Gynecological millimeter wave therapeutic apparatus

Abstract

The application discloses a gynecological millimeter wave therapeutic instrument, which comprises a host computer, an antenna mechanism connected with the host computer, the antenna mechanism comprising sequentially connected circular waveguide, millimeter wave antenna and antenna protective cover, the host computer and the antenna mechanism being connected along the same axial direction. The host computer comprises a millimeter wave source and a wave form conversion and attenuation device, the wave form conversion and attenuation device comprising an attenuation unit and a wave form conversion unit integrated into one mechanism, the attenuation unit being connected with the millimeter wave source through a flange, the wave form conversion unit being connected with the circular waveguide, the attenuation unit being adapted to attenuate the millimeter wave power emitted by the millimeter wave source to a target value, and the wave form conversion unit being adapted to convert the field type of the millimeter wave after power attenuation from TE10 wave in the rectangular waveguide into circular polarization wave in the circular waveguide, so as to provide the required millimeter wave output power for the millimeter wave antenna. The gynecological therapeutic instrument can perform accurate irradiation treatment in the gynecological cavity, and can ensure a larger millimeter wave adjustment range without changing the millimeter wave source.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a gynecological millimeter wave therapeutic instrument. BACKGROUND

[0002] Gynecological diseases are common diseases in women, including inflammatory diseases, tumor diseases and functional disorders, etc. The existing gynecological therapeutic instrument mainly relies on the strong radio electromagnetic field generated by the equipment to produce a thermal effect on the human body part for treatment. However, this treatment mechanism has the disadvantage of "treating the symptoms but not the root cause", and also produces hazards that cannot be ignored.

[0003] Since millimeter waves can penetrate the epidermis of the organism to act on the deep tissue, they can resonate with biological macromolecules such as proteins and RNA to affect and regulate the process of life activities. The millimeter wave therapeutic instrument produces a series of biological effects by resonance with the cells of the human body through a specific oscillation frequency, and obtains various treatment effects. Therefore, millimeter waves can be used to effectively treat gynecological diseases.

[0004] The existing millimeter wave therapeutic instrument generally has a large diameter and volume, and cannot be used for targeted treatment in the gynecological cavity. Moreover, the existing millimeter wave therapeutic instrument generally cannot adjust the power. Since the existing millimeter wave therapeutic instrument uses a series connection of attenuators and waveform transformers, if an attenuator is added to realize power adjustment, the size of the millimeter wave system will be much larger than the actual requirement, which cannot be used in actual treatment, especially for the narrow gynecological cavity.

[0005] Therefore, there is a need for a gynecological millimeter wave therapeutic instrument with a suitable diameter and volume, which can effectively treat gynecological parts, improve the antenna and waveform transformation and attenuation structure while reducing the size of the instrument, ensure the millimeter wave radiation power, and ensure the treatment effect, so as to solve the technical problems existing in the prior art. SUMMARY

[0006] In view of the above problems, in order to reduce the diameter and volume of the gynecological millimeter wave therapeutic instrument and meet the requirement of miniaturization of medical devices, the present application is proposed to provide a gynecological millimeter wave therapeutic instrument which overcomes the above problems or at least partially solves the above problems.

[0007] According to one aspect of the present application, a gynecological millimeter wave therapeutic instrument is provided, comprising a host, an antenna mechanism connected with the host, the antenna mechanism comprising a waveguide, a millimeter wave antenna and an antenna protective cover connected in sequence, the host and the antenna mechanism being connected along the same axial direction, the host comprising a millimeter wave source and a wave shape transformation and attenuation device, the wave shape transformation and attenuation device comprising an attenuation unit and a wave shape transformation unit arranged integrally, the attenuation unit being connected with the millimeter wave source through a flange, the wave shape transformation unit being connected with the waveguide, the attenuation unit being adapted to attenuate the millimeter wave power emitted by the millimeter wave source to a target value, and the wave shape transformation unit being adapted to transform the field pattern of the millimeter wave power after attenuation from TE10 wave in a rectangular waveguide into circular polarization wave in a circular waveguide, so as to provide the millimeter wave antenna with required millimeter wave output power.

[0008] The gynecological millimeter wave therapeutic instrument can reduce the diameter and volume of the instrument penetrating into the gynecological cavity according to the characteristics of the narrow space in the gynecological cavity, can directly act on the lesion site, and can achieve precise and controllable treatment effect. Moreover, the instrument can solve the technical problems of the mismatch between the antenna and the protective medium impedance in the existing millimeter wave therapeutic instrument and the large volume of the wave shape transformation and attenuation device, can greatly reduce the volume of the device by integrating the wave shape transformation unit and the attenuation sheet in one device, can ensure a larger adjustment range of the millimeter wave power attenuation amount by matching and optimizing the shape, thickness and other parameters of the antenna protective cover and the wave shape transformation unit through numerical simulation without changing the power source, can reduce the energy loss of the millimeter wave while protecting the antenna, and is conducive to the long-term stable operation of the millimeter wave antenna.

[0009] Optionally, the shape, size and position of the millimeter wave attenuation medium of the attenuation unit and the internal shape of the wave shape transformation unit are determined when the field pattern, return loss, insertion loss, voltage standing wave ratio and S parameter of the millimeter wave meet the impedance matching requirements in the simulation process, and the diameter of the antenna structure is less than a predetermined value, so as to ensure that the antenna mechanism can enter the gynecological cavity.

[0010] Optionally, the wave shape transformation and attenuation device further comprises a positioning rod, an adjusting nut and a limiting spring, the positioning rod is connected with the attenuation unit, and the adjusting nut and the limiting spring adjust the position of the attenuation unit through the positioning rod, so as to adjust the power attenuation amount of the millimeter wave, so that the millimeter wave power is attenuated to the target value.

[0011] By integrating the wave shape transformation unit and the adjustable attenuation unit into one device, the number of parts is reduced, and the requirements for the performance and volume of the instrument are met. The attenuation amount adjustment capability is maintained to be larger under the condition of greatly reducing the volume and without changing the power source, the volume of the wave shape transformation and attenuation device is reduced from 13 cm in length, 2 cm in width and 8 cm in height to 4.5 cm in length, 2 cm in width and 2 cm in height, and the attenuation amount adjustment range is 0.5-10 dB.

[0012] Optionally, the millimeter wave antenna is a conical horn antenna, the antenna protective cover is made of polytetrafluoroethylene material, the millimeter wave antenna and the waveguide are made of gold-plated brass material, and the antenna protective cover completely covers the millimeter wave antenna and the antenna waveguide.

[0013] Optionally, an assembly step is arranged between the antenna protective cover and the millimeter wave antenna, the assembly step is used to fix the relative position between the antenna protective cover and the millimeter wave antenna, the relative position between the antenna protective cover and the millimeter wave antenna is determined according to the field distribution radiated by the millimeter wave antenna, the shape of the antenna protective cover is determined according to the directional diagram of the millimeter wave antenna, and the thickness of the antenna protective cover is determined according to the degree of matching of the characteristic impedance between the millimeter wave antenna and the antenna protective cover in the numerical simulation process.

[0014] By matching adjustment of the shape, thickness and position of the antenna protective cover, the reflection and energy loss of the millimeter wave can be avoided, the antenna transmitting power is ensured, and the long-term stability of the therapeutic instrument is improved, and the treatment effect is ensured.

[0015] Optionally, in the numerical simulation process, when the reflection loss amount of the millimeter wave antenna passing through the antenna protective cover is less than a preset loss amount, the shape and thickness of the antenna protective cover meet the characteristic impedance matching of the millimeter wave at the medium interface on the transmission path.

[0016] Optionally, the host further includes a shell, a power supply interface and a heat dissipation module, and the power supply interface is adapted to provide a stable working voltage for the millimeter wave source through an external direct-current stabilizing circuit.

[0017] The gynecological millimeter wave therapeutic instrument provided by the scheme has a compact structure, and can ensure reliable radiation power while reducing the diameter and volume. Specifically, by integrating the wave type conversion structure and the adjustable attenuation unit into one component, the volume of the wave type conversion attenuation device is greatly reduced without changing the power source, and the attenuation adjustment range reaches 0.5-10dB. The antenna mechanism can penetrate into the cavity, and the length, diameter, shape and transmitting power of the part penetrating into the cavity can be specially designed according to the specific structure of the gynecological cavity, so as to ensure the effect of the instrument.

[0018] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and to be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0019] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the present application thereto. Like reference numerals have been used throughout the drawings to denote like parts. In the drawings:

[0020] Figure 1 A structure diagram of a gynecological millimeter wave therapeutic instrument 001 according to an embodiment of the present application is shown.

[0021] Figure 2 A structure diagram of a waveform conversion attenuation device 140 according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are shown. This present disclosure may, however, be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present disclosure to those skilled in the art.

[0023] The millimeter wave therapeutic instrument can be used to treat various diseases due to its small and precisely controllable action position. However, the existing millimeter wave therapeutic instrument is generally large in size and diameter, and cannot be adaptively adjusted according to the treatment site, and cannot be deeply inserted into a narrow cavity for precise treatment. The present application provides a gynecological millimeter wave therapeutic instrument, which can be deeply inserted into a gynecological cavity for precise treatment, while reducing the diameter and size of the instrument while maintaining a large millimeter wave attenuation adjustment capability.

[0024] Figure 1 A structure diagram of a gynecological millimeter wave therapeutic instrument 001 according to an embodiment of the present application is shown. As shown in Figure 1 The gynecological millimeter wave therapeutic instrument 001 includes a host computer 200, an antenna mechanism 300 connected to the host computer, the antenna mechanism 300 including a waveguide 130, a millimeter wave antenna 110 and an antenna protection cover 100 connected in sequence, the host computer 200 and the antenna mechanism 300 are connected along the same axis direction, the host computer 200 includes a millimeter wave source 150 and a waveform conversion attenuation device 140, and further includes an outer shell 160, a power supply interface 170 and a heat dissipation module 180. The power supply interface 170 is adapted to provide a stable working voltage for the millimeter wave source 150 through an external DC voltage stabilizing circuit. In some embodiments of the present application, the host computer can further include a control module, the control module is adapted to control the millimeter wave irradiation time and irradiation intensity, so as to more precisely and controllably treat the internal site of the gynecological cavity.

[0025] The antenna mechanism 300 can be inserted into a gynecological cavity by a handheld host part for millimeter wave irradiation treatment. The millimeter wave antenna 110 is a conical horn antenna, and the radiation field of the horn antenna is determined by the aperture size and propagation type of the horn. The millimeter wave source 150 can be various microwave functional devices, such as a rectangular waveguide, a millimeter wave photonic crystal device, etc. In the embodiment of the present application, the millimeter wave source outputs a rectangular waveguide, the power is controlled through an attenuation structure, then the wave shape is converted through a wave shape converter with a rectangular-to-circular transition structure feature, and then the wave is transmitted to the transmitting antenna through a circular waveguide. After being emitted from the transmitting antenna, the millimeter wave is transmitted to the treated part through the protective cover.

[0026] In order to reduce the diameter and volume of the instrument, the wave shape conversion and attenuation device is integrated in the present solution, most of the connection structures are eliminated, and the adjustment mechanism is greatly simplified. In order to make the performance meet the use requirements and reduce the mutual interference between the two units, the design of the two functional units is improved through configuration optimization and simulation analysis. Specifically, the shape, size, and position of the millimeter wave attenuation medium of the attenuation unit and the internal shape of the wave shape conversion unit are determined when the field pattern, return loss, insertion loss, voltage standing wave ratio, and S parameters of the millimeter wave in the simulation process meet the impedance matching requirements. Among them, the voltage standing wave ratio is the voltage of the wave crest / wave node, and the S parameters include S12 (reverse transmission coefficient), S21 (forward transmission coefficient), S11 (input reflection coefficient), and S22 (output reflection coefficient). Through the wave shape conversion and attenuation device, the millimeter wave source enters the attenuation unit from the right side, the millimeter wave power emitted by the millimeter wave source is absorbed by the attenuation medium in the attenuation unit, the power is reduced to the target range, and then continues to transmit to the left side into the wave shape conversion unit. After matching and adjustment, the field pattern of the millimeter wave is converted from TE10 wave in the rectangular waveguide to circularly polarized wave in the circular waveguide.

[0027] Figure 2 The structure of the wave shape conversion and attenuation device 140 according to an embodiment of the present application is shown. As Figure 2As shown, the wave transformation attenuation device 140 includes an attenuation unit 142 and a wave transformation unit 141 integrated into one mechanism, the attenuation unit 142 is connected with the millimeter wave source 150 through a flange 146, the wave transformation unit 142 is connected with the circular waveguide in the antenna mechanism, for example, through threaded connection or snap connection, the attenuation unit 142 can attenuate the millimeter wave power emitted by the millimeter wave source 150 to a target value, and the wave transformation unit 141 is adapted to transform the field pattern of the millimeter wave power after power attenuation from TE10 wave in the rectangular waveguide to circular polarization wave in the circular waveguide, so as to provide the required millimeter wave output power for the millimeter wave antenna. The wave transformation attenuation device 140 further includes a positioning rod 143, an adjusting nut 144 and a limiting spring 145. Among them, the positioning rod 143 is connected with the attenuation unit 142, the adjusting nut 144 and the limiting spring 145 adjust the position of the attenuation unit 142 through the positioning rod 143, so as to adjust the power attenuation amount of the millimeter wave, so as to attenuate the millimeter wave power to the target value, and then realize the adjustment of the millimeter wave power attenuation amount. The improved wave transformation attenuation device eliminates most of the connection structure and greatly simplifies the adjusting mechanism, so that the required volume is reduced to 4.5 cm long x 2 cm wide x 2 cm high, the attenuation unit adjusts the millimeter wave power attenuation amount in the range of 0.5-10 dB, which can meet the use demand.

[0028] Since the gynecological millimeter wave therapeutic apparatus needs its antenna to be deeply inserted into the cavity, and the effective radiation area of the antenna is large and the power is large due to the need for treatment. The millimeter wave antenna is a conical horn antenna, the antenna protection cover can be prepared from polytetrafluoroethylene material with good biocompatibility and good millimeter wave transmission, the millimeter wave antenna and the waveguide can be prepared from brass plated gold material, the antenna protection cover completely covers the millimeter wave antenna and the antenna waveguide, which can realize impedance matching of millimeter wave in the propagation path while protecting the antenna, and ensure that the millimeter wave reaches the preset intensity at the treatment site.

[0029] As shown in Figure 1 In the antenna mechanism 300, an assembly step 120 is arranged between the antenna protection cover 100 and the millimeter wave antenna 110, which can be used to fix the relative position between the antenna protection cover and the millimeter wave antenna. The relative position between the antenna protection cover and the millimeter wave antenna can be determined according to the field distribution of the millimeter wave antenna, the shape of the antenna protection cover can be determined according to the directivity diagram of the millimeter wave antenna, and the thickness of the antenna protection cover can be determined according to the degree of characteristic impedance matching between the millimeter wave antenna and the antenna protection cover in the numerical simulation process. In the numerical simulation process, when the wave reflection loss amount of the millimeter wave antenna passing through the antenna protection cover is less than the preset loss amount, it is determined that the shape and thickness of the antenna protection cover meet the characteristic impedance matching between the millimeter wave antenna and the antenna protection cover. The antenna protection cover can be prepared from polytetrafluoroethylene material with biocompatibility, which can ensure the transparency of the antenna protection cover to the millimeter wave antenna.

[0030] By matching adjustment of the shape, thickness, position, etc. of the antenna protective cover, reflection and energy loss of the millimeter wave can be avoided, the antenna transmitting power is ensured, and the long-term stability of the therapeutic instrument is improved, thereby ensuring the treatment effect.

[0031] The above-mentioned millimeter wave therapeutic instrument performs non-invasive and painless treatment on the gynecological cavity, and the structural design can meet the requirement of small size of the millimeter wave therapeutic instrument in the human cavity. In the working process of the gynecological millimeter wave therapeutic instrument, the power supply interface provides working voltage for the millimeter wave source through the direct current stabilizing circuit provided by the external power supply. The millimeter wave source generates millimeter wave oscillation in the resonant cavity, is stabilized at the target frequency and power after being screened by the resonant cavity, and is transmitted to the wave shape transformation and attenuation device. The millimeter wave power is reduced to the target power range, and at the same time, the wave shape is transformed, and the polarization characteristics meet the subsequent system transmission and radiation needs. After that, the millimeter wave continues to be transmitted along the waveguide, reaches the millimeter wave antenna, and is emitted according to the pre-designed radiation direction. During the emission process, it reaches the specific part of the human body after matching through the antenna protective cover.

[0032] Through the above scheme, the gynecological millimeter wave therapeutic instrument is compact in structure, and the diameter and volume are reduced while the reliable radiation power is ensured. Specifically, by integrating the wave shape transformation unit and the adjustable attenuation unit into one component, the large attenuation amount adjustment capability is maintained without changing the power source, the volume of the wave shape transformation and attenuation device is greatly reduced, and the attenuation amount adjustment range reaches 0.5-10 dB. The antenna mechanism can be deeply inserted into the cavity, and the length, diameter, shape, and transmitting power of the part deeply inserted into the cavity can be specially designed according to the specific structure of the gynecological cavity part, so that the effect of the instrument can be ensured.

[0033] In the description provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present description.

[0034] Similarly, it is to be understood that the embodiments of the application hereinbefore described are merely illustrative of the principles of this application. Numerous modifications and adaptations thereof will be apparent to those skilled in the art without departing from the spirit and scope of the present application as defined in the following claims.

[0035] Those skilled in the art will understand that the modules, or units, or components of the devices in the examples disclosed herein can be arranged in the devices as described in the examples, or alternatively can be located in one or more devices different from the devices in the examples. The modules in the foregoing examples can be combined as a module or further divided into multiple sub-modules.

[0036] Those skilled in the art will appreciate that the modules in the devices in the examples can be changed adaptively and disposed in one or more devices different from the examples. The modules or units or components in the examples can be combined as a module or unit or component, and further divided into multiple sub-modules or sub-units or sub-components. Except that at least some of such features and / or processes or units are mutually exclusive, all combinations of all features disclosed in the specification (including the accompanying claims, abstract and drawings), and all processes or units of any methods or apparatuses so disclosed can be employed. Unless explicitly stated otherwise, each feature disclosed in the specification (including the accompanying claims, abstract and drawings) can be replaced by alternative features providing the same, equivalent or similar functionality.

[0037] Further, those skilled in the art will appreciate that, although some examples herein include certain features of other examples but not others, the combination of features of different examples implies that the combination is within the scope of the application and forms a different example. For example, in the following claims, any of the examples that follow claims can be used in any combination.

[0038] Further, some of the examples described herein are described as a method or combination of elements of a method implementable by a processor of a computer system or by other means of carrying out the function. Accordingly, a processor with the necessary instructions for carrying out such a method or element of a method forms a means for carrying out the method or element of a method. Furthermore, an element described herein of a device can be implemented as means, which is implemented by one or more elements of a device for performing the function of the element. Thus, the method or method elements described herein form the means for carrying out the method or method elements.

[0039] As used herein, unless otherwise indicated, the use of the ordinal adjectives "first", "second", "third", etc., merely to distinguish different instances of an object to which the adjective refers, and are not intended to denote a given sequence or order of such objects. Thus, a first object discussed below could be termed a second object without changing the meaning of the description.

[0040] While the application has been described in accordance with the various embodiments shown and described, it is to be understood that the application is not limited to those precise embodiments, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. It is intended that the scope of the application should only be limited as recited in the appended claims.

Claims

1. A gynecological millimeter wave therapeutic apparatus, characterized in that, The application relates to a millimeter wave antenna device, which comprises a host, an antenna mechanism connected with the host, and a circular waveguide, a millimeter wave antenna and an antenna protective cover connected in sequence, wherein the host and the antenna mechanism are connected along the same axial direction; the host comprises a millimeter wave source and a wave shape transformation and attenuation device; the wave shape transformation and attenuation device comprises an attenuation unit and a wave shape transformation unit integrated as one device; the attenuation unit is connected with the millimeter wave source through a flange; the wave shape transformation unit is connected with the circular waveguide; the attenuation unit is adapted to attenuate the millimeter wave power emitted by the millimeter wave source to a target value; the wave shape transformation unit is adapted to transform the field pattern of the millimeter wave after power attenuation from a TE10 wave in a rectangular waveguide into a circular polarization wave in a circular waveguide, so as to provide the required millimeter wave output power for the millimeter wave antenna; the shape, size and position of the millimeter wave attenuation medium of the attenuation unit and the internal shape of the wave shape transformation unit are determined when the field pattern, return loss, insertion loss, voltage standing wave ratio and S parameter of the millimeter wave in the simulation process meet the impedance matching requirements; the diameter of the antenna mechanism is less than a predetermined value; the wave shape transformation and attenuation device further comprises a positioning rod, an adjusting nut and a limiting spring; the positioning rod is connected with the attenuation unit; the adjusting nut and the limiting spring adjust the position of the attenuation unit through the positioning rod, so as to adjust the power attenuation amount of the millimeter wave and make the millimeter wave power attenuate to the target value.

2. The gynecological millimeter wave therapeutic apparatus according to claim 1, characterized in that, The millimeter wave antenna is a conical horn antenna; the antenna protective cover is prepared from polytetrafluoroethylene material; the millimeter wave antenna and the waveguide are prepared from brass gold-plated material; and the antenna protective cover completely covers the millimeter wave antenna and the circular waveguide.

3. The gynecological millimeter wave therapeutic apparatus according to claim 2, characterized in that, An assembly step is arranged between the antenna protective cover and the millimeter wave antenna, and is used for fixing the relative position between the antenna protective cover and the millimeter wave antenna; the relative position between the antenna protective cover and the millimeter wave antenna is determined according to the field distribution of the millimeter wave antenna; the shape of the antenna protective cover is determined according to the directional diagram of the millimeter wave antenna; and the thickness of the antenna protective cover is determined according to the matching degree of the characteristic impedance between the millimeter wave antenna and the antenna protective cover in the numerical simulation process.

4. The gynecological millimeter wave therapeutic apparatus according to claim 3, characterized in that, In the numerical simulation process, when the reflection loss amount of the millimeter wave antenna through the antenna protective cover is less than a preset loss amount, the shape and thickness of the antenna protective cover meet the characteristic impedance matching of the millimeter wave at the medium interface in the transmission path.

5. The gynecological millimeter wave therapeutic apparatus according to claim 1, characterized in that, The host further comprises a shell, a power supply interface and a heat dissipation module; and the power supply interface is adapted to provide a stable working voltage for the millimeter wave source through an external direct-current voltage stabilizing circuit.

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