The using method of the Portable medical supersonic detection means of high degree of automation
Technical field
The present invention relates to a kind of supersonic detection method, particularly a kind of use of Portable medical supersonic detection means
Method.
Background technology
Ultrasonic application in medical treatment is just becoming more and more important.From its application, we substantially can be by medical ultrasound
It is divided into diagnostic ultrasound and treat ultrasonic two application directions.
The application of diagnostic ultrasound is more ripe at present, surpasses (A-mode) from A, B ultrasonic (B-modc), and C surpasses (C-mode)
Surpass (M-mode) to M, and adopt the B ultrasonic of higher hamonic wave imaging, species is various, and technology is relatively ripe.
Recent years, treatment is ultrasonic to have breakthrough, in terms of focus ultrasonic knife, ultrasonic rubble successively in terms of clinical practice
Obtain 7 great development, particularly focus ultrasonic knife (i.e. High Intensity Focused Ultrasound High Intensity Focal Ultrasound
(HIM) there is the development in the leading world in China, there is very big application prospect.However, the extensive application with medical ultrasound
Compare, the restraining factors of its development similarly significantly show..
The application of medical ultrasound, is a kind of accurate application to ultrasonic sound field, in theory, it is right that this application first has to
Medical ultrasound sound field has the description of complete and accurate and measures.But, due to particularity and the tissue of ultrasonic measurement
The complexity of structure, result in the accurate description to ultrasonic sound field in human body and measurement is all extremely difficult.Therefore, to medical ultrasound
Application be to have walked a road first applied.I.e. under the conditions of having the description of sound field substantially, first carry out applications of ultrasound, obtain
Zoopery and the medical experience of clinical practice, as later guidance.The sound field facing the difficulty accurately describes and measures, and gives over to
Solve again later.
In this case, the medical application of medical ultrasound is just taken an early lead, and achieves and make common people gaze at
Achievement, its diagnosis and therapeutic effect obtain the extensive approval of medical circle.However, we oneself through determining medical ultrasound effect
In the case of, is still in its acoustic measurement, oneself is through answering immature, incomplete stage with the success of medical ultrasound
With compare it may be said that medical ultrasound application aspect, the contribution that physician is done is greater than acoustician.As former sound field
Space measurement scans mode using screw drive space, limited by its precision and measurement range, does not far reach the requirement of IEC standard.
However, in today of electronic technology and computer technology fast development, if acoustic measurement can be with up-to-date technology
Combine it is believed that being to be entirely possible to break through original measurement limitation, to reach the need tentatively meeting clinical medicine application
Will.
It is known that medical supersonic equipment is in disease diagnosis and therapy, in order to ensure the effect of Clinics and Practices, need
Ultrasonic image clearly, however, image is more clear, the output acoustic power of diagnostic ultrasound equipment will be bigger, excessive ultrasonic output
Power will produce biological change in some instances it may even be possible to cause deformity of fetus etc. to tissue.Therefore, safety should be ensured, and
Image clearly to be reached has become the main body of conflict with biological effect.Use ultrasonic device in order to ensure safety, carry in industry
Go out the problem that medical supersonic equipment is used ultrasonic secure threshold.For that purpose it is necessary to enter to the sound parameter of medical supersonic equipment
Row evaluates the security it is ensured that in clinical practice.
Hydrophone, also known as underwater microphone, is transducer underwater signal being converted to electric signal.It is to utilize material
Characteristic and its interact with surrounding environment a variety of mudulation effects producing, detect the signal such as pressure, sound in liquid
Instrument.In civil area, hydrophone can carry out oil exploration, marine organisms monitoring, seabed investigation by detecting underwater sound signal
Deng.In military field, hydrophone as sonar system foremost, carries the effect detecting unfriendly target signal.Water is listened
Device is used for medically, then can be used to detect ultrasonic in medical supersonic equipment, whether to measure these ultrasound value in safety
Within range of receiving.
No. 200610088285.4 Chinese invention patents of Application No. disclosed in 27 days December in 2007, its innovation and creation
Entitled " medical ultrasonic detection method and system ".Wherein, medical ultrasound detection means includes being provided with hydrophone in tank and carries out
The device of measurement, hydrophone is located on three coordinate machine, and three coordinate machine is located in full granite solid-state structure, and three coordinate machine measurement
Device adopts full air-flotation type vibration insulation structure, and full air-flotation type vibration isolation is located on high-precision air-float guide rail and carries out three coordinate space surveys
Amount, also includes the support being provided with sound emission or sound reception simultaneously, and transducer is provided with the angle of pitch and the angle that swings on support
Adjustment axle.
In addition, in above-mentioned patent application, medical ultrasonic detection method is:Measured using hydrophone in the sink, right
The measurement of space sound-filed simulation and time sound-filed simulation carries out the detection of sound parameter, by a three dimensions accurate scan system
System, in order to the room and time distribution of perfect measurement medical ultrasound sound field (acoustic pressure);What accurate scan system of three-dimensional space adopts three
The fundamental measurement of coordinate machine, realizes the measurement of space sound field;Three coordinate machine is surveyed using in full granite solid-state structure
Amount, and Three-coordinate measurer adopts full air-flotation type vibration isolation, intercepts common vibration interference;Full air-flotation type vibration isolation is located at high accuracy
Three coordinate machine air-float guide rail on carry out three coordinate space measurements.
Above-mentioned medical ultrasonic detection method and system, first hydrophone are used in medical ultrasound, can be successfully to medical treatment
Ultrasonic detected.
No. 200810236253.3 Chinese invention patents of Application No. disclosed in 29 days April in 2009, its innovation and creation
Entitled " medical ultrasonic detection system ", it includes a glass flume, glass flume one end in be provided with glass partition,
Tank is separated into small one and large one two cell bodies by this glass partition.The bottom of two cell bodies communicates, and one is arranged on foregoing glass
Around tank for supporting X to the support of granite horizontal guide rail;Described X has Y-direction to crossbearer on granite horizontal guide rail
Granite horizontal guide rail, this Y-direction granite horizontal guide rail and drive it to drive motivation structure along X to the screw mandrel of movement and be connected, spend in Y-direction
The end face of hilllock rock horizontal guide rail is provided with compressed air inlet port, the water being arranged on aforementioned Y-direction granite horizontal guide rail
Somoothing board, a mounting rod that can move up and down and a transducer fixture.
However, above-mentioned medical ultrasonic detection system and medical ultrasonic detection method and system, however it remains not enough as follows:
1. three coordinates knots or X/Y be to granite horizontal guide rail, structure huge structure, complicated it is impossible at will move, even if after mobile,
In need three coordinates or horizontal guide rail are debugged again, therefore be typically arranged at the place of a fixation, for not same district
For the medical ultrasound equipment in domain, detection is inconvenient.
2. the location and installation of hydrophone is it is still desirable to artificial operate.And the water tank of typically medical supersonic equipment is arranged at
Higher place, therefore one side hand labor intensity is big, there is hidden danger;On the other hand, the installation of hydrophone and positioning
Precision is not high with the degree of accuracy, and required time is long, inefficiency.
Content of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provides a kind of easy and simple to handle, from
Dynamicization degree is high, and hydrophone is installed and accurate positioning, the using method of quick Portable medical supersonic detection means.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of using method of Portable medical supersonic detection means, comprises the following steps:
The first step, hydrophone is installed;Base with lifting support is slid onto the water tank side of ultrasonic device to be detected and locks
Fixed, hydrophone is arranged in the fixed seat of hydrophone installing arm, described hydrophone installing arm is concavity circular arc, so that water is listened
The free end of the locating rod that device is overlapped with the center of circle of hydrophone installing arm, camera are on same axis.
Second step, positioning at the beginning of hydrophone;Fixed seat in the first step rises, and makes the free end on hydrophone top and locating rod
It is close, just positioning completes.
3rd step, the secondary positioning of hydrophone;The 90 ° of upsets upwards of locating rod in second step, the top to hydrophone for the camera
End automatically focuses on, takes pictures, and photo is passed to computer, and in computer, Built-in Image identification and image processing software are to reception
Picture is processed, and then calculates hydrophone top and the distance between hydrophone installing arm center of circle value, then, computer refers to
The fixed seat in second step is made to continue to rise the distance value that computer calculates, secondary positioning completes.
4th step, hydrophone is placed in the water tank of ultrasonic device:According to tank height, length and width dimensions, rise descending branch
Frame raises, and cross bar stretches, and makes mounting rod be located at the surface of water tank;Then, lifting support declines, and makes hydrophone be slowly immersed in water
In case, hydrophone top sensitive area is located at the 1/2-2/3 of tank height;Described hydrophone is listened for magnetic complex three-dimensional vector water
Device, this magnetic complex three-dimensional vector hydrophone energy anti-noise jamming, and can position in water tank for the automatic measurement hydrophone.
5th step, ultrasound detection:Hydrophone in 4th step, and should by the ultrasonic numerical value at automatic detection position
In the ultrasonic numerical value of detection and the 4th step, the positional information of detection, sends computer together to.
6th step, all directions ultrasound detection:Mounting rod in 4th step rotates 90 °, and hydrophone also rotates with simultaneously
90 °, after stopping, ultrasonic numerical value at 90 ° for the detection, then by this ultrasonic numerical value and positional information, is sent to again again
Computer;In the same manner, hydrophone rotates 180 °, 270 ° and repeat aforesaid operations.
Described hydrophone installing arm can swing, between described 3rd step and the 4th step, also include hydrophone ripple
The detection of dynamic precision:Hydrophone swing, camera is focused, takes pictures to hydrophone top sensitive area by setpoint frequency,
The information that computer provides according to camera, is calculated with whether the fluctuation range value being judged hydrophone top sensitive area is setting
Determine in scope.
Before the detection of described hydrophone fluctuation precision is placed in the water tank of ultrasonic device with hydrophone, also include hydrophone
The detection of running accuracy:Hydrophone rotates 90 ° respectively, 180 °, 270 °, camera is sensitive to the hydrophone top of each position respectively
Face is focused, takes pictures, and computer calculates each angular position, the fluctuation range value of hydrophone top sensitive area automatically.
The amplitude of described hydrophone installing arm swing is ± 60 °.
Described mounting rod adopts granite material.
After the present invention adopts said method, detection means quickly can be moved to water tank to be detected, easy to use, whole
Individual installation is all automatically performed with detection, high degree of automation.In addition, hydrophone can quick, be accurately positioned, and save manpower.
Brief description
Fig. 1 is a kind of structural representation of present invention Portable medical supersonic equipment supersonic detection device;
Fig. 2 is the schematic diagram of Portable medical supersonic equipment supersonic detection device working condition of the present invention.
Wherein have:1. base;2. roller;3. lifting support;4. support arm;5. mounting rod;6. hydrophone installing arm;7. horizontal
Bar;8. hydrophone;9. computer;10. installation folder;11. locating rods;12. fixed seats;13. cameras;14. water tanks.
Specific embodiment
The present invention is further detailed explanation with concrete better embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of Portable medical supersonic detection means includes base 1, is arranged at the tool of base 1 lower section
Several rollers 2 having lock function, the lifting support 3 being vertically arranged on base 1 and computer 9.
The above-mentioned base 1 with roller 2, enables the supersonic detection device of application, required for arbitrarily carrying or sliding onto
The position of the ultrasonic device of detection.
The lift in height of above-mentioned lifting support 3, is preferably controlled by the motor being connected with computer 9, motor is preferably
Servomotor, and be built in base 1.
The upper horizontal of above-mentioned lifting support 3 is provided with the retractable cross bar 7 of length.The telescopic of cross bar 7
Preferably it is controlled by the motor being connected with computer 9, motor is preferably also servomotor, and be built in base 1.So,
The telescopic of the lift in height of above-mentioned lifting support 3 and cross bar 8 can carry out precise control according to the instruction of computer 9.
The other end of above-mentioned cross bar 7 is connected with a support arm 4, and the bottom of support arm 4 is provided with one and can rotate
Mounting rod 5, mounting rod 5 preferably employs granite material.The angular transducer being connected with computer 9 is provided with mounting rod 5.
The rotation of mounting rod 5, it is also preferred that being controlled by the motor being connected with computer 9, motor is preferably servomotor, and is built in
In base 1.In addition, angular transducer is capable of the anglec of rotation of automatic detection mounting rod 5, meanwhile, also can be according to the finger of computer 9
Order, the anglec of rotation of precise control mounting rod 5 is so as to meet sets requirement.
The bottom setting installation folder 10 of above-mentioned mounting rod 5, one end of this installation folder 10 is fixedly connected with installing 5, also can
Rotate with the rotation of mounting rod 5.
The top of above-mentioned installation folder 10 other end is provided with the groove of an outside insertion, is provided with one and determines in this groove
Position bar 11, locating rod 11 can carry out the turnover of 90 ° of angles upwards.The upset of locating rod 11 is it is also preferred that be connected by with computer 9
Motor be controlled, motor is preferably also servomotor, and is built in base 1.The bottom of installation folder 10 other end connects
Have a hydrophone installing arm 6, this hydrophone installing arm 6 preferably pass through can swing, amplitude of fluctuation be preferably ± 60 °.
When moreover it is possible to automatically be locked, preventing its swing when minimum point stops, the swing of hydrophone installing arm 6 it is also preferred that by with meter
The motor that calculation machine 9 connects is controlled, and motor is preferably also servomotor, and is built in base 1.Thus, it is possible to accurately set
Put amplitude of fluctuation and the hunting frequency of hydrophone installing arm 6, hunting frequency here, need to arrange is slow, subsequently to take the photograph
As 13 can clearly shoot.
Above-mentioned hydrophone installing arm 6 is concavity circular arc, therefore it can be made from sound field center former, it is to avoid the generation of interference, from
And in ultrasound detection, test result can be made more accurate, the reliability of test data is high.
The bottom inside of hydrophone installing arm 6 is provided with the fixed seat 12 for installing hydrophone 8.Here hydrophone is excellent
Elect vector hydrophone as, such as magnetic complex three-dimensional vector hydrophone, therefore can obtain Vector Message and the present position letter of sound field
Breath, improves anti-noise jamming ability and the line-spectrum detection ability of system.The height of fixed seat 12 can lift, its lift in height
It is controlled by the motor being connected with computer 9, motor is preferably also servomotor, and be built in base 1.
When above-mentioned locating rod 11 does not flip up, the free end of locating rod 11 can be overlapped with the center of circle of hydrophone installing arm 6,
The camera 13 that at least one is connected is additionally provided with the support arm 4 of mounting rod 5 surrounding, each shooting with computer 9
Vertical range between 13 with mounting rod 5 is equal with the radius of hydrophone installing arm 6.Namely each camera 13 all listened with water
The top sensitive area of device 8 is corresponding, to be quickly focused to it, to be positioned to take pictures.
Above computer 9 is built-in with acoustical power inspection software and image recognition and image processing software.
As shown in Fig. 2 a kind of using method of Portable medical supersonic detection means, comprise the following steps:
The first step, hydrophone is installed;Base 1 with lifting support 3 is slid onto water tank 14 side of ultrasonic device to be detected
And lock, hydrophone 8 is arranged in the fixed seat 12 of hydrophone installing arm 6.Hydrophone installing arm 6 is concavity circular arc, makes
The free end of the locating rod 11 that hydrophone 8 is overlapped with the center of circle of hydrophone installing arm 6, camera 13 are on same axis.
Second step, positioning at the beginning of hydrophone;Fixed seat 12 in the first step rises, and makes hydrophone 8 top and locating rod 11
Free end is close, and just positioning completes.
3rd step, the secondary positioning of hydrophone;The 90 ° of upsets upwards of locating rod 11 in second step, camera 13 is to hydrophone 8
Top automatically focus on, take pictures, and photo is passed to computer 9, Built-in Image identification and image processing software in computer 9
Process to receiving picture, then calculate hydrophone 8 top and the distance between hydrophone installing arm 6 center of circle value, then,
The fixed seat 12 that computer 9 instructs in second step continues to rise the distance value that computer 9 calculates, and secondary positioning completes.
4th step, the detection of hydrophone fluctuation precision:Hydrophone 8 swing, camera 13 is listened to water by setpoint frequency
Device 8 top sensitive area is focused, takes pictures, the information that computer 9 provides according to camera, is calculated and is judged hydrophone 8
Whether the fluctuation range value of top sensitive area is in setting range.
5th step, the detection of hydrophone running accuracy:Hydrophone 8 rotates 90 ° respectively, 180 °, 270 °, camera 13 is respectively
The hydrophone 8 top sensitive area of each position is focused, takes pictures, computer 9 calculates each angular position, hydrophone 8 automatically
The fluctuation range value of top sensitive area.
6th step, hydrophone is placed in the water tank of ultrasonic device:According to water tank 14 height, length and width dimensions, lifting
Support 3 raises, and cross bar 7 stretches, and makes mounting rod 5 be located at the surface of water tank 14;Then, lifting support 3 declines, and makes hydrophone 8
It is slowly immersed in water tank 14, hydrophone 8 top sensitive area is located at the 1/2-2/3 of water tank 14 height;Hydrophone 8 is combined three for magnetic
N dimensional vector n hydrophone, can position in water tank 14 for the automatic measurement hydrophone 8.
7th step, ultrasound detection:Hydrophone 8 in 4th step is by the ultrasonic numerical value at automatic detection position, and incites somebody to action
In the ultrasonic numerical value of this detection and the 4th step, the positional information of detection, sends computer 9 together to.
8th step, all directions ultrasound detection:Mounting rod 5 in 4th step rotates 90 °, and hydrophone 8 also revolves therewith simultaneously
Turn 90 °, after stopping, ultrasonic numerical value at 90 ° for the detection, then by this ultrasonic numerical value and positional information, sends again again
To computer 9;In the same manner, hydrophone rotates 180 °, 270 ° and repeat aforesaid operations.