CN1089177A - A kind of microware radiating heat to human body method and device - Google Patents
A kind of microware radiating heat to human body method and device Download PDFInfo
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- CN1089177A CN1089177A CN 92106864 CN92106864A CN1089177A CN 1089177 A CN1089177 A CN 1089177A CN 92106864 CN92106864 CN 92106864 CN 92106864 A CN92106864 A CN 92106864A CN 1089177 A CN1089177 A CN 1089177A
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Abstract
The present invention is relevant a kind of microware radiating heat to human body method and device, it is the rule according to the Microwave Power Density decay, on the basis that has the formula transthermia now, the actinal surface of microwave radiometer is left human body by the distance of diathermanous position body surface 15～70cm, simultaneously, before the microwave radiometer actinal surface, add a focusing arrangement, and strengthen the output of microwave power supply, the output of microwave power supply can be regulated automatically, and peak power is exported greater than 1.2kW continuously.This method and apparatus can solve preferably that depth of penetration heating is shallow, epidermis is easily burnt, heat problems such as inhomogeneous, is applicable to the various diseases treatment of human body and animal, is specially adapted to the treatment of human body deep cancer.
Description
The present invention is relevant a kind of microware radiating heat to human body method and device.
It is the important method that the mankind are used for the treatment of cancer and other human diseases that thermotherapy cooperates with radiotherapy or chemotherapy.Thermotherapy commonly used at present is to utilize the characteristics of the strong concentration of energy of the diathermanous ability of microwave, carries out microwave heat therapeutic, claims microwave diathermanous again.Its principle is to form a microwave field by the microwave that the microwave radiator actinal surface penetrates, and in microwave field, the polar molecule of tissue generates heat because of high speed rotating, and the temperature in the microwave field zone is risen obviously, thus kill cancer cell, or the activity of reduction cancerous cell.Be to adopt formula transthermia (See Attachment 1) at present in the world entirely, it is a microwave of being exported certain power by microwave power supply, actinal surface through microwave radiator, and directly its actinal surface is pressed close to human body and undertaken diathermanous by diathermanous position body surface, measure by the temperature at diathermanous position by temp measuring system, and with the Temperature Feedback that records to computer control and display system, thereby control and regulate the power of microwave power supply output, wherein the microwave power supply frequency is 915MHZ, and peak power output is less than 0.5KW continuously.Device according to this method manufacturing, as U.S. BSD-400 type microwave diathermy machine (seeing Appendix two), comprise microwave power supply 1, microwave radiator 2, temp measuring system 4, computer control and display system 5, wherein the continuous peak power of microwave power supply 1 is output as 400W, frequency is 915MHZ, temp measuring system 4 adopts optical fiber temperature measurement system, and microwave radiator 2 adopts garden waveguide irradiator, and computer control and display system adopt the IBM-PC machine.This apparatus features is that heating region is concentrated, and effectively depth of penetration heating is 3～4 centimetres.But 2 deficiencies are arranged, the one, owing to adopted the irradiator actinal surface is directly pressed close to human body to be heated the position body surface and to carry out diathermanously, body surface tissue is caused burn easily, the 2nd, depth of penetration heating is not enough, and is also just powerless to the tumor that human body deep device is dirty.Trace it to its cause, mainly be to press close to its microwave power in the formula transthermia to increase, and be hyperbolic decay with the distance of leaving the microwave radiator actinal surface.That is to say that Microwave Power Density sharply descends near near the irradiator actinal surface, it is very big to decay, and curve is very precipitous; Away from the irradiator actinal surface, Microwave Power Density changes mild, decays seldom, and curve is more smooth.Owing to press close to the formula transthermia is that the actinal surface of irradiator 2 is directly pressed close at human body by the body surface at diathermanous position, and therefore, its power attenuation is fairly obvious, certainly will cause body surface temperature height, and the low state of internal temperature, thereby cause above-mentioned deficiency.
In order to address the above problem, the various countries scholar does a lot of work in this respect, but makes a breakthrough not yet, but has developed other two kinds of diathermanous modes, i.e. intrusive mood transthermia and radio-heating method again.
The intrusive mood transthermia is by surgical operation, directly irradiator is inserted in patient's the cancerous tissue, and cancerous tissue is heated, because the method will cause additional wound, employ surgical operation, thereby is difficult to accept for patient.
The radio-heating method also is to utilize the strong characteristics of radio band electromagnetic wave penetration capacity, carries out diathermanous to the human body deep.As BSD-2000 type radio-frequency (RF) thermotherapeutic equipment (seeing Appendix two) produced in USA, the radio-frequency power supply frequency adjustable of this device, frequency range is 55MHZ to 120MHZ, output is 2KW, and output is delivered to four electrode couple of annular phased array antenna, and four electrode couple are contained on the transparent plastic cylinder, constitute the radio frequency irradiator, patient then puts into the cylinder center with the plastics sick bed, and the silicon rubber film water pocket of water-filling contacts with patient's body surface, cooling patient body surface.Though this device can solve the depth of penetration heating problem, because diathermanous scope is excessive, unnecessary harm has been caused at the normal position of human body, dangerous big, simultaneously, the radio frequency irradiator exists also that volume is big, the high deficiency of cost.
In view of the deficiency of above-mentioned several transthermias and device, invent a kind of new human body transthermia and device for being badly in need of.
The object of the present invention is to provide a kind of microware radiating heat to human body method and device, can overcome the deficiencies in the prior art, and have applied widely, depth of penetration heating big, to textura epidermoidea's damage less, characteristics such as homogeneous heating.
Solution of the present invention is the rule according to the Microwave Power Density decay, promptly near microwave radiator actinal surface place, the Microwave Power Density decay is big, and away from irradiator actinal surface place, the characteristics that the Microwave Power Density decay is very little, on the basis that has the formula transthermia now, directly the irradiator actinal surface being pressed close to human body is changed into by diathermanous position body surface the irradiator actinal surface is left human body by the distance of diathermanous position body surface 15～70cm, before the microwave radiator actinal surface, add simultaneously a focusing arrangement, and the output of increasing microwave power supply, the output of microwave power supply can be regulated automatically, and peak power is exported greater than 12kw continuously.Like this, can solve the deficiencies in the prior art preferably, and reach purpose of the present invention.
The present invention is a microwave of being exported certain power by microwave power supply, actinal surface through microwave radiator is undertaken diathermanous to human body by diathermanous position, measure by the temperature at diathermanous position by temp measuring system, and with the Temperature Feedback that records to computer control and display system, thereby control is also regulated the power that microwave power supply is exported, it is characterized in that the microwave radiator actinal surface leaves human body by the distance of diathermanous position body surface 15～70cm, before the microwave radiator actinal surface, add simultaneously a focusing arrangement, and the output of increasing microwave power supply, the output of microwave power supply can be regulated automatically, and peak power is exported greater than 1.2kw continuously.Its feature is that also the microwave radiator actinal surface is 30～50cm apart from human body by diathermanous position body surface, and the microwave power supply frequency adopts 915MHZ, and effect was for best when its peak power output was 2kw.According to the described device of said method, comprise microwave power supply, microwave radiator, temp measuring system, computer control and display system, export the microwave of certain power by microwave power supply, actinal surface by microwave radiator is undertaken diathermanous to human body by diathermanous position, measure by the temperature at diathermanous position by temp measuring system, and with the Temperature Feedback that records to computer control and display system, thereby control is also regulated the power that microwave power supply is exported, it is characterized in that also including a focusing arrangement, before focusing arrangement is arranged on the actinal surface of microwave radiator.Like this, microwave is focused on by focusing arrangement, make the thermal treatment zone concentrate on tumor tissues and near, to reduce the unnecessary issuable influence of heating to normal surrounding tissue.Its feature is that also focusing arrangement is made up of a shell and number of metal bead, and prill is arranged in lens-shaped by space lattice in the enclosure, and focal length can be 30～80cm.Its feature is that also the focal length of focusing arrangement is that 30～50cm adopts infrared radiation thermometer for best, its feature also are temp measuring system.When this device work, produce the microwave of certain power by microwave power supply, through microwave radiator, it is diathermanous by focusing arrangement human body to be heated the position, and controlled microwave irradiator actinal surface is heated the distance of position body surface 15～70cm apart from human body, by temp measuring system with the Temperature Feedback that records to computer control and display system, thereby regulate the power of microwave power supply output, control human body by the temperature at diathermanous position, reach the purpose of kill cancer cell or reduction tumor cell viability.
The present invention compared with prior art has following characteristics:
1. the present invention presses close to the formula transthermia owing to employing is non-, the decay of Microwave Power Density very little these characteristics that when leaving microwave radiator actinal surface certain distance, decay have been utilized, by the microwave radiator actinal surface being left human body by diathermanous position body surface certain distance, before the microwave radiator actinal surface, add a focusing arrangement, and the output of increasing microwave power supply, and peak power output is greater than this measure of 1.2kw continuously, be increased to more than 10 centimetres about making depth of penetration heating by original 3cm, maximum can reach 15 centimetres.
2. it is diathermanous that the present invention presses close to formula owing to employing is non-, and than pressing close to the formula transthermia, body surface is more even with inner heating, the internal temperature rising, and while body surface radiating effect is better, has avoided textura epidermoidea to burn.
3. the present invention makes by the hot injury of diathermanous position peripheral organs and greatly reduces owing to adopted focusing arrangement.
4. microwave power supply power of the present invention and irradiator actinal surface with can be cooperated adjustment by the distance between the body surface of diathermanous position, make this device scope of application bigger.
5. the present invention also can be used for other treatment of diseases of human body (sprain as arthritis, lumbar muscular injury, muscular strength etc.), and the mildew-resistant of disease treatment of animal and food is handled.
6. characteristics such as the present invention also has simply, cost is low, easy to use.
Fig. 1 is the block diagram of this device.
Fig. 2 is the main cutaway view of the focusing arrangement among the embodiment.
Fig. 3 is the A-A cutaway view of the focusing arrangement among the embodiment.
The present invention is further illustrated below in conjunction with drawings and Examples.
The present invention is the microwave by the certain power of microwave power supply 1 output, actinal surface through microwave radiator 2 is undertaken diathermanous to human body by diathermanous position, measure by the temperature at diathermanous position by temp measuring system 4, and with the Temperature Feedback that records to computer control and display system 5, thereby control is also regulated the power that microwave power supply 1 is exported, the actinal surface that the invention is characterized in microwave radiator 2 leaves human body by the distance of diathermanous position body surface 15～70cm, before the actinal surface of microwave radiator 2, add simultaneously a focusing arrangement, and the output of increasing microwave power supply 1, the output of microwave power supply 1 can be regulated automatically, and peak power is exported greater than 1.2kw continuously.Its feature is that also the actinal surface of microwave radiator 2 is 30～50cm apart from human body by diathermanous position body surface, and the frequency of microwave power supply 1 adopts 915MHZ, and its peak power output is that 2kw is best.According to the made device of this method, as shown in Figure 1, comprise microwave power supply 1, microwave radiator 2, temp measuring system 4, computer control and display system 5, microwave by the certain power of microwave power supply 1 output, actinal surface by microwave radiator 2 is undertaken diathermanous to human body by diathermanous position, measure by the temperature at diathermanous position by temp measuring system 4, and with the Temperature Feedback that records to computer control and display system 5, thereby control is also regulated the power that microwave power supply 1 is exported, it is characterized in that also comprising a focusing arrangement 3, before focusing arrangement 3 is arranged on the actinal surface of microwave radiator 2.By focusing arrangement 3 microwave is focused on like this, make the thermal treatment zone concentrate on tumor tissues and near, to reduce unnecessary infringement to normal surrounding tissue.Its feature is that also focusing arrangement 3 is made up of a shell 6 and number of metal bead 7, and prill 7 is arranged in lens-shaped by space lattice in shell 6, and focal length is 30～80cm.Its feature is that also the focal length of focusing arrangement 3 is 30～50cm the best.Can adopt foam plastics to make as Fig. 2 and shown in Figure 3, shell 6, it is a shell, is again the support member of prill 7.The diameter of prill 7 is 2.0～4.0cm, is preferably 2.0cm, can be medicine ball, also can be hollow ball, and the distance between each centre of sphere can be 2～5cm, is preferably 3cm.In addition, temperature measuring equipment 4 can be the optical fiber temperature-measurement device, also can be infrared radiation thermometer, is preferably infrared radiation thermometer; The a certain fixed frequency of the optional frequency 600MHZ～1500MHZ scope of microwave power supply 1 is preferably 915MHZ; Its maximum continuous power output at least should be greater than 1.2kw, as gets 2kw, and adjustable between 0～2kw, and it is the round irradiator of 15cm that microwave radiator 2 can adopt bore.Computer control and display system 5 can adopt the IBM-PC machine.Computer control and display system 5 adopt the I/O interface to be connected with temperature measuring equipment 4, adopt the I/O interface to be connected with microwave power supply 1.Microwave power supply 1 adopts coaxial cable to be connected with microwave radiator 2.Before 3 of focusing arrangements place the actinal surface of microwave radiator 2 separately.When using this device, microwave radiator 2 is aimed at human bodies by diathermanous position, and adjusts microwave radiator 2 and human body, be controlled between 15～70cm by the distance between the body surface of diathermanous position, simultaneously focusing arrangement 3 is placed the actinal surface of microwave radiator 2 separately before.When this device work, produce the microwave of certain power and frequency by microwave power supply 1, through irradiator 2, it is diathermanous to be heated the position by 3 pairs of human bodies of focusing arrangement, by infrared radiation thermometer 4, directly monitors to be heated district's shell temperature, and feed back to computer control and display system 5 is carried out information processing, by computer control and regulate the power of microwave power supply 1 output, control the temperature that is heated the position, thus kill cancer cell or reduce the activity of cancerous cell.Characteristics such as this device has simply, cost is low, easy to use, homogeneous heating, and depth of penetration heating is big, depth of penetration heating reaches more than the 10cm, and maximum can reach 15cm.
Attached zoopery test result:
Animal is the heavy live hog of 80kg, and the microwave power supply frequency is 915MHZ, and maximum continuous power output is 2kw, and diathermanous position is an abdominal part, and the actinal surface of microwave radiator 2 is 30cm apart from the distance of abdominal part, and its test result is:
As can be seen from the above results, heat penetration can reach more than the 10cm, and heating is very even, and shell temperature is lower than deep temperature, has reached purpose of the present invention.
Claims (6)
1, a kind of microware radiating heat to human body method, it is microwave by the certain power of microwave power supply 1 output, actinal surface through microwave radiator 2 is undertaken diathermanous to human body by diathermanous position, measure human body by the temperature at diathermanous position by temp measuring system 4, and with the Temperature Feedback that records to computer control and display system 5, thereby control is also regulated the power that microwave power supply 1 is exported, the actinal surface that the invention is characterized in microwave radiator 2 leaves human body by the distance of diathermanous position body surface 15～70cm, simultaneously, before the actinal surface of microwave radiator 2, add a focusing arrangement, and the output of increasing microwave power supply 1, the output of microwave power supply 1 can be regulated automatically, and peak power is exported greater than 1.2kw continuously.
2, a kind of microware radiating heat to human body method according to claim 1 is characterized in that the actinal surface of microwave radiator 2 is 30～50cm apart from human body by diathermanous position body surface, and the frequency of microwave power supply 1 adopts 915MHz, and its peak power output is that 2kw is best.
3, according to the described device of a kind of microware radiating heat to human body method, comprise microwave power supply 1, microwave radiator 2, temp measuring system 4, computer control and display system 5, microwave by the certain power of microwave power supply 1 output, actinal surface by microwave radiator 2 is undertaken diathermanous to human body by diathermanous position, measure human body by the temperature at diathermanous position by temp measuring system 4, and with the Temperature Feedback that records to computing mechanism control and display system 5, thereby the system control is also regulated the power that microwave power supply 1 is exported, it is characterized in that also including a focusing arrangement 3, before focusing arrangement 3 is arranged on the actinal surface of microwave radiator 2.
4, device according to claim 3 is characterized in that focusing arrangement 3 is made up of a shell 6 and number of metal bead 7, and prill 7 is arranged in lens-shaped by space lattice in shell 6, and focal length is 30～80cm.
5, device according to claim 4, the focal length that it is characterized in that focusing arrangement 3 is 30～50cm the best.
6,, it is characterized in that temp measuring system 4 adopts infrared radiation thermometer according to claim 3 or 4 or 5 described devices.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 92106864 CN1089177A (en) | 1992-03-26 | 1992-03-26 | A kind of microware radiating heat to human body method and device |
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| CN 92106864 CN1089177A (en) | 1992-03-26 | 1992-03-26 | A kind of microware radiating heat to human body method and device |
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| CN1089177A true CN1089177A (en) | 1994-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784436A (en) * | 2011-05-16 | 2012-11-21 | 深圳光启高等理工研究院 | Microwave hyperthermia therapy radiator and microwave hyperthermia therapy device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784436A (en) * | 2011-05-16 | 2012-11-21 | 深圳光启高等理工研究院 | Microwave hyperthermia therapy radiator and microwave hyperthermia therapy device |
| CN102784436B (en) * | 2011-05-16 | 2015-04-29 | 深圳光启高等理工研究院 | Microwave hyperthermia therapy radiator and microwave hyperthermia therapy device |
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