CN103203077A - Microwave hyperthermia radiator capable of restraining microwave energy leakage - Google Patents
Microwave hyperthermia radiator capable of restraining microwave energy leakage Download PDFInfo
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Abstract
A microwave hyperthermia radiator capable of restraining microwave energy leakage comprises a radiator casing, an antenna assembly, a cover plate, a second restraining cover sleeved on the radiator casing and an outer restraining cover. The end face of the second restraining cover is level with the end face of the radiator casing, the end face of the outer restraining cover protrudes out from the end face of the second restraining cover, radiation absorbing materials are filled between the second restraining cover and the outer restraining cover, restraining grooves are evenly and circumferentially arranged on the end face of the second restraining cover, restraining grooves of the radiator casing and the restraining grooves of the second restraining cover are the same in shape, dimension and number and are symmetrically distributed in a staggered mode, and the cover plate is installed in a port of the outer restraining casing. The microwave hyperthermia radiator uses the theory for restraining microwave energy leakage through reactive capability and resistiveness, adopts a microwave shielding and microwave protection structure, effectively restrains microwave energy leakage of the radiator for microwave hyperthermia, and accordingly meets the special requirements for 'sanitary standard of microwave radiation in workplaces' and 'useless radiation microwave power density' of the national standard and the national pharmaceutical industrial standard.
Description
Technical field
The present invention relates to a kind of microwave heat therapeutic irradiator, belong to the medical microwave technical applications.
Background technology
Microwave technology is a new technology that just grows up at twentieth century, it at first is used in the communication aspect, to the beginning of the seventies at the end of the sixties, it generally is applied to fields such as heating, drying, food sterilizing and clinical treatment as a kind of energy abroad.The eighties, more domestic large hospitals begin 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, domestic most tumour hospital and large and medium-sized general hospital have also all disposed microwave heat therapeutic equipment, make it progressively to have formed the upsurge of utilizing microwave energy treatment various diseases, obtained plentiful and substantial achievement in research and significant medical effect simultaneously.This century, again with use in conjunction such as microwave heat therapeutic and radiotherapy or chemotherapy in clinical, its curative effect is more outstanding.
At present, microwave heat therapeutic is very extensive in clinical practice.But existing microwave heat therapeutic exists technological deficiency and problem with irradiator with aspect its use:
1 microwave heat therapeutic is too simple with radiator structure, can not suppress effectively and prevent that microwave energy from leaking.
2 when clinical use microwave heat therapeutic, and the operator has a mind to, or by mistake can allow the end face (mouth) of irradiator and human epidermal maintain certain distance, and this makes that the leakage of microwave energy is more serious.
In the national pharmaceuticals industry standard of YY0839-2011 " microwave heat therapeutic equipment ", the 5.4th " microwave radiation " requires: " the unwanted radiation Microwave Power Density is no more than 10mW/cm
2".
In GB10436-89 " operation place microwave radiation sanitary standard " national standard, the 2nd " the sanitary standard value of limiting the quantity of " requires: " operating personnel's operative position is allowed the average power density of microwave radiation ....”
In clinical, the process of patient's microwave heat therapeutic is that microwave power source is the process of microwave radiation energy ceaselessly in the working time of setting.Status of medical staff in the hospital usually asks: and " does leakage of the microwave energy of microwave heat therapeutic equipment have much? what injury human body is there? "
Now, in the middle of the microwave heat therapeutic equipment that uses in the hospital, little microwave therapeutic apparatus for main and collateral channels and acupoints to single group microwave power source, its output microwave power is tens watts, greatly 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, its output microwave power is last 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 be given enough attention, and particularly the research and development of microwave heat therapeutic equipment and maker should at first be made answer.
In the GB5959.6-87 national standard, the 5th " protection of microwave leakage " 5.1, require: " design of microwave equipment, manufacturing and operation should be able to fully prevent the radiation risk that microwave leakage produces.”
Briefly, operation place microwave radiation has surpassed " the sanitary standard value of limiting the quantity of " ... and " the unwanted radiation Microwave Power Density has surpassed 10mW/cm
2", healthy unfavorable to the medical personnel of long period of operation microwave heat therapeutic equipment is to patient's non-lesion tissue and healthy unfavorable.When the microwave radiation power density reaches certain value, bring influence can for the operate as normal of this microwave heat therapeutic equipment itself and peripheral Medical Instruments, even cause serious interference.
Summary of the invention
Technical problem to be solved by this invention is: overcome above-mentioned existing product defective, provide a kind of with suppressing the microwave heat therapeutic irradiator that microwave leaks energy.
In order to solve above technical problem, microwave heat therapeutic irradiator of the present invention, comprise: as the irradiator housing of the first inhibition cover, antenna module, cover plate, the end face of described irradiator housing is along circumferentially evenly offering restrain tank, it is characterized in that: also comprise from inside to outside being set in second outer inhibition cover and the outer lateral inhibition cover of irradiator housing according to the order of sequence, 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 is in the end face of the second inhibition cover, described second suppresses to be filled with radiation-absorbing material between cover and the outer lateral inhibition cover, described second suppresses the cover end face along circumferentially evenly offering restrain tank, the restrain tank geomery that the restrain tank of described irradiator housing and second suppresses cover is identical, quantity equates and symmetry is dislocatedly distributed, and 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 second and suppresses cover end face and irradiator end face, and described step inserts the endoporus of irradiator housing front end.
3, described cover plate is fixed with irradiator housing, the second inhibition cover, outer lateral inhibition cover respectively by bonding agent.
4, also include the anti-microwave radiation fiber door curtain made of cloth that is enclosed within outside the described outer lateral inhibition cover, the tail end of the described anti-microwave radiation fiber door curtain made of cloth is connected with the 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 have one and be arranged at second the 3rd inhibition cover that suppresses between cover and the outer lateral inhibition cover, described radiation-absorbing material is filled in the described the 3rd to be suppressed between cover and the outer lateral inhibition cover, described the 3rd inhibition cover and second suppresses the cover outer end and flushes, the 3rd suppresses the cover end face along circumferentially evenly offering restrain tank, the restrain tank geomery that the described the 3rd restrain tank and second that suppresses cover suppresses cover is identical, and quantity equates and symmetry 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 inhibition cover end face.
Irradiator housing of the present invention is the thin-wall tube-shaped housing of metal materials such as stainless steel or aluminum matter, and its front end edge is circumferentially evenly offered some restrain tanks, and restrain tank quantity is: the front port girth is divided by the restrain tank spacing.Utilize the circumferential pectination fluting that distributes in edge at its front end position, form the inhibition of microwave being leaked energy.
The present invention related second suppresses cover and is the reveal the exact details short tubular of shape of metal thin-walls such as rustless steel, the restrain tank that its front end edge circumferentially evenly offers is identical with physical dimensions such as irradiator housing front end restrain tank width and length, quantity equates.It is sleeved on outside the irradiator housing, its end face and irradiator housing end face, and both restrain tanks are the state of dislocation and symmetry, adopt spot-welding technology to fix it.Utilize the circumferential pectination fluting that distributes in edge at its front end position, form the inhibition of microwave being leaked second level of energy.
The related outer lateral inhibition cover of the present invention is the reveal the exact details short tubular of shape of metal thin-wall such as stainless steel, and it is sleeved on second and suppresses outside the cover, and end face should protrude from second and suppress the cover end face, and it axially protrudes distance be cover plate materials thickness, and the employing spot-welding technology is fixed it.At it and second suppress between the cover to fill radiation-absorbing material in the space, leak energy to absorb microwave.
The related cover plate of the present invention is The thin plate (sheet), its exterior contour matches with geometry and the size of outer lateral inhibition cover front end endoporus, the employing bonding agent suppresses the cover front end face with itself and irradiator front end endoporus and end face, second and outer lateral inhibition cover front end endoporus is bonding firmly.Recommend cover plate to select polytetrafluoroethylmaterial material for use, its dielectric loss is very little, smooth surface, and self lubricity is good.
Among the present invention, radiation-absorbing material is recommended to select structural type microwave radiation absorbing material for use, and its characteristics weight is low weight, and has certain intensity and rigidity.Or select absorption-type microwave radiation absorbing material for use.
The related anti-microwave radiation fiber of the present invention door curtain made of cloth, light weight, pliability are good, and have good anti-microwave radiation performance, the microwave transmission amount only be 100,000 of amount of incident/.Adopt quick clip that it is fastened on outside the irradiator housing cylindrical shell, as preventing that microwave from leaking the last barrier of energy, plays the dual function of micro-wave screening and microwave protection.
The profile of irradiator housing of the present invention and size thereof, should be as far as possible be prerequisite with the demand and the curative effect that adapt to and satisfy clinical thermotherapy, weigh manufacturability and the feasibility of its manufacturing again, then design and make, by test, adjustment and modification, make the performance of active antenna and parameter reach optimum state again.
Irradiator housing front end of the present invention and second suppress restrain tank width that the cover front end offers, length (along radiator axis to), between the restrain tank apart from, irradiator housing front end (diameter) and second suppress crack between the cover front end (diameter), second suppress to cover front end (diameter) and outside crack etc. between the lateral inhibition cover front end (diameter), main and microwave operational frequencies, with the locus in antenna type and the irradiator housing of living in, and the factors such as practical combinations situation of each inhibition cover are closely related, belong to general knowledge known in this field, this description is not elaborated to this.
The spot welding of thin metal material of the present invention in the technical process of making, stresses in particular the control of the distance of adjacent two solder joints and the requirement of rosin joint must not be arranged, and is to guarantee that no microwave between the two thin metal materials contact slit leaks the key problem in technology of energy.
The present invention has used reactive and resistive suppresses the principle of microwave leakage energy and the structure of Multiple Combination such as micro-wave screening and microwave protection, with suppress effectively microwave heat therapeutic with the microwave of irradiator leak can, thereby reach in above-mentioned national standard and the national pharmaceuticals industry standard requirement to " operation place microwave radiation sanitary standard " and " unwanted radiation Microwave Power Density ".
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is the structural representation of the embodiment of the invention two.
Fig. 4 is that the B of Fig. 2 is to view.
Label among the figure is as follows with the signal title: 1-irradiator housing, and the 2-antenna module, 3-second suppresses cover, the outer lateral inhibition cover of 4-, the 5-radiation-absorbing material, the 6-anti-microwave radiation fiber door curtain made of cloth, the 7-cover plate, 8-the 3rd suppresses cover.
The specific embodiment
Embodiment one
As shown in Figure 1 and Figure 2, the present embodiment band suppresses the microwave heat therapeutic irradiator that microwave leaks energy, and its composition comprises: irradiator housing 1, antenna module 2, the 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.Front end edge at irradiator housing 1 is circumferentially evenly offered some restrain tanks.Some restrain tanks are circumferentially evenly offered on the second same edge of front end that suppresses cover 3, and its suit and point are welded in outside the irradiator housing 1, and end face is concordant, and the restrain tank of its restrain tank and irradiator housing 1 is dislocation and symmetry status.Outer lateral inhibition cover 4 suits and point are welded in second to be suppressed outside the cover 3, and its end face protrudes from the end face of the second inhibition cover 3, and axial distance is the thickness of the shoulder plate of cover plate 7.Second suppress cover 3 and outside between the lateral inhibition cover 4 in the space, be filled with microwave radiation absorbing material 5.The cylindrical of cover plate 7 and shoulder cylindrical are installed in the front aperture of irradiator housing 1 respectively and in outer lateral inhibition cover 4 front aperture, the shoulder inner surface props up the end face that irradiator housing 1 and second suppresses cover 3, employing bonding agent each contact surface that is adhesively fixed.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 the microwave heat therapeutic irradiator that microwave leaks energy, and assembling process is as follows:
Suppress cover 3 para-positions with second and be set on the cylindrical of irradiator housing 1, utilize specific purpose tool and weld jig, guarantee that both end faces are concordant, both restrain tanks are dislocation and symmetry status, spot welding is fixed it on mash welder.Just outer lateral inhibition cover 4 is set in second along the 1 axial para-position of irradiator housing to be suppressed on the cylindrical of cover 3, utilize specific purpose tool and weld jig, guarantee that outer lateral inhibition cover 4 protrudes from second and suppresses cover 3 end faces, axial distance is the shoulder sheet metal thickness of cover plate 7, suppress between cover 3 and the outer lateral inhibition cover 4 in the absolutely empty crack filling microwave radiation absorbing material, the proportioning that material is pressed in strictness second, absorbing material should be filled up to concordant with the end face of the second inhibition cover 3, treats that absorbing material solidifies.Antenna module 2 is passed the bottom outlet of irradiator housing 1, be fastened on the rear end of irradiator housing 1 with screw.
After this, irradiator antenna and performance and technical specification are also adjusted in check point welding quality, test, comprise that the check microwave leaks the energy parameter.
After qualified, the cylindrical of cover plate 7 and shoulder cylindrical are installed in the front aperture of irradiator housing 1 respectively and in outer lateral inhibition cover 4 front aperture, the shoulder inner surface props up the end face that irradiator housing 1 and second suppresses cover 3, and bonding agent is spread upon each contact surface in advance, is adhesively fixed.At last, with quick formula clip, the anti-microwave radiation fiber door curtain made of cloth is fastened on outside the cylindrical shell of irradiator 1.So far, finish the assembling of the embodiment of the invention one.
As shown in Figure 3, Figure 4, the present embodiment band suppresses the microwave heat therapeutic irradiator that microwave leaks 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 three suppresses cover 8.
As shown in Figure 3, Figure 4, present embodiment is characterised in that: suppress to have set up again outside the cover 3 the 3rd at second of embodiment one and suppress cover 8, its front end is same along circumferentially evenly offering some restrain tanks, and suppress with second that width, length, the physical dimension of cover 3 front end restrain tanks is identical, quantity is equal, its suit and point are welded in second to be suppressed outside the cover 3, its end face end face with it is concordant, and its restrain tank and second restrain tank that suppresses cover 3 are dislocation and symmetry status.Outer lateral inhibition cover 4 suits and point are welded in the 3rd to be suppressed outside the cover 8, and its end face protrudes from the end face of the 3rd inhibition cover 8, and the axial distance of protrusion is the material thickness of cover plate 7.In the space, be filled with microwave radiation absorbing material 5 between lateral inhibition cover 4 and the 3rd suppresses to cover 8 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 faces, and inner surface props up irradiator 1, second and suppresses the front end face that cover the 3 and the 3rd suppresses cover 8, adopts bonding agent each contact surface that is adhesively fixed.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 the microwave heat therapeutic irradiator that microwave leaks energy, and assembling process is as follows:
Suppress cover 3 para-positions with second earlier and be set on the cylindrical of irradiator housing 1, utilize specific purpose tool and weld jig, guarantee that both end faces are concordant, both restrain tanks are dislocation and symmetry status, spot welding is fixed it on mash welder.Suppress cover 8 with the 3rd and be set on the cylindrical of the second inhibition cover 3 along the 1 axial para-position of irradiator housing, utilize specific purpose tool and weld jig, guarantee that both end faces are concordant, both restrain tanks are dislocation and symmetry status, spot welding is fixed it on mash welder.Just outer lateral inhibition cover 4 is set on the cylindrical of the 3rd inhibition cover 8 along the 1 axial para-position of irradiator housing again, utilize specific purpose tool and weld jig, guarantee that outer lateral inhibition cover 4 protrudes from the 3rd and suppresses cover 8 end faces, outstanding axial distance is the material thickness of cover plate 7, fixes it at mash welder.In the space, fill microwave radiation absorbing material 5 between lateral inhibition cover 4 and the 3rd suppresses to cover 8 outside, strict proportioning of pressing material, absorbing material should be filled up to concordant with the end face of outer lateral inhibition cover 4, treats that absorbing material solidifies.Antenna module 2 is passed the bottom outlet of irradiator housing 1, be fastened on the rear end of irradiator housing 1 with screw.
After this, irradiator antenna performance and parameter index are also adjusted in check point welding quality, test, comprise that the check microwave leaks the energy 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 the end face that cover the 3 and the 3rd suppresses cover 8, and bonding agent is spread upon each contact surface in advance, is adhesively fixed.At last, with quick formula clip, the anti-microwave radiation fiber door curtain made of cloth is fastened on outside the cylindrical shell of irradiator 1.So far, finish the assembling of the embodiment of the invention two.
Show by present embodiment one, the assembling of two exemplar and test result, band of the present invention suppresses the microwave heat therapeutic irradiator that microwave leaks energy, used reactive and resistive and suppressed the principle of microwave leakage energy and the structure of Multiple Combination such as micro-wave screening and microwave protection, it can be effective that microwave heat therapeutic is suppressed the microwave leakage with irradiator.
The present invention's principle combinative structure can promote the use of the microwave heat therapeutic of various abnormal shapes well with on the irradiator.To powerful microwave diathermy machine (equipment), design according to suitable type especially, control " should be able to fully prevent the radiation risk that microwave leakage produces ", have 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 requirement of the present invention.
Claims (8)
1. band suppresses the microwave heat therapeutic irradiator that microwave leaks energy, comprise: as the irradiator housing of the first inhibition cover, antenna module, cover plate, the end face of described irradiator housing is along circumferentially evenly offering restrain tank, it is characterized in that: also comprise from inside to outside being set in second outer inhibition cover and the outer lateral inhibition cover of irradiator housing according to the order of sequence, 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 is in the end face of the second inhibition cover, described second suppresses to be filled with radiation-absorbing material between cover and the outer lateral inhibition cover, described second suppresses the cover end face along circumferentially evenly offering restrain tank, the restrain tank geomery that the restrain tank of described irradiator housing and second suppresses cover is identical, quantity equates and symmetry is dislocatedly distributed, and 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 inhibition 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, its outer surface is concordant with the end face of outer lateral inhibition cover, and its inner surface props up second and suppresses cover end face and irradiator end face, and described step inserts the endoporus of irradiator housing front end.
4. microwave heat therapeutic irradiator according to claim 3 is characterized in that: described cover plate by bonding agent suppress cover with irradiator housing, second respectively, outer lateral inhibition cover is fixed.
5. microwave heat therapeutic irradiator according to claim 1 is characterized in that: also include and be enclosed within the outer anti-microwave radiation fiber door curtain made of cloth of described outer lateral inhibition cover, the tail end of the described anti-microwave radiation fiber door curtain made of cloth is connected with the irradiator housing.
6. microwave heat therapeutic irradiator according to claim 5, it 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 have one and be arranged at second the 3rd inhibition cover that suppresses between cover and the outer lateral inhibition cover, described radiation-absorbing material is filled in the described the 3rd to be suppressed between cover and the outer lateral inhibition cover, described the 3rd inhibition cover and second suppresses the cover outer end and flushes, the 3rd suppresses the cover end face along circumferentially evenly offering restrain tank, the restrain tank geomery that the described the 3rd restrain tank and second that suppresses cover suppresses cover is identical, and quantity equates and symmetry is dislocatedly distributed.
8. microwave heat therapeutic irradiator according to claim 7, it 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 to be suppressed cover end face and the 3rd and suppresses the cover end face.
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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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| 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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| CN103203077B CN103203077B (en) | 2016-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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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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 |
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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 |
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| CN103203077B (en) | 2016-03-02 |
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