Medical microwave magnetron and micro-wave therapeutic equipment with multichannel output
The medical microwave magnetron and the micro-wave therapeutic equipment of tool multichannel output of the present invention relate to the medical microwave magnetron, specially refer to microwave magnetron coupling cavity and micro-wave therapeutic equipment technical field.
Micro-wave therapeutic equipment is presented microwave energy to a radiator and is carried out clinical treatment generally by single microwave source, and for example patent No. ZL 9010429.4 has the microwave therapy apparatus of firm power output, is exactly the output of single channel microwave.
The 146 serial magnetrons of selling in the market of making by Chinese rainbow photoelectron pipe factory, and the 2M210-M of MAT's manufacturing, the 2M172A magnetron that Toshiba makes, be applicable to that household microwave oven as shown in Figure 1, this continuous wave magnetron needs export microwave energy with waveguide mode, still be referred to as waveguide output type magnetron.For clinical radiator easy to operate, medical microwave therapeutic equipment great majority coaxial cable Transmission Microwave energy, therefore need a coupling cavity between cable and the magnetron, people wish that coupling cavity and this magnetron are combined as a whole, like this as long as the cable socket on coaxial fitting and the coupling cavity joins, just can be fed to radiator to microwave energy through cable and carry out clinical treatment to lesions position, present micro-wave therapeutic equipment is carried out clinical treatment by single microwave source for a radiator substantially, so new medical microwave magnetron that coupling cavity and continuous wave magnetron are combined as a whole, can have the function of multichannel output microwave, become the problem that people thirst for solving.
Purpose of the present invention: can not export microwave with cable and multichannel for existing waveguide output type magnetron, so the present invention transforms waveguide output type magnetron, formed medical microwave magnetron has multichannel output, and available coaxial cable Transmission Microwave energy, use the micro-wave therapeutic equipment that this medical microwave magnetron with multichannel output is made, having solved by single microwave source provides microwave energy that the patient is carried out the technical problem of clinical treatment to a plurality of radiators simultaneously, thereby improves the micro-wave therapeutic usage ratio of equipment.
A kind of medical microwave magnetron with multichannel output on the output stage [1] of waveguide output type magnetron, is lived by cylindricality coupling cavity concentric locking collar, and the loam cake [2] of cylindricality coupling cavity is provided with cable accessory power outlet [3]; Or on the cylinder [4] of cylindricality coupling cavity cable accessory power outlet [3] is set; Or on the loam cake [2] of cylindricality coupling cavity and the cylinder [3] cable accessory power outlet [3] is set simultaneously, for the electric coupling in the cylindricality coupling cavity; Or for the coupling loop [5] in the cylindricality coupling cavity; Or supplying electric coupling and coupling loop in the cylindricality coupling cavity that microwave energy is drawn through cable accessory power outlet [3], the bottom [6] of cylindricality coupling cavity also can not established this bottom [6] ringwise.
Medical microwave magnetron with multichannel output of the present invention is to have added the realization of cylindricality coupling cavity on the basis of waveguide output type magnetron.The magnetron of waveguide output type needs with waveguide microwave energy to be drawn, and the present invention draws microwave energy through cable accessory power outlet [3] with the cylindricality coupling cavity.This cylindricality coupling cavity internal diameter is 30~130mm, and high 30~150mm, concentric locking collar are provided with cable accessory power outlet [3] at the loam cake [2] of cylindricality coupling cavity on the output stage [1] of waveguide output type magnetron, be generally 1 to 4; Or on the cylinder [4] of cylindricality coupling cavity cable accessory power outlet [3] is set, be generally 1 to 4; Or on the loam cake [2] of cylindricality coupling cavity and the cylinder [4] accessory power outlet [3] is set simultaneously, be generally 1 to 8, this cable accessory power outlet [3] is the coaxial cable accessory power outlet [3] of standard, the outer conductor of this cable accessory power outlet [3] and cylindricality coupling cavity is connected, and the interior electric coupling of the inner wire of cable accessory power outlet [3] and cylindricality coupling cavity is connected; Or be connected with coupling loop [5].Cylindricality coupling cavity has disposed bottom [6] ringwise, and the output stage [1] of waveguide output type magnetron is in the accurate coaxial insertion cylindricality coupling cavity of coupling cavity bottom centre bore.In the less demanding occasion of some coupling cavity quality factor, the design of coupling cavity can not wanted bottom [6], utilizes this magnetron upper cover plate [7] to substitute the good coupling output that this coupling cavity bottom [6] still can be realized microwave energy.Electric coupling has two kinds: one, electric coupling are spill cap [8] shape, are buckled on the output stage [1] of this magnetron, draw lead and be connected with the inner wire of cable accessory power outlet [3] on spill cap [8].They are two years old, electric coupling is rod [9] shape, length is 10~90mm, one end is unsettled, rod [9] is parallel with the cylinder [4] of cylindricality coupling cavity, place the side of magnetron output stage [1], the other end is connected with the inner wire of corresponding cable accessory power outlet [3] respectively, when rod [9] the shape electric coupling in the cylindricality coupling cavity is provided with two when above, allow the length between each coupling bar [9] different, each coupling bar [9] also can be different at a distance of the distance of the output stage [1] of magnetron, this species diversity causes the difference of the microwave energy of each electric coupling coupling, thereby realizes the microwave energy output that each road is different.Coupling loop [5] is commonly referred to as magnetic coupler, the one end is connected with the inner wire of cable accessory power outlet [3], the other end is connected with the outer conductor of cable accessory power outlet [3], coupling loop [5] around the big I of area identical or different, its area is 0.5~6 square centimeter, this species diversity makes the microwave energy difference that is coupled out, coupling loop [5] around shape be generally rectangle.In cylindricality coupling cavity, can install electric coupling and coupling loop [5] simultaneously.Coupling loop [5] and coupling bar [9] can turn to coupling loop [5] in the cylindricality coupling cavity or as coupling bar [9] along extending by the inner wire of cable accessory power outlet [3].
A kind of medical microwave therapeutic equipment with multichannel output, by microwave generating source, control circuit, form with microwave radiometer, wherein microwave generating source has adopted the above-mentioned medical microwave magnetron with multichannel output, because this magnetron has the microwave energy that a plurality of cable accessory power outlets [3] provide complete machine, is the patient treatment disease so this micro-wave therapeutic equipment can provide 1 to 8 radiator simultaneously.Length and the position difference in column type coupling cavity when coupling bar [9] in the medical microwave magnetron with multichannel output; Or coupling loop [5] around the area difference, can make the microwave energy difference of every road cable accessory power outlet [3] output, provide convenience to medical personnel like this, to different patients' different illness; Or same patient's different focuses zone is applied different microwave powers carry out clinical treatment.
The present invention be domestic and international household microwave oven magnetron fit on the cylindricality coupling cavity, a plurality of cable accessory power outlets [3] are arranged on the coupling cavity, can make single microwave source become multichannel microwave output like this, this feature that the present invention had does not make original magnetron become huge, take up space little than mode on the contrary with waveguide output microwave, with the cable Transmission Microwave is very convenient, and this does not promptly take up space again with respect to waveguide flexibly.We are this microwave magnetron with multichannel output, be applied on the micro-wave therapeutic equipment, the function that is had when making an equipment become many, changed traditional single microwave source and only supplied the mode of a radiator patient treatment, micro-wave therapeutic equipment with multichannel output of the present invention can be supplied with a plurality of radiators simultaneously to patient treatment, because a micro-wave therapeutic equipment carries out many human therapies simultaneously, this renewal to the traditional microwave therapeutic equipment, the effect of micro-wave therapeutic equipment is doubled and redoubled, and not changing the basic structure of this equipment, this is undoubtedly a kind of progress.
Description of drawings
Fig. 1. microwave oven continuous wave magnetron schematic diagram
Fig. 2. on be covered with the magnetron schematic diagram of the electric coupling mode of 3 cable accessory power outlets
Fig. 3. respectively be provided with the magnetron schematic diagram of the electric coupling mode of 1 cable accessory power outlet on loam cake and the cylinder
Fig. 4. on be covered with the magnetron schematic diagram of the magnetic coupling mode of 2 cable accessory power outlets
Fig. 5. cylinder is provided with the magnetron schematic diagram of the magnetic coupling mode of 2 cable accessory power outlets
Embodiment one: as shown in Figure 2, making its internal diameter of cylindricality coupling cavity is 30mm, height is 30mm, at loam cake three cable accessory power outlets [3] are set, the center that is loam cake [2] is provided with one, be symmetrical arranged two with loam cake [2] center, in cylindricality coupling cavity, use the electric coupling that is spill cap [8], be buckled on the waveguide output type magnetron output stage [1], and the inner wire of spill cap [8] with the cable accessory power outlet [3] of loam cake [2] center is connected with lead, be connected with rod [9] shape electric coupling respectively with the inner wire of symmetrical two the cable accessory power outlets [3] placed in loam cake [2] center in addition, the length of rod [9] is 18mm, distance apart from magnetron output stage [1] is 3mm, and the diameter of rod [9] is 1.5mm.
Embodiment two: as shown in Figure 3, making its internal diameter of cylindricality coupling cavity is 50mm, height is 60mm, a cable accessory power outlet [3] is set outside loam cake [2] is non-central, its inner wire is connected with rod [9] electric coupling, the length of rod [9] is 50mm, is 8mm apart from the distance of magnetron output stage [1], and the diameter of rod [9] is 1.5mm.[3] one of cable accessory power outlets are set on cylindricality coupling cavity scapus face [4] in addition, are buckled on the magnetron output stage [1], the inner wire of spill cap [8] and cable accessory power outlet [3] is coupled together with lead with the electric coupling that is spill cap [8].
Embodiment three: as shown in Figure 4, making its internal diameter of cylindricality coupling cavity is 130mm, height is 150mm, at loam cake [2] uniform two, or three, or four cable accessory power outlets [3], coupling loop [5] the one end in the cylindricality coupling cavity is connected with the inner wire of cable accessory power outlet [3], the other end is connected with the outer conductor of cable accessory power outlet [3], coupling loop [5] around area be 0.5~6cm
2, between each coupling loop [5] around area can be identical or different, for example, have in the cylindricality coupling cavity two coupling loops [5] its around area be respectively 3cm
2, 6cm
2; Or have in the cylindricality coupling cavity three coupling loops [5] its around area be respectively 2cm
2, 4cm
2, 6cm
2; Or it is respectively 0.5cm around area in the cylindricality coupling cavity four coupling loops [5]
2, 1.5cm
2, 3.5cm
2, 5.5cm
2Coupling loop [5] should be placed on the interior meridian plane of cylindricality coupling cavity, as shown in Figure 4.
Embodiment four: as shown in Figure 5, making its internal diameter of cylindricality coupling cavity is 100cm, height is 100cm, cylinder [4] at cylindricality coupling cavity is gone up uniform two, or three, or four cable accessory power outlets [3], coupling loop [5] the one end in the cylindricality coupler cavity is connected with the inner wire of cable accessory power outlet [3], the other end is connected with the outer conductor of cable accessory power outlet [3], coupling loop [5] around area be 0.5~6cm
2, between the coupling loop [5] around area can be identical or different, for example, have in the cylindricality coupling cavity two coupling loops [5] its around area be respectively 3cm
2, 6cm
2; Or have in the cylindricality coupling cavity three coupling loops [5] its around area be respectively 2cm
2, 4cm
2, 6cm
2; Or have in the cylindricality coupling cavity four coupling loops [5] its around area be respectively 0.5cm
2, 1.5cm
2, 3.5cm
2, 5.5cm
2Coupling loop [5] should be placed on the interior meridian plane of cylindricality coupling cavity, as shown in Figure 5.
Embodiment five: as Fig. 2, shown in Figure 5, can merge into one to these two cylindricality coupling cavitys, its internal diameter is 90cm, height is 80cm, the position of the cable accessory power outlet [3] on cylindricality coupling cavity, and the making of electric coupling and coupling loop [5] gets final product by embodiment one and four requirement, but the length of rod [9] should be 60cm.
Embodiment six: as shown in Figure 3, Figure 4, also can merge into one to these two cylindricality coupling cavitys, the internal diameter of its this coupling cavity is 80cm, height is 50cm, cable accessory power outlet [3] on the cylindricality coupling cavity can be by Fig. 3, setting shown in Figure 4, the making of electric coupling and coupling loop [5] gets final product by embodiment two and three requirement, but the length of rod [9] should be 30cm.
It can be electric coupling or coupling loop [5] that aforesaid embodiment can be provided with its coupled modes of a cable accessory power outlet [3] on the cylindricality coupling cavity as can be seen at least, it can be electric coupling and coupling loop [5] that eight or its coupled modes of nine cable accessory power outlets [3] can be set at most, for example loam cake [2] is provided with four cable accessory power outlets [3], coupling loop [5] in the cylindricality coupling cavity is by 45 ° of distributions, or loam cake [2] is provided with 5 cable accessory power outlets [3], mode with electric coupling is coupled, on the cylinder [4] of cylindricality coupling cavity 4 cable accessory power outlets [3] are set, are coupled in coupling loop [5] mode.As seen the layout of the set cable accessory power outlet of the medical microwave magnetron with multichannel [3] on cylindricality coupling cavity by setting of the present invention is not limited to the above embodiments.Requirement designs the bottom [6] of cylindricality coupling cavity of the present invention according to the microwave coupling effect, and in the less demanding occasion of some coupling cavity quality factor, the design of coupling cavity is this bottom [6] not.
The 146 type microwave oven continuous wave magnetrons that the cylindricality of the above embodiments made coupling cavity is all made with Chinese rainbow photoelectron pipe factory, or the 2M210-M type magnetron pack of MAT's manufacturing synthesizes and has the medical microwave magnetron that multichannel is exported.
Embodiment seven: a kind of medical microwave therapeutic equipment with multichannel output, by micro-wave resonator circuit, control circuit, form with microwave radiometer, wherein the microwave source in the micro-wave resonator circuit has adopted the described medical microwave magnetron with multichannel output of the above embodiments, if this magnetron is made single channel output and also is fine, the present invention comprises only a cable accessory power outlet [3].When adopting, we have multichannel output medical microwave magnetron, so just can be with a plurality of microwave radiometers simultaneously illness to be made radiation therapy, select magnetron of the present invention can make the microwave power size of each road output the same, also can be different, these depend on the length of rod [9] the shape electric coupling in the cylindricality coupling cavity and position and coupling loop [5] around the size of area, as seen this medical microwave magnetron with multichannel output is used on micro-wave therapeutic equipment, not only can treat many people simultaneously, also can be according to the different demand of patient treatment is applied different microwave energies.