CN102526895B - A kind of ultrasonic therapeutic apparatus and WATER AS FLOW MEDIUM control method thereof - Google Patents

Abstract

The invention provides a kind of ultrasonic therapeutic apparatus, comprise auxiliary water control system, it comprises sites acquiring unit, water level control unit and/or changes water control unit, wherein, sites acquiring unit is used for obtaining the ultrasonic body surface position passed through according to the monitoring image obtained by ultrasonic image monitoring system; Water level control unit is used for making human body be immersed in desired depth in WATER AS FLOW MEDIUM according to the body surface position obtained by sites acquiring unit and the water lev el control water inlet detected by level detection sensor and draining; Change water control unit, whether it is for existing the number of bubbles on overheated feature and/or test and monitoring image according to the ultrasonic skin surface passed through of body surface position judgment obtained by sites acquiring unit, if there is overheated feature and/or number of bubbles is greater than threshold value, then control to change water.The present invention can realize the automatic control of the water level of WATER AS FLOW MEDIUM, water temperature and oxygen content.

Description

A kind of ultrasonic therapeutic apparatus and WATER AS FLOW MEDIUM control method thereof

Technical field

The present invention relates to ultrasonic therapeutic technical field, particularly relate to a kind of ultrasonic therapeutic apparatus and WATER AS FLOW MEDIUM control method thereof.

Background technology

Ultrasonic therapeutic technology a kind ofly utilizes hyperacoustic penetrance and can act on the technology of human lesion tissue by focusing, is widely used in the treatment of various diseases at present.In the art, because ultrasound wave is decayed very large in atmosphere, enter the ultrasound wave played a role in human body so just little, affect therapeutic effect, therefore, the ultrasound wave of external transmitting needs, by medium (such as water) coupling, to enter human body through skin.For WATER AS FLOW MEDIUM, need to regulate water level, water temperature and oxygen content timely and reasonably, to ensure effectiveness and the safety of ultrasonic therapeutic.But, in current ultrasonic therapeutic process, be all observed according to personal experience by operation doctor, judge and regulate water level, water temperature and oxygen content substantially, if control improper or careless, be easy to cause danger.

Below, be described for the high-strength focusing ultrasonic therapy equipment that can be used for treating tumor.Medical research finds, the thermostability of tumor cell is poor than normal cell, under the temperature environment more than 42.5 DEG C, and inner tumour cell death in 30 minutes, and Normocellular damage is comparatively gently and reversible.According to this feature of tumor cell, high-strength focusing ultrasonic therapy equipment is generally energy source with ultrasound wave, utilize hyperacoustic penetrance and can focusing, launch high intensity focused ultrasound with ultrasonic therapeutic head in vitro and pass through medium couples, enter human body through skin, focus on a spatial point of tumor tissues, and temperature rising (higher than 60 DEG C) that instantaneous generation is strong, add its cavitation and mechanical oscillation effect, destroy the tissue of spatial point.By carrying out tumor so being treated to face, by the pointwise of face to body to line, by line by point, thus treating whole tumor tissues, realizing therapeutic purposes.

Carry out in the process for the treatment of at use high intensity focused ultrasound, in order to the tissue in guiding ultrasonic focusing location and monitor treatment process is inner and the situation of change of body surface, high-strength focusing ultrasonic therapy equipment is generally equipped with image monitoring, current main flow be configured to B ultrasonic sound image monitoring.

A large amount of ultrasound medicine basic research and clinical practice show: the important leverage at the timely reasonable adjusting of high-strength focusing ultrasonic therapy process middle water level, water temperature and oxygen content being operation effectiveness and safety.

With regard to water level and water temperature, when carrying out high-octane ultrasonic therapeutic, body surface (treating the ultrasonic part passed through) have accumulated a large amount of heats, if this part skin surface is exposed suddenly in atmosphere, skin burn in various degree can be produced, add anesthetis use amount less and less in current ultrasonic therapeutic, cause the movement of patient self to exacerbate the possibility of this skin burn.Secondly, higher water temperature (lower than but close to body temperature) be disadvantageous or even harmful (when water temperature is higher than normal body temperature) for cooling body surface in time.In addition, if control the improper interface producing air and water in sound passage (treating the ultrasonic path passed through) region, can produce reflection at this interface after treatment ultrasound emission, the acoustic beam reflected also can produce certain infringement to equipment.

In order to monitor the water level of WATER AS FLOW MEDIUM and the change of water temperature in ultrasonic therapeutic process, be generally have level sensor and cooling-water temperature sensor at WATER AS FLOW MEDIUM container content, and give operation doctor in software operation interface prompt.

Water temperature is controlled, the read value of cooling-water temperature sensor can be utilized to make corresponding automatization assist control process, but this mode lacks motility, this is owing to can discharge a large amount of energy in ultrasonic output procedure, due to the individual variation of patient, the reaction of patient's body surface is also far from each other, even if water temperature is in relatively reasonable scope, the skin surface of some patients also can produce burning in various degree due to heat radiation not in time.

For water lev el control, depend on the observation of operation doctor to monitoring image or even actual water level and just can adjust judgement.This mode is very not directly perceived, even if there is patterned display to be also only indicate water outlet position in a reservoir, the state of the state of WATER AS FLOW MEDIUM and human body is not connected, doctor repeatedly will regulate empirically by observation and water just can be made to reach required state over the course for the treatment of.

With regard to oxygen content, when air in WATER AS FLOW MEDIUM (mainly oxygen) content is higher, ultrasonic in water, loss must be more, cause therapeutic efficiency to decline more.When oxygen content in WATER AS FLOW MEDIUM too high (oxygen content is greater than 4.0ppm), WATER AS FLOW MEDIUM just must be changed to reduce oxygen content.But, still lack the Quantitative Monitoring means to medium oxygen content in water at present, general is also by operating doctor according to the presence or absence to underwater bubble on monitoring image (if oxygen content in water is too much, can produce bubble after treatment ultrasound emission), how many observations to make corresponding adjustment.

Summary of the invention

In order to solve the problem, the invention provides a kind of ultrasonic therapeutic apparatus and WATER AS FLOW MEDIUM control method thereof, to realize automatic detection and the adjustment of the water level of WATER AS FLOW MEDIUM, water temperature and oxygen content.

In order to realize above object, the invention provides a kind of ultrasonic therapeutic apparatus, comprise ultrasonic image monitoring system for obtaining monitoring image and the level detection sensor for the water level that detects WATER AS FLOW MEDIUM, it is characterized in that, also comprise auxiliary water control system, described auxiliary water control system comprises: sites acquiring unit, and it obtains the ultrasonic body surface position passed through for the monitoring image obtained by ultrasonic image monitoring system; And water level control unit, it makes human body be immersed in desired depth in WATER AS FLOW MEDIUM for the body surface position that obtained by sites acquiring unit and the water lev el control water inlet detected by level detection sensor and draining.

Preferably, described body surface position utilizes and represents that the skin curves of the ultrasonic body surface skin boundary passed through represents.

Preferably, described water level control unit performs the operation of following water lev el control: obtain water level and skin curves from level detection sensor and sites acquiring unit respectively, and judge whether high than the skin curves predetermined watermark threshold of water level, if, then repeat this step, otherwise perform following steps; With judge whether described water level exceedes maximum permission water level, if do not exceeded, then control water inlet till the high described watermark threshold of water table ratio skin curves, if exceeded, then control draining, till being down to below maximum permission water level to make water level, then above-mentioned steps is repeated, wherein, according to the needs for the treatment of, described watermark threshold is for being not less than 3cm.Preferably, described watermark threshold is between 3cm-5cm.

Correspondingly, the invention provides a kind of WATER AS FLOW MEDIUM method for controlling water level of ultrasonic therapeutic apparatus, comprising: obtain the ultrasonic body surface position passed through according to the monitoring image that ultrasonic image monitoring system obtains; Human body is made to be immersed in desired depth in WATER AS FLOW MEDIUM according to the body surface position obtained and the water lev el control water inlet detected by level detection sensor and draining.

On the other hand, the invention provides a kind of ultrasonic therapeutic apparatus, comprise the ultrasonic image monitoring system for obtaining monitoring image, it is characterized in that, also comprise auxiliary water control system, described auxiliary water control system comprises: sites acquiring unit, and it obtains the ultrasonic body surface position passed through for the monitoring image obtained by ultrasonic image monitoring system; With change water control unit, whether it exists overheated feature for the ultrasonic skin surface passed through of body surface position judgment obtained by sites acquiring unit, if so, then controls to change water, otherwise repeats this step; And/or the number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined blister threshold value, if so, then control to change water, otherwise repeat this step.

Preferably, to show as skin surface border rough for described overheated feature.

Preferably, described bubble threshold value is no more than 15, and further preferred described bubble threshold value is 5-15.

Correspondingly, the WATER AS FLOW MEDIUM that the invention provides a kind of ultrasonic therapeutic apparatus changes water controling method, comprising: obtain the ultrasonic body surface position passed through according to the monitoring image obtained by ultrasonic image monitoring system; Whether there is overheated feature according to the ultrasonic skin surface passed through of the body surface position judgment obtained by sites acquiring unit, if so, then control to change water, otherwise repeat this step; And/or the number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined bubble threshold value, if so, then control to change water, otherwise repeat this step.

On the other hand, the invention provides a kind of ultrasonic therapeutic apparatus, comprise ultrasonic image monitoring system for obtaining monitoring image and the level detection sensor for the water level that detects WATER AS FLOW MEDIUM, it is characterized in that, also comprise auxiliary water control system, described auxiliary water control system comprises: sites acquiring unit, and it obtains the ultrasonic body surface position passed through for the monitoring image obtained by ultrasonic image monitoring system; Water level control unit, it makes human body be immersed in desired depth in WATER AS FLOW MEDIUM for the body surface position that obtained by sites acquiring unit and the water lev el control water inlet detected by level detection sensor and draining; With change water control unit, whether it exists overheated feature for the ultrasonic skin surface passed through of body surface position judgment obtained by sites acquiring unit, if so, then controls to change water, otherwise repeats this step; And/or the number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined bubble threshold value, if so, then control to change water, otherwise repeat this step.

By above technical scheme, the present invention can based on the water level of the automatic control medium water of the image information of monitoring image, water temperature and oxygen content.

Accompanying drawing explanation

Fig. 1 is the structure chart of existing high-strength focusing ultrasonic therapy equipment;

Fig. 2 is the structure chart of the high-strength focusing ultrasonic therapy equipment of the first embodiment of the present invention;

Fig. 3 is the flow chart of the WATER AS FLOW MEDIUM method for controlling water level of the first embodiment of the present invention;

Fig. 4 is the schematic diagram of the position relationship between B ultrasonic image and ultrasonic probe;

Fig. 5 is the schematic diagram of the position relationship of B ultrasonic image water level and actual water level (level detection sensor value of feedback);

Fig. 6 is the flow chart that the WATER AS FLOW MEDIUM of the second embodiment of the present invention changes water controling method;

Fig. 7 is the flow chart of the level and smooth evaluation algorithm of skin curves of the second embodiment of the present invention; With

Fig. 8 is the schematic diagram of the level and smooth evaluation algorithm of skin curves of the second embodiment of the present invention.

Detailed description of the invention

Below, present invention is described with embodiment with reference to the accompanying drawings.Following by the embodiment of description, be described for high-strength focusing ultrasonic therapy equipment, but should be appreciated that, the present invention is not limited to high-strength focusing ultrasonic therapy equipment, but similarly can be applied to the ultrasonic therapeutic apparatus of other type using WATER AS FLOW MEDIUM.

(the first embodiment)

The object of the present embodiment is the water level of control medium water.In the present embodiment, utilize the B ultrasonic image of the B-mode ultrasonic image monitoring system of high-strength focusing ultrasonic therapy equipment, use image processing techniques on image, find out the horizontal plane position of body surface position and WATER AS FLOW MEDIUM, and judge whether human body is immersed in the appropriate depth in WATER AS FLOW MEDIUM by the horizontal plane position comparing body surface position and WATER AS FLOW MEDIUM, thus control water inlet and draining.Like this, the state of the state of human body and WATER AS FLOW MEDIUM can be connected, thus prevent from causing because water level is lower when high-strength focusing ultrasonic therapy, body surface part exposes the problem causing skin burn in atmosphere.

Fig. 1 is the structure chart of existing high-strength focusing ultrasonic therapy equipment.As shown in Figure 1, existing high-strength focusing ultrasonic therapy equipment comprises ultrasonic image monitoring system 1, treatment subsystem 2, motion subsystem and high-strength focusing ultrasonic therapy output subsystem 4, wherein, ultrasonic image monitoring system 1 is for obtaining B ultrasonic monitoring image; Treatment subsystem 2 comprises the level detection sensor (being arranged on the bottom filling the WATER AS FLOW MEDIUM container of WATER AS FLOW MEDIUM for immersing human body) of the water level for detecting WATER AS FLOW MEDIUM.Over the course for the treatment of, water lev el control is manual.Doctor, by the observation to water level on B ultrasonic monitoring image, the basis of level detection sensor sensing numerical value sets new target water level numerical value, thus reaches the object of controlling water level.

Fig. 2 is the structure chart of the high-strength focusing ultrasonic therapy equipment of the first embodiment of the present invention.Comparison diagram 1 and Fig. 2 can find out, improvements of the present invention are to add auxiliary water control system 5 between ultrasonic image monitoring system 1 and treatment subsystem 2, control for utilizing the water level of ultrasonoscopy to WATER AS FLOW MEDIUM obtained by ultrasonic image monitoring system 1.The opening and closing of auxiliary water control system 5 control by operating doctor.

The auxiliary water control system 5 of the present embodiment comprises sites acquiring unit and water level control unit, and wherein, the monitoring image that sites acquiring unit is used for being obtained by ultrasonic image monitoring system 1 obtains the ultrasonic body surface position passed through; Water level control unit is used for the body surface position that obtained by sites acquiring unit and the water lev el control water inlet that detected by level detection sensor and draining make human body be immersed in desired depth in WATER AS FLOW MEDIUM.

In the present embodiment, the body surface position skin curves of the skin boundary representing body surface represents, that is, sites acquiring unit obtains the skin curves of the ultrasonic body surface passed through, and the water lev el control that water level control unit detects according to this skin curves and level detection sensor is intake and draining.

Fig. 3 is the flow chart of the WATER AS FLOW MEDIUM method for controlling water level performed by sites acquiring unit and water level control unit of the first embodiment of the present invention.

First, in step 301, judge whether to allow to carry out automatic water level control, that is, operate doctor and whether open automatic water level control.Control if operation doctor opens automatic water level, then perform following circulation water level monitor and forecast flow process, otherwise terminate automatic water level control.

Then, in step 302, a secondary current static monitoring image (that is, current monitor image) is obtained from ultrasonic image monitoring system 1.Then, in step 303, the skin site of image processing techniques human body body surface from current monitor image is used, that is, skin curves.Such as, can be white according to human body skin in B ultrasonic monitoring image, and the feature that remainder is black utilize edge detection method to find out skin boundary as skin curves.Then, in step 304, judge whether skin curves to be detected, if skin curves detected, then perform step 305 and 306, otherwise perform step 307.

In step 305, read the value (that is, the water level of detection) of level detection sensor, and read value is converted to the position on current monitor image.Transformation process is as follows: because level detection sensor is arranged on the bottom of WATER AS FLOW MEDIUM container, fixing, and the Ultrasonic-B probe of B-mode ultrasonic monitor image system 1 is fixed on the mechanical component in WATER AS FLOW MEDIUM container, the position of this component can obtain by reading encoder values, therefore, the water level of level detection sensor detection and the position relationship of Ultrasonic-B probe can be obtained.In addition, as shown in Figure 4, the physical space of B ultrasonic imaging is relative initial point with the center of Ultrasonic-B probe upper surface, image direction upwards, areas imaging is roughly at 4CM to 36CM, and imaging precision is grade, according to this relation, the water level of level detection sensor detection and the position relationship of B ultrasonic monitoring image can be set up, thus the water level of detection is converted into the picture position in the image coordinate space of current monitor image.

As shown in Figure 5, level detection sensor is installed on the bottom of WATER AS FLOW MEDIUM container, and this component geometry height is disregarded (because setting height(from bottom) is less than sensor accuracy).Suppose that the height of water level that level detection sensor is fed back is w, Ultrasonic-B probe upper surface is d relative to the level altitude of container bottom, and the position of waterline on image is p, then the pass of three is:

p＝w-d

Then, within step 306, the position of water level on current monitor image and the position of skin curves on current monitor image are compared, to judge whether high than the position of skin curves on the current monitor image predetermined watermark threshold in the position of water level on current monitor image, wherein, according to clinical experience, watermark threshold is not less than 3cm and is considered to be safe.Preferably, watermark threshold is between 3cm-5cm (comprising 3cm and 5cm).Here, the position of skin curves on current monitor image can represent with the intersection point of Y-axis of skin curves and image coordinate space or the minimum point of skin curves or other coordinate in image coordinate space.In the present embodiment, the position of skin curves on the current monitor image coordinate of the intersection point of the Y-axis of skin curves and image coordinate space represents, and watermark threshold gets 5cm.If judge that the position of water level on current monitor image is higher than the position 5cm more than of skin curves on current monitor image, then terminate single monitoring task, jump to step 301 and enter next circulation.If judge the position of water level on current monitor image not higher than the position 5cm more than of skin curves on current monitor image, then perform following steps.

In step 307, judge whether the current level that level detection sensor detects exceedes maximum permission water level, if do not exceeded, then in step 308, water inlet is controlled till the high described watermark threshold of water table ratio skin curves, human body is immersed in the water, if exceeded, then in a step 309, draining is controlled, till being down to below maximum permission water level to make water level, thus the water of draining excess.Here, maximum permission water level acquiescence is the position of the upper surface of WATER AS FLOW MEDIUM container, by operating the different set of doctor according to case during concrete treatment.After controlling water inlet or draining, terminate single monitoring task, jump to step 301 and enter next circulation.

By above method, automatically can intake and draining according to body surface position and water lev el control, be immersed in the degree of depth suitable in WATER AS FLOW MEDIUM, when preventing focused ultrasound therapy to make human body, ultrasonic the causing exposed to air skin of high strength is burnt, thus ensures the safety of ultrasonic therapeutic.Here point out, about the acquisition of body surface position, be not limited to the acquisition of the skin curves shown in Fig. 3, such as, other image processing techniques (such as, region segmentation method) can be utilized to obtain skin curves, or, consecutive image sequence can be utilized to obtain dynamic skin curves.

(the second embodiment)

The object of the present embodiment is water temperature and the oxygen content of control medium water.

With regard to water temperature, over the course for the treatment of, when water temperature over-high, cooling is not enough because of hyperabsorption heat for body surface skin, skin may be caused slightly to burn, now, body surface skin can present overheated feature, monitoring image shows as skin surface border unsmooth, then severe one shows as graininess even bag-like projection, the skin curves in this case obtained also is rough.Therefore, in the present embodiment, utilize the B ultrasonic image of the B-mode ultrasonic image monitoring system of high-strength focusing ultrasonic therapy equipment, image processing techniques is used to detect the skin curves on image, if detect that skin curves is rough, then there is overheated (burning) feature in skin, otherwise skin does not exist overheated feature, and water temperature is suitable.Certainly, except skin curves, other characteristics of image (such as, exporting the change of average gray value around the ultrasonic body surface passed through in front and back) also can be utilized to express this change of body surface skin.

With regard to oxygen content, usual body surface and Ultrasonic-B probe have certain distance, and this part is filled by WATER AS FLOW MEDIUM, when oxygen content is too much in WATER AS FLOW MEDIUM, can produce bubble over the course for the treatment of.WATER AS FLOW MEDIUM shows as black on monitoring image, and bubble shows as the circular white speckle of diameter about 1 millimeter on monitoring image.When water oxygen Gas content is higher, the monitoring image after ultrasound wave exports in about 1 second can observes bubble and rise from bottom.Therefore, in the present embodiment, using the quantity of bubble on image processing techniques surveillance map picture, carrying out automatic water-replacing auxiliary adjustment when exceeding a certain amount of.During current ultrasonic therapeutic, the condition of water is: between 10 degrees Celsius to 25 degrees Celsius, oxygen content is at below 3PPM.A large number of experiments show that: water oxygen Gas content is larger, the bubble produced in WATER AS FLOW MEDIUM during ultrasonic output is more, and when number of bubbles is more than or equal to 15, the oxygen content of WATER AS FLOW MEDIUM is more than 3ppm.

In the present embodiment, identical with the first embodiment, utilize the auxiliary water control system 5 connected between ultrasonic image monitoring system 1 and treatment subsystem 2 to control the water temperature of WATER AS FLOW MEDIUM and oxygen content according to the ultrasonoscopy obtained by ultrasonic image monitoring system 1.

Comprise sites acquiring unit according to the auxiliary water control system 5 of the present embodiment and change water control unit, wherein, the monitoring image that sites acquiring unit is used for being obtained by ultrasonic image monitoring system 1 obtains the ultrasonic body surface position passed through; Change water control unit and whether there is overheated feature for the ultrasonic skin surface passed through of body surface position judgment obtained by sites acquiring unit, if so, then control to change water, otherwise repeat this step; And/or the number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined bubble threshold value, if so, then control to change water, otherwise repeat this step.Here, as mentioned above, bubble threshold value can be taken as no more than 15, and preferably, blister threshold value is between 5-15.Such as, when requiring comparatively strict, desirable 10 of bubble threshold value.

In the present embodiment, identical with the first embodiment, the body surface position skin curves of the skin boundary representing the ultrasonic body surface passed through represents.Sites acquiring unit obtains skin curves, changes water control unit and judges whether this skin curves exists the number of bubbles on overheated feature and/or test and monitoring image, thus controls the water temperature of WATER AS FLOW MEDIUM and/or oxygen content.

Fig. 6 is the flow chart being changed water controling method by sites acquiring unit and the WATER AS FLOW MEDIUM of changing water control unit execution according to a second embodiment of the present invention.

First, in step 601, judge whether to allow to carry out automatic water-replacing control, that is, operate doctor and whether open automatic water-replacing control.If operation doctor opens automatic water-replacing and controls, then perform following inflow and outflow of water monitor and forecast flow process, otherwise terminate automatic water-replacing control.

Then, in step 602, a secondary current static monitoring image (that is, current monitor image) is obtained from ultrasonic image monitoring system 1.

Then, perform step 603-605, whether there is overheated feature by detection of skin curve and judge that whether water temperature is too high.Concrete testing process is as follows.First, in step 603, the same with step 603, the skin curves of human body body surface from current monitor image.Then, in step 604, judge whether skin curves to be detected, if skin curves detected, then perform step 605, otherwise terminate single monitoring task, jump to step 601 and enter next circulation.In step 605, whether detection of skin exists overheated feature, that is, as mentioned above, judges that whether skin curves is level and smooth.If skin curves is unsmooth, that is, there is overheated feature in skin, then perform step 608-609, controls to change water, if skin curves is level and smooth, then show that water temperature is suitable, now, terminates single monitoring task, jump to step 601 and enter next circulation.

Fig. 7 is the flow chart of the level and smooth evaluation algorithm of skin curves according to a second embodiment of the present invention.

First, in step 701, from one end of curve, calculate the slope of the line of 4 pixels of being separated by (or the pixel of other number, such as, 3 pixels or 5 pixels) one by one.Suppose that the slope function calculating x, y 2 line slopes is Fn (x, y), so as shown in Figure 8, calculate Fn (a1 successively, e3), Fn (b2, f4), Fn (c2, g4), Fn (d3, g5), Fn (e3, h5), Fn (f4, i5) ..., until the slope of the line of possible 4 pixels of being separated by all is completed by calculating, suppose that the slope value calculated is designated as successively: s1, s2, s3, s4, s 5, s6 ...

Then, in a step 702, the difference of adjacent two slopes is calculated, i.e. (s1-s2), (s2-s3), (s3-s4), (s4-s5), (s5-s6) ...Suppose that these differences are designated as d1 successively, d2, d3, d4, d5, d6 ...

Then, in step 703, to the mathematic interpolation arithmetic mean of instantaneous value obtained in a step 702, remember that this meansigma methods is A0.

Then, in step 704, the absolute value of the difference of each difference and meansigma methods A0 is calculated one by one, such as | d1-A0|, | d2-A0|, | d3-A0|, | d4-A0|, | d5-A0|, | d6-A0| ..., remember that these values are c1, c2, c3, c4, c5, c6 successively ...

Finally, in step 705, add up and be greater than predetermined difference value (such as in income value in step 704,0.2) quantity of value, and judge whether the quantity being greater than the value of predetermined difference value is greater than predetermined number (such as, 5) in step 706, if, in step 707, then judge that skin is unsmooth, exists overheated feature, otherwise judge that skin is level and smooth in step 708.Then, in step 709, judged result is returned.

In addition, while execution step 603-605, also perform step 606-607, judge that whether the oxygen content of WATER AS FLOW MEDIUM is excessive by the quantity of bubble in detected image.Specifically, in step 606, the number of bubbles on current monitor image is detected.Such as, on current monitor image, first carry out binaryzation, then use partitioning algorithm to find out the element of diameter about 1mm as bubble to the region below skin curves in the image after binaryzation, and calculate the number of these elements.Then, in step 607, judge whether the number of bubbles obtained in step 606 is greater than bubble threshold value, if be greater than bubble threshold value, then perform step 608-609, water is changed in control, if be not more than bubble threshold value, then show that the oxygen content of WATER AS FLOW MEDIUM is suitable, now, terminate single monitoring task, jump to step 601 and enter next circulation.Here, bubble threshold value can be located between 5-15, is set before the treatment by operation doctor.

When carrying out changing water, first in step 608, judging whether to change water, if change water, then terminating single monitoring task, jumping to step 601 and enter next circulation, otherwise perform step 609.In step 609, if the replacing water time, and water instruction is changed in transmission, and open and change water, quantity of exchanged water accounts for 30% of WATER AS FLOW MEDIUM container capacity and is advisable.Here, change the water time and such as can give tacit consent to and be set to 2 minutes, certainly also can be arranged voluntarily by operation doctor.

By above embodiment, the automatic detection of the water level of WATER AS FLOW MEDIUM and water temperature, oxygen content can be realized respectively.Certainly, also the first embodiment and the second embodiment can be combinationally used, that is, auxiliary water control system 5 can comprise sites acquiring unit, water level control unit simultaneously and change water control unit.In addition, this description is described using human body as ultrasonic therapeutic object, but should be appreciated that, the present invention is applicable to any organism.

Below with reference to drawings and Examples to invention has been detailed description, but should be appreciated that, the present invention is not limited to above disclosed specific embodiment, anyly all should be included in protection scope of the present invention based on modification of the present invention.

Claims (12)

1. a ultrasonic therapeutic apparatus, comprise ultrasonic image monitoring system for obtaining monitoring image and the level detection sensor for the water level that detects WATER AS FLOW MEDIUM, it is characterized in that, this ultrasonic therapeutic apparatus also comprises auxiliary water control system, and described auxiliary water control system comprises:

Sites acquiring unit, it is for obtaining the ultrasonic body surface position passed through according to the monitoring image obtained by ultrasonic image monitoring system; With

Water level control unit, it is immersed in desired depth in WATER AS FLOW MEDIUM for making human body according to the body surface position obtained by sites acquiring unit and the water lev el control water inlet detected by level detection sensor and draining;

Described water level control unit performs the operation of following water lev el control:

1) obtain water level and skin curves from level detection sensor and sites acquiring unit respectively, and judge whether high than the skin curves predetermined watermark threshold of water level, if so, then repeat this step, otherwise perform following steps 2);

2) judge whether described water level exceedes maximum permission water level, if do not exceeded, then control to enter water till the high described watermark threshold of water table ratio skin curves, if exceeded, then control draining, till being down to below maximum permission water level to make water level,

Then above-mentioned steps 1 is repeated).

2. equipment according to claim 1, is characterized in that, described body surface position utilizes and represents that the skin curves of the ultrasonic body surface skin boundary passed through represents.

3. equipment according to claim 1, is characterized in that, wherein, described watermark threshold is for being not less than 3cm.

4. equipment according to claim 3, is characterized in that, wherein, described watermark threshold is between 3cm-5cm.

5. a WATER AS FLOW MEDIUM method for controlling water level for ultrasonic therapeutic apparatus, described ultrasonic therapeutic apparatus comprises ultrasonic image monitoring system for obtaining monitoring image and the level detection sensor for the water level that detects WATER AS FLOW MEDIUM, and described method comprises:

The ultrasonic body surface position passed through is obtained according to the monitoring image obtained by ultrasonic image monitoring system;

Human body is made to be immersed in desired depth in WATER AS FLOW MEDIUM according to the body surface position obtained and the water lev el control water inlet detected by level detection sensor and draining; Be specially:

1) obtain water level and skin curves from level detection sensor and sites acquiring unit respectively, and judge whether high than the skin curves predetermined watermark threshold of water level, if so, then repeat this step, otherwise perform following steps 2);

2) judge whether described water level exceedes maximum permission water level, if do not exceeded, then control to enter water till the high described watermark threshold of water table ratio skin curves, if exceeded, then control draining, till being down to below maximum permission water level to make water level,

Then above-mentioned steps 1 is repeated).

6. a ultrasonic therapeutic apparatus, comprise the ultrasonic image monitoring system for obtaining monitoring image, it is characterized in that, this ultrasonic therapeutic apparatus also comprises auxiliary water control system, and described auxiliary water control system comprises:

Sites acquiring unit, it is for obtaining the ultrasonic body surface position passed through according to the monitoring image obtained by ultrasonic image monitoring system; With

Change water control unit, whether it is for existing overheated feature according to the ultrasonic skin surface passed through of body surface position judgment obtained by sites acquiring unit, if so, then controls to change water, otherwise repeats this step; And/or the number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined bubble threshold value, if so, then control to change water, otherwise repeat this step.

7. equipment according to claim 6, is characterized in that, it is rough that described overheated feature shows as skin surface border.

8. equipment according to claim 6, is characterized in that, described bubble threshold value is no more than 15.

9. the WATER AS FLOW MEDIUM of ultrasonic therapeutic apparatus changes a water controling method, and described ultrasonic therapeutic apparatus comprises the ultrasonic image monitoring system for obtaining monitoring image, and described method comprises:

The ultrasonic body surface position passed through is obtained according to the monitoring image obtained by ultrasonic image monitoring system;

Whether there is overheated feature according to the ultrasonic skin surface passed through of the body surface position judgment obtained by sites acquiring unit, if so, then control to change water, otherwise repeat this step; And/or

Number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined bubble threshold value, if so, then control to change water, otherwise repeat this step.

10. method according to claim 9, is characterized in that, described bubble threshold value is no more than 15.

11. 1 kinds of ultrasonic therapeutic apparatus, comprise ultrasonic image monitoring system for obtaining monitoring image and the level detection sensor for the water level that detects WATER AS FLOW MEDIUM, it is characterized in that, this ultrasonic therapeutic apparatus also comprises auxiliary water control system, and described auxiliary water control system comprises:

Sites acquiring unit, it is for obtaining the ultrasonic body surface position passed through according to the monitoring image obtained by ultrasonic image monitoring system;

Water level control unit, it is immersed in desired depth in WATER AS FLOW MEDIUM for making human body according to the body surface position obtained by sites acquiring unit and the water lev el control water inlet detected by level detection sensor and draining; With

Change water control unit, whether it is for existing overheated feature according to the ultrasonic skin surface passed through of body surface position judgment obtained by sites acquiring unit, if so, then controls to change water, otherwise repeats this step; And/or the number of bubbles on test and monitoring image, and judge whether number of bubbles is greater than predetermined bubble threshold value, if so, then control to change water, otherwise repeat this step.

12. equipment according to claim 11, is characterized in that, described bubble threshold value is no more than 15.