CN1030217C - Medical microwave power distributor and multi-way output microwave therapeutic device - Google Patents
Medical microwave power distributor and multi-way output microwave therapeutic device Download PDFInfo
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- CN1030217C CN1030217C CN 93120910 CN93120910A CN1030217C CN 1030217 C CN1030217 C CN 1030217C CN 93120910 CN93120910 CN 93120910 CN 93120910 A CN93120910 A CN 93120910A CN 1030217 C CN1030217 C CN 1030217C
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Abstract
The present invention discloses a medical microwave power divider and a multi-output microwave treating device, which relates to the technical field of microwave circulators and microwave treating devices. The multi-output microwave treating device which is manufactured by the medical microwave power divider of the present invention solves the technical problem that multiple microwave output is provided by a single microwave source in medical microwave treating devices. In the medical microwave power divider, a permanent magnet removed from a stripline junction circulator is replaced by an electromagnet so that the vertical stripline tee in the direction of a magnetic field is realized. A microwave source provides microwave energy to multiple radiators through the medical microwave divider. The present invention is mainly used in the field of medical microwave treating devices.
Description
Medical micro-wave power distributor of the present invention and multichannel output microwave therapy equipment relate to the medical microwave technology, specially refer to microwave circulator and micro-wave therapeutic equipment technical field.
Medical microwave equipment is single channel output microwave energy substantially at present, promptly connect a microwave radiometer focus is carried out irradiation treatment, can not be by a microwave source to a plurality of radiator Transmission Microwave energy, documents one: China Patent No. ZL9010429.4 has the microwave therapy apparatus of firm power output, and this therapy apparatus only can connect a microwave radiometer and carry out clinical treatment.
Documents two: microwave ferrite and technology, Jiang Renpei etc. write, and the 380th page, in April, 1984, China Science Press published.This documents has been introduced strip line circulator and has been made of a Y shape knot inner wire, be commonly called as band line Y circulator, its internal structure as shown in Figure 1, in two ferrites (2) disk up and down, placing a Y-bandage line inner wire (8), place outer conductor (9) outside ferrite (2), and apply the stationary magnetic field, its magnetic direction and ferrite surface are perpendicular.According to the nonreciprocal scattering properties of magnetized ferrite, the nonreciprocal structure of this symmetry can satisfy belt condition under certain condition.This band toe-in circulator can make circulator broadband with regard to the shape difference of inner wire, two Y-bandage line inner wires (10) structure as shown in Figure 2, so this circulator is two Y junction circulators, this inner wire (10) is integral by a big Y knot and a little Y roped party, big Y knot crosses one another into 60 ° of angles with little Y knot, and the brachium of little Y knot is about 0.8 times of ferrite radius.Two kinds of bands of this of above-mentioned introduction toe-in circulator, the magnetic field that is applied is all perpendicular to Y-bandage line inner wire (8) or two Y-bandage line inner wires (10), the function of this circulator is: as shown in Figure 3, when microwave is imported from port (11), port (12) is isolated so, microwave will be by port (13) output, and when port exchanged successively, the effect of going in ring was constant.Therefore circulator can not be used for the microwave power distribution.
Purpose of the present invention: because present micro-wave therapeutic equipment is treated the patient for a radiator by single microwave source substantially; And microwave band toe-in circulator can not be imported microwave by certain port, two other port output microwave.So the present invention transforms existing band toe-in circulator, other two ports can promptly solve the technical problem that microwave power distributes by the control ratio output microwave of setting when having solved a port input of circulator microwave.Can control the allocation proportion of two ports output microwave power so artificially.So the present invention utilizes this microwave power divider, realized to a plurality of radiator energizes the patient being treated with single microwave source, can improve the micro-wave therapeutic usage ratio of equipment like this.
A kind of medical micro-wave power distributor, by two ferrites (2) are housed in the copper shell (1), between these two ferrites (2), pressed from both sides a slice band line threeway (3), this band line threeway (3) links with the inner wire (4) of three cable joints respectively, the outer conductor of cable joint (5) is connected with copper shell (1), go up installation electromagnet (6) at copper shell (1), the magnetic direction that is produced is perpendicular to band line threeway (3), to this electromagnet (6) coil (7) power supply, a control circuit is being controlled the waveform of this power supply out-put supply by a power supply, size, direction and cycle.
Medical micro-wave power distributor of the present invention is the improvement on band toe-in circulator, and the threeway of described band line is exactly the inner wire in this circulator, and it has two kinds of shapes: Y shape and two Y shape.As depicted in figs. 1 and 2.Strip line circulator as shown in Figure 3, its internal structure signal of its B-B profile as shown in Figure 4, up and down between two ferrites (2) disk, place the band line threeway (3) of a Y shape or two Y shapes, a copper shell (1) is surrounded ferrite (2) and band line threeway (3), the inner wire (4) that three cable joints are arranged, be connected with band line threeway (3) respectively, the outer conductor of cable joint (5) is connected with copper shell (1), place two blocks of permanent magnets (14) disk respectively in copper shell (1) outside, make magnetic field vertically pass band line threeway (3).The present invention removes two blocks of permanent magnets (14) disk, change electromagnet (6), the geometry of its magnetic pole is identical with permanent magnet (14), and make magnetic field vertically pass band line threeway (3), so the profile of this medical micro-wave power distributor is basic similar to circulator, all have three ports, as shown in Figure 5, its internal structure schematic diagram of its A-A profile as shown in Figure 6, electromagnet shown in the figure (6) is only as a signal, can be made into difform electromagnet (6), but the pole form of electromagnet (6) should be identical with permanent magnet (14) disk with magnetic field intensity, because electromagnet (6) needs the outside to provide electric current to produce magnetic field, so want a power supply and microwave power divider adapted, and remove to control the coil that power supply is electromagnet (6) (7) supply of current by a control circuit, general this control circuit can be finished by computer, so this power supply inside should have interface circuit to match with computer, make the current waveform of this power supply output, size, direction and cycle should be as shown in Figure 7, wherein I represents electric current, the t express time.The magnetic field intensity that the size of electric current I should make the coil (7) of electromagnet (6) be produced is consistent with the magnetic field intensity of permanent magnet (14) in the original tape toe-in circulator.When only having positive current to be defeated by the coil of electromagnet (6) (7), microwave power divider microwave inlet port (11) as shown in Figure 5, port (12) is isolated, and port (13) has microwave output; Microwave inlet port (11) when only having negative current to be defeated by the coil of electromagnet (6) (7), port (12) have microwave output, and port (13) is isolated; When positive-negative power alternately is defeated by the coil (7) of electromagnet (6), the duty ratio t of its CURRENT DISTRIBUTION
1/ t
2=1 o'clock, then the power averaging of microwave inlet port (11) was distributed to port (12) and port (13) output; Work as t
1/ t
2＞1 o'clock, the microwave power of port (12) output was greater than port (13); Work as t
1/ t
2＜1 o'clock, the microwave power of port (12) output was less than port (13).From the above, this microwave power divider not only can carry out power division but also keep the function of circulator microwave.
We are applied to this medical micro-wave power distributor on the micro-wave therapeutic equipment, just constitute the micro-wave therapeutic equipment with multichannel output, by the microwave energy of microwave magnetron output, through the medical micro-wave power distributor to microwave radiometer Transmission Microwave energy.Therefore, through a plurality of various combinations of microwave power divider as the aforementioned, just form the multichannel output of microwave by single microwave source.Can carry out the microwave rehabilitation to several patients simultaneously like this.For example, when using a microwave power divider, the output of two-way microwave just can be arranged; 3 microwave power divider compound modes have been provided among Fig. 8, then a micro-wave therapeutic equipment can be with 4 microwave radiometers, this medical micro-wave power distributor should comprise the power supply of supplying with electromagnet (6) coil (7) and the control circuit of controlling this power supply, could realize the power division of microwave, and this power supply and control circuit all are general prior art problems for the technical staff who designs micro-wave therapeutic equipment, the simplest structure is to power to electromagnet (6) coil (7) with the two-way DC power supply of exportable generating positive and negative voltage, switch to supply with the sense of current of electromagnet (6) coil (7) with relay, the action of removing control relay with a time dependent DC pulse.Micro-wave therapeutic equipment generally all has the adjusting device of microwave output gross power, is used with the medical micro-wave power distributor, then controls the output of each road power more easily.
Medical micro-wave power distributor of the present invention, be to have replaced the interior permanent magnet (14) of band toe-in circulator by electromagnet (6), also increased the relevant circuit that electric current is provided to electromagnet (6) coil (7) simultaneously, so this medical micro-wave power distributor not only can be exported microwave by two ports in proportion to the microwave energy of input, and can also keep the function of former circulator.Micro-wave therapeutic equipment with multichannel output of the present invention has been used this medical micro-wave power distributor just, therefore can carry out many human therapies simultaneously by a micro-wave therapeutic equipment, this is the renewal to the traditional microwave therapeutic equipment, though the micro-wave therapeutic equipment cost of the micro-wave therapeutic equipment of a multichannel output and a single channel output is more or less the same, the effect of being brought into play differs many times.In sum, this microwave power divider is undoubtedly a kind of positive progress with the micro-wave therapeutic equipment with multichannel output.
Description of drawings:
Fig. 1 Y circulator schematic diagram
The two Y circulator schematic diagrames of Fig. 2
Fig. 3 band toe-in circulator schematic diagram
Fig. 4 is the B-B cutaway view of Fig. 3
Fig. 5 medical micro-wave power distributor
Fig. 6 is the A-A cutaway view of Fig. 5
Fig. 7 imposes on the electromagnet coil current distribution schematic diagram
Fig. 8 has the micro-wave therapeutic equipment block scheme of four tunnel outputs
Embodiment one: the medical micro-wave power distributor
At first should possess band toe-in circulator shown in Figure 3, make an electromagnet (6) then, the geometry of its magnetic pole is identical with permanent magnet (14), the magnetic direction that this electromagnet (6) produces is consistent with permanent magnet (14), magnetic field intensity 〉=100 Gausses, replace permanent magnet (14) on the circulator with this electromagnet (6), provided the assembly structure of electromagnet (6) among Fig. 6, when electromagnet (6) satisfies the requirement of the geometry of above-mentioned magnetic field intensity, direction and magnetic pole, allow the structure variation of electromagnet (6).Can provide the power supply of reversal output to power with one to this electromagnet (6) coil (7), this power supply goes control by a control circuit, generally all adopt microcomputer or single-chip microcomputer to prepare corresponding interface circuits again and remove to control this power supply, requirement should be satisfied CURRENT DISTRIBUTION illustrated in Figure 7 to the CURRENT DISTRIBUTION that electromagnet (6) coil (7) provides, because this power supply institute loading is an inductance component, can allow the rugged change of CURRENT DISTRIBUTION square-wave curve illustrated in Figure 7.When using this medical micro-wave power distributor, apply as shown in Figure 7 CURRENT DISTRIBUTION to electromagnet (6) coil (7), then microwave is after port (11) input, alternately export microwave from port (12) and port (13), if the sense of current is constant is that the magnetic direction of electromagnet (6) is constant, then a port (12) or port (13) output microwave only.
Embodiment two: the micro-wave therapeutic equipment with multichannel output
We receive the port (11) of the medical micro-wave power distributor of embodiment one on the microwave output port in the micro-wave resonator circuit, microwave power distributes should mix corresponding power supply and control circuit, port (12) and port (13) at microwave power divider connect microwave radiometer, can realize carrying out two tunnel outputs by single microwave source.In like manner, micro-wave therapeutic equipment block scheme as shown in Figure 8 with four tunnel outputs, we can connect a medical micro-wave power distributor on the microwave output port in micro-wave resonator circuit according to this figure, join with two medical micro-wave power distributors respectively by this power divider again, so can be to four microwave radiometer Transmission Microwave energy, each microwave power divider will be equipped with a power supply, removes to control these power supplys with a control circuit.Method of attachment according to above-mentioned microwave output just can realize by single microwave source to two; Or four; Or eight radiator output microwave energies, if control circuit makes the sense of current of electromagnet (6) coil (7) on certain medical microwave distributor constant, can realize to one; Or three; Or five; Or seven radiator output microwave energies.The output microwave energy of each above-mentioned radiator is removed to control the t of the CURRENT DISTRIBUTION on electromagnet (6) coil (7) by control circuit
1/ t
2Value realizes.
Claims (6)
1, a kind of medical micro-wave power distributor, by two ferrites (2) are housed in the copper shell (1), between these two ferrites (2), clip a slice band line threeway (3), this band line threeway (3) is connected with the inner wire (4) of three cable joints respectively, the outer conductor of cable joint (5) is connected with copper shell (1), it is characterized in that going up installation electromagnet (6) at copper shell (1), the magnetic direction that is produced is perpendicular to band line threeway (3), to this electromagnet (6) coil (7) power supply, a control circuit removes to control the waveform of this power supply out-put supply by a power supply, size, direction and cycle.
2, medical micro-wave power distributor according to claim 1 is characterized in that magnetic field intensity 〉=100 Gausses that electromagnet (6) is produced.
3, a kind of micro-wave therapeutic equipment with multichannel output, power by microwave oscillator output, through the medical micro-wave power distributor to microwave radiometer Transmission Microwave energy, this medical micro-wave power distributor is by a copper shell (1), in two ferrites (2) are housed, between these two ferrites (2), clip a slice band line threeway (3), this band line threeway (3) is connected with the inner wire (4) of three cable joints respectively, the outer conductor of cable joint (5) is connected with copper shell (1), it is characterized in that going up installation electromagnet (6) at copper shell (1), the magnetic direction that is produced is perpendicular to band line threeway (3), to this electromagnet (6) coil (7) power supply, a control circuit removes to control the waveform of this power supply out-put supply by a power supply, size, direction and cycle.
4, the micro-wave therapeutic equipment with multichannel output according to claim 3 is characterized in that magnetic field intensity 〉=100 Gausses that electromagnet (6) is produced.
5, the micro-wave therapeutic equipment with multichannel output according to claim 3 is characterized in that by a medical micro-wave power distributor to two microwave radiometer transmission of power.
6, the micro-wave therapeutic equipment with multichannel output according to claim 3 is characterized in that being connected to four microwave radiometer transmission of power with two medical micro-wave power distributors by a medical micro-wave power distributor again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120910 CN1030217C (en) | 1993-12-18 | 1993-12-18 | Medical microwave power distributor and multi-way output microwave therapeutic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120910 CN1030217C (en) | 1993-12-18 | 1993-12-18 | Medical microwave power distributor and multi-way output microwave therapeutic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1089178A CN1089178A (en) | 1994-07-13 |
| CN1030217C true CN1030217C (en) | 1995-11-01 |
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ID=4993456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93120910 Expired - Fee Related CN1030217C (en) | 1993-12-18 | 1993-12-18 | Medical microwave power distributor and multi-way output microwave therapeutic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030217C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007015544B4 (en) * | 2007-03-30 | 2011-01-27 | Siemens Ag | Circulator, circulator operating method, magnetic resonance antenna device with such a circulator and magnetic resonance apparatus with such a manganese resonance antenna device |
| CN108392741B (en) * | 2018-04-04 | 2024-03-29 | 西安大医集团股份有限公司 | Microwave power control device and radiotherapy equipment |
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1993
- 1993-12-18 CN CN 93120910 patent/CN1030217C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1089178A (en) | 1994-07-13 |
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