CN102688559A - Temperature control method for medical microwave frostbite therapeutic equipment - Google Patents
Temperature control method for medical microwave frostbite therapeutic equipment Download PDFInfo
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- CN102688559A CN102688559A CN2012101977109A CN201210197710A CN102688559A CN 102688559 A CN102688559 A CN 102688559A CN 2012101977109 A CN2012101977109 A CN 2012101977109A CN 201210197710 A CN201210197710 A CN 201210197710A CN 102688559 A CN102688559 A CN 102688559A
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Abstract
The invention discloses a temperature control method for medical microwave frostbite therapeutic equipment. The frostbite therapeutic equipment at least comprises a microwave generator, a rewarming cavity, a coaxial line and a control unit, wherein the microwave generator is connected with the rewarming cavity through the coaxial line; an nozzle is formed on the rewarming cavity, a microwave shielding layer is arranged on the periphery of the rewarming cavity; an infrared temperature sensor is arranged in the rewarming cavity, and electrically connected with the control unit and the rewarming cavity; the control unit is used for controlling the microwave generator, so that the microwave generator works in a modulated working state; the control unit controls work of the infrared temperature sensor in the working clearance of the microwave generator; the infrared temperature sensor is used for detecting the body frostibite surface temperature in the rewarming cavity, while the control unit is used for reading a temperature signal of the temperature sensor and comparing the temperature signal with a set temperature interval; and the control unit controls the microwave generator and regulates the work duty ratio of the microwave generator, so that the detected surface body temperature works in the set temperature interval.
Description
Technical field
The present invention relates to a kind of radiotherapy unit, relate in particular to a kind of temperature-controlled process of medical microwave cold injury therapeutic instrument.
Technical background
At present sure treatment for the limbs part frozen; Its optimum curative effect is to adopt to be placed on rapid rewarming in the warm water in the physiological temp scope to the cold injury limbs; In order to keep water temperature; Need constantly in treatment tank, to add the hot water of suitable temperature, thereby keep the water in the treatment tank can keep constant temperature.Can know necessary the flowing of water that keep from present therapeutic effect, better heat transmission effect just can be arranged, thereby make that the cold injury position can very fast re-heat.But this Therapeutic Method needs agitating device or manpower to stir, the very effort that operates like this, and water temperature also can be to keep constant simultaneously, and therefore this means can not let patient and doctor's satisfaction.Additive method is also arranged certainly
,Like electric blanket, hot-air parcel etc., but that these methods all exist rewarming speed is slow, and the different parts rewarming is inhomogeneous, and possibly scald or injured skin.
In microwave cold injury therapeutic instrument, human surface temperature's measurement is very important, and temperature is too high can to injure human body, crosses the low optimum efficiency that then do not reach.
Yet under strong-electromagnetic field; When with conventional temperature sensor measurement temperature; Temperature probe and the lead manufactured by metal material produce faradic current after the match at high-frequency electromagnetic, because kelvin effect and eddy current effect make himself temperature rising; Temperature survey is caused serious interference, and mistake perhaps can't carry out stably measured to make measured temperature produce very.
Summary of the invention
The purpose of this invention is to provide a kind of heating evenly, can not produce high heat injury, improve the temperature-controlled process of the medical microwave cold injury therapeutic instrument of therapeutic effect skin or tissue.
The objective of the invention is to realize like this, a kind of temperature-controlled process of medical microwave cold injury therapeutic instrument is characterized in that: which comprises at least: microwave generator, rewarming chamber, coaxial line and control unit; The microwave generator is connected with the rewarming chamber through coaxial line, and there is an opening in the rewarming chamber, and microwave shielding layer is arranged around the rewarming chamber; The rewarming intracavity has infrared temperature sensor; Infrared temperature sensor and rewarming chamber are electrically connected with control unit, and control unit controlled microwave generator is operated in the microwave generator and transfers wide duty, the working clearance of microwave generator; The work of control unit control infrared temperature sensor; Infrared temperature sensor detects rewarming intracavity human body cold injury surface temperature, and the temperature signal of control unit reading temperature sensor compares with the design temperature interval value simultaneously; When the temperature value that detects during greater than the design temperature higher limit, control unit controlled microwave generator increases the work dutycycle of microwave generator; When detected temperatures value during less than the set temperature value lower limit, control unit controlled microwave generator reduces the work dutycycle of microwave generator, and the surperficial temperature of detection is operated in the design temperature interval.
Described microwave generator has microwave switch, voltage-regulation knob or current adjusting knob, sets the initialization state through voltage-regulation knob or current adjusting knob, is operated in through microwave switch controlled microwave generator and transfers wide duty.
It is the microwave of 2450MHz that described microwave generator produces single-frequency, through coaxial line and feed-in port introducing rewarming chamber, to the treatment that heats up of the frosted hands of rewarming intracavity or foot.
Described feed side oral reflex coefficient is less than 0.3, and energy reflection is less than 0.1, and microwave energy is absorbed by load greater than 90%.
Described microwave generator output is between 200W-2kW, and power is regulated through microwave generation voltage-regulation knob and current adjusting knob.
Described rewarming chamber is rectangle rewarming chamber, and the microwave feed side in the rewarming chamber is single feed-in port, and through theory and verification experimental verification, the microwave field distribution uniform in this zone.
Described opening is the scalable window, around the scalable window plumbous cloth is arranged, and is used for protecting non-frosted hands in rewarming chamber or foot portions; The scalable window of rewarming top of chamber has solved because hands or foot are difficult to get into the rewarming chamber because of individual difference in size problem.
The advantage of this invention is microwave field distribution uniform in the heating region of rewarming chamber, and the port reflection coefficient is less than 0.3, and energy reflection is less than 0.1, and microwave energy is absorbed by load greater than 90%, heat more even, injured skin not.Owing to be provided with the electron waves screen layer, completely cut off the external leakage of microwave simultaneously; Because the plumbous cloth that the top window setting is hung down, this lead cloth have effectively been protected non-cold injury zone, avoid it to come to harm; And the rewarming top of chamber has been offered the scalable window, has effectively solved because hands or foot are difficult to get into the rewarming chamber because of individual difference in size problem.It is simple to operate that hospital's curative effect proof is somebody's turn to do invention through Xijing, be easy to control, and therapeutic effect is good.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed description:
Fig. 1 is the population structure sketch map of the embodiment of the invention;
Fig. 2 is the temperature control sketch map of the embodiment of the invention;
Fig. 3 is the control unit circuit schematic diagram.
Among the figure, 1, the microwave generator; 2, rewarming chamber; 3, coaxial line; 4, control unit; 5, microwave shielding layer; 6, infrared temperature sensor; 7, microwave switch; 8, voltage-regulation knob; 9, current adjusting knob; 10, feed-in port; 11, plumbous cloth; 12, observation panel; 401, mos pipe; 402, magnetron; 403, power supply; 404, single-chip microcomputer; 405, keyboard; 406, display; 407, infrared temperature measurement device.
The specific embodiment
A kind of temperature-controlled process of medical microwave cold injury therapeutic instrument which comprises at least: microwave generator 1, rewarming chamber 2, coaxial line 3 and control unit 4, and microwave generator 1 is connected with rewarming chamber 2 through coaxial line 3; There is an opening in rewarming chamber 2, around the rewarming chamber 2 microwave shielding layer 5 is arranged, and infrared temperature sensor 6 is arranged in the rewarming chamber 2; Infrared temperature sensor 6 is electrically connected with control unit 4 with rewarming chamber 2; Control unit 4 controlled microwave generators 1 are operated in microwave generator 1 and transfer wide duty, the working clearance of microwave generator 1,6 work of control unit 4 control infrared temperature sensors; Infrared temperature sensor 6 detects human body cold injury surface temperature in the rewarming chamber 2; The temperature signal of control unit 4 reading temperature sensors 6 compares with the design temperature interval simultaneously, and the detected temperatures value is greater than set temperature value; Control unit 4 controlled microwave generators 1, the work dutycycle of increase microwave generator 1; The detected temperatures value is less than set temperature value, and control unit 4 controlled microwave generators 1 reduce the work dutycycle of microwave generator 1, make the surperficial temperature of detection be operated in the design temperature interval.
With reference to Fig. 1; A kind of temperature-controlled process of medical microwave cold injury therapeutic instrument which comprises at least: microwave generator 1, rewarming chamber 2, coaxial line 3 and control unit 4, and microwave generator 1 is connected with rewarming chamber 2 through coaxial line 3; There is an opening in rewarming chamber 2; Around the rewarming chamber 2 microwave shielding layer 5 is arranged, infrared temperature sensor 6 is arranged in the rewarming chamber 2, infrared temperature sensor 6 is electrically connected with control unit 4 with rewarming chamber 2.
As shown in Figure 2, control unit 4 controlled microwave generators 1 are operated in microwave generator 1 and transfer wide duty, in the t1 time; 1 work of microwave generator, the t2 time is the working clearance, in the t1 time; 1 work of control unit 4 controlled microwave generators, infrared temperature sensor 6 quits work; In the t2 time; Control unit 4 controlled microwave generators 1 are not worked, infrared temperature sensor 6 work, and infrared temperature sensor 6 detects human body cold injury surface temperature in the rewarming chamber 2; The temperature signal of while control unit 4 reading temperature sensors 6; Compare with the design temperature interval value, when the temperature value that detects during greater than the design temperature higher limit, the work dutycycle that control unit 4 controlled microwave generators 1 increase microwave generator 1 just prolongs the t1 time; When detected temperatures value during less than the set temperature value lower limit, the work dutycycle that control unit 4 controlled microwave generators 1 reduce microwave generator 1 just reduces the t1 time; , the surperficial temperature of detection is operated in the design temperature interval.
Like Fig. 3; Control unit 4 comprises: single-chip microcomputer 404, keyboard 405, display 406 and mos pipe 401; Two the pin drain D and the source S of mos pipe 401 are serially connected between 12V or the 24v power supply 403, and grid is electrically connected with the delivery outlet of single-chip microcomputer 404, and single-chip microcomputer 404 is electrically connected keyboard 405, display 406 and infrared temperature measurement device 407 simultaneously; Single-chip microcomputer 404 is through the switch off time of delivery outlet control mos pipe 401, the working time of magnetron 402 in the controlled microwave generator 1.
The rewarming chamber is rectangle rewarming chamber, and the microwave feed side in the rewarming chamber is single feed-in port, and through theory and verification experimental verification, the microwave field distribution uniform in this zone.Opening is the scalable window, and plumbous cloth 11 is arranged around the scalable window, covers non-cold injury zone with plumbous cloth 11, is used for protecting non-frosted hands in rewarming chamber or foot portions; The scalable window of rewarming top of chamber has solved because hands or foot are difficult to get into the rewarming chamber because of individual difference in size problem.Observation panel 12 is used for observing therapeutic process hands or foot cold injury regional change situation.
Parts that present embodiment is not described in detail and structure belong to well-known components and the common structure or the conventional means of the industry, here not narration one by one.
Claims (7)
1. the temperature-controlled process of a medical microwave cold injury therapeutic instrument; It is characterized in that: which comprises at least: microwave generator (1), rewarming chamber (2), coaxial line (3) and control unit (4), microwave generator (1) is connected with rewarming chamber (2) through coaxial line (3), and rewarming chamber (2) have an opening; Rewarming chamber (2) has microwave shielding layer (5) all around; Infrared temperature sensor (6) is arranged in the rewarming chamber (2), and infrared temperature sensor (6) and rewarming chamber (2) are electrically connected with control unit (4), and control unit (4) controlled microwave generator (1) is operated in microwave generator (1) and transfers wide duty; The working clearance of microwave generator (1); Control unit (4) control infrared temperature sensor (6) work, infrared temperature sensor (6) detects rewarming chamber (2) interior human body cold injury surface temperature, simultaneously the temperature signal of control unit (4) reading temperature sensor (6); Compare with the design temperature interval; The detected temperatures value is greater than set temperature value, and control unit (4) controlled microwave generator (1) increases the work dutycycle of microwave generator (1); The detected temperatures value is less than set temperature value, and control unit (4) controlled microwave generator (1) reduces the work dutycycle of microwave generator (1), makes the surperficial temperature of detection be operated in the design temperature interval.
2. the temperature-controlled process of a kind of medical microwave cold injury therapeutic instrument according to claim 1; It is characterized in that: described microwave generator (1) has microwave switch (7), voltage-regulation knob (8) or current adjusting knob (9); Set the initialization state through voltage-regulation knob or current adjusting knob, be operated in through microwave switch controlled microwave generator (1) and transfer wide duty.
3. the temperature-controlled process of a kind of medical microwave cold injury therapeutic instrument according to claim 1; It is characterized in that: it is the microwave of 2450MHz that described microwave generator (1) produces single-frequency, introduces rewarming chamber (2) through coaxial line (3) and feed-in port (10).
4. the temperature-controlled process of a kind of medical microwave cold injury therapeutic instrument according to claim 1 is characterized in that: described feed-in port (10) reflection coefficient is less than 0.3, and energy reflection is less than 0.1, and microwave energy is absorbed by load greater than 90%.
5. the temperature-controlled process of a kind of medical microwave cold injury therapeutic instrument according to claim 1; It is characterized in that: described microwave generator (1) output is between 200W-2kW, and power is regulated through microwave generation voltage-regulation knob and current adjusting knob.
6. the temperature-controlled process of a kind of medical microwave cold injury therapeutic instrument according to claim 1 is characterized in that: described rewarming chamber (2) is rectangle rewarming chamber, and the microwave feed side in the rewarming chamber is single feed-in port.
7. the temperature-controlled process of a kind of medical microwave cold injury therapeutic instrument according to claim 1 is characterized in that: described opening is the scalable window, around the scalable window plumbous cloth (11) is arranged, and is used for protecting non-frosted hands in rewarming chamber or foot portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101977109A CN102688559A (en) | 2012-06-15 | 2012-06-15 | Temperature control method for medical microwave frostbite therapeutic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101977109A CN102688559A (en) | 2012-06-15 | 2012-06-15 | Temperature control method for medical microwave frostbite therapeutic equipment |
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| CN102688559A true CN102688559A (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101977109A Pending CN102688559A (en) | 2012-06-15 | 2012-06-15 | Temperature control method for medical microwave frostbite therapeutic equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550858A (en) * | 2013-11-18 | 2014-02-05 | 湖南省健缘医疗科技有限公司 | Portable traditional Chinese medicine packet comprehensive therapeutic apparatus |
| CN112473019A (en) * | 2020-12-16 | 2021-03-12 | 迈尔健康科技(深圳)有限公司 | Method and device for keeping radiation balance of infrared thermal therapy |
| CN113663221A (en) * | 2021-08-13 | 2021-11-19 | 南京工业大学 | Hand-held plasma brush skin disease therapeutic instrument |
-
2012
- 2012-06-15 CN CN2012101977109A patent/CN102688559A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550858A (en) * | 2013-11-18 | 2014-02-05 | 湖南省健缘医疗科技有限公司 | Portable traditional Chinese medicine packet comprehensive therapeutic apparatus |
| CN103550858B (en) * | 2013-11-18 | 2016-03-02 | 湖南省健缘医疗科技有限公司 | A kind of Portable Chinese medicine medicament packet comprehensive treatment instrument |
| CN112473019A (en) * | 2020-12-16 | 2021-03-12 | 迈尔健康科技(深圳)有限公司 | Method and device for keeping radiation balance of infrared thermal therapy |
| CN113663221A (en) * | 2021-08-13 | 2021-11-19 | 南京工业大学 | Hand-held plasma brush skin disease therapeutic instrument |
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Application publication date: 20120926 |