CN101416884A - Medical ultrasonic detection system - Google Patents
Medical ultrasonic detection system Download PDFInfo
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- CN101416884A CN101416884A CNA2008102362533A CN200810236253A CN101416884A CN 101416884 A CN101416884 A CN 101416884A CN A2008102362533 A CNA2008102362533 A CN A2008102362533A CN 200810236253 A CN200810236253 A CN 200810236253A CN 101416884 A CN101416884 A CN 101416884A
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Abstract
A medical ultrasonography system is characterized by comprising: a glass water tank (6), a bracket (22), a horizontal slip table (25), a mounting pole (26) capable of moving up and down, and a transducer fixture (15). One end of the glass water tank (6) is provided with a glass partition dividing the water tank into two tank bodies communicated at the bottoms, with one larger and the other smaller; the bracket (22) is arranged around the glass water tank and supports an X-direction granite horizontal guide rail (23) which is horizontally provided with a Y-direction granite horizontal guide rail (7) connected with a screw mandrel driving mechanism which drives the Y-direction granite horizontal guide rail (7) to move along the X direction and a compressed air intake (13) is arranged on one end surface of the Y-direction granite horizontal guide rail (7); and the horizontal slip table (25) is mounted on the Y-direction granite horizontal guide rail (7). The medical ultrasonography system is characterized by low manufacturing cost, high measuring precision and strong environmental adaptability.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments evaluation apparatus, the checkout gear of the ultrasonic performance indications of especially a kind of medical supersonic equipment, specifically a kind of medical ultrasonic detection system.
Background technology
As everyone knows, medical ultrasound is the application of ultrasonics in medical treatment, and according to its operation principle and characteristic, main application is divided into two big classes:
One, medical diagnosis is ultrasonic, mainly is to be applied to medical domain with the low-yield form of high frequency with diagnostic ultrasound promptly, is purpose to detect and to extract human body information, generally can not produce irreversible biological the variation in tissue.Because the medical diagnosis ultrasonic device is to be purpose to detect and to extract human body information, therefore in order to improve the definition of image, more accurate, the situation of response organization more clearly, the acoustical power of the equipment of ultrasonic diagnosis now is increasing, that have even arrived tissue is produced the biological degree that changes, especially particularly great to the influence of fetus, excessive ultransonic effect may cause the deformity of fetus.The clear picture of diagnostic ultrasound has become the main body of a pair of contradiction with biological effect, should guarantee safety, reach the clear of image again,, proposed the problem of the secure threshold of diagnostic ultrasound in the industry for the use ultrasonic diagnostic equipment that ensures safety for clinical diagnosis provides foundation.Must estimate the sound parameter of medical diagnostic equipment for this reason, guarantee the safety in the clinical practice.
Two, medical therapy is ultrasonic, and treating ultrasonic mainly is to act on human body with the high-octane form of low frequency (relative diagnosis is ultrasonic), makes tissue that certain take place and helps the disease treatment or the variation of physical rehabilitation.According to the difference of used ultrasound intensity, treat and ultrasonicly can be divided into again that physical therapy is ultrasonic, thermotherapy is ultrasonic and high intensity focused ultrasound (HIFU).In order to ensure human body, ultrasonic device also must operate in the secure threshold scope equally.
The design that medical supersonic sound field test macro in the market has three families such as ON-DATA, Sonora, Shanghai Communications University to be shaped, wherein ON-DATA, Sonora company have realized the marketization.
Medical supersonic sound field test macro mainly is made up of positioning measurment system, tank, data acquisition processing system, by positioning measurment system hydrophone and tested transducer are set up a space coordinate system in tank, data collecting system reads the signal of telecommunication of hydrophone gained, convert it to sound pressure signal and handle the sound field information that transducer sends of depicting, finally obtain the safe and effective property that parameters,acoustics such as needed acoustical power, mechanical index, heat number are estimated medical ultrasound equipment by date processing.
The used supersonic frequency of medical supersonic equipment obtains λ=c/f according to formula c=f* λ, wherein c=1500m/s in the water, so λ generally at 0.5MHz～20MHz
Min=1500/20M=75 μ m.For the space measurement trueness error of sound field, must be less than 1/10th of wavelength X when system's maximum operating frequency, so the certainty of measurement error should be higher than 7.5 μ m.This just requires the positioning accuracy of positioning measurment system will reach 7.5 μ m, and this requirement is very high.
What the location survey framework in the test macro of above-mentioned three companies design used all is metal frames such as rustless steel, aluminium alloy.Through tabling look-up, the thermal coefficient of expansion of metal is as follows:
| Material | Linear expansion coefficient (x0.000001/ ℃) |
| General cast iron | 9.2-11.8 |
| General carbon steel | 10~13 |
| Chromium steel | 10~13 |
| Nickel-chromium steel | 13-15 |
| Ferrum | 12-12.5 |
| Copper | 18.5 |
| Bronze | 17.5 |
| Pyrite | 18.5 |
| Aluminium alloy | 23.8 |
| Gold | 14.2 |
δ L=L * α * δ t (thermal expansion formula)
The length that δ L=thermal expansion causes changes
L=is length originally
α=thermal coefficient of expansion
The change of δ t=temperature
If measuring system vertical equity direction (X to) is 1200mm, press laboratory control temperature range and be ± 0.5 ℃ promptly 1 ℃, the coefficient of expansion that metal is minimum is 10 * 0.000001/ ℃, calculates δ L=L * α * δ t=1200 * 10 * 0.000001 * 1mm=0.012mm=12 μ m according to formula.This measurement is in theory, and laboratory temperature is controlled under the extraordinary situation still can not satisfy measurement requirement.In the real work, the environment of measuring system work is comparatively moist, big and difficult realization of thermostatic control ± 0.5 ℃ cost, and metal is perishable getting rusty in wet environment for a long time, accuracy and positioning accuracy for measuring system have been brought bigger influence, make the actual location precision of test macro of this kind framework can not be higher than 20 μ m.Do not reach the required precision of 7.5 μ m of standard-required.
Summary of the invention
The objective of the invention is low precision at existing metal guide rail formula detection system existence, to the environmental requirement height, easy-to-rust, the problem that the life-span is short, design a kind of granite that utilizes and be guide rail, adopt 12 degree of freedom to adjust the medical ultrasonic detection system of detection simultaneously.
Technical scheme of the present invention is:
A kind of medical ultrasonic detection system is characterized in that it comprises:
A glass flume 6, five faces of this glass flume 6 are double-layer glass structure, in an end of glass flume 6, be provided with glass partition, this glass partition is separated into small one and large one two cell bodies with tank, the bottom of two cell bodies communicates, and little cell body links to each other by the outlet of water inlet pipe 17 with the water treatment system 4 of degassing; Bottom or side at big cell body are provided with discharge outlet, and this discharge outlet links to each other by the recirculated water water inlet of outlet pipe 16 with the drainage arrangement or the water treatment system 4 of degassing;
One is installed in and is used to support the support 22 of X to granite horizontal guide rail 23 around the aforementioned glass flume, described X crossbearer on granite horizontal guide rail 23 has Y to granite horizontal guide rail 7, it links to each other to the screw mandrel driving mechanism that moves along X this Y to granite horizontal guide rail 7 and driving, on the end face of granite horizontal guide rail 7, be provided with compressed air inlet port 13 at Y, this compressed air inlet port 13 leads to the gas outlet on granite horizontal guide rail 23 contacted two ends with X by Y respectively to the gas circuit of granite horizontal guide rail 7, thus make Y to the air supporting of the two ends of granite horizontal guide rail 7 at X on granite horizontal guide rail 23;
One is installed in the horizontal sliding table 25 of aforementioned Y on granite horizontal guide rail 7, and it links to each other this horizontal sliding table 25 and driving to the screw mandrel driving mechanism 14 that moves along Y;
The mounting rod that can move up and down 26 that is installed on the horizontal sliding table 25, the lower end of mounting rod 26 is stretched in the tank 6, hydrophone 9 is installed on it, and hydrophone 9 links to each other with oscillograph 8, and oscillograph 8 links to each other with the computer 3 that acoustical power detection software is installed by signal connecting line 19;
Described compressed air inlet port 13 links to each other with manostat 2 by second trachea 12, and manostat 2 links to each other with compressor 1 by first trachea 11.
Described transducer anchor clamps 15 comprise and horizontally rotate drive rod 151, luffing angle is adjusted drive rod 152, the upper end that horizontally rotates drive rod 151 is inserted in the fixed block 153 rotationally, fixed block 153 is fixedly linked with support 22, on fixed block 153, be installed with to make and horizontally rotate drive rod 151 and be positioned at holding screw 154 in the fixed block 153, luffing angle is adjusted drive rod 152 and is positioned at a side that horizontally rotates drive rod 151 by last brace 155 and following brace 156, last brace 155 is fixed on and horizontally rotates on the drive rod 151, following brace 156 is fixed on the chuck 157, the upper end of chuck 157 can telescopically be inserted in the lower end that horizontally rotates drive rod 151 up and down and pass through holding screw 158, the lower end of chuck 157 is equipped with worm gear 159, worm gear 159 is meshed with the worm screw 160 that luffing angle is adjusted drive rod 152 lower ends, one end of upper clip 161 and lower clamping piece 162 is fixed on the worm-wheel shaft of worm gear 159, and their other end links to each other by connecting bolt 163.
The described water treatment system 4 of degassing comprises degassing assembly 407, one end of the shell 404 of degassing assembly 407 is provided with water inlet 401, the other end is provided with outlet 402, on the shell 404 between water inlet 401 and the outlet 402, be provided with bleeding point 403, package has the diaphragm 406 that degass that only can allow gas molecule pass through in the vacuum cavity 405 of shell 404 inside, described water inlet 401 links to each other with the water source, outlet 402 communicates with little tank in the glass flume 6 by water inlet pipe 17, and bleeding point 403 links to each other with vacuum pump by trachea.
Through tabling look-up, learn that the thermal coefficient of expansion of the blue or green granite in Jinan is 5.2 * 0.000001/ ℃, calculate according to computing formula, δ L=6.24 μ m can reach the requirement of standard, among a small circle in addition precision higher.
Therefore utilize the guide rail that granite measures as ultrasonic sound field and adopt 12 degree of freedom positioning measurment systems of pure granite framework five dimensions of whole air-flotation type.The direction that positioning accuracy is the longest (X to) can reach 6 μ m, and all the other both directions are 5 μ m and 4 μ m.Because granite comparatively heavy (whole 4 tons), therefore utilize the principle of gas suspension, adopt compressed air that the granite measuring table is floated, not only reduced frictional force, and can drive measuring system by low-power machine, air supporting simultaneously also played vibration isolation, reduce outer bound pair measures interferential effect.
Beneficial effect of the present invention:
The present invention compares with existing medical ultrasound sound field detection system and has the following advantages:
1, existing positioning measurment system adopts metal frame (rustless steel, aluminium alloy), and the present invention adopts pure granite, all is better than existing detection system on heat stability, rigidity, accuracy, precision.Positioning accuracy of the present invention has reached 6 μ m at length direction (directions X), and all the other both directions are 5 μ m and 4 μ m.
2, existing positioning measurment system adopts tooth screw mandrel stepping motor driving system, and the present invention adopts whole air floating structure, can reduce friction greatly, can drive positioning measurment system by low-power stepper motor, and the vibration isolation effect has also been played in air supporting.All be better than prior art aspect precision, the anti-interference greatly.
What 3, positioning measurment system of the present invention adopted is that fixing feet air supporting mode designs, motion rigidity height, and the precision height, guide rail deformation is little.
4, positioning measurment system of the present invention becomes an organic whole by granite and whole air supporting with whole navigation system, do not have to measure deformation, measurement environment is required low (ambient temperature, humidity requirement are low; Noise, vibration interference require low).
5, existing three-coordinate measuring machine measurement has only the main body of " gauge head " this end for measuring, and the measurement main body of test macro of the present invention is two of hydrophone end and transducer end.
6, existing three-coordinate measuring machine is the absolute position of measuring, and measures correction by place kick, and final result is to describe a spatial absolute dimension.And test macro of the present invention is measured is relative distance, is transducer and hydrophone relative coordinate system between the two, revises by the relative position between two test subjects.
7, existing three coordinate measuring machine does not have the pitching of angle, it is the measuring range of X, Y, the three-dimensional six-freedom degree of Z, and measuring system of the present invention has three-dimensional six test spaces freely at the hydrophone end, in transducer end the test space of vertical direction and pitching, the three-dimensional six-freedom degree of upset (angle that comprises four degree of freedom of two dimension) is arranged, merge to get up totally five dimension (X, Y, Z, α, β) 12 degree of freedom.
8, existing three coordinate measuring machine is operated in the measurement plane, and test macro of the present invention is operated in the measurement that is used for ultrasonic sound field in the tank.And first the pure granite framework of whole air-flotation type has been introduced the ultrasonic measurement field.
9, the present invention has low cost of manufacture, certainty of measurement height, the characteristics that environmental suitability is strong.
Description of drawings
Fig. 1 is a composition system structure sketch map of the present invention.
Fig. 2 is the structural representation of transducer anchor clamps of the present invention.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is the structured flowchart of the water treatment system of degassing of the present invention.
Fig. 5 is the structural representation of the degassing assembly of one of critical component in the water treatment system of degassing of the present invention.
Among the figure: 1, air compressor, 2, voltage stabilizing Lu device, 3, computer, 4, water treatment machine degass, 5, test sample, 6, tank, 7, Y is to the granite horizontal guide rail, 8, oscillograph, 9, hydrophone, 10, transducer, 11, first trachea, 12, second trachea, 13, compressed air inlet port, 14, Y is to driving mechanism, 15, transducer anchor clamps, 16, outlet pipe, 17, the water inlet visitor, 19, signal connecting line, 20, the tap water water inlet, 21, sewage effluent.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1.
A kind of medical ultrasonic detection system, it mainly comprises glass flume 6, support 22 (can adopt the metal stud frame structure), horizontal sliding table 25 (adopting the blue or green granite in Jinan), mounting rod 26, transducer anchor clamps 15 etc., as shown in Figure 1, wherein:
Five faces of glass flume 6 are double-layer glass structure, in an end of glass flume 6, be provided with glass partition, this glass partition is separated into small one and large one two cell bodies with tank, and the bottom of two cell bodies communicates, and little cell body links to each other by the outlet of water inlet pipe 17 with the water treatment system 4 of degassing; Bottom or side at big cell body are provided with discharge outlet, and this discharge outlet links to each other by the recirculated water water inlet of outlet pipe 16 with the drainage arrangement or the water treatment system 4 of degassing; The water treatment system of degassing 4 whole composition frame charts as shown in Figure 4, its key is a degassing assembly 407 (as Fig. 5) wherein, one end of the shell 404 of degassing assembly 407 is provided with water inlet 401, the other end is provided with outlet 402, on the shell 404 between water inlet 401 and the outlet 402, be provided with bleeding point 403, package has the diaphragm 406 that degass that only can allow gas molecule pass through in the vacuum cavity 405 of shell 404 inside, and this diaphragm has very strong mechanical strength.Described water inlet 401 links to each other with the water source, and outlet 402 communicates with little tank in the glass flume 6 by water inlet pipe 17, and bleeding point 403 links to each other with vacuum pump by trachea.Remaining part in the water treatment system of degassing 4 all can be directly from market purchasing, and directly linking to each other by figure then gets final product;
Horizontal sliding table 25 is installed in aforementioned Y on granite horizontal guide rail 7, and it links to each other this horizontal sliding table 25 and driving to the screw mandrel driving mechanism 14 (can add upper screw rod by motor or servomotor forms) that moves along Y;
The upper end of transducer anchor clamps 15 is fixed on the support 22, and its lower end is equipped with transducer 10, and transducer 10 links to each other with the test sample 5 that is installed in tank 6 outsides by connecting line; Transducer anchor clamps 15 (are seen Fig. 2, shown in 3) comprise and horizontally rotate drive rod 151 (be used to adjust horizontal plane in α direction rotational angle), luffing angle is adjusted drive rod 152 (being used to adjust β direction rotational angle in the vertical), the upper end that horizontally rotates drive rod 151 is inserted in the fixed block 153 rotationally, fixed block 153 is fixedly linked with support 22, on fixed block 153, be installed with to make and horizontally rotate drive rod 151 and be positioned at holding screw 154 in the fixed block 153, luffing angle is adjusted drive rod 152 and is positioned at a side that horizontally rotates drive rod 151 by last brace 155 and following brace 156, last brace 155 is fixed on and horizontally rotates on the drive rod 151, following brace 156 is fixed on the chuck 157, the upper end of chuck 157 up and down telescopically (two degree of freedom) is inserted in the lower end that horizontally rotates drive rod 151 and passes through holding screw 158, the lower end of chuck 157 is equipped with worm gear 159, worm gear 159 is meshed with the worm screw 160 that luffing angle is adjusted drive rod 152 lower ends, one end of upper clip 161 and lower clamping piece 162 is fixed on the worm-wheel shaft of worm gear 159, and their other end links to each other by connecting bolt 163.
Medical ultrasonic detection system of the present invention belongs to Medical Instruments checkout equipment field, be a kind of professional checkout equipment of medical ultrasound instrument, it is mainly used in the sound output parameter of detection medical diagnostic ultrasound equipment and the parameters,acoustics such as ultrasonic power of medical supersonic therapeutic equipment are also estimated the safety and effectiveness of tested product in view of the above.It is mainly formed by six part organic assembling such as degassed water automatic circulation device, pure granite framework five dimensions of whole air-flotation type ten two degrees of freedom positioning measuring devices, large-scale tank, air compressor and purifier, data acquisition processing device, radiation force method sound power measurement devices as seen from the above.The degassed water automatic circulation device injects 2.5 * 1.4 * 1.2 meters large-scale tank after tap water is degassed, and the circulation of ceaselessly degassing reaches＜2.5ppm to guarantee the oxygen content of measuring water.The ultrasonic transducer of tested inspection product and measuring hydrophone are set up one five dimension (X, Y, Z, α, β), ten binary relative coordinate systems under the driving of positioning measuring device.In relative coordinate system, near the hydrophone acquisition transducer in the data acquisition processing device sound field information passes to memory oscilloscope by the form of the signal of telecommunication, the signal that hydrophone is obtained by all automatic measurement software (but the software engineer writes according to measuring principle or by relevant compilation of teaching materials) carries out carrying out the calculating of sound field to describe the actual sound field of transducer periphery after the electroacoustic conversion, add the transducer sound general power of the absolute magnitude that goes out by radiation force method sound power measurement measurement device, finally calculate GB16846, IEC61157, UD2, GB9706.9, GB9706.7, the desired parameters,acoustic of YY0592-2005 standard, thus the sound parameter of tested medical ultrasound equipment is estimated.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1, a kind of medical ultrasonic detection system is characterized in that it comprises:
A glass flume (6), five faces of this glass flume (6) are double-layer glass structure, in an end of glass flume (6), be provided with glass partition, this glass partition is separated into small one and large one two cell bodies with tank, the bottom of two cell bodies communicates, and little cell body links to each other by the outlet of water inlet pipe (17) with the water treatment system of degassing (4); Bottom or side at big cell body are provided with discharge outlet, and this discharge outlet links to each other by the recirculated water water inlet of outlet pipe (16) with drainage arrangement or the water treatment system of degassing (4);
One is installed in and is used to support the support (22) of X to granite horizontal guide rail (23) around the aforementioned glass flume, described X goes up crossbearer to granite horizontal guide rail (23) has Y to granite horizontal guide rail (7), it links to each other to the screw mandrel driving mechanism that moves along X this Y to granite horizontal guide rail (7) and driving, on the end face of granite horizontal guide rail (7), be provided with compressed air inlet port (13) at Y, this compressed air inlet port (13) leads to the gas outlet on the contacted two ends of granite horizontal guide rail (23) with X by Y respectively to the gas circuit of granite horizontal guide rail (7), thus make Y to the two ends air supporting of granite horizontal guide rail (7) at X on granite horizontal guide rail (23);
One is installed in the horizontal sliding table (25) of aforementioned Y on granite horizontal guide rail (7), and it links to each other this horizontal sliding table (25) and driving to the screw mandrel driving mechanism (14) that moves along Y;
The mounting rod that can move up and down (26) that is installed on the horizontal sliding table (25), the lower end of mounting rod (26) is stretched in the tank (6), hydrophone (9) is installed on it, hydrophone (9) links to each other with oscillograph (8), and oscillograph (8) links to each other with the computer (3) that acoustical power detection software is installed by signal connecting line (19);
Transducer anchor clamps (15), the upper end of these transducer anchor clamps (15) are fixed on the support (22), and its lower end is equipped with transducer (10), and transducer (10) links to each other with the test sample (5) that is installed in tank (6) outside by connecting line.
2, medical ultrasonic detection system according to claim 1 is characterized in that described compressed air inlet port (13) links to each other with manostat (2) by second trachea (12), and manostat (2) links to each other with compressor (1) by first trachea (11).
3, according to claim 1 medical ultrasonic detection system according to claim 1, it is characterized in that described transducer anchor clamps (15) comprise horizontally rotates drive rod (151), luffing angle is adjusted drive rod (152), the upper end that horizontally rotates drive rod (151) is inserted in the fixed block (153) rotationally, fixed block (153) is fixedly linked with support (22), on fixed block (153), be installed with to make and horizontally rotate drive rod (151) and be positioned at holding screw (154) in the fixed block (153), luffing angle is adjusted drive rod (152) and is positioned at a side that horizontally rotates drive rod (151) by last brace (155) and following brace (156), last brace (155) is fixed on and horizontally rotates on the drive rod (151), following brace (156) is fixed on the chuck (157), the upper end of chuck (157) can telescopically be inserted in the lower end that horizontally rotates drive rod (151) up and down and pass through holding screw (158), the lower end of chuck (157) is equipped with worm gear (159), worm gear (159) is meshed with the worm screw (160) that luffing angle is adjusted drive rod (152) lower end, one end of upper clip (161) and lower clamping piece (162) is fixed on the worm-wheel shaft of worm gear (159), and their other end links to each other by connecting bolt (163).
4, medical ultrasonic detection system according to claim 1, it is characterized in that the described water treatment system of degassing (4) comprises degassing assembly (407), one end of the shell (404) of degassing assembly (407) is provided with water inlet (401), the other end is provided with outlet (402), on the shell (404) between water inlet (401) and the outlet (402), be provided with bleeding point (403), package has the diaphragm that degass (406) that only can allow gas molecule pass through in the inner vacuum cavity (405) of shell (404), described water inlet (401) links to each other with the water source, outlet (402) communicates with little tank in the glass flume (6) by water inlet pipe (17), and bleeding point (403) links to each other with vacuum pump by trachea.
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| CN2008102362533A CN101416884B (en) | 2008-11-27 | 2008-11-27 | Medical ultrasonic detection system |
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| CN2008102362533A CN101416884B (en) | 2008-11-27 | 2008-11-27 | Medical ultrasonic detection system |
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| CN101416884B CN101416884B (en) | 2010-06-09 |
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| CN2008102362533A Expired - Fee Related CN101416884B (en) | 2008-11-27 | 2008-11-27 | Medical ultrasonic detection system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142369A (en) * | 2014-07-21 | 2014-11-12 | 中国医学科学院生物医学工程研究所 | Five-freedom-degree accurate positioning device of acoustic transducer used for magnetoacoustic coupling imaging experiment |
| CN106382982A (en) * | 2016-11-21 | 2017-02-08 | 中国计量大学 | Portable HIFU acoustic parameter on-site measuring apparatus |
| CN106510757A (en) * | 2016-11-03 | 2017-03-22 | 张晓光 | Auxiliary device for diagnosing ultrasonic joint microvesicle open blood brain barrier |
| CN108956778A (en) * | 2018-08-03 | 2018-12-07 | 德淮半导体有限公司 | Ultrasonic scanning microscope water treatment facilities and its application method |
| CN109556547A (en) * | 2018-11-22 | 2019-04-02 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of composite guide rail structure and preparation method thereof for measuring machine |
| CN109872610A (en) * | 2019-03-30 | 2019-06-11 | 王泽崇 | Sound suspending device and method under a kind of liquid environment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501151A (en) * | 1981-05-22 | 1985-02-26 | The United States Of America As Represented By The Department Of Health And Human Services | Ultrasonic therapy applicator that measures dosage |
| CN2873250Y (en) * | 2006-03-14 | 2007-02-28 | 北京交通大学 | Water storage device for water channel type high strength focus ultrasonic therapeutic system |
| CN201303947Y (en) * | 2008-11-27 | 2009-09-09 | 江苏省医疗器械检验所 | Medical ultrasonic detection system |
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2008
- 2008-11-27 CN CN2008102362533A patent/CN101416884B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142369A (en) * | 2014-07-21 | 2014-11-12 | 中国医学科学院生物医学工程研究所 | Five-freedom-degree accurate positioning device of acoustic transducer used for magnetoacoustic coupling imaging experiment |
| CN104142369B (en) * | 2014-07-21 | 2016-07-20 | 中国医学科学院生物医学工程研究所 | Sonic transducer five degree of freedom accurate positioning device for the experiment of magnetosonic coupling imaging |
| CN106510757A (en) * | 2016-11-03 | 2017-03-22 | 张晓光 | Auxiliary device for diagnosing ultrasonic joint microvesicle open blood brain barrier |
| CN106382982A (en) * | 2016-11-21 | 2017-02-08 | 中国计量大学 | Portable HIFU acoustic parameter on-site measuring apparatus |
| CN108956778A (en) * | 2018-08-03 | 2018-12-07 | 德淮半导体有限公司 | Ultrasonic scanning microscope water treatment facilities and its application method |
| CN109556547A (en) * | 2018-11-22 | 2019-04-02 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of composite guide rail structure and preparation method thereof for measuring machine |
| CN109872610A (en) * | 2019-03-30 | 2019-06-11 | 王泽崇 | Sound suspending device and method under a kind of liquid environment |
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|---|---|
| CN101416884B (en) | 2010-06-09 |
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