CN102526895A - Ultrasonic therapy equipment and medium water control method thereof - Google Patents
Ultrasonic therapy equipment and medium water control method thereof Download PDFInfo
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Abstract
The invention provides ultrasonic therapy equipment which comprises an auxiliary water control system. The auxiliary water control system comprises a body surface position obtaining unit, a water level control unit and/or a water change control unit, wherein the body surface position obtaining unit is used for obtaining the body surface position of human body through which ultrasound passes according to the monitored image obtained by an ultrasonic image monitoring system; the water level control unit is used for controlling the water intake and water drainage according to the body surface position of human body obtained by the body surface position obtaining unit and the water level detected by a water level detection sensor so that the human body is immersed to a predetermined depth in the medium water; the water change control unit is used for judging whether the body surface skin through which ultrasound passes has overheating feature and/or detecting the number of air bubbles on the monitored image according to the body surface position of human body obtained by the body surface position obtaining unit; and if overheating feature exists and/or the number of air bubbles is greater than a threshold, the water change control unit controls to change water. According to the invention, automatic control on water level, water temperature and oxygen content of the medium water can be realized.
Description
Technical field
The present invention relates to the ultrasonic therapeutic technical field, relate in particular to a kind of ultrasonic therapeutic apparatus and WATER AS FLOW MEDIUM control method thereof.
Background technology
But the ultrasonic therapeutic technology is a kind of technology of utilizing hyperacoustic penetrance and focusing to act on the human lesion tissue, is widely used in multiple treatment of diseases at present.In this technology, because ultrasound wave decays very greatly, get into the ultrasound wave that plays a role in the human body so just seldom in air, influence therapeutic effect, therefore, external ultrasonic waves transmitted need pass through medium (such as water) coupling, process skin entering human body.For WATER AS FLOW MEDIUM, need regulate water level, water temperature and oxygen content timely and reasonably, to ensure the effectiveness and the safety of ultrasonic therapeutic.But, in present ultrasonic therapeutic process, all be to observe, judge according to the personal experience and regulate water level, water temperature and oxygen content basically by the operation doctor, if control improperly or careless, be easy to cause danger.
Below, be that example describes with the high-strength focusing ultrasonic therapy equipment that can be used for treating tumor.Medical research finds, the thermostability of tumor cell is than normal cell difference, under the temperature environment more than 42.5 ℃, and inner tumour cell death in 30 minutes, and Normocellular damage is light and can reverse.According to these characteristics of tumor cell, high-strength focusing ultrasonic therapy equipment is energy source with the ultrasound wave generally, but utilizes hyperacoustic penetrance and focusing; Launch high intensity focused ultrasound through the medium coupling at the external use ultrasonic therapeutic head; Get into human body through skin, focus on a spatial point of tumor tissues, and the intensive temperature of instantaneous generation raises (being higher than 60 ℃); Add its cavitation and mechanical oscillation effect, destroy the tissue of spatial point.Through tumor is carried out so by put line, by line to face, treat to the pointwise of body by face, thereby treat whole tumor tissues, the realization therapeutic purposes.
In the process of using high intensity focused ultrasound to treat; In order to guide tissue inside and the situation of change of body surface in focus ultrasonic location and the monitor treatment process; High-strength focusing ultrasonic therapy equipment generally is equipped with image monitoring, and main flow is configured to the B ultrasonic sound shadow as monitoring system at present.
A large amount of ultrasound medicine basic research and clinical practices show: in time rationally regulating of high-strength focusing ultrasonic therapy process middle water level, water temperature and oxygen content is the important leverage of 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 of passing through) has been assembled great amount of heat, if this part skin surface is exposed to suddenly in the air, can produce skin burn in various degree; Add anesthetis use amount less and less in the present ultrasonic therapeutic, the mobile possibility of aggravating this skin burn of render patients self.Secondly, higher water temperature (be lower than but near body temperature) is disadvantageous or even deleterious (when water temperature is higher than normal body temperature) for timely cooling body surface.In addition, if control the improper interface that produces air and water in sound passage (treating the ultrasonic path of passing through) zone, can produce reflection at this interface after the treatment ultrasound emission, the acoustic beam that reflects also can produce certain infringement to equipment.
For the water level of monitoring WATER AS FLOW MEDIUM and the variation of water temperature in the ultrasonic therapeutic process, be that level sensor and cooling-water temperature sensor are housed in the WATER AS FLOW MEDIUM container generally speaking, and give the operation doctor in the software operation interface prompt.
Control for water temperature; Can utilize the read value of cooling-water temperature sensor to make corresponding automatization assist control process, but this mode lacks motility, this is owing to can discharge lot of energy in the ultrasonic output procedure; Because patient's individual variation; The reaction of patient's body surface is also far from each other, though water temperature in relatively reasonable scope, part patient's skin surface also can produce burning in various degree owing to heat radiation is untimely.
For water level control, depend on the operation doctor and just can adjust judgement the observation of monitoring image or even actual water level.This mode is very not directly perceived; Even it also only is to indicate the position of water outlet in container that patterned demonstration is arranged; Do not connect the state of the state of WATER AS FLOW MEDIUM and human body, the doctor will just can make water reach required state through observing repeatedly to regulate by rule of thumb in therapeutic process.
With regard to oxygen content, when WATER AS FLOW MEDIUM air (mainly being oxygen) content is high more, ultrasonic loss must be many more in water, and it is many more to cause therapeutic efficiency to descend.When oxygen content in the WATER AS FLOW MEDIUM too high (oxygen content is greater than 4.0ppm), just must change WATER AS FLOW MEDIUM to reduce oxygen content.But; Still lack at present Quantitative Monitoring means to oxygen content in the WATER AS FLOW MEDIUM; Generally also be according to corresponding adjusting is made in the having or not of underwater bubble on the monitoring image (if water oxygen content is too much, later can produce bubble in the treatment ultrasound emission), what observation by the operation doctor.
Summary of the invention
In order to address the above problem, the present invention provides a kind of ultrasonic therapeutic apparatus and WATER AS FLOW MEDIUM control method thereof, with the automatic detection and the adjusting of water level, water temperature and the oxygen content of realizing WATER AS FLOW MEDIUM.
In order to realize above purpose; The present invention provides a kind of ultrasonic therapeutic apparatus; Comprise the level detection sensor of the ultrasonic image monitoring system that is used to obtain monitoring image and the water level that is used to detect WATER AS FLOW MEDIUM, it is characterized in that, also comprise the auxiliary water control system; Said auxiliary water control system comprises: body surface position acquiring unit, and it is used for obtaining the ultrasonic body surface position of passing through through the monitoring image that the ultrasonic image monitoring system obtains; With the water level control unit, the body surface position that it is used for obtaining through body surface position acquiring unit and make human body be immersed in the desired depth of WATER AS FLOW MEDIUM through water level control water inlet and draining that level detection sensor detects.
Preferably, the skin curves of the ultrasonic body surface skin boundary that passes through of said body surface position utilization expression is represented.
Preferably; Said water level control unit is carried out following water level control operation: obtain water level and skin curves from level detection sensor and body surface position acquiring unit respectively; And judge that whether water level is than the high predetermined watermark threshold of skin curves; If then repeat this step, otherwise carry out following steps; With judge that whether said water level surpasses the maximum water level that allows, if do not surpass, then the control water inlet is till the high said watermark threshold of water table ratio skin curves; If surpass, then control draining so that water level reduce to maximum allow below the water level till; Repeat above-mentioned steps then; Wherein, according to the needs of treatment, said watermark threshold is for being not less than 3cm.Preferably, said watermark threshold is between 3cm-5cm.
Correspondingly, the present invention provides a kind of WATER AS FLOW MEDIUM method for controlling water level of ultrasonic therapeutic apparatus, comprising: the monitoring image that obtains according to the ultrasonic image monitoring system obtains the ultrasonic body surface position of passing through; Make human body be immersed in the desired depth in the WATER AS FLOW MEDIUM according to the body surface position that obtains with through water level control water inlet and draining that level detection sensor detects.
On the other hand; The present invention provides a kind of ultrasonic therapeutic apparatus; Comprise the ultrasonic image monitoring system that is used to obtain monitoring image, it is characterized in that, also comprise the auxiliary water control system; Said auxiliary water control system comprises: body surface position acquiring unit, and it is used for obtaining the ultrasonic body surface position of passing through through the monitoring image that the ultrasonic image monitoring system obtains; With change water control unit, whether its ultrasonic skin surface that passes through of body surface position judgment that is used for obtaining through body surface position acquiring unit exists overheated characteristic, if then water is changed in control, otherwise repeats this step; And/or the number of bubbles on the detection monitoring image, and whether judge number of bubbles greater than predetermined blister threshold value, if then water is changed in control, otherwise repeats this step.
Preferably, to show as the skin surface border rough for said overheated characteristic.
Preferably, said bubble threshold value is no more than 15, and further preferred said bubble threshold value is 5-15.
Correspondingly, the present invention provides a kind of WATER AS FLOW MEDIUM of ultrasonic therapeutic apparatus to change water controling method, comprising: the monitoring image according to obtaining through the ultrasonic image monitoring system obtains the ultrasonic body surface position of passing through; Whether there is overheated characteristic according to the ultrasonic skin surface that passes through of the body surface position judgment of obtaining through body surface position acquiring unit, if then water is changed in control, otherwise repeats this step; And/or the number of bubbles on the detection monitoring image, and whether judge number of bubbles greater than predetermined bubble threshold value, if then water is changed in control, otherwise repeats this step.
On the other hand; The present invention provides a kind of ultrasonic therapeutic apparatus; Comprise the level detection sensor of the ultrasonic image monitoring system that is used to obtain monitoring image and the water level that is used to detect WATER AS FLOW MEDIUM, it is characterized in that, also comprise the auxiliary water control system; Said auxiliary water control system comprises: body surface position acquiring unit, and it is used for obtaining the ultrasonic body surface position of passing through through the monitoring image that the ultrasonic image monitoring system obtains; The water level control unit, the body surface position that it is used for obtaining through body surface position acquiring unit and make human body be immersed in the desired depth of WATER AS FLOW MEDIUM through water level control water inlet and draining that level detection sensor detects; With change water control unit, whether its ultrasonic skin surface that passes through of body surface position judgment that is used for obtaining through body surface position acquiring unit exists overheated characteristic, if then water is changed in control, otherwise repeats this step; And/or the number of bubbles on the detection monitoring image, and whether judge number of bubbles greater than predetermined bubble threshold value, if then water is changed in control, otherwise repeats this step.
Through above technical scheme, the present invention can be based on water level, water temperature and the oxygen content of the automatic control medium water of the image information of monitoring image.
Description of drawings
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 sketch map of the position relation between B ultrasonic image and the ultrasonic probe;
Fig. 5 is the sketch map of the position relation 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 is changed 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 sketch map of the level and smooth evaluation algorithm of skin curves of the second embodiment of the present invention.
The specific embodiment
Below, will present invention is described with reference to accompanying drawing and embodiment.In following embodiment with description; With high-strength focusing ultrasonic therapy equipment is that example describes; But should be appreciated that the present invention is not limited to high-strength focusing ultrasonic therapy equipment, but can likewise be applied to the ultrasonic therapeutic apparatus of other type of working medium water.
(first embodiment)
The purpose of present embodiment is the water level of control medium water.In the present embodiment; Utilize the B ultrasonic image of the B pattern ultrasonic image monitoring system of high-strength focusing ultrasonic therapy equipment; Use image processing techniques on image, to find out the horizontal plane position of body surface position and WATER AS FLOW MEDIUM; And through the horizontal plane position of body surface position and WATER AS FLOW MEDIUM relatively judging whether human body is immersed in the appropriate depth in the WATER AS FLOW MEDIUM, thereby control is intake and draining.Like this, can the state of human body and the state of WATER AS FLOW MEDIUM be connected, thereby prevent to cause when high-strength focusing ultrasonic therapy owing to water level is lower, body surface partly is exposed to the problem that causes skin burn in the air.
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 used to obtain the B ultrasonic monitoring image; Treatment subsystem 2 comprises the level detection sensor (being installed in the bottom of the WATER AS FLOW MEDIUM container that fills WATER AS FLOW MEDIUM that is used to immerse human body) of the water level that is used to detect WATER AS FLOW MEDIUM.In therapeutic process, water level control is manual.The doctor sets new target water level numerical value through the observation to water level on the B ultrasonic monitoring image on the basis of level detection sensor sensing numerical value, thereby reaches the purpose of control 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 can be found out with Fig. 2; Improvements of the present invention are between ultrasonic image monitoring system 1 and treatment subsystem 2, to have increased auxiliary water control system 5, are used to utilize the ultrasonoscopy that obtains through ultrasonic image monitoring system 1 that the water level of WATER AS FLOW MEDIUM is controlled.The opening and closing of auxiliary water control system 5 are by operation doctor control.
The auxiliary water control system 5 of present embodiment comprises body surface position acquiring unit and water level control unit, and wherein, body surface position acquiring unit is used for obtaining the ultrasonic body surface position of passing through through the monitoring image that ultrasonic image monitoring system 1 obtains; The body surface position that the water level control unit is used for obtaining through body surface position acquiring unit and make human body be immersed in the desired depth of WATER AS FLOW MEDIUM through water level control water inlet and draining that level detection sensor detects.
In the present embodiment; The body surface position is represented with the skin curves of the skin boundary of representing body surface; That is to say; Body surface position acquiring unit obtains the skin curves of the ultrasonic body surface that passes through, and the water level control unit is according to the water level control water inlet and the draining of this skin curves and level detection sensor detection.
Fig. 3 is the flow chart of the WATER AS FLOW MEDIUM method for controlling water level of being carried out by body surface position acquiring unit and water level control unit of the first embodiment of the present invention.
At first, in step 301, judge whether to allow to carry out automatic water level control, that is, whether the operation doctor opens automatic water level control.If the operation doctor has opened automatic water level control, then carry out following circulation water level monitoring and control flow, otherwise finish automatic water level control.
Then, in step 302, obtain the current static monitoring image (that is current monitoring image) of a pair from ultrasonic image monitoring system 1.Then, in step 303, use the skin site of image processing techniques human body body surface from current monitoring image, that is, and skin curves.For example, can be white according to human body skin in the B ultrasonic monitoring image, and remainder to be the characteristics of black utilize edge detection method to find out skin boundary as skin curves.Then, in step 304, judge whether to detect skin curves, if detect skin curves, execution in step 305 and 306 then, otherwise execution in step 307.
In step 305, read the value (that is, the water level of detection) of level detection sensor, and convert read value on the current monitoring image position.Transformation process is following: because level detection sensor is installed in the bottom of WATER AS FLOW MEDIUM container; Be fixed; And the Ultrasonic-B probe of B model ultrasonic image monitoring system 1 is fixed on the mechanical component in the WATER AS FLOW MEDIUM container; The position of this member can obtain through reading encoder values, therefore, can obtain the position relation of the water level and the Ultrasonic-B probe of level detection sensor detection.In addition, as shown in Figure 4, the physical space of B ultrasonic imaging is that the center with the Ultrasonic-B probe upper surface is relative initial point; Image direction upwards; The imaging scope is roughly at 4CM to 36CM, and imaging precision is the millimeter level, according to this relation; Can set up the position relation of water level that level detection sensor detects and B ultrasonic monitoring image, thereby the water level of detection is converted into the picture position in the image coordinate space of current monitoring 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).The height of water level of supposing the level detection sensor feedback is w, and the Ultrasonic-B probe upper surface is d with respect to the level altitude of container bottom, and the position of waterline on image is p, and then three's relation is:
p＝w-d
Then; In step 306; Water level is compared in position on the current monitoring image and the position of skin curves on current monitoring image, with judge water level in the position on the current monitoring image whether than the high predetermined watermark threshold in the position of skin curves on current monitoring 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, skin curves can be represented with the intersection point of skin curves and the spatial Y axle of image coordinate or minimum point or other coordinate in the image coordinate space of skin curves in the position on the current monitoring image.In the present embodiment, the position of skin curves on current monitoring image represented with the coordinate of the intersection point of skin curves and the spatial Y axle of image coordinate, and watermark threshold is got 5cm.If judge that water level is higher than skin curves more than the position 5cm on the current monitoring image in the position on the current monitoring image, then finish single monitoring task, jump to step 301 and get into next circulation.If judge that water level is not higher than skin curves more than the position 5cm on the current monitoring image in the position on the current monitoring image, then carry out following steps.
In step 307, judge whether the current water level that level detection sensor detects surpasses the maximum water level that allows, if do not surpass; Then in step 308, the control water inlet immerses in the water human body till the high said watermark threshold of water table ratio skin curves; If surpass, then in step 309, control draining; So that water level reduce to maximum allow below the water level till, thereby drain unnecessary water.Here, maximum to allow the water level acquiescence be the position of the upper surface of WATER AS FLOW MEDIUM container, when specifically treating by the different set of operation doctor according to case.After control water inlet or the draining, finish single monitoring task, jump to step 301 and get into next circulation.
Through above method; Can be automatically according to body surface position and water level control water inlet and draining, so that human body is immersed in the degree of depth suitable in the WATER AS FLOW MEDIUM, when preventing focused ultrasound therapy; High-intensity ultrasonic exposed to air skin is caused burnt, thereby ensures the safety of ultrasonic therapeutic.Here point out,, be not limited to obtaining of skin curves shown in Figure 3 about obtaining of body surface position; For example, can utilize other image processing techniques (for example, region segmentation method) to obtain skin curves; Perhaps, consecutive image sequence capable of using is obtained dynamic skin curves.
(second embodiment)
The purpose of present embodiment is the water temperature and the oxygen content of control medium water.
With regard to water temperature, in therapeutic process, when water temperature is too high; Body surface skin cools off not enough because of the hyperabsorption heat dispels the heat, possibly cause skin slightly to be burnt, at this moment; Body surface skin can demonstrate overheated characteristic; It is unsmooth on monitoring image, to show as the skin surface border, and heavy again person shows as graininess even bag shape projection, and the skin curves that obtains in this case also is rough.Therefore; In the present embodiment, utilize the B ultrasonic image of the B pattern ultrasonic image monitoring system of high-strength focusing ultrasonic therapy equipment, use image processing techniques that the skin curves on the image is detected; If it is rough to detect skin curves; Then there is overheated (burning) characteristic in skin, otherwise there is not overheated characteristic in skin, and water temperature is suitable.Certainly, except skin curves, also can utilize other characteristics of image (for example, the variation of average gray value around the ultrasonic body surface that passes through before and after the output) to express this variation of human body skin surface.
With regard to oxygen content, body surface and Ultrasonic-B probe have certain distance usually, and this part is filled by WATER AS FLOW MEDIUM, when oxygen content is too much in the WATER AS FLOW MEDIUM, in therapeutic process, can produce bubble.WATER AS FLOW MEDIUM shows as black on monitoring image, bubble shows as the about 1 millimeter circular white dot of diameter on monitoring image.When water oxygen gas content is higher, can observes bubble on the monitoring image in ultrasound wave output back in about 1 second and rise from the bottom.Therefore, in the present embodiment, use bubble quantity and bubble on the image processing techniques surveillance map picture, carry out from moving the water auxiliary adjustment when a certain amount of when surpassing.The condition of water is during ultrasonic therapeutic at present: between 10 degrees centigrade to 25 degrees centigrade, oxygen content is below 3PPM.A large amount of tests show: water oxygen gas content is big more, and the bubble that in WATER AS FLOW MEDIUM, produces during ultrasonic output is many more, when number of bubbles more than or equal to 15 the time, the oxygen content of WATER AS FLOW MEDIUM surpasses 3ppm.
In the present embodiment; Identical with first embodiment, be utilized in the auxiliary water control system 5 that connects between ultrasonic image monitoring system 1 and the treatment subsystem 2 and the water temperature and the oxygen content of WATER AS FLOW MEDIUM controlled according to the ultrasonoscopy that obtains through ultrasonic image monitoring system 1.
Auxiliary water control system 5 according to present embodiment comprises body surface position acquiring unit and changes water control unit that wherein, body surface position acquiring unit is used for obtaining the ultrasonic body surface position of passing through through the monitoring image that ultrasonic image monitoring system 1 obtains; Change the ultrasonic skin surface that passes through of body surface position judgment that water control unit is used for obtaining through body surface position acquiring unit and whether have overheated characteristic, if then water is changed in control, otherwise repeats this step; And/or the number of bubbles on the detection monitoring image, and whether judge number of bubbles greater than predetermined bubble threshold value, if then water is changed in control, otherwise repeats this step.Here, as stated, the bubble threshold value can be taken as no more than 15, and preferably, the blister threshold value is between 5-15.For example, requiring under the comparatively strict situation desirable 10 of bubble threshold value.
In the present embodiment, identical with first embodiment, the body surface position is represented with the skin curves of the skin boundary of representing the ultrasonic body surface that passes through.Body surface position acquiring unit obtains skin curves, changes water control unit and judges whether this skin curves exists overheated characteristic and/or detect the number of bubbles on the monitoring image, thereby the water temperature and/or the oxygen content of WATER AS FLOW MEDIUM are controlled.
Fig. 6 be according to a second embodiment of the present invention by body surface position acquiring unit with change the flow chart that WATER AS FLOW MEDIUM that water control unit carries out is changed water controling method.
At first, in step 601, judge whether to allow to carry out from moving water management, that is, whether the operation doctor opens from moving water management.Certainly move water management if the operation doctor has opened, then carry out following inflow and outflow of water monitoring and control flow, otherwise finish from moving water management.
Then, in step 602, obtain the current static monitoring image (that is current monitoring image) of a pair from ultrasonic image monitoring system 1.
Then, whether execution in step 603-605 exists overheated characteristic to judge whether water temperature is too high through the detection of skin curve.Concrete testing process is following.At first, the same with step 603 in step 603, the skin curves of human body body surface from current monitoring image.Then, in step 604, judge whether to detect skin curves, if detect skin curves, then execution in step 605, otherwise finish single monitoring task, jump to step 601 and get into next circulation.In step 605, whether detection of skin exists overheated characteristic,, as stated, judges whether skin curves is level and smooth that is.If skin curves is unsmooth, that is, there is overheated characteristic in skin, and then execution in step 608-609 controls and changes water, if skin curves is level and smooth, shows that then water temperature is suitable, at this moment, finishes single monitoring task, jumps to step 601 and gets into 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.
At first, in step 701, begin, calculate the slope of the line of 4 pixels of being separated by (perhaps other number of pixels point, for example, 3 pixels or 5 pixels) one by one from an end of curve.The slope function of supposing to calculate x, 2 line slopes of y be Fn (x, y) so as shown in Figure 8, calculate successively Fn (a1, e3), Fn (b2; F4), Fn (c2, g4), Fn (d3, g5), Fn (e3, h5), Fn (f4; I5) ..., all calculated up to the slope of the line of possible 4 pixels of being separated by and to be accomplished, suppose that the slope value that calculates is designated as successively: s1, s2; S3, s4, s 5, s6 ...
Then, in step 702, calculate the difference of adjacent two slopes, i.e. (s1-s2), (s2-s3), (s3-s4), (s4-s5), (s5-s6) ...Suppose that these differences are designated as d1, d2, d3, d4, d5, d6 successively ...
Then, in step 703, the difference that in step 702, obtains is calculated arithmetic mean of instantaneous value, remember that this meansigma methods is A0.
Then, in step 704, calculate the absolute value of the difference of each difference and meansigma methods A0 one by one, such as | d1-A0|, | d2-A0|, | d3-A0|, | d4-A0|, | d5-A0|, | d6-A0| ..., remember that successively these values are c1, c2, c3, c4, c5, c6 ...
At last, in step 705, the statistics in step 704 in the income value greater than predetermined difference value (for example; 0.2) the quantity of value, and judge that in step 706 whether quantity greater than the value of predetermined difference value is greater than predetermined number (for example, 5); If; Judge in step 707 that then skin is unsmooth, have overheated characteristic, otherwise judge that in step 708 skin is level and smooth.Then, in step 709, return judged result.
In addition, in execution in step 603-605, also execution in step 606-607 judges through bubble quantity and bubble on the detected image whether the oxygen content of WATER AS FLOW MEDIUM is excessive.Specifically, in step 606, detect the number of bubbles on the current monitoring image.For example, on current monitoring image, at first carry out binaryzation, use partitioning algorithm to find out element about diameter 1mm to the zone below the skin curves in the image after the binaryzation then, and calculate the number of these elements as bubble.Then, in step 607, judge that whether the number of bubbles that in step 606, obtains is greater than the bubble threshold value; If greater than the bubble threshold value, then execution in step 608-609 controls and changes water; If be not more than the bubble threshold value, show that then the oxygen content of WATER AS FLOW MEDIUM is suitable, at this moment; Finish single monitoring task, jump to step 601 and get into next circulation.Here, the bubble threshold value can be located between the 5-15, is set before treatment by the operation doctor.
When changing water, at first in step 608, judge whether to change water, if changing water, then finish single monitoring task, jump to step 601 and get into next circulation, otherwise execution in step 609.In step 609, establish the replacing water time, and send and change the water instruction, to 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 for example can give tacit consent to and be made as 2 minutes, also can be provided with voluntarily certainly by the operation doctor.
Through above embodiment, can realize water level and the water temperature of WATER AS FLOW MEDIUM, the automatic detection of oxygen content respectively.Certainly, also can first embodiment and second embodiment be made up use, that is to say that auxiliary water control system 5 can comprise body surface position acquiring unit, water level control unit simultaneously and change water control unit.In addition, this description is described as the ultrasonic therapeutic object with human body, but should be appreciated that the present invention is applicable to any organism.
Below with reference to accompanying drawing and embodiment the present invention is described in detail, still, 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 (13)
1. ultrasonic therapeutic apparatus comprises the level detection sensor of the ultrasonic image monitoring system that is used to obtain monitoring image and the water level that is used to detect WATER AS FLOW MEDIUM it is characterized in that also comprise the auxiliary water control system, said auxiliary water control system comprises:
Body surface position acquiring unit, it is used for obtaining the ultrasonic body surface position of passing through according to the monitoring image that obtains through the ultrasonic image monitoring system; With
The water level control unit, it is used for making human body be immersed in the desired depth of WATER AS FLOW MEDIUM according to the body surface position that obtains through body surface position acquiring unit with through water level control water inlet and draining that level detection sensor detects.
2. equipment according to claim 1 is characterized in that, said body surface position utilizes the skin curves of the ultrasonic body surface skin boundary that passes through of expression to represent.
3. equipment according to claim 2 is characterized in that, said water level control unit is carried out following water level control operation:
Obtain water level and skin curves from level detection sensor and body surface position acquiring unit respectively, and whether judge water level, if then repeat this step, otherwise carry out following steps than the high predetermined watermark threshold of skin curves; With
Judge whether said water level surpasses the maximum water level that allows, if do not surpass, then control gets into water till the high said watermark threshold of water table ratio skin curves; If surpass; Then control draining so that water level reduce to maximum allow below the water level till, repeat above-mentioned steps then.
4. equipment according to claim 3 is characterized in that, wherein, said watermark threshold is for being not less than 3cm.
5. equipment according to claim 4 is characterized in that, wherein, said watermark threshold is between the 3cm-5cm.
6. the WATER AS FLOW MEDIUM method for controlling water level of a ultrasonic therapeutic apparatus, said ultrasonic therapeutic apparatus comprise the level detection sensor of the ultrasonic image monitoring system that is used to obtain monitoring image and the water level that is used to detect WATER AS FLOW MEDIUM, and said method comprises:
Monitoring image according to obtaining through the ultrasonic image monitoring system obtains the ultrasonic body surface position of passing through;
Make human body be immersed in the desired depth in the WATER AS FLOW MEDIUM according to the body surface position that obtains with through water level control water inlet and draining that level detection sensor detects.
7. a ultrasonic therapeutic apparatus comprises the ultrasonic image monitoring system that is used to obtain monitoring image, it is characterized in that, also comprises the auxiliary water control system, and said auxiliary water control system comprises:
Body surface position acquiring unit, it is used for obtaining the ultrasonic body surface position of passing through according to the monitoring image that obtains through the ultrasonic image monitoring system; With
Change water control unit, it is used for whether having overheated characteristic according to the ultrasonic skin surface that passes through of body surface position judgment that obtains through body surface position acquiring unit, if then water is changed in control, otherwise repeats this step; And/or the number of bubbles on the detection monitoring image, and whether judge number of bubbles greater than predetermined bubble threshold value, if then water is changed in control, otherwise repeats this step.
8. equipment according to claim 7 is characterized in that, it is rough that said overheated characteristic shows as the skin surface border.
9. equipment according to claim 7 is characterized in that, said bubble threshold value is no more than 15.
10. the WATER AS FLOW MEDIUM of a ultrasonic therapeutic apparatus is changed water controling method, and said ultrasonic therapeutic apparatus comprises the ultrasonic image monitoring system that is used to obtain monitoring image, and said method comprises:
Monitoring image according to obtaining through the ultrasonic image monitoring system obtains the ultrasonic body surface position of passing through;
Whether there is overheated characteristic according to the ultrasonic skin surface that passes through of the body surface position judgment of obtaining through body surface position acquiring unit, if then water is changed in control, otherwise repeats this step; And/or
Detect the number of bubbles on the monitoring image, and whether judge number of bubbles, if then water is changed in control, otherwise repeats this step greater than predetermined bubble threshold value.
11. method according to claim 10 is characterized in that, said bubble threshold value is no more than 15.
12. a ultrasonic therapeutic apparatus comprises the level detection sensor of the ultrasonic image monitoring system that is used to obtain monitoring image and the water level that is used to detect WATER AS FLOW MEDIUM it is characterized in that also comprise the auxiliary water control system, said auxiliary water control system comprises:
Body surface position acquiring unit, it is used for obtaining the ultrasonic body surface position of passing through according to the monitoring image that obtains through the ultrasonic image monitoring system;
The water level control unit, it is used for making human body be immersed in the desired depth of WATER AS FLOW MEDIUM according to the body surface position that obtains through body surface position acquiring unit with through water level control water inlet and draining that level detection sensor detects; With
Change water control unit, it is used for whether having overheated characteristic according to the ultrasonic skin surface that passes through of body surface position judgment that obtains through body surface position acquiring unit, if then water is changed in control, otherwise repeats this step; And/or the number of bubbles on the detection monitoring image, and whether judge number of bubbles greater than predetermined bubble threshold value, if then water is changed in control, otherwise repeats this step.
13. equipment according to claim 12 is characterized in that, said bubble threshold value is no more than 15.
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| CN109381807A (en) * | 2017-08-14 | 2019-02-26 | 重庆海扶医疗科技股份有限公司 | Ultrasonography monitoring system and method, supersonic therapeutic system |
| CN111028193A (en) * | 2019-03-26 | 2020-04-17 | 桑尼环保（江苏）有限公司 | Real-time water surface data monitoring system |
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| CN111028193B (en) * | 2019-03-26 | 2020-09-04 | 三明市润泽环保科技有限公司 | Real-time water surface data monitoring system |
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| CN102526895B (en) | 2015-08-05 |
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