CN202548217U - System for detecting electrical properties of biological tissue under different temperatures - Google Patents
System for detecting electrical properties of biological tissue under different temperatures Download PDFInfo
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- CN202548217U CN202548217U CN2012200397328U CN201220039732U CN202548217U CN 202548217 U CN202548217 U CN 202548217U CN 2012200397328 U CN2012200397328 U CN 2012200397328U CN 201220039732 U CN201220039732 U CN 201220039732U CN 202548217 U CN202548217 U CN 202548217U
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Abstract
The utility model relates to the detecting field of electrical property parameters of biological tissue, in particular to a system for detecting electrical properties of biological tissue under different temperatures. The system comprises a computer control module, a network analyzer, a temperature detector, and a heating device. The heating device is an air heating type thermostatic heating chamber, in which a detection probe traction device, a deionized water calibration device and a biological tissue carrying device are provided. The detection probe traction device and deionized water calibration device are disposed on a lifting rod and capable of performing three-dimensional rotation. The biological tissue carrying device is disposed below the detection probe traction device and capable of lifting along its height direction. The utility model provides a rapid and accurate system for detecting electrical property parameters of biological tissue, which are used for simulation calculation of electromagnetic field thermal therapy and thermal ablation.
Description
Technical field
The utility model relates to the detection range of biological tissue's electrical characteristic parameter, is specifically related to the detection system of biological tissue's electrical characteristics under a kind of different temperatures.
Background technology
Electromagnetic radiation shows as thermal effect and non-thermal effect two broad aspect.Often adopt the thermal effect of electromagnetic radiation that biological tissue is carried out thermotherapy and heating ablation art clinically, like radio frequency heating ablation art of tumour etc.Tissue; Like ectocinerea, cardiac muscle, retina, cortex of bone etc.; Distributed pole to the electromagnetic radiation absorber amount is inhomogeneous, remove have with radiation frequency, radiation intensity, exposure duration outside the Pass, also with multiple relating to parameters such as the conductance of tissue, specific inductive capacity.Human body electromagnetic radiation dosimeter parameter is in order to characterize in the external electromagnetic field incident biosome and directly to the physical quantity of biosome generation effect, to mainly contain than uptake and specific absorption rate.Usually adopt the method for measurement and numerical simulation calculation to confirm the receptivity of human body at present to electromagnetic energy.
Can not adopt the method for somatometry to the inside of human body tissue, can only be similar to the specific absorption rate value of trying to achieve tissue through the method for analog computation, the conductivity of tissue then is the core parameter in the computation process.Although having issued first in 1996, people such as Gabriel are used for the database that electromagnetic measurement is learned the tissue dielectric properties of research; But the measurement data of this database is mostly based in vitro tissue; The frequency range of measuring is imperfect, and tissue class is also imperfect, and the mean value of measurement data has big uncertain; And be mostly the west ethnic group, the temperature conditions of its measurement is simulated the normal body temperature of human body mostly.In the electromagnetic field ablation procedure, the rising of biological tissue's temperature is huge to the electrical characteristic parameter influence, and the change meeting of these parameters directly influences the receptivity of the energy of electromagnetic field of this portion of tissue, thereby influences the effect of heating ablation.Therefore, need to obtain the electrical characteristic parameter of biological tissue under the different temperatures environment.
In the measurement of the electrical characteristic parameter of routine, the method for normally utilizing water-bath to heat makes biological tissue reach specific temperature and keeps constant temperature, comes the electrical characteristic parameter of detection of biological tissue then with the detection probe of network analyzer.But the temperature requirement of heating ablation reaches more than 50 ℃, and the method that water-bath is heated is difficult to make biological tissue's specific temperature value that is rapidly heated; Even the temperature on biological tissue surface reaches requirement, and is under the environment temperature, the metal detection probe can be taken away the heat of tissue surface fast when the contact tissue surface, and the difficult parameters that is obtained is with the electrical characteristics of biological tissue under the accurate expression condition of different temperatures; In process was heated in water-bath, when particularly detecting under the hot conditions biological tissue's electrical characteristic parameter, detection probe and biological tissue surface can cover one deck water vapour, and then have a strong impact on the detection accuracy of biological tissue's electrical characteristics.The electrical characteristic parameter of detection of biological tissue, except biological tissue was heated, it was identical with the temperature environment of detected material most importantly will to keep testing environment, but because of the difference of substance characteristics, and present type of heating such as infrared, ultrasonic all can not meet the demands.
The utility model content
The utility model is slow to the water-bath heat temperature raising that exists in the above-mentioned prior art, as to be difficult to accurately detect biological tissue's electrical characteristics under different temperatures deficiency, and biological tissue's electrical characteristics detection system under a kind of different temperatures that provides.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
Biological tissue's electrical characteristics detection system under the different temperatures; Comprise computer control module, network analyzer, Temperature Detector and heating arrangement; Said heating arrangement is air-heating type heated at constant temperature storehouse; In said air-heating type heated at constant temperature storehouse, be provided with detection probe draw-gear, deionized water means for correcting and biological tissue's carrying apparatus; Said detection probe draw-gear and deionized water means for correcting are arranged on the elevating lever and can carry out Three dimensional rotation, and said biological tissue carrying apparatus is arranged on the below of said detection probe draw-gear and can goes up and down along its short transverse.
The beneficial effect of the utility model: the utility model makes biological tissue, detection probe all place identical airtight temperature environment through air-heating type heated at constant temperature storehouse, can guarantee the consistance of testing result; Simultaneously, the utility model can make biological tissue to be measured surface and detection probe reach specified temp within a short period of time, realizes the purpose that is rapidly heated; Owing to adopted the detection probe draw-gear, and this device can carry out Three dimensional rotation, curvature, the angle that therefore can regulate the detection probe line earlier; Fixing more afterwards, detection probe is once fixing, and is then no longer mobile in whole testing process; Again because the deionized water means for correcting can carry out three-dimensional reorientation; And biological tissue's carrying apparatus liftable, so all devices will contact with detection probe through mobile device separately, this kind design both can realize effective adjusting of detection probe; Can avoid again making testing result more accurate because of moving of lead influences testing result.
Further, described detection probe draw-gear comprises base platform and detection probe, and said detection probe is connected with said base platform through the three-dimensional reorientation chuck, and said base platform links to each other with said elevating lever through another three-dimensional reorientation chuck.The design of said three-dimensional reorientation chuck can realize effective adjusting of detection probe, to better meet the detection needs.
Further, described base platform is the platform that has hollow hole.This kind design can increase the convection current of hot-air in the heating cabinet.
Further, the upper end of said detection probe is provided with fixed chuck.Said fixed chuck plays the effect of fixed fiber temp probe.
Further, said deionized water means for correcting includes the carriage beaker terminal with being arranged on said carriage, and said carriage links to each other with said elevating lever through the three-dimensional reorientation chuck.This kind design makes beaker come adjusting position through the rotation of three-dimensional reorientation chuck.
Further, described biological tissue carrying apparatus includes lifting support and table top, and said lifting support middle part is provided with regulating shaft, and said table top is provided with biological tissue's geometrical clamp.This kind design can make biological tissue move freely, go up and down in airtight thermostatical storehouse with this device.
Further, described air-heating type heated at constant temperature storehouse is provided with air hole and controls door.The design of air hole can impel the hot-air in the heating cabinet to form convection current, and the interior temperature of heating cabinet is consistent, and controls door and makes more convenient to operate.
To sum up, the utility model is that the detection of biological tissue's electrical characteristic parameter provides a kind of accurate detection system, and the analog computation that can be electromagnetic field thermotherapy and heating ablation provides biological tissue's electrical characteristic parameter accurately.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the structural representation of biological tissue's electrical characteristics detection system embodiment under the utility model different temperatures;
Fig. 2 is the utility model detection probe draw-gear and deionized water means for correcting structural representation.
Embodiment
Like Fig. 1, shown in Figure 2; Biological tissue's electrical characteristics detection system under the present embodiment different temperatures; Comprise computer control module 1, network analyzer 2, Temperature Detector 3 and heating arrangement 4; Said heating arrangement 4 adopts air-heating type heated at constant temperature storehouse; In said air-heating type heated at constant temperature storehouse, be provided with detection probe draw-gear, deionized water means for correcting and biological tissue's carrying apparatus, said detection probe draw-gear and deionized water means for correcting all are arranged on the elevating lever 8, and said biological tissue carrying apparatus is arranged on the below of said detection probe draw-gear.Said computer control module 1 links line 17 through GBIB and is connected with network analyzer 2; Said network analyzer 2 is connected with said detection probe draw-gear through detection probe connecting line 18, and said Temperature Detector 3 is connected with said deionized water means for correcting through a various surgical grade stainless steels 14.
Said air-heating type heated at constant temperature storehouse is provided with and controls door 15 and air hole 16, and said detection probe connecting line 17 is all inserted in the said air-heating type heated at constant temperature storehouse through said air hole 15 with various surgical grade stainless steels 14.
Said detection probe draw-gear includes base platform 7 and detection probe 5; Described base platform 7 is for having the platform of hollow hole; And link to each other with said elevating lever 8 through a three-dimensional reorientation chuck 6, said detection probe 5 is passed through the three-dimensional reorientation chuck and is connected with said base platform 7, and the lower end of said detection probe 5 contacts with biological tissue to be measured; The upper end is provided with a fixed chuck 10, said another root various surgical grade stainless steels of fixed chuck 10 clampings.
Said deionized water means for correcting includes carriage 9 beaker terminal with being arranged on said carriage, and said carriage 9 links to each other with said elevating lever 8 through the three-dimensional reorientation chuck.
Said biological tissue carrying apparatus comprises lifting support 11 and table top 12, and biological tissue to be measured is fixed on the said table top 12 through the biological tissue's geometrical clamp that is arranged on the table top 12, and said lifting support 11 is regulated up-down through the regulating shaft 13 in the middle of being arranged at.
After the utility model adopts air-heating type heated at constant temperature storehouse; Can regulate according to different detected temperatures; As be adjusted to 37 ℃, 50 ℃, 90 ℃ etc., and make the detected parameters temperature range of biological tissue's electrical characteristics wideer, can satisfy the detection requirement of electrical characteristic parameter in the heating ablation art process.
Biological tissue's electrical characteristics detection system under the said different temperatures of present embodiment; Make biological tissue, detection probe and means for correcting all place identical airtight temperature environment through air-heating type heated at constant temperature storehouse; Can guarantee the consistance and the accuracy of testing result, and can make biological tissue to be measured surface and detection probe reach the particular detection temperature within a short period of time; The detection probe draw-gear that is adopted, fixing again after the curvature of scalable detection probe line, the angle, this kind design both can realize effective adjusting of detection probe, can avoid again making testing result more accurate because of moving of lead influences testing result.
Claims (7)
1. biological tissue's electrical characteristics detection system under the different temperatures; Comprise computer control module, network analyzer, Temperature Detector and heating arrangement; It is characterized in that: said heating arrangement is air-heating type heated at constant temperature storehouse; In said air-heating type heated at constant temperature storehouse, be provided with detection probe draw-gear, deionized water means for correcting and biological tissue's carrying apparatus; Said detection probe draw-gear and deionized water means for correcting are arranged on the elevating lever and can carry out Three dimensional rotation, and said biological tissue carrying apparatus is arranged on the below of said detection probe draw-gear and can goes up and down along its short transverse.
2. biological tissue's electrical characteristics detection system under the different temperatures according to claim 1; It is characterized in that: described detection probe draw-gear comprises base platform and detection probe; Said detection probe is connected with said base platform through the three-dimensional reorientation chuck, and said base platform links to each other with said elevating lever through another three-dimensional reorientation chuck.
3. biological tissue's electrical characteristics detection system under the different temperatures according to claim 2 is characterized in that: described base platform is the platform that has hollow hole.
4. biological tissue's electrical characteristics detection system under the different temperatures according to claim 2, it is characterized in that: the upper end of said detection probe is provided with fixed chuck.
5. biological tissue's electrical characteristics detection system under the different temperatures according to claim 1; It is characterized in that: said deionized water means for correcting includes the carriage beaker terminal with being arranged on said carriage, and said carriage links to each other with said elevating lever through the three-dimensional reorientation chuck.
6. biological tissue's electrical characteristics detection system under the different temperatures according to claim 1; It is characterized in that: described biological tissue carrying apparatus includes lifting support and table top; Said lifting support middle part is provided with regulating shaft, and said table top is provided with biological tissue's geometrical clamp.
7. according to biological tissue's electrical characteristics detection system under the described different temperatures of aforementioned each claim, it is characterized in that: described air-heating type heated at constant temperature storehouse is provided with air hole and controls door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200397328U CN202548217U (en) | 2012-02-08 | 2012-02-08 | System for detecting electrical properties of biological tissue under different temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200397328U CN202548217U (en) | 2012-02-08 | 2012-02-08 | System for detecting electrical properties of biological tissue under different temperatures |
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| CN202548217U true CN202548217U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200397328U Expired - Fee Related CN202548217U (en) | 2012-02-08 | 2012-02-08 | System for detecting electrical properties of biological tissue under different temperatures |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109408842A (en) * | 2018-01-07 | 2019-03-01 | 北京工业大学 | A kind of accurate Characterization method of SAR in invariable power microwave ablation |
| CN112230061A (en) * | 2020-07-16 | 2021-01-15 | 深圳市计量质量检测研究院 | SAR tissue fluid modulation system and modulation method |
-
2012
- 2012-02-08 CN CN2012200397328U patent/CN202548217U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109408842A (en) * | 2018-01-07 | 2019-03-01 | 北京工业大学 | A kind of accurate Characterization method of SAR in invariable power microwave ablation |
| CN109408842B (en) * | 2018-01-07 | 2022-12-02 | 北京工业大学 | Accurate characterization method of SAR in constant-power microwave ablation |
| CN112230061A (en) * | 2020-07-16 | 2021-01-15 | 深圳市计量质量检测研究院 | SAR tissue fluid modulation system and modulation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140208 |