CN103203077B - Band suppresses microwave to leak the microwave heat therapeutic irradiator of energy - Google Patents
Band suppresses microwave to leak the microwave heat therapeutic irradiator of energy Download PDFInfo
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Abstract
Band suppresses microwave to leak the microwave heat therapeutic irradiator of energy, comprise: irradiator housing, antenna module, cover plate, be set in second outside irradiator housing and suppress cover and outer lateral inhibition cover, second suppresses the end face of cover and the end face of irradiator housing, the end face lordosis of outer lateral inhibition cover suppresses the end face of cover in second, second suppresses to be filled with radiation-absorbing material between cover and outer lateral inhibition cover, second suppresses cover end face circumferentially evenly to offer restrain tank, the restrain tank and second of irradiator housing suppresses the restrain tank geomery that covers identical, equal and the symmetry of quantity is dislocatedly distributed, cover plate is contained in the port of described outer lateral inhibition cover.Invention applies the principle of reactive and resistive suppression microwave leakage energy and the structure of the Multiple Combination such as micro-wave screening and microwave protection, effectively to suppress the microwave of microwave heat therapeutic irradiator to leak energy, thus be up to state standards with national pharmaceuticals industry standard to the professional requirement of " Work places microwave radiation sanitary standard " and " unwanted radiation Microwave Power Density ".
Description
Technical field
The present invention relates to a kind of microwave heat therapeutic irradiator, belong to medical microwave technical applications.
Background technology
Microwave technology is the new technology of of just growing up at twentieth century, first it be used in communication aspect, to the beginning of the seventies at the end of the sixties, it is applied to the fields such as heating, drying, food sterilizing and clinical treatment as a kind of energy by popularity abroad.The eighties, more domestic large hospitals start to introduce microwave heat therapeutic equipment, after the nineties, domestic many microwave specialized factories and R&D institution, medical apparatus corporation, Ltd etc. have developed polytype microwave heat therapeutic equipment, tumour hospital and the large and medium-sized general hospital of most domestic are also all configured with microwave heat therapeutic equipment, make it progressively to define the upsurge utilizing microwave energy to treat various disease, achieve plentiful and substantial achievement in research and significant medical effect simultaneously.In this century, be united and applied in clinical again by microwave heat therapeutic and radiotherapy or chemotherapy etc., its curative effect is more outstanding.
At present, microwave heat therapeutic in clinical practice widely.But existing microwave heat therapeutic irradiator and in its use, also exists technological deficiency and problem:
1 microwave heat therapeutic is too simple with radiator structure, can not effectively suppress and prevent microwave energy leakage.
2 when Clinical practice microwave heat therapeutic, and operator has a mind to, or the end face of irradiator (mouth) and human epidermal by mistake can be allowed to maintain certain distance, and this makes the leakage of microwave energy more serious.
In YY0839-2011 " microwave heat therapeutic equipment " national pharmaceuticals industry standard, the 5.4th article " microwave radiation " requires: " unwanted radiation Microwave Power Density is no more than 10mW/cm
2".
In GB10436-89 " Work places microwave radiation sanitary standard " national standard, the 2nd article " sanitary standard Limited Doses " requires: " operating personnel's operative position allows the average power density of microwave radiation ....”
In clinical, the process of patient's microwave heat therapeutic is within the working time of setting, the process of microwave power source ceaselessly microwave radiation energy.Status of medical staff in hospital usually asks: and " does leakage of the microwave energy of microwave heat therapeutic equipment have much? there is anything to injure to human body? "
Now, in the middle of the microwave heat therapeutic equipment used in hospital, the little microwave therapeutic apparatus for main and collateral channels and acupoints to single group microwave power source, it exports microwave power is tens watts, large to 3 groups and 6 groups, or the large-scale microwave heat therapeutic equipment of many group microwave power sources such as 4 groups and 8 groups, it exports microwave power is upper hectowatt, even can reach three, four hectowatts, and microwave heat therapeutic is the mode of operation of impulse wave.
Therefore, the query that status of medical staff proposes, should give enough attention, and particularly the research and development of microwave heat therapeutic equipment and maker, first should make answer.
In GB5959.6-87 national standard, 5.1 articles of the 5th " protection of microwave leakage ", require: " design of microwave equipment, manufacture and operation, the radiation risk that should be able to fully prevent microwave leakage from producing.”
Briefly, Work places microwave radiation has exceeded " sanitary standard Limited Doses " ... with " unwanted radiation Microwave Power Density has exceeded 10mW/cm
2", unfavorable to the health of the medical personnel of long period of operation microwave heat therapeutic equipment, to the non-lesion tissue of patient and healthy unfavorable.When microwave radiation power density reaches certain value time, bring impact can to the normal work of this microwave heat therapeutic equipment itself and periphery Medical Instruments, even cause severe jamming.
Summary of the invention
Technical problem to be solved by this invention is: overcome above-mentioned existing product defect, provides a kind of microwave heat therapeutic irradiator with suppressing microwave to leak energy.
In order to solve above technical problem, microwave heat therapeutic irradiator of the present invention, comprise: the irradiator housing suppressing cover as first, antenna module, cover plate, the end face of described irradiator housing circumferentially evenly offers restrain tank, it is characterized in that: also comprise the second suppression cover and the outer lateral inhibition cover be from inside to outside set according to the order of sequence outside irradiator housing, described second suppresses the end face of cover and the end face of irradiator housing, the end face lordosis of described outer lateral inhibition cover suppresses the end face of cover in second, described second suppresses to be filled with radiation-absorbing material between cover and outer lateral inhibition cover, described second suppresses cover end face circumferentially evenly to offer restrain tank, the restrain tank and second of described irradiator housing suppresses the restrain tank geomery that covers identical, equal and the symmetry of quantity is dislocatedly distributed, described cover plate is contained in the port of described outer lateral inhibition cover.
The present invention further improves and is:
1, described second suppresses cover and the axle center of outer lateral inhibition cover and the axis coinciding of irradiator housing.
2, described cover plate has the step of evagination, and its outer surface is concordant with the end face of outer lateral inhibition cover, and its inner surface props up the second suppression cover end face and irradiator end face, and described step inserts the endoporus of irradiator housing forward end.
3, described cover plate suppresses with irradiator housing, second to cover by bonding agent respectively, outer lateral inhibition cover fixes.
4, also include the anti-microwave radiation fiber door curtain made of cloth be enclosed within outside described outer lateral inhibition cover, the tail end of the described anti-microwave radiation fiber door curtain made of cloth is connected with irradiator housing.
5, described anti-microwave radiation fiber door curtain made of cloth tail end is fastened on outside the cylindrical shell of irradiator housing by fast rotating clip.
6, also there is a 3rd suppression cover be arranged between the second suppression cover and outer lateral inhibition cover, described radiation-absorbing material is filled in the described 3rd and suppresses between cover and outer lateral inhibition cover, described 3rd suppresses cover and second to suppress to cover outer end flushes, 3rd suppresses cover end face circumferentially evenly to offer restrain tank, described 3rd suppresses the restrain tank and second of cover to suppress the restrain tank geomery that covers identical, and the equal and symmetry of quantity is dislocatedly distributed.
7, described cover plate outer surface is concordant with the end face of outer lateral inhibition cover, and its inner surface props up irradiator end face, second and suppresses cover end face and the 3rd to suppress cover end face.
Irradiator housing of the present invention is the thin-wall tube-shaped housing of the metal material such as stainless steel or aluminum matter, and its front end edge circumference evenly offers some restrain tanks, and restrain tank quantity is: front port girth is divided by restrain tank spacing.Utilize the pectination circumferentially distributed at its position, front end to slot, form the suppression of microwave being leaked to energy.
Involved by the present invention, second suppresses cover to be revealed the exact details the short tubular of shape for the metal thin-wall such as rustless steel, and its front end edge circumference evenly offers and irradiator housing forward end restrain tank width and the restrain tank that physical dimension is identical, quantity is equal such as length.It is sleeved on outside irradiator housing, its end face and irradiator housing end face, and both restrain tanks adopt spot-welding technology to fix it in misplacing and the state of symmetry.Utilize the pectination circumferentially distributed at its position, front end to slot, form the suppression of the second level microwave being leaked to energy.
The involved outer lateral inhibition cover of the present invention is that the metal thin-walls such as stainless steel are revealed the exact details the short tubular of shape, and it is sleeved on outside the second suppression cover, and end face should protrude from the second suppression cover end face, and it axially protrudes distance is cover plate materials thickness, and employing spot-welding technology fixes it.Between itself and second suppress to cover in space, fill radiation-absorbing material, leak energy to absorb microwave.
Cover plate involved by the present invention is the thin plate (sheet), geometry and the size of its exterior contour and outer lateral inhibition cover front end endoporus match, adopt bonding agent, itself and irradiator front end endoporus and end face, second are suppressed cover front end face and outer lateral inhibition cover front end endoporus bonding firmly.Recommend cover plate to select polytetrafluoroethylmaterial material, its dielectric loss is very little, smooth surface, and self lubricity is good.
In the present invention, radiation-absorbing material is recommended to select constitutional formula mlcrowaves radiation-absorbing material, and its feature weight ratio is comparatively light, and has certain strength and stiffness.Or select absorption-type microwave radiation absorption material.
The anti-microwave radiation fiber door curtain made of cloth involved by the present invention, light weight, pliability are good, and have good anti-microwave radiation performance, microwave transmission amount be only amount of incident 100,000/.Adopt quick clip to be fastened on outside irradiator housing cylinder, as the last barrier preventing microwave from leaking energy, play the dual function of micro-wave screening and microwave protection.
The profile of irradiator housing of the present invention and size thereof, should as far as possible premised on the demand adapted to and meet clinical thermotherapy and curative effect, weigh its manufacturability manufactured and feasibility again, then carry out design and manufaction, again by test, adjustment and amendment, the performance of active antenna and parameter is made to reach optimum state.
The restrain tank width that irradiator housing forward end of the present invention and second suppresses cover front end to be offered, length (along radiator axis to), the spacing of restrain tank, irradiator housing forward end (diameter) and second suppresses the gap of covering front end (diameter), second suppresses the gap etc. of covering front end (diameter) and outer lateral inhibition cover front end (diameter), main and microwave operational frequencies, with the locus in antenna type and residing irradiator housing, and each factors such as the practical combinations situation of cover that suppress are closely related, belong to general knowledge known in this field, this description is not described in detail to this.
The spot welding of thin metal material of the present invention, in the technical process manufactured, stresses in particular the control of the distance of adjacent two solder joints and the requirement that must not have rosin joint, is the key problem in technology guaranteeing to leak without microwave between two thin metal materials contact gaps energy.
Invention applies the principle of reactive and resistive suppression microwave leakage energy and the structure of the Multiple Combination such as micro-wave screening and microwave protection, effectively to suppress the microwave of microwave heat therapeutic irradiator to leak energy, thus reach the requirement to " Work places microwave radiation sanitary standard " and " unwanted radiation Microwave Power Density " in above-mentioned national standard and national pharmaceuticals industry standard.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the structural representation of the embodiment of the present invention two.
Fig. 4 is the B direction view of Fig. 2.
Label in figure is as follows with signal title: 1-irradiator housing, 2-antenna module, and 3-second suppresses cover, the outer lateral inhibition cover of 4-, 5-radiation-absorbing material, and the 6-anti-microwave radiation fiber door curtain made of cloth, 7-cover plate, 8-the 3rd suppresses cover.
Detailed description of the invention
Embodiment one
As shown in Figure 1 and Figure 2, the present embodiment band suppresses microwave to leak the microwave heat therapeutic irradiator of energy, and its composition comprises: irradiator housing 1, antenna module 2, and second suppresses cover 3, outer lateral inhibition cover 4, radiation-absorbing material 5, the anti-microwave radiation fiber door curtain made of cloth 6, cover plate 7.
As shown in Figure 1 and Figure 2, antenna module 2 is fixed on irradiator housing 1 inside.Some restrain tanks are evenly offered in the front end edge circumference of irradiator housing 1.Second suppresses the front end of cover 3 equally circumferentially evenly to offer some restrain tanks, and it is set with and puts and is welded in outside irradiator housing 1, and end face is concordant, and the restrain tank of its restrain tank and irradiator housing 1 is in misplacing and symmetry status.Outer lateral inhibition cover 4 is set with and puts and is welded in outside the second suppression cover 3, and its end face protrudes from the end face of the second suppression cover 3, and axial distance is the thickness of the shoulder plate of cover plate 7.Between the second suppression cover 3 and outer lateral inhibition cover 4 in space, be filled with microwave radiation absorption material 5.In the front aperture that the cylindrical of cover plate 7 and shoulder cylindrical are installed on irradiator housing 1 respectively and in outer lateral inhibition cover 4 front aperture, shoulder inner surface props up the end face that irradiator housing 1 and second suppresses cover 3, adopts bonding agent to be adhesively fixed each contact surface.The anti-microwave radiation fiber door curtain made of cloth 6, is fixed in outside irradiator housing 1 cylindrical shell with quick clip.
Band of the present invention suppresses microwave to leak the microwave heat therapeutic irradiator of energy, and assembling process is as follows:
Suppress cover 3 para-position to be set on the cylindrical of irradiator housing 1 by second, utilize specific purpose tool and weld jig, both guarantees end face is concordant, both restrain tanks in dislocation and symmetry status, on mash welder, spot welding fixes it.Just outer lateral inhibition cover 4 is set on the cylindrical of the second suppression cover 3 along the axial para-position of irradiator housing 1, utilize specific purpose tool and weld jig, ensure that outer lateral inhibition cover 4 protrudes from the second suppression and covers 3 end faces, axial distance is the shoulder sheet metal thickness of cover plate 7, suppress, between cover 3 and outer lateral inhibition cover 4 in absolutely empty gap, to fill microwave radiation absorption material second, strictly press the proportioning of material, absorbing material should be filled up to and suppress the end face of cover 3 concordant with second, material cured to be absorbed.By the bottom outlet of antenna module 2 through irradiator housing 1, with the rear end of screw fastening at irradiator housing 1.
After this, check point welding quality, test adjust radiator antenna and performance and technical specification, comprising that inspection microwave leaks can parameter.
After qualified, the front aperture that the cylindrical of cover plate 7 and shoulder cylindrical are installed on irradiator housing 1 is respectively interior with in outer lateral inhibition cover 4 front aperture, shoulder inner surface props up the end face of irradiator housing 1 and the second suppression cover 3, bonding agent is spread upon each contact surface in advance, is adhesively fixed.Finally, use fast-type clip, the anti-microwave radiation fiber door curtain made of cloth is fastened on outside the cylindrical shell of irradiator 1.So far, the assembling of the embodiment of the present invention one is terminated.
As shown in Figure 3, Figure 4, the present embodiment band suppresses microwave to leak the microwave heat therapeutic irradiator of energy, and its composition comprises: irradiator housing 1, antenna module 2, second suppresses cover 3, outer lateral inhibition cover 4, radiation-absorbing material 5, the anti-microwave radiation fiber door curtain made of cloth 6, cover plate 7, the 3rd suppresses cover 8.
As shown in Figure 3, Figure 4, the feature of the present embodiment is: suppress to have set up again the 3rd outside cover 3 in second of embodiment one and suppress cover 8, some restrain tanks are equally circumferentially evenly offered in its front end, and with the second width, length suppressing cover 3 front end restrain tank, physical dimension is identical, quantity is equal, it is set with and puts and is welded in outside the second suppression cover 3, its end face with it end face is concordant, and its restrain tank and second suppresses the restrain tank of cover 3 in misplacing and symmetry status.Outer lateral inhibition cover 4 is set with and puts and is welded in outside the 3rd suppression cover 8, and its end face protrudes from the end face that the 3rd suppresses cover 8, and the axial distance of protrusion is the material thickness of cover plate 7.Lateral inhibition cover 4 and the 3rd to suppress between cover 8, in space, to be filled with microwave radiation absorption material 5 outside.The cylindrical of cover plate 7 is installed in outer lateral inhibition cover 4 front aperture, and its outer surface is concordant with outer lateral inhibition cover 4 end face, and inner surface props up irradiator 1, second and suppresses cover 3 and the 3rd to suppress the front end face of cover 8, adopts bonding agent to be adhesively fixed each contact surface.The anti-microwave radiation fiber door curtain made of cloth 8, is fixed in outside irradiator housing 1 cylindrical shell with quick clip.
Band of the present invention suppresses microwave to leak the microwave heat therapeutic irradiator of energy, and assembling process is as follows:
First suppress cover 3 para-position to be set on the cylindrical of irradiator housing 1 by second, utilize specific purpose tool and weld jig, both guarantees end face is concordant, both restrain tanks in dislocation and symmetry status, on mash welder, spot welding fixes it.By the 3rd suppress cover 8 be set on the cylindrical of the second suppression cover 3 along the axial para-position of irradiator housing 1, utilize specific purpose tool and weld jig, both guarantees end face be concordant, both restrain tanks in dislocation and symmetry status, on mash welder, spot welding fixes it.Just outer lateral inhibition cover 4 is set in along the axial para-position of irradiator housing 1 on the cylindrical of the 3rd suppression cover 8 again, utilize specific purpose tool and weld jig, ensure that outer lateral inhibition cover 4 protrudes from the 3rd and suppresses cover 8 end face, outstanding axial distance is the material thickness of cover plate 7, and it is fixed by mash welder.Lateral inhibition cover 4 and the 3rd suppresses between cover 8 in space outside, fills microwave radiation absorption material 5, and strictly press the proportioning of material, absorbing material should be filled up to concordant with the end face of outer lateral inhibition cover 4, material cured to be absorbed.By the bottom outlet of antenna module 2 through irradiator housing 1, with the rear end of screw fastening at irradiator housing 1.
After this, check point welding quality, test adjust radiator antenna performances and parameters index, comprising that inspection microwave leaks can parameter.
After qualified, the cylindrical of cover plate 7 is installed in outer lateral inhibition cover 4 front aperture, and its inner surface props up irradiator housing 1, second and suppresses cover 3 and the 3rd to suppress the end face of cover 8, bonding agent is spread upon each contact surface in advance, is adhesively fixed.Finally, use fast-type clip, the anti-microwave radiation fiber door curtain made of cloth is fastened on outside the cylindrical shell of irradiator 1.So far, the assembling of the embodiment of the present invention two is terminated.
Shown by the assembling of the exemplar of the present embodiment one, two and test result, band of the present invention suppresses microwave to leak the microwave heat therapeutic irradiator of energy, apply the principle of reactive and resistive suppression microwave leakage energy and the structure of the Multiple Combination such as micro-wave screening and microwave protection, it can be effective for suppressing microwave to leak to microwave heat therapeutic irradiator.
The principle combinative structure of the present invention, can promote the use of on the microwave heat therapeutic irradiator of various abnormal shape well.Especially to powerful microwave diathermy machine (equipment), design according to suitable type, control " radiation risk that should be able to fully prevent microwave leakage from producing ", there is realistic meaning and using value.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (8)
1. band suppresses microwave to leak the microwave heat therapeutic irradiator of energy, comprise: the irradiator housing suppressing cover as first, antenna module, cover plate, the end face of described irradiator housing circumferentially evenly offers restrain tank, it is characterized in that: also comprise the second suppression cover and the outer lateral inhibition cover be from inside to outside set according to the order of sequence outside irradiator housing, described second suppresses the end face of cover and the end face of irradiator housing, the end face lordosis of described outer lateral inhibition cover suppresses the end face of cover in second, described second suppresses to be filled with radiation-absorbing material between cover and outer lateral inhibition cover, described second suppresses cover end face circumferentially evenly to offer restrain tank, the restrain tank and second of described irradiator housing suppresses the restrain tank geomery that covers identical, equal and the symmetry of quantity is dislocatedly distributed, described cover plate is contained in the port of described outer lateral inhibition cover.
2. microwave heat therapeutic irradiator according to claim 1, is characterized in that: described second suppresses cover and the axle center of outer lateral inhibition cover and the axis coinciding of irradiator housing.
3. microwave heat therapeutic irradiator according to claim 1, it is characterized in that: described cover plate has the step of evagination, cover plate outer surface is concordant with the end face of outer lateral inhibition cover, cover inner surface props up the second suppression cover end face and irradiator end face, and described step inserts the endoporus of irradiator housing forward end.
4. microwave heat therapeutic irradiator according to claim 3, is characterized in that: described cover plate suppresses with irradiator housing, second to cover by bonding agent respectively, outer lateral inhibition cover is fixed.
5. microwave heat therapeutic irradiator according to claim 1, is characterized in that: also include the anti-microwave radiation fiber door curtain made of cloth be enclosed within outside described outer lateral inhibition cover, and the tail end of the described anti-microwave radiation fiber door curtain made of cloth is connected with irradiator housing.
6. microwave heat therapeutic irradiator according to claim 5, is characterized in that: described anti-microwave radiation fiber door curtain made of cloth tail end is fastened on outside the cylindrical shell of irradiator housing by fast rotating clip.
7. microwave heat therapeutic irradiator according to claim 1, it is characterized in that: also there is a 3rd suppression cover be arranged between the second suppression cover and outer lateral inhibition cover, described radiation-absorbing material is filled in the described 3rd and suppresses between cover and outer lateral inhibition cover, described 3rd suppresses cover and second to suppress to cover outer end flushes, 3rd suppresses cover end face circumferentially evenly to offer restrain tank, described 3rd suppresses the restrain tank and second of cover to suppress the restrain tank geomery that covers identical, and the equal and symmetry of quantity is dislocatedly distributed.
8. microwave heat therapeutic irradiator according to claim 7, is characterized in that: described cover plate outer surface is concordant with the end face of outer lateral inhibition cover, and its inner surface props up irradiator end face, second and suppresses cover end face and the 3rd to suppress cover end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310130580.1A CN103203077B (en) | 2013-04-16 | 2013-04-16 | Band suppresses microwave to leak the microwave heat therapeutic irradiator of energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310130580.1A CN103203077B (en) | 2013-04-16 | 2013-04-16 | Band suppresses microwave to leak the microwave heat therapeutic irradiator of energy |
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| Publication Number | Publication Date |
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| CN103203077A CN103203077A (en) | 2013-07-17 |
| CN103203077B true CN103203077B (en) | 2016-03-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111952715A (en) * | 2020-08-13 | 2020-11-17 | 西安量极医疗设备有限公司 | Microwave physiotherapy radiator based on miniaturized dipole antenna |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253842A (en) * | 1998-11-12 | 2000-05-24 | 陈绍勇 | Improved microwave therapeutic equipment |
| CN1270069A (en) * | 1999-04-12 | 2000-10-18 | 李君顺 | Closing-type radiator |
| JP2002159581A (en) * | 2000-11-27 | 2002-06-04 | Minato Ikagaku Kk | Electromagnetic shield cover for microwave therapy |
| JP2004313582A (en) * | 2003-04-18 | 2004-11-11 | Minato Ikagaku Kk | Irradiation device for microwave therapeutic apparatus |
| CN1917130A (en) * | 2006-08-24 | 2007-02-21 | 柴玉瑛 | Multi output microwave source of magnetron in medical use, and microwave therapy unit |
| CN203169843U (en) * | 2013-04-16 | 2013-09-04 | 杨兴瑞 | Radiator used for microwave hyperthermia and having function of suppressing microwave energy leakage |
-
2013
- 2013-04-16 CN CN201310130580.1A patent/CN103203077B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253842A (en) * | 1998-11-12 | 2000-05-24 | 陈绍勇 | Improved microwave therapeutic equipment |
| CN1270069A (en) * | 1999-04-12 | 2000-10-18 | 李君顺 | Closing-type radiator |
| JP2002159581A (en) * | 2000-11-27 | 2002-06-04 | Minato Ikagaku Kk | Electromagnetic shield cover for microwave therapy |
| JP2004313582A (en) * | 2003-04-18 | 2004-11-11 | Minato Ikagaku Kk | Irradiation device for microwave therapeutic apparatus |
| CN1917130A (en) * | 2006-08-24 | 2007-02-21 | 柴玉瑛 | Multi output microwave source of magnetron in medical use, and microwave therapy unit |
| CN203169843U (en) * | 2013-04-16 | 2013-09-04 | 杨兴瑞 | Radiator used for microwave hyperthermia and having function of suppressing microwave energy leakage |
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| CN103203077A (en) | 2013-07-17 |
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