower outer conductor long petal (13) and the lower outer conductor short petal (14) are fixed on the protruding section of the insulator (2) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211332219.2A CN115554610A (en) | 2022-10-28 | 2022-10-28 | Petal type cavity radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211332219.2A CN115554610A (en) | 2022-10-28 | 2022-10-28 | Petal type cavity radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115554610A true CN115554610A (en) | 2023-01-03 |
Family
ID=84768531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211332219.2A Pending CN115554610A (en) | 2022-10-28 | 2022-10-28 | Petal type cavity radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115554610A (en) |
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2022
- 2022-10-28 CN CN202211332219.2A patent/CN115554610A/en active Pending
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