CN1133745A - Temp. measuring method and circuit for microwave electromagnetic field heating means and multifunctional microwave therapeutic apparatus - Google Patents
Temp. measuring method and circuit for microwave electromagnetic field heating means and multifunctional microwave therapeutic apparatus Download PDFInfo
- Publication number
- CN1133745A CN1133745A CN 95103937 CN95103937A CN1133745A CN 1133745 A CN1133745 A CN 1133745A CN 95103937 CN95103937 CN 95103937 CN 95103937 A CN95103937 A CN 95103937A CN 1133745 A CN1133745 A CN 1133745A
- Authority
- CN
- China
- Prior art keywords
- microwave
- temperature
- temperature sensor
- circuit
- measuring method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A method for measuring the temp of microwave-type electromagnetic field heater features that the heating by mirowave source and temp measurement by temp-measuring circuit are alternatively conducted, that is, a heating and measuring period comprises t + delta t, where t is for heating and delta t is for measurement. A temp-measuring cicuit to implement said method is composed of 1-16 temp sensors, analog switch, data amplifier, A/D converter and computer. A multifunctional microwave therapeutic apparatus using said method and circuit is disclosed.
Description
The present invention relates to a kind of thermometry and instrument, particularly a kind of temp measuring method and temperature measurement circuit of accurate measurement microwave electromagnetic field heating equipment and the multifunction microwave therapeutic instrument of having used above-mentioned temp measuring method and temperature measurement circuit.
In at present domestic and international all armarium.Measure the microwave energy temperature of heating; because of electromagnetic field can't be realized direct measurement to the interference of temperature measuring circuit; general adopt indirect thermometric to cause certainty of measurement poor, and do not have effective resist technology of pathological changes edge normal tissue cell and microwave radiation at the comprehensive stage construction cycle therapy of pathological changes tumor technology.
For fear of microwave temperature signal is disturbed, the device of employing is also arranged with microwave and the isolating way of direct current temperature signal, as " medical microwave heat temperature measuring equipment " CN1080555A, adopt shunt that microwave is separated with the direct current temperature signal, make the shared same transmission line of microwave and direct current temperature signal.Not only produce microwave radiation but also induce temperature signal with special high resistant temperature-sensitive antenna in addition, the thermometric of having realized heating unites two into one, and has avoided microwave that temperature signal is disturbed simultaneously.
In addition, CN1089178 discloses a kind of micro-wave therapeutic equipment with multichannel output, adopts special microwave power divider through various combination, forms multichannel output, treats several patients simultaneously to adapt to.
The present invention seeks to deficiency at prior art; provide a kind of can directly accurately measure microwave electromagnetic field heating equipment heat temperature measuring method and realize the circuit of this temp measuring method and the multifunction microwave therapeutic instrument of having used above-mentioned temp measuring method and temperature measurement circuit; make the present invention can reach, can effectively protect pathological changes edge normal tissue cell to the direct multi-point temperature measurement in human lesion position and the easy control of temperature of heating.
Measuring method is easy to generate electromagnetic field to the interferential deficiency of temperature measuring circuit while heating in temp measuring method breakthrough of the present invention, and employing is interrupted alternately heating and measurement, promptly is one with t+ Δ t and heats and measuring period, heats in the time at t, measures in the Δ t time.Like this, when measuring in the Δ t time, microwave electromagnetic field stops to heat, and has avoided microwave electromagnetic field that temperature measurement circuit is influenced, and has reached direct temperature measurement, has improved temperature measurement accuracy.Wherein, t=4 second～5 second, t=4.5 second is preferentially selected in Δ t=O.8 second～0.3 second, Δ t=0.5 second.
Realize the microwave electromagnetic field heating equipment temperature measurement circuit of above-mentioned temp measuring method, by 1～16 tunnel temperature sensor, analog switch, data amplifier, analog-digital converter, computer constitutes, temperature sensor is inserted epidemic febrile disease to be measured and is become position and surrounding tissue, t is after the heating work second time for microcomputer control microwave source process, pick off begins thermometric at Δ t in second, is change in voltage by measuring circuit with resistance variations, the voltage that transports by four addressing signal controlling analog switches each temperature sensor of gating successively by computer, amplify through data, analog-converted is sent into computer, and the processing of computer process software converts change in voltage in the temperature sensor to the temperature variate and is presented on the computer screen.Its circuit block diagram as shown in Figure 2.Temperature measurement circuit of the present invention is preferentially selected to be one per 5 seconds and is heated and measuring period, wherein be the microwave source heating work time 4.5 seconds, 0.5 second be 16 tunnel temperature sensors work (thermometric) times, computer output addressing control signal is connected 16 tunnel temperature sensors successively and is carried out temperature survey in 0.5 second.
A kind of multifunction microwave therapeutic instrument of having used above-mentioned temp measuring method and circuit, by microcomputer, microwave source, control circuit, temperature measuring circuit, transmission line, therapeutic device, temperature sensor, the power supply printer is formed, temperature sensor connects temperature measurement circuit and links to each other with the microcomputer main frame, is that change in voltage be input to microcomputer by temperature measuring circuit by resistance variations with the temperature signal that records, it is a working cycle to produce microwave energy by connected control circuit with the t+ Δ t time that microcomputer starts the microwave source that connects control circuit and therapeutic device, and deliver on the therapeutic device by transmission line, its fundamental diagram and connection layout in kind are seen Fig. 3 and Fig. 5.
Multifunction microwave therapeutic instrument of the present invention, the spy is a plurality of microwave sources of configuration in an equipment, and can select one or more to work respectively or simultaneously as required under microcomputer control arbitrarily.Preferentially elect with 1～4 microwave source, be preferably 4 microwave sources, under microcomputer control, can select one the road or 1～4 the tunnel to work respectively or simultaneously arbitrarily.In order to realize multichannel output, before therapeutic device, be provided with power divider, microwave power output can be changed to 4～16 tunnel outputs by power divider.Therapeutic device can be selected for use according to the clinical treatment needs, microwave radiation pin, microwave radiation chamber etc.When for the microwave radiation pin, select φ 1.2 * 45mm injection needle for use, and temperature sensor is placed in the injection needle.Spy of the present invention is provided with 16 tunnel temperature sensors; not only multi-point temperature measurement is convenient to temperature control; and can be arranged to treat temperature sensor and protection temperature sensor arbitrarily, and can realize both the microwave heating temperature of tumor section being measured and being controlled, again pathological changes edge normal structure is effectively protected.Encapsulation critesistor or PN junction type pick off in φ 1.2 * 36mm injection needle are selected in temperature sensor for use.
Microwave electromagnetic field heating equipment temp measuring method of the present invention has been owing to avoided microwave electromagnetic field that temperature measurement circuit is influenced, thereby realized directly accurately thermometric.
Microwave electromagnetic field heating equipment temperature measurement circuit of the present invention, realized that not only multi-point temperature measurement is convenient to control, and the temperature protection pick off can be set, effectively protected the not unlikely damage of diseased region histiocyte, simultaneously in good time thermometric, temperature measurement accuracy are that maximum error is ± 0.5 ℃ in 35～50 ℃ of scopes; Less than 35 ℃ or be ± 1 ℃ greater than maximum error in 50 ℃ of scopes
Multifunction microwave therapeutic instrument of the present invention has following nine advantages:
(1) this equipment adopts domestic and international unique thermometry, and micro computer monitoring reaches domestic and international advanced level in good time accurately to being in human lesion position direct temperature measurement in the microwave field under enforcement operation, the treatment duty.
(2) select for use the PC486 microsystem that operation or treatment are monitored, the case history deposit is handled, and figure or data mode are printed.
(3) multiple functional software design is set up human computer conversation, data acquisition, conversion deposit, non-linear correction and file process.
(4) holding circuit is set and pathological changes edge normal tissue cell has been carried out effective protection with the protection temperature transducer.
(5) simple, efficient, high-power, low-cost micro-wave therapeutic source, the stepless variation of watt level, the treatment of output 4-16 path radiation.
(6) Du Te microwave radiation pin, leakage are can little application wide, select for use according to pathological changes size position shape.
(7) Jing Qiao injection pin type temperature sensor can be inserted the inner thermometric in pathological changes size position easily.
(8) be equipped with special protection equipment for medical personnel's anti-microwave radiation,
(9) being equipped with multiple special-purpose clinical treatment apparatus selects for use for different diseases.
Description of drawings:
Fig. 1 is a temp measuring method principle schematic of the present invention.
Fig. 2 is a temperature measurement circuit functional-block diagram of the present invention.
Fig. 3 is a multifunction microwave therapeutic instrument functional-block diagram of the present invention
Fig. 4 is a temperature measurement circuit layout of the present invention.
Fig. 5 is microwave therapy apparatus of the present invention connection layout in kind.
Multifunction microwave therapeutic instrument work process of the present invention is as follows:
At first the medical worker in when operation the concrete condition according to patient's diseased region; determine how to assign the microwave radiation pin in the affected part; determine that then every radiation pin tissue on every side need add the temperature range of control; and definite which thermometric needle is controlled this temperature; require in the operation simultaneously monitoring near the temperature of pathological changes edge normal structure in case normal structure sustain damage because of overheated; this just need be arranged to the protection head to some thermometric needles and (protect the first dawn overheated; computer will cut off microwave radiation source immediately and report to the police to surgical work person simultaneously; surgical staff takes measures to make temperature to drop to normal range to superheated normal structure, proceeds operation again).
Surgical work personnel tell computer the operation intention by setting running parameter with the control relation.After setting is finished, can select " self check " switch, check whether the self-checking system thermometric is normal.
The setting of running parameter: the upper and lower limit of control temperature is set, and the upper limit of each thermometric needle and lower limit input computer.
The setting of control relation: the microwave radiation pin of selected thermometric needle control with which radiation source links to each other, and then this thermometric needle is relevant with the control pass of this radiation source.
Protection head (protection temperature sensor) is provided with: certain several thermometric needle and all microwave radiation sources all are decided to be relevant, this thermometric needle just becomes the protection head.
Can be after setting is finished by " self check " switch, the ambient temperature that 16 temperature sensors are surveyed shows with rectangular histogram, if displays temperature meets design temperature then for normal, gets final product " beginning operation ".After the operation beginning, control circuit is under computer control, with t+ Δ t is that (wherein t second is the microwave source working time to one-period second, Δ t second is the thermometric time), make microwave source produce microwave energy, pass through coaxial cable, power divider, the microwave radiation pin radiate, with the radiation pin is that the center produces radiation field; absorb microwave energy around the diseased region and generate heat; temperature value is regularly measured in the temperature sensor that is placed on its variations in temperature of monitoring these positions in; in case temperature has exceeded the upper limit of design temperature when being overheated, the microwave source that controlled by this thermometric needle quits work; The lower limit that is lower than design temperature when temperature is started working by the microwave source of this thermometric needle control during promptly less than temperature; When a certain microwave source be subjected to a plurality of temperature sensors control and produce an overtemperature and another during less than the contradiction of temperature, computer is by handling less than temperature.
Show the temperature value that pick off records in the operation process on computer screen, every t+4t changes once second, shows simultaneously with rectangular histogram and numeral.The color of rectangular histogram and numeral is: green expression is less than temperature, and blue expression enters normal temperature range, and red expression is overheated.Two short-terms are arranged, red expression temperature upper limit, blue expression lowest temperature on the rectangular histogram.Four lattices in the coordinate side of having fastened are represented the duty of four microwave sources.A fork is arranged in the lattice, and the expression microwave source is worked, and diseased region is being heated.Be blank in the lattice, the expression microwave source quits work, and diseased region stops to heat.
The top of coordinate system has a timing to show, the shown time is the effective time of operation, and it does not comprise suspends operation or used time of modification parameter.
When pressing " interrupting operation " switch, surgical work person can be according to screen prompt, when affirmation should finish to perform the operation, can the deposit of the temperature data in the operation be prepared against and call.
More than sketched " operation " state work process of multifunction microwave therapeutic instrument.
In the work of " treatment " state, then close with general microwave physical therapy equipment, just microwave source output size and working time can be provided with arbitrarily by computer.
Claims (10)
1, a kind of temp measuring method of microwave electromagnetic field heating equipment, it is characterized in that adopting microwave source and temperature measurement circuit interruption to hocket heats and measurement, promptly be one and heat and measuring period with t+ Δ t, t in the time microwave source heat temperature measurement circuit thermometric in the Δ t time.
2, temp measuring method according to claim 1 is characterized in that: t=4 second～5 second, Δ t=0.8 second～0.3 second.
3, temp measuring method according to claim 2 is characterized in that t=4.5 second, Δ t=0.5 second.
4, a kind of microwave electromagnetic field heating equipment temperature measurement circuit of realizing above-mentioned temp measuring method, it is characterized in that: by 1～16 tunnel temperature sensor, analog switch, data amplifier, analog-digital converter, computer constitutes, diseased region to be measured and surrounding tissue are inserted in temperature sensor, microcomputer controlled microwave source process t is after the heating work second time, pick off begins thermometric at Δ t in second, transfer resistance variations to change in voltage by measuring circuit, the voltage that transports by four addressing signal controlling analog switches each temperature sensor of gating successively by computer, amplify through data, analog-converted is sent into computer, and the processing of computer process software converts change in voltage in the temperature sensor to the temperature variate and is presented on the computer screen.
5, a kind of multifunction microwave therapeutic instrument of having used above-mentioned temp measuring method and circuit, it is characterized in that: form by microcomputer, microwave source, control circuit, temperature measuring circuit, transmission line, therapeutic device, temperature sensor, power supply printer etc., temperature sensor connects temperature measurement circuit and links to each other with the microcomputer main frame, the temperature signal that records is input to microcomputer, it is that one-period produces microwave energy with the t+ Δ t time that microcomputer starts microwave source by connected control circuit, delivers on the therapeutic apparatus by transmission line.
6, microwave therapy apparatus according to claim 5, it is held to levy and is: microwave source is 1～4, and can select 1～4 the tunnel to work respectively or simultaneously as required under microcomputer control arbitrarily.
7, microwave therapy apparatus according to claim 5 is characterized in that: temperature sensor is 16 the tunnel and can be arranged to treat temperature sensor and protection temperature sensor arbitrarily.
8, microwave therapy apparatus according to claim 5 is characterized in that: selected therapeutic device can be divided into, microwave radiation pin and microwave radiation chamber.
9, according to claim 5 or 7 described microwave therapy apparatuses, it is characterized in that: encapsulation critesistor or PN junction type pick off in φ 1.2 * 36mm injection needle are selected in temperature sensor for use.
10, microwave therapy apparatus according to claim 8 is characterized in that: therapeutic device is selected φ 1.2 * 45mm injection needle microwave radiation pin for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95103937 CN1133745A (en) | 1995-04-18 | 1995-04-18 | Temp. measuring method and circuit for microwave electromagnetic field heating means and multifunctional microwave therapeutic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95103937 CN1133745A (en) | 1995-04-18 | 1995-04-18 | Temp. measuring method and circuit for microwave electromagnetic field heating means and multifunctional microwave therapeutic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1133745A true CN1133745A (en) | 1996-10-23 |
Family
ID=5074938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95103937 Pending CN1133745A (en) | 1995-04-18 | 1995-04-18 | Temp. measuring method and circuit for microwave electromagnetic field heating means and multifunctional microwave therapeutic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1133745A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081936C (en) * | 2000-01-14 | 2002-04-03 | 叶志明 | Microwave therapeutical instrument |
| CN100377696C (en) * | 2003-03-26 | 2008-04-02 | 悉尼科技大学 | A microwave antenna for medical ablation |
| CN103091357A (en) * | 2011-11-02 | 2013-05-08 | 上海华源热疗技术有限公司 | PC programmed type microwave thermal effect tester |
| CN104330184A (en) * | 2014-10-21 | 2015-02-04 | 苏州德鲁森自动化系统有限公司 | Temperature measurement method overcoming errors caused by adhesion of liquid water and solid water |
| CN106155134A (en) * | 2016-08-09 | 2016-11-23 | 宁波大学 | A kind of enrichment pipe temp. control method and attemperating unit |
| CN113842560A (en) * | 2021-10-27 | 2021-12-28 | 武汉兰宝石医疗设备有限公司 | Constant-temperature pulse type microwave therapeutic apparatus |
| CN115400016A (en) * | 2022-09-07 | 2022-11-29 | 河南理行合医疗科技有限公司 | Microwave physical therapy acupuncture point moxibustion device and using method thereof |
-
1995
- 1995-04-18 CN CN 95103937 patent/CN1133745A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081936C (en) * | 2000-01-14 | 2002-04-03 | 叶志明 | Microwave therapeutical instrument |
| CN100377696C (en) * | 2003-03-26 | 2008-04-02 | 悉尼科技大学 | A microwave antenna for medical ablation |
| CN103091357A (en) * | 2011-11-02 | 2013-05-08 | 上海华源热疗技术有限公司 | PC programmed type microwave thermal effect tester |
| CN104330184A (en) * | 2014-10-21 | 2015-02-04 | 苏州德鲁森自动化系统有限公司 | Temperature measurement method overcoming errors caused by adhesion of liquid water and solid water |
| CN106155134A (en) * | 2016-08-09 | 2016-11-23 | 宁波大学 | A kind of enrichment pipe temp. control method and attemperating unit |
| CN113842560A (en) * | 2021-10-27 | 2021-12-28 | 武汉兰宝石医疗设备有限公司 | Constant-temperature pulse type microwave therapeutic apparatus |
| CN115400016A (en) * | 2022-09-07 | 2022-11-29 | 河南理行合医疗科技有限公司 | Microwave physical therapy acupuncture point moxibustion device and using method thereof |
| CN115400016B (en) * | 2022-09-07 | 2024-04-23 | 河南理行合医疗科技有限公司 | Microwave physiotherapy acupuncture point moxibustion device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2210450C (en) | Method and apparatus for photon therapy | |
| WO2002047565A3 (en) | Rf ablation system and method having automatic temperature control | |
| CN104105454B (en) | Electro-surgical device with multiplexer | |
| CN100402110C (en) | Microwave heating method and device for whole body or regionality | |
| WO2018010659A1 (en) | Irreversible electroporation device and operation method therefor | |
| US7258688B1 (en) | Computerized electrical signal generator | |
| CN200942123Y (en) | Radiofrequency generating and controlling device for radiofrequency ablation therapy | |
| US4669475A (en) | Apparatus and method for hyperthermia treatment | |
| US6067371A (en) | Method and system for non-invasive temperature mapping of tissue | |
| CN1133745A (en) | Temp. measuring method and circuit for microwave electromagnetic field heating means and multifunctional microwave therapeutic apparatus | |
| JP2003510125A (en) | Electrode contact evaluation and ablation system and method of use | |
| AU7427200A (en) | Set for heat treatment of biological tissues and method using same | |
| CN201006190Y (en) | Microwave therapentic equipment | |
| CN101058006A (en) | Electromagnetic wave therapeutic equipment | |
| CN108185989A (en) | Early stage mammary gland disease Multifunction diagnosing therapeutic equipment and control method | |
| CN110404176A (en) | tumor thermotherapy apparatus and control method thereof | |
| CN202105325U (en) | Microwave therapy apparatus | |
| CN113164203A (en) | System and method for determining a device-specific operating configuration of a microwave generator | |
| CN212662471U (en) | Physiotherapy lamp with quick temperature control response | |
| CN2576191Y (en) | Microwave thermal-treatment radiator | |
| CN108433702A (en) | A kind of Breast health intelligent monitor system | |
| CN112494809A (en) | Non-thermal effect electric field radio frequency thermotherapy instrument | |
| CN203915198U (en) | A kind of mode of wireless transmission tumor thermotherapy device | |
| CN1229082C (en) | Control method for solidifying edges of tumour in treatment of solidifying and inactivating medical appliance | |
| CN214388523U (en) | Non-thermal effect electric field radio frequency thermotherapy instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1022497 Country of ref document: HK |